Need Assistance with Google Nav Drawer - Java for Android App Development

Need Assistance with Google Nav Drawer - Java for Android App Development

Hello everyone, need some assistance with Google Nav Drawer. This is what Im trying to do. Im trying to create a new type of android settings with this new code or a shell as you would...Than if it works out, incorporate in into source for a future rom or current like CM or AOKP.
Heres my delima, I setup a fragment as a preferencefragment and it force closes and Eclipse says Source not found... Ive tried both Headers and Preference Screens. I perfer Preference Screens for what I want to do. Im testing this UI for a stock rom first to see if users like this idea.
Im going based off of this as a base.
This is what I have so far without the preferences showing up.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
So I would assume my first fragment would look something like this? But its force closing...
Code:
package com.example.navi;
import java.util.List;
import android.content.Context;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.preference.PreferenceActivity.Header;
import android.preference.PreferenceFragment;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class MainFragment extends PreferenceFragment {
public static Fragment newInstance(Context context) {
MainFragment f = new MainFragment();
return f;
}
[user=439709]@override[/user]
public void onBuildHeaders(List<Header> headers) {
loadHeadersFromResource(R.xml.wireless, headers);
}
private void loadHeadersFromResource(int wireless, List<Header> headers) {
// TODO Auto-generated method stub
}
}
Any feedback on the idea or code would be appreciated.

Nx Biotic said:
Hello everyone, need some assistance with Google Nav Drawer. This is what Im trying to do. Im trying to create a new type of android settings with this new code or a shell as you would...Than if it works out, incorporate in into source for a future rom or current like CM or AOKP.
Heres my delima, I setup a fragment as a preferencefragment and it force closes and Eclipse says Source not found... Ive tried both Headers and Preference Screens. I perfer Preference Screens for what I want to do. Im testing this UI for a stock rom first to see if users like this idea.
Im going based off of this as a base.
This is what I have so far without the preferences showing up.
So I would assume my first fragment would look something like this? But its force closing...
Code:
package com.example.navi;
import java.util.List;
import android.content.Context;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.preference.PreferenceActivity.Header;
import android.preference.PreferenceFragment;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class MainFragment extends PreferenceFragment {
public static Fragment newInstance(Context context) {
MainFragment f = new MainFragment();
return f;
}
[user=439709]@override[/user]
public void onBuildHeaders(List<Header> headers) {
loadHeadersFromResource(R.xml.wireless, headers);
}
private void loadHeadersFromResource(int wireless, List<Header> headers) {
// TODO Auto-generated method stub
}
}
Any feedback on the idea or code would be appreciated.
Click to expand...
Click to collapse
Are you sure that this is the entire code? You do not load the menu resource.

Hmm...
Gesendet von meinem HTC One mit Tapatalk 4

No i didn't post all of it, just a sample fragment. The code im using is in the github link and disregard any xmls. I tendbto rename them alot.
Sent from my HTCONE using xda app-developers app

Nx Biotic said:
No i didn't post all of it, just a sample fragment. The code im using is in the github link and disregard any xmls. I tendbto rename them alot.
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
I meant that it is not the whole fragment. Not all brackets are closed and obviously some parts of the code are missing.

Not much code is used to display a preference screen... Like 5 lines at least, if not.
The main activity fragment is what im thinking is screwing me up.
Sent from my HTCONE using xda app-developers app

Here's an updated outlook on things
This is what I presently have
Main Activity that generates Nav Drawer
Code:
package com.example.navi;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class MainActivity extends FragmentActivity {
final String[] menuEntries = {"Wireless & Networks","Personal","Phone","System"};
final String[] fragments = {
"com.navi.fragments.Wireless",
"com.example.navi.OneFragment",
"com.example.navi.TwoFragment",
"com.example.navi.ThreeFragment",
};
private ActionBarDrawerToggle drawerToggle;
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActionBar().getThemedContext(), android.R.layout.simple_list_item_1, menuEntries);
final DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer_layout);
final ListView navList = (ListView) findViewById(R.id.drawer);
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
drawerToggle = new ActionBarDrawerToggle(
this,
drawer,
R.drawable.ic_drawer,
R.string.drawer_open,
R.string.drawer_close
) {
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
}
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
}
};
drawer.setDrawerListener(drawerToggle);
navList.setAdapter(adapter);
navList.setOnItemClickListener(new OnItemClickListener(){
[user=439709]@override[/user]
public void onItemClick(AdapterView<?> parent, View view, final int pos,long id){
drawer.setDrawerListener( new DrawerLayout.SimpleDrawerListener(){
[user=439709]@override[/user]
public void onDrawerClosed(View drawerView){
super.onDrawerClosed(drawerView);
FragmentTransaction tx = getSupportFragmentManager().beginTransaction();
tx.replace(R.id.main, Fragment.instantiate(MainActivity.this, fragments[pos]));
tx.commit();
}
});
drawer.closeDrawer(navList);
}
});
FragmentTransaction tx = getSupportFragmentManager().beginTransaction();
tx.replace(R.id.main,Fragment.instantiate(MainActivity.this, fragments[0]));
tx.commit();
}
[user=439709]@override[/user]
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
[user=439709]@override[/user]
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
drawerToggle.onConfigurationChanged(newConfig);
}
[user=439709]@override[/user]
public boolean onOptionsItemSelected(MenuItem item) {
if (drawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
[user=439709]@override[/user]
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
PreferenceScreen (What did I do to allow this to not show and force close the app?)
Code:
package com.navi.fragments;
import android.os.Bundle;
import android.preference.PreferenceFragment;
import com.example.navi.R;
public class Wireless extends PreferenceFragment {
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.wireless);
}
}package com.navi.fragments;
import android.os.Bundle;
import android.preference.PreferenceFragment;
import com.example.navi.R;
public class Wireless extends PreferenceFragment {
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.wireless);
}
}
Fragments that do currently work but like the example presented, only shows a blank layout.
Code:
package com.example.navi;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class OneFragment extends Fragment {
public static Fragment newInstance(Context context) {
OneFragment f = new OneFragment();
return f;
}
[user=439709]@override[/user]
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_one, container, false);
return rootView;
}
}
Fragment Layout
Code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:text="@string/fragment_one"
android:textColor="@color/holo_blue" />
</RelativeLayout>
Wireless XML
Code:
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<PreferenceCategory android:title="Wireless and Networks" >
<PreferenceScreen
android:title="Quick Wifi" >
<intent
android:action="android.intent.action.MAIN"
android:targetClass="com.android.settings.wifi.WifiSettings"
android:targetPackage="com.android.settings" />
</PreferenceScreen>
<PreferenceScreen
android:title="Quick Bluetooth" >
<intent
android:action="android.intent.action.MAIN"
android:targetClass="com.android.settings.bluetooth.BluetoothSettings"
android:targetPackage="com.android.settings" />
</PreferenceScreen>
<PreferenceScreen
android:title="Quick Hotspot" >
<intent
android:action="android.intent.action.MAIN"
android:targetClass="com.android.settings.TetherSettings"
android:targetPackage="com.android.settings" />
</PreferenceScreen>
</PreferenceCategory>
</PreferenceScreen>

Related

webview help

I am having trouble creating a webview app for my already mobile ready site.
I keep getting this error in the emulator:
The application window cleaning forums (process com.windowcleaningforums) has stopped unexpectadly
The app never actualy loads just goes straight to this.
Basically i already have my sites mobile ready and browsing to them on your mobile works fine, but would like to put these into apps.
With a back, forward and refresh button when hitting menu button on phone.
(I am not sure what i need to add these yet but any advice would be great)
My project is set as bellow
Application name: Window Cleaning Forums
Package name: com.windowcleaningforums
Create activity: windowcleaningforums
Mini SDK version: 4
windowcleaningforums.java
Code:
package com.windowcleaningforums;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class windowcleaningforums extends Activity {
/** Called when the activity is first created. */
//@Override
private class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
WebView mWebView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mWebView = (WebView) findViewById(R.id.webView);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl("http://www.windowcleaningforums.co.uk");
mWebView.setWebViewClient(new HelloWebViewClient());
}
}
Main.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<webView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
Manifest
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.windowcleaningforums"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".windowcleaningforums"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="4" />
<uses-permission android:name="android.permission.INTERNET" />
</manifest>
I am very new and im not quite sure what is causing it any help would be great. Thanks

I get this if that is any help i am not sure what it means though.
[2011-01-12 22:35:07 - DeviceMonitor]Sending jdwp tracking request failed!
This is the log if that helps also i really could do with some help peeps, nobody seems to want to. I know i am new and prob asking stupid questions but how am i supposed to learn if i dont ask questions.

Hi cyberpedz,
Probably just a typo but in your main.xml the WebView tag should have a capital "W" like so:
<WebView xmlns:andro...
You did the right thing looking in the log. That's what helped to figure this one out: there was an exception stack trace in the log. (Keep an eye out for the "AndroidRuntime" tag)

Thanks i have changed that but no difference.
I do have a red dot over a hellowebview class though
When viewing windowcleaningforums.java and looking at the right in outline i have a read dot over hellowebviewclient
Could it be something to do with this bit of code?
Code:
public class windowcleaningforums extends Activity {
/** Called when the activity is first created. */
//@Override
private class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}

Try moving the
Code:
//@Override
just before onCreate and uncomment it.
Also Java classes should start with a capital (public class Windowcleaningforum). Make sure you modify the Manifest accordingly.

Ok finally i have it working, it was me being blind i missed a webView now changed to Webview and all works thanks so much.
Now i am trying to get a loading progress bar or even better spinning circle.
What code would i need for this and where abouts in my java bellow would i fit it in?
Code:
package com.windowcleaningforums;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class windowcleaningforums extends Activity {
/** Called when the activity is first created. */
//@Override
private class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
WebView mWebView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mWebView = (WebView) findViewById(R.id.WebView);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl("http://www.windowcleaningforums.co.uk");
mWebView.setWebViewClient(new HelloWebViewClient());
}
}

Anyone know how to get the spinning circle while pages loads? and how to imput into my code above?
Would be a great help

Ok finally i have a running webview in the market what i would like to do now is add a soft menu for a back, refresh and forward button what code do i need and where would i put it in my java below?
Code:
package com.windowcleaningforums;
import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class windowcleaningforums extends Activity
{
final Activity activity = this;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
WebView webView = (WebView) findViewById(R.id.WebView);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress)
{
activity.setTitle(" Loading...");
activity.setProgress(progress * 100);
if(progress == 100)
activity.setTitle(R.string.app_name);
}
});
webView.setWebViewClient(new WebViewClient() {
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)
{
// Handle the error
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
});
webView.loadUrl("http://www.windowcleaningforums.co.uk");
}
}

So why is it no body wants to help is it the way i ask? is it that developers think they are above the noob? or you really cant b bothered!!
I have even offered to pay for help in the past yet nobody is interested maybe it is that no one really knows the answers.

cyberpedz said:
So why is it no body wants to help is it the way i ask? is it that developers think they are above the noob? or you really cant b bothered!!
I have even offered to pay for help in the past yet nobody is interested maybe it is that no one really knows the answers.
Click to expand...
Click to collapse
It's not that developers can't be bothered, but generally they will have other things to do than help out others. The thing is, you're asking on help for pretty basic stuff. This is something that you should know already, and if don't I suggest you should read through Android's developer website one more time and look at the API examples/demos too.
Hints for your problem; Add the buttons as a merge layout in your XML and then link them with your web view, or add them as menu options. Googling for both will surely give you enough results to get you on your way, these are pretty basic things you want to do after all.

[Q] Beginning Programmer, need help with personal app

I'm creating an app to keep track of all the messier objects in the sky. I have made a list view in the main activity that holds all the objects, when clicked it should open my other activity and display the objects info.
The program now goes to my second activity no matter what item i choose but doesn't change any of the TextView text without foreclosing.
also how can I recognize what object was clicked and change the information displayed for each object
The main Activity Java looks like this:
Code:
package com.kabluey.messier;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class MessierCatalog extends ListActivity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Set string array
setListAdapter(new ArrayAdapter<String>(this, R.layout.main, objects));
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
// When clicked, change text in object info to clicked object name
TextView objText = (TextView) findViewById(R.id.txtObjName);
objText.setText(((TextView) view).getText());
Intent i = new Intent(MessierCatalog.this,Objectinfo.class);
startActivity(i);
}
});
}
static final String[] objects = new String[]
{
"m1", "m2","m3","m4","m5", "m6","m7","m8","m9","m10","m11","m12","m13","m14"
,"m15","m16","m17","m18","m19","m19","m20","m21","m22","m23","m24","m25","m26","m27","m28","m29","m30","m31","m32","m33"
,"m34","m35","m36","m37","m38","m39","m40","m41","m42","m43","m44","m45","m46","m47","m48","m49","m50","m51","m52","m53"
,"m54","m55","m56","m57","m58","m59","m60","m61","m62","m63","m64","m65","m66","m67","m68","m69","m70","m71","m72","m73"
,"m74","m75","m76","m77","m78","m79","m80","m81","m82","m83","m84","m85","m86","m87","m88","m89","m90","m91","m92","m93"
,"m94","m95","m96","m97","m98","m99","m100","m101","m102","m103","m104","m105","m106","m107","m108","m109","m110"
};
}
The second activity has no code in it now and is just an xml layout:
Code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ImageView
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:src="@drawable/crab"
/>
<TableLayout
android:layout_width="fill_parent"
android:id="@+id/tableLayout1"
android:layout_height="wrap_content"
android:stretchColumns="1">
<TableRow>
<TextView
android:text="Name of Object:"
android:padding="3dip"/>
<TextView
android:id="@+id/txtObjName"
android:text="Object name here"
android:padding="3dip"
android:paddingLeft="5dip" />
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</TableRow>
<TableRow>
<TextView
android:text="Apparent Magnitude:"
android:padding="3dip"/>
<TextView
android:id="@+id/txtMagnitude"
android:paddingLeft="5dip"
android:text="9.0"/>
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</TableRow>
</TableLayout>
</LinearLayout>

I think it may have to do with your casting of "view" to type "TextView" in you onItemClick override. I don't think the "View" passed to this override is a "TextView" is it? I would think it is the ListView to which you added the OnItemClickListener event handler.

Have some suggestion / tips:
1. This is more organized, also initializes first the Strings
Code:
package com.kabluey.messier;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class MessierCatalog extends ListActivity
{
/** Called when the activity is first created. */
private static final String[] objects = {
"m1", "m2","m3","m4","m5", "m6","m7","m8","m9","m10","m11","m12","m13","m14"
,"m15","m16","m17","m18","m19","m19","m20","m21","m22","m23","m24","m25","m26","m27","m28","m29","m30","m31","m32","m33"
,"m34","m35","m36","m37","m38","m39","m40","m41","m42","m43","m44","m45","m46","m47","m48","m49","m50","m51","m52","m53"
,"m54","m55","m56","m57","m58","m59","m60","m61","m62","m63","m64","m65","m66","m67","m68","m69","m70","m71","m72","m73"
,"m74","m75","m76","m77","m78","m79","m80","m81","m82","m83","m84","m85","m86","m87","m88","m89","m90","m91","m92","m93"
,"m94","m95","m96","m97","m98","m99","m100","m101","m102","m103","m104","m105","m106","m107","m108","m109","m110"
};
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Set string array
setListAdapter(new ArrayAdapter<String>(this, R.layout.main, objects));
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
// When clicked, change text in object info to clicked object name
TextView objText = (TextView) findViewById(R.id.txtObjName);
objText.setText(((TextView) view).getText());
//Log here!, but im almost sure this is bad
Intent i = new Intent(MessierCatalog.this,Objectinfo.class);
startActivity(i);
}
});
}
2. Could you make a Log.i("APP", ((TextView) view).getText()) and upload output?. That appears like you're setting to your textview, the same text you got from it ( that's actually null / empty )
3. If output it's empty or not output, then this is the answer
Code:
package com.kabluey.messier;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class MessierCatalog extends ListActivity
{
/** Called when the activity is first created. */
private static final String[] objects = {
"m1", "m2","m3","m4","m5", "m6","m7","m8","m9","m10","m11","m12","m13","m14"
,"m15","m16","m17","m18","m19","m19","m20","m21","m22","m23","m24","m25","m26","m27","m28","m29","m30","m31","m32","m33"
,"m34","m35","m36","m37","m38","m39","m40","m41","m42","m43","m44","m45","m46","m47","m48","m49","m50","m51","m52","m53"
,"m54","m55","m56","m57","m58","m59","m60","m61","m62","m63","m64","m65","m66","m67","m68","m69","m70","m71","m72","m73"
,"m74","m75","m76","m77","m78","m79","m80","m81","m82","m83","m84","m85","m86","m87","m88","m89","m90","m91","m92","m93"
,"m94","m95","m96","m97","m98","m99","m100","m101","m102","m103","m104","m105","m106","m107","m108","m109","m110"
};
}
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Set string array
setListAdapter(new ArrayAdapter<String>(this, R.layout.main, objects));
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
// When clicked, change text in object info to clicked object name
TextView objText = (TextView) findViewById(R.id.txtObjName);
objText.setText(objects[position]);
Intent i = new Intent(MessierCatalog.this,Objectinfo.class);
startActivity(i);
}
});
}
Also for this cases it's not really needed TableRow, With a Relative layout it's enough, but I don't think that's a prob.
If you have some problem, feel free to contact me through PM.
Good luck, and cheers from colombia.
D4.

solved!
I searched the nets and found a solution, it seems to be working quite well.
thanks for all the help
My click listener now stores the value so both activities can access it
Code:
public void onItemClick(AdapterView<?> parent, View view,int position,long id)
{
Intent i = new Intent(MessierCatalog.this,Objectinfo.class);
//Get ListViews text and store it to "myText"
i.putExtra("myText", (((TextView) view).getText()));
startActivity(i);
}
The ObjectInfo activity now has code to store the ListViews text in String Variable and then set the text..
Code:
public class Objectinfo extends Activity
{
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.objectinfo);
TextView objName = (TextView) findViewById(R.id.txtObjName);
//store ListViews Text to String
String str = getIntent().getStringExtra("myText");
//Set text to stored ListView string
objName.setText(str);
}
}

Text input with DialogFragment

I am trying to get a value that user enters into a Dialog, using the recommended DialogFragment class for it, the Dialog constructs and runs fine, but I cannot return the value of the EditText parameter to the parent class, without get a Null pointer exception.
My DialogHost class, this constructs, returns and links the parent to its buttons.
Code:
package jo.app.co;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
public class DialogHost extends DialogFragment {
public interface NoticeDialogListener {
public void onDialogPositiveClick(DialogFragment dialog);
public void onDialogNegativeClick(DialogFragment dialog);
}
NoticeDialogListener mListener;
[user=439709]@override[/user]
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mListener = (NoticeDialogListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString());
}
}
[user=439709]@override[/user]
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
LayoutInflater inflater = getActivity().getLayoutInflater();
builder.setView(inflater.inflate(R.layout.dialog_add, null))
.setPositiveButton("Save", new DialogInterface.OnClickListener() {
[user=439709]@override[/user]
public void onClick(DialogInterface dialog, int id) {
mListener.onDialogPositiveClick(DialogHost.this);
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
DialogHost.this.getDialog().cancel();
}
});
return builder.create();
}
}
My MainActivity
Code:
package jo.app.co;
import android.app.DialogFragment;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.widget.EditText;
public class MainActivity extends FragmentActivity implements DialogHost.NoticeDialogListener {
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
showNoticeDialog();
}
public void showNoticeDialog() {
DialogFragment dialog = new DialogHost();
dialog.show(getFragmentManager(), "DialogHost");
}
[user=439709]@override[/user]
public void onDialogPositiveClick(DialogFragment dialog) {
EditText myText = (EditText) findViewById(R.id.item_added);
try {
Log.d ("IN TRY", myText.getText().toString());
}
catch (Exception e) {
Log.e ("IN CATCH", e.toString());
}
}
[user=439709]@override[/user]
public void onDialogNegativeClick(DialogFragment dialog) {
Log.d ("INMAIN", "REACHED NEG");
}
}
This is my layout for the add item dialog.
Code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<EditText
android:id="@+id/item_added"
android:inputType="text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="4dp"
android:hint="@string/hint_add_item" />
</LinearLayout>

It's because in your main activity you are trying to call findViewById:
swapnilraj said:
Code:
[user=439709]@override[/user]
public void onDialogPositiveClick(DialogFragment dialog) {
EditText myText = (EditText) findViewById(R.id.item_added);
try {
Log.d ("IN TRY", myText.getText().toString());
}
catch (Exception e) {
Log.e ("IN CATCH", e.toString());
}
}
Click to expand...
Click to collapse
This is not possible since the layout of the activity is not the one the dialog is using. There are multiple ways of doing this, for instance call findViewById in the dialog's onPositiveButtonListener and pass that value through your interface. It might be that you need to use the LayoutInflator in the onCreateDialog, set
LinearLayout linearl = (LinearLayout) inflater.inflate(...) and get the EditText from there. You then call setView(linearL) instead.

SimplicityApks said:
It's because in your main activity you are trying to call findViewById:
This is not possible since the layout of the activity is not the one the dialog is using. There are multiple ways of doing this, for instance call findViewById in the dialog's onPositiveButtonListener and pass that value through your interface. It might be that you need to use the LayoutInflator in the onCreateDialog, set
LinearLayout linearl = (LinearLayout) inflater.inflate(...) and get the EditText from there. You then call setView(linearL) instead.
Click to expand...
Click to collapse
I tried calling findViewById method in the onClick method in the Dialog class, but the function is not defined for a DialogInterface.onClickListner, I modified it to linearl method you told but I cannot get it to work either.
Could you make the changes in the 2 snippets above, it would be very helpful!

You'll have to setup listeners fo this and pass the string or whetever you want to pass to back to the activity which in its turn can handle it (do it by itself or pass this to another fragement).
Although not so much votes (0) the last answer here on stackoverflow has exeactly what you need.

text not showing in listview

I am creating a listview with a custom object containing 1 property(i will be creating other activities using objects with more than 1 property). my problem is it shows the correct number of rows but no text.
main.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="android link"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView android:id="@+id/list"
android:layout_height="fill_parent"
android:layout_width="fill_parent"/>
</LinearLayout>
grid_item.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="android link"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:minHeight="50dp">
<TextView android:id="@+id/item"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textStyle="bold"
android:textColor="#FFFFFF"
android:text=""
android:layout_alignParentLeft="true"/>
</RelativeLayout>
object java
Code:
package com.example.sarahjmusicprotocol;
import java.io.Console;
public class CategoriesObject
{
String category;
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
public CategoriesObject()
{
}
public CategoriesObject(String category)
{
this.category=category;
}
private void print()
{
System.out.printf("Category: {0}",category);
}
[user=439709]@override[/user]
public String toString()
{
return this.getCategory();
}
}
adapter java
Code:
package com.example.sarahjmusicprotocol;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class CategoryAdapter extends BaseAdapter
{
private List<CategoriesObject> categoryList;
private LayoutInflater layoutInflater;
public CategoryAdapter(final Context context, final List<CategoriesObject> categoriesList)
{
//super(context,0);
this.categoryList = categoriesList;
//this.activity=a;
layoutInflater = LayoutInflater.from(context);
}
public CategoriesObject getItem(int position)
{
return categoryList.get(position);
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
ViewHolder holder;
if(convertView == null)
{
convertView = layoutInflater.inflate(R.layout.grid_item, null);
holder = new ViewHolder();
holder.titleView=(TextView)convertView.findViewById(R.id.item);
convertView.setTag(holder);
}
else
{
holder=(ViewHolder)convertView.getTag();
}
holder.titleView.setText(categoryList.get(position).getCategory());
return convertView;
}
public int getCount()
{
return categoryList.size();
}
private static class ViewHolder
{
public TextView titleView;
}
}
main java
Code:
package com.example.sarahjmusicprotocol;
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class Main extends Activity
{
private ListView view;
private CategoryAdapter adapter;
private List<CategoriesObject> categoriesList;
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//categoriesList = CategoryDomain.getCategoryDomain().getCategories();
categoriesList = getCategories();
view = (ListView)findViewById(R.id.list);
adapter = new CategoryAdapter(this,categoriesList);
view.setAdapter(adapter);
}
private ArrayList getCategories()
{
ArrayList<CategoriesObject> list = new ArrayList<CategoriesObject>();
list.add(new CategoriesObject("Publishing"));
list.add(new CategoriesObject("Publishing"));
list.add(new CategoriesObject("Publishing"));
list.add(new CategoriesObject("Publishing"));
list.add(new CategoriesObject("Publishing"));
list.add(new CategoriesObject("Publishing"));
return list;
}
[user=439709]@override[/user]
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
//getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
any help will be appreciated.

You might want to use a debugger: http://forum.xda-developers.com/showthread.php?t=2325164

nikwen said:
You might want to use a debugger: http://forum.xda-developers.com/showthread.php?t=2325164
Click to expand...
Click to collapse
I'm not getting an error, it just doesn't show the text.

larryse said:
I'm not getting an error, it just doesn't show the text.
Click to expand...
Click to collapse
Yeah, have a look at the posts about using the debuggers of Eclipse or AndroidStudio.
They help you to understand what your app does. You can see which commands get executed at which time and the you can see the values of variables.
That might help you finding the problem.
(This doesn't require an Exception.)

Problems with RSS Reader

Hi Guys,
a friend of mine told me to ask the question here, I hope this is the right category.
I startet an android application project with an integrated RSS Reader.
I programmed it with a tutorial from a website ( I can't post the link because I'm new, sorry).
It went all good, no Errors or something like that. When I installed the .apk file on my device (Samsung S3, with standard ROM) and started it
the Rss news won't be shown. :-/
These are the files for my Rss Reader:
RssReader.java
Code:
package com.android.simplerssreader.util;
import java.util.List;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import com.android.simplerssreader.data.RssItem;
public class RssReader {
private String rssUrl;
public RssReader(String rssUrl){
this.rssUrl = rssUrl;
}
public List<RssItem> getItems() throws Exception {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
RssParseHandler handler = new RssParseHandler();
saxParser.parse (rssUrl, handler);
return handler.getItems();
}
}
RssParseHandler
Code:
package com.android.simplerssreader.util;
import java.util.ArrayList;
import java.util.List;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import com.android.simplerssreader.data.RssItem;
public class RssParseHandler extends DefaultHandler {
private List<RssItem> rssItems;
private RssItem currentItem;
private boolean parsingTitle;
private boolean parsingLink;
public RssParseHandler(){
rssItems = new ArrayList<RssItem>();
}
public List<RssItem> getItems(){
return rssItems;
}
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException{
if ("content-item".equals(qName)){
currentItem = new RssItem();
} else if ("title".equals(qName)){
parsingTitle=true;
} else if ("url".equals(qName)){
parsingLink = true;
}
};
@Override
public void endElement (String uri, String localName, String qName)
throws SAXException{
if ("content-item".equals(qName)){
rssItems.add(currentItem);
currentItem = null;
} else if ("title".equals(qName)){
parsingTitle = false;
} else if ("url".equals(qName)){
parsingLink = false;
}
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
if (parsingTitle) {
if (currentItem !=null)
currentItem.setTitle(new String(ch,start, length));
} else if (parsingLink) {
if(currentItem !=null){
currentItem.setLink(new String(ch, start, length));
parsingLink = false;
}
}
}
}
ListListener
Code:
package com.example.brueckenkopf_onlineapp;
import java.util.List;
import com.android.simplerssreader.data.*;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
public class ListListener implements OnItemClickListener {
List<RssItem> listItems;
Activity activity;
public ListListener(List<RssItem> listItems, Activity activity) {
this.listItems = listItems;
this.activity = activity;
}
public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
Intent i = new Intent (Intent.ACTION_VIEW);
i.setData(Uri.parse(listItems.get(pos).getLink()));
activity.startActivity(i);
}
}
RssItem
Code:
package com.android.simplerssreader.data;
public class RssItem {
private String title;
private String link;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getLink() {
return link;
}
public void setLink(String link) {
this.link = link;
}
}
MainActivity
Code:
package com.example.brueckenkopf_onlineapp;
import com.android.simplerssreader.data.RssItem;
import com.android.simplerssreader.util.RssReader;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.util.Log;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.support.v4.app.NavUtils;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
RssReader rssReader =new RssReader("Here comes the RSS Link, which I also can't post here");
ListView Items = (ListView)findViewById(R.id.listView1);
ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem>(this,android.R.layout.simple_list_item_1,rssReader.getItems());
Items.setAdapter(adapter);
Items.setOnItemClickListener(new ListListener(rssReader.getItems(), this)); } catch (Exception e){
Log.e("SimpleRssReader", e.getMessage());
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
The LogCat says it cannot open the RSS Link. But the Link is not wrong (I also tried it with an RSS Link of another website). Both don't work.
I hope you can help me

Database Users

welcome

Need Assistance with Google Nav Drawer - Java for Android App Development

Hmm... Gesendet von meinem HTC One mit Tapatalk 4

No i didn't post all of it, just a sample fragment. The code im using is in the github link and disregard any xmls. I tendbto rename them alot. Sent from my HTCONE using xda app-developers app

Not much code is used to display a preference screen... Like 5 lines at least, if not. The main activity fragment is what im thinking is screwing me up. Sent from my HTCONE using xda app-developers app

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