Database Users

last tempt at asking for help

Ok all i have tried for weeks now to get a simple webview app sorted. i have managed to get this up on the market but it needs a few more features like menu for refresh back forward etc.
It seems nobody really wants to helps so how much will it cost me for you to help with it?

explain a little more, you after someone to code it for you or design the ui ?

Well basically I got a basic webview made from tutorials, but that is about as far as my skills go. I need a few more features like options menu, stop the back button exiting app and go back a page instead and also if possible but not essential change loading bar for loading circle which spins in middle if screen while loading. I have tried to ask for help with what code I need and where to put it but no luck. I pretty much need it coded or at least to be told what code and exactly where in my code I need to fit it in.
Sent from my Desire HD using XDA App

Where have you tried asking? Tackle one issue at a time, and post some example code.
StackOverflow is a great site for programming questions and you should get some good answers there.
But before posting make sure you search first.
The back button shouldnt exit the app if there is a activity that was displayed before it.

cyberpedz said:
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");
}
}
Click to expand...
Click to collapse
Sent from my Desire HD using XDA App
Sent from my Desire HD using XDA App

I found this tutorial after a quick google search - http://kahdev.wordpress.com/2008/11/25/building-a-menu-for-your-android-v10-r1-app/
It seems quite simple to follow. Let me know if you have any issues and I try give you an example for your code tonight.

Ok I have edited your code to add a menu, and also to set the back button of the phone to go back to the previous page in the webview, instead of previous activity.
I found the code for this here
I have commented bits of the code so hopefully its understandable.
If you have any questions or it doesn't work let me know.
Don't just take what I have done and use it (although you can). Go through it and make sure you understand what I have done. That's the only way you will learn app development.
Code:
package com.windowcleaningforums;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
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;
//DECLARE webview variable outside of onCreate function so we can access it in other functions (menu)
public WebView webView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
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");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
//Add menu items, second value is the id, use this in the onOptionsItemSelected
menu.add(0,1, 0, "Back");
menu.add(0, 2, 0, "Forward");
return true;
}
@Override
public boolean onOptionsItemSelected (MenuItem item){
switch (item.getItemId()){
//If the ID equals 1 , go back
case 1:
webView.goBack();
return true;
//If the ID equals 2 , go forward
case 2 :
webView.goForward();
return true;
}
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
webView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
}

I have seen these tutorials but my problem is I don't know how to fit it into my webview where should I add this in my code
Sent from my Desire HD using XDA App

Have a look at the code I posted.
What we are basically doing is adding new functions (or methods) inside our activity class. When I first started app development I also got confused as to where to add things.
These new methods override methods built into the activity, so we don't want to put them inside our onCreate method (where everything goes for setting up the activity, and where all your current code resides).
So we put them at any position after the closing brace of our onCreate. I've put them at the end.
I also moved the declaration of the webView variable to outside the onCreate method, so we can access it in the other functions we added.

Thank you so much I will look at this properly when I next get chance on my pc. thanks again for the help and taking the time to explain.
Sent from my Desire HD using XDA App

Thank you have have looked over the code and even added another button!
I have also added icons for each menu item after looking over some other code but not sure if i have done it correctly. they dont show untill the menu item has been clicked once. how can i get them to show right away? i put the images in res/drawable and called then in the code below, is this the correct way to do it?
Code:
package com.windowcleaningforums;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
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;
//DECLARE webview variable outside of onCreate function so we can access it in other functions (menu)
public WebView webView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
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");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
//Add menu items, second value is the id, use this in the onOptionsItemSelected
menu.add(0,1, 0, "Back");
menu.add(0, 2, 0, "Forward");
menu.add(0, 3, 0, "Refresh");
return true;
}
@Override
public boolean onOptionsItemSelected (MenuItem item){
switch (item.getItemId()){
//If the ID equals 1 , go back
case 1:
webView.goBack();
item.setIcon(R.drawable.back);
return true;
//If the ID equals 2 , go forward
case 2 :
webView.goForward();
item.setIcon(R.drawable.forward);
return true;
//If the ID equals 3 , go back
case 3:
webView.reload();
item.setIcon(R.drawable.refresh);
return true;
}
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
webView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
}

Comments below (marked -->), I'm not going to give you the answer, you need to understand why more that how.
Code:
package com.windowcleaningforums;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
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;
//DECLARE webview variable outside of onCreate function so we can access it in other functions (menu)
public WebView webView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
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");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
//Add menu items, second value is the id, use this in the onOptionsItemSelected
menu.add(0,1, 0, "Back");
menu.add(0, 2, 0, "Forward");
menu.add(0, 3, 0, "Refresh");
//--> Here you have finished configuring the menu
return true;
}
@Override
public boolean onOptionsItemSelected (MenuItem item){
// -->This is called when you select/tap a menu item (look at the method name)
switch (item.getItemId()){
//If the ID equals 1 , go back
case 1:
webView.goBack();
// --> Hence this happens _after_ you have tapped on the back menu item
item.setIcon(R.drawable.back);
return true;
//If the ID equals 2 , go forward
case 2 :
webView.goForward();
item.setIcon(R.drawable.forward);
return true;
//If the ID equals 3 , go back
case 3:
webView.reload();
item.setIcon(R.drawable.refresh);
return true;
}
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
webView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
}

As SilentMobius' comments pointout, you need to set your icons in the onCreateOptionsMenu, not the onOptionsItemSelected.
That's why they are only showing when you select the button.

Ah great thanks i figured it, didn't want to be given correct code just you giving the correct info to sort my self is good i know these are most likely simple things but nobody learns unless they ask questions thanks again.
Check my apps out in the market Luvdroid and window cleaning forums

Would you mind sharing your back, forward and refresh icons with me? I'm looking for something very clean and standardized for use on 12 webview apps for the some of the local municipalities.
SilentMobius said:
Comments below (marked -->), I'm not going to give you the answer, you need to understand why more that how.
Code:
package com.windowcleaningforums;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
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;
//DECLARE webview variable outside of onCreate function so we can access it in other functions (menu)
public WebView webView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
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("m.xxx.co.jp");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
//Add menu items, second value is the id, use this in the onOptionsItemSelected
menu.add(0,1, 0, "Back");
menu.add(0, 2, 0, "Forward");
menu.add(0, 3, 0, "Refresh");
//--> Here you have finished configuring the menu
return true;
}
@Override
public boolean onOptionsItemSelected (MenuItem item){
// -->This is called when you select/tap a menu item (look at the method name)
switch (item.getItemId()){
//If the ID equals 1 , go back
case 1:
webView.goBack();
// --> Hence this happens _after_ you have tapped on the back menu item
item.setIcon(R.drawable.back);
return true;
//If the ID equals 2 , go forward
case 2 :
webView.goForward();
item.setIcon(R.drawable.forward);
return true;
//If the ID equals 3 , go back
case 3:
webView.reload();
item.setIcon(R.drawable.refresh);
return true;
}
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
webView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
}
Click to expand...
Click to collapse

How to launch an Activity on ListView Item click android

hello
I am new to android application development and i am developing and application for learning purpose.
Can any body please help me in creating an activity that launch and activity on ListView Item Click.
I am using Following code for Populating Listview Items.
filename: activity_menu.java
package com.my.android.app;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.app.LauncherActivity.ListItem;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
public class activity_menu extends Activity {
String[] countries = new String[] {
"Contacts",
"SMS",
"Files & Photos",
"Prefrences",
"Logout",
};
// Array of integers points to images stored in /res/drawable-ldpi/
int[] flags = new int[]{
R.drawable.phonebook,
R.drawable.sms,
R.drawable.filesphotos,
R.drawable.settings,
R.drawable.key,
};
// Array of strings to store currencies
String[] currency = new String[]{
"Manage Contacts Backup",
"Manage SMS Backup",
"Manage files & Photos Backup",
"Set your prefrences",
"Logout of Application",
};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu);
// Each row in the list stores country name, currency and flag
List<HashMap<String,String>> aList = new ArrayList<HashMap<String,String>>();
for(int i=0;i<5;i++){
HashMap<String, String> hm = new HashMap<String,String>();
hm.put("txt", countries);
hm.put("cur", currency);
hm.put("flag", Integer.toString(flags) );
aList.add(hm);
}
// Keys used in Hashmap
String[] from = { "flag","txt","cur" };
// Ids of views in listview_layout
int[] to = { R.id.flag,R.id.txt,R.id.cur};
// Instantiating an adapter to store each items
// R.layout.listview_layout defines the layout of each item
SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), aList, R.layout.listview_layout, from, to);
// Getting a reference to listview of main.xml layout file
ListView listView = ( ListView ) findViewById(R.id.listview);
// Setting the adapter to the listView
listView.setAdapter(adapter);
}
}
Please help on this. waiting for Responses.

Try this
Code:
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
// Do your action here
}
});

There are multiple ways. If using a ListFragment/ListActivity, onListItemClick can also be used. However, I think that that is used especially with a programmatically-defined ListView.

If you want to start a new Activity, do some research about Intents.

SagiLo said:
Try this
Code:
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
// Do your action here
}
});
Click to expand...
Click to collapse
This. Use the position parameter if you want it to only open when a particular item is clicked (It is zero-based, if I remember correctly)
Then, to open the Intent:
Code:
Intent myIntent = new Intent(getApplicationContext(), ActivityName.class);
startActivity(myIntent);
Opening on any listitem click:
Code:
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
Intent myIntent = new Intent(getApplicationContext(), ActivityName.class);
startActivity(myIntent);
}
});
Opening on a specific item:
Code:
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
if (position == ITEM_POSITION_HERE)
{
Intent myIntent = new Intent(getApplicationContext(), ActivityName.class);
startActivity(myIntent);
}
}
});

how so i implement the code to open new activity on row cick?
cyr0s said:
This. Use the position parameter if you want it to only open when a particular item is clicked (It is zero-based, if I remember correctly)
Then, to open the Intent:
Code:
Intent myIntent = new Intent(getApplicationContext(), ActivityName.class);
startActivity(myIntent);
Opening on any listitem click:
Code:
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
Intent myIntent = new Intent(getApplicationContext(), ActivityName.class);
startActivity(myIntent);
}
});
Opening on a specific item:
Code:
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
if (position == ITEM_POSITION_HERE)
{
Intent myIntent = new Intent(getApplicationContext(), ActivityName.class);
startActivity(myIntent);
}
}
});
Click to expand...
Click to collapse
How do i implement this code in my main activity's java file?
suppose, i have a main activity which contains the listview and i have another activity "Activity_game"
and i want to open Activity_game on clicking the first row,
so i put "0" at "ITEM_POSITION_HERE" and "game" at the place of "ActivityName"
but it gives my a bunch of errors and it doesn't work
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
if (position == ITEM_POSITION_HERE)
{
Intent myIntent = new Intent(getApplicationContext(), ActivityName.class);
startActivity(myIntent);
}
}
});

nnnn1111 said:
How do i implement this code in my main activity's java file?
suppose, i have a main activity which contains the listview and i have another activity "Activity_game"
and i want to open Activity_game on clicking the first row,
so i put "0" at "ITEM_POSITION_HERE" and "game" at the place of "ActivityName"
but it gives my a bunch of errors and it doesn't work
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
if (position == ITEM_POSITION_HERE)
{
Intent myIntent = new Intent(getApplicationContext(), ActivityName.class);
startActivity(myIntent);
}
}
});
Click to expand...
Click to collapse
We need to know which errors you get.
Read this: http://forum.xda-developers.com/showthread.php?t=2439748

one question
nikwen said:
We need to know which errors you get.
Read this: http://forum.xda-developers.com/showthread.php?t=2439748
Click to expand...
Click to collapse
my problem is , when i run the app, it doesn't show any rows , not even any listview , or string
(just blank white page)
i have two activities
first one is Activity_main.xml in which ive implemented listview
here is it's java file
package com.example.desi;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.widget.AdapterView;
public class MainActivity extends Activity {
String[] items = { "item 1", "item 2", "item 3", "item 4", "item 5" };
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
switch( position )
{
case 0: Intent newActivity = new Intent(this, Munda.class);
startActivity(newActivity);
break;
}
}
}
and another activity is Activity_munda.xml
so, i want to run "Activity_munda" through on row click of listview
i also want to have many activities later in my app
my project is error free right now
do you think i have incomplete code?

nnnn1111 said:
my problem is , when i run the app, it doesn't show any rows , not even any listview , or string
(just blank white page)
i have two activities
first one is Activity_main.xml in which ive implemented listview
here is it's java file
package com.example.desi;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.widget.AdapterView;
public class MainActivity extends Activity {
String[] items = { "item 1", "item 2", "item 3", "item 4", "item 5" };
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
switch( position )
{
case 0: Intent newActivity = new Intent(this, Munda.class);
startActivity(newActivity);
break;
}
}
}
and another activity is Activity_munda.xml
so, i want to run "Activity_munda" through on row click of listview
i also want to have many activities later in my app
my project is error free right now
do you think i have incomplete code?
Click to expand...
Click to collapse
Your code is incomplete. You haven't populated the layout "activity_main.xml" here. and haven't added the list view, So it is indeed correct the app displays a blank page with no errors.

vijai2011 said:
Your code is incomplete. You haven't populated the layout "activity_main.xml" here. and haven't added the list view, So it is indeed correct the app displays a blank page with no errors.
Click to expand...
Click to collapse
Right. Read this: http://www.vogella.com/articles/AndroidListView/article.html

i already tried that
vijai2011 said:
Your code is incomplete. You haven't populated the layout "activity_main.xml" here. and haven't added the list view, So it is indeed correct the app displays a blank page with no errors.
Click to expand...
Click to collapse
but with no luck
its very complicated
can you please give me a simple tutorial ?
please dont refer to any other tutorial as i have already tried all of them,
thanks

nnnn1111 said:
but with no luck
its very complicated
can you please give me a simple tutorial ?
please dont refer to any other tutorial as i have already tried all of them,
thanks
Click to expand...
Click to collapse
Come on, you haven't tried all of them. Please don't let everyone else do the work for you. And if you can manage to do it yourself, it will be a better learning experience.
I can offer that you try the tutorial I posted and if your code doesn't work, you can post it together with a logcat and we'll check it.

haha i know
nikwen said:
Come on, you haven't tried all of them. Please don't let everyone else do the work for you. And if you can manage to do it yourself, it will be a better learning experience.
I can offer that you try the tutorial I posted and if your code doesn't work, you can post it together with a logcat and we'll check it.
Click to expand...
Click to collapse
but ive been searching for like 15 days about this problem on stack overflow , saw like 30 posts but they arent clear , please do me a favor and
tell me in few steps you will also feel good helping me.
and it will be a VERY big favor to me , trust me

nnnn1111 said:
but ive been searching for like 15 days about this problem on stack overflow , saw like 30 posts but they arent clear , please do me a favor and
tell me in few steps you will also feel good helping me.
and it will be a VERY big favor to me , trust me
Click to expand...
Click to collapse
Read this about ListActivity. It should answer your questions: http://www.vogella.com/articles/AndroidListView/article.html#listactivity
And I won't post step by step guides on how to implement ListViews. There are many great tutorials out there. I can help you if you have problems/errors with your code, but @vijai2011 has already explained what you need to do.

You cannot expect anyone to spoon feed you. We are here to help people who try to do something but run into problems. Not people who doesnt even try to understand what they do. The guides by vogella are very simple and there is no problem with the guide. You cannot simply copy paste the codes from the tutorial and expect it to compile and work.

vijai2011 said:
You cannot expect anyone to spoon feed you. We are here to help people who try to do something but run into problems. Not people who doesnt even try to understand what they do. The guides by vogella are very simple and there is no problem with the guide. You cannot simply copy paste the codes from the tutorial and expect it to compile and work.
Click to expand...
Click to collapse
i didn't find my answer on that website

nnnn1111 said:
i didn't find my answer on that website
Click to expand...
Click to collapse
Then it may mean that you dont know what you are searching for! Because the tutorial is all about what you need - ListView!

{Q} Web View inside a fragment

I have a viewpager with four webview fragments. Im trying to get a GoBack Action to my WebView which is inside of a fragment. But i cant implement it right into my code here is the code of my webview in my fragments. I also can't seem to get a downloadListener to work either. Sorry I am kinda new to fragments and trying to understand how they work.
Code:
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebSettings.RenderPriority;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.LinearLayout;
public class Fragment1 extends Fragment {
private static final String WebSettings = null;
private WebView webView;
private Bundle webViewBundle;
[user=439709]@override[/user]
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
LinearLayout ll = (LinearLayout) inflater.inflate(R.layout.fragment_1,
container, false);
webView = (WebView) ll.findViewById(R.id.webview);
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setLoadWithOverviewMode(true);
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setSupportZoom(true);
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.getSettings().setAllowFileAccess(true);
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setRenderPriority(RenderPriority.HIGH);
if (webViewBundle == null) {
try{
webView.loadUrl("http://www.google.com");
}catch (Exception e){
e.printStackTrace();}
} else {
webView.restoreState(webViewBundle);
}
return ll;
}
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
[user=439709]@override[/user]
public void onPause() {
super.onPause();
webViewBundle = new Bundle();
webView.saveState(webViewBundle);
}
}

dfuse06 said:
I have a viewpager with four webview fragments. Im trying to get a GoBack Action to my WebView which is inside of a fragment. But i cant implement it right into my code here is the code of my webview in my fragments. I also can't seem to get a downloadListener to work either. Sorry I am kinda new to fragments and trying to understand how they work.
Code:
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebSettings.RenderPriority;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.LinearLayout;
public class Fragment1 extends Fragment {
private static final String WebSettings = null;
private WebView webView;
private Bundle webViewBundle;
[user=439709]@override[/user]
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
LinearLayout ll = (LinearLayout) inflater.inflate(R.layout.fragment_1,
container, false);
webView = (WebView) ll.findViewById(R.id.webview);
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setLoadWithOverviewMode(true);
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setSupportZoom(true);
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.getSettings().setAllowFileAccess(true);
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setRenderPriority(RenderPriority.HIGH);
if (webViewBundle == null) {
try{
webView.loadUrl("http://www.google.com");
}catch (Exception e){
e.printStackTrace();}
} else {
webView.restoreState(webViewBundle);
}
return ll;
}
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
[user=439709]@override[/user]
public void onPause() {
super.onPause();
webViewBundle = new Bundle();
webView.saveState(webViewBundle);
}
}
Click to expand...
Click to collapse
You will need to override the onKeyUp method in the Activity. Then search for the fragment there and call a method of your subclass of Fragment which you want to be executed when the back key is pressed.

nikwen said:
You will need to override the onKeyUp method in the Activity. Then search for the fragment there and call a method of your subclass of Fragment which you want to be executed when the back key is pressed.
Click to expand...
Click to collapse
So I can't actually do this inside the fragment?
Sent from my SCH-I535 using Tapatalk 2

dfuse06 said:
So I can't actually do this inside the fragment?
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
I do not think so.

nikwen said:
I do not think so.
Click to expand...
Click to collapse
That must be all my errors then.
Sent from my SCH-I535 using Tapatalk 2

nikwen said:
You will need to override the onKeyUp method in the Activity. Then search for the fragment there and call a method of your subclass of Fragment which you want to be executed when the back key is pressed.
Click to expand...
Click to collapse
could you post a example on how it should look. This is driving me nuts nothing is working

dfuse06 said:
could you post a example on how it should look. This is driving me nuts nothing is working
Click to expand...
Click to collapse
Google!!!
Check those:
http://stackoverflow.com/questions/12210906/fragment-activity-catch-onkeydown-and-use-in-fragment
http://stackoverflow.com/questions/10631425/android-webview-inside-fragment-how-to-add-goback

nikwen said:
Google!!!
Check those:
http://stackoverflow.com/questions/12210906/fragment-activity-catch-onkeydown-and-use-in-fragment
http://stackoverflow.com/questions/10631425/android-webview-inside-fragment-how-to-add-goback
Click to expand...
Click to collapse
lol!!! I have googled it. Looked on stackoverflow posted on stack
http://stackoverflow.com/questions/16379973/goback-and-download-listener-in-webview-fragment
tried all kinda codes I found from there and no luck!

dfuse06 said:
lol!!! I have googled it. Looked on stackoverflow posted on stack
http://stackoverflow.com/questions/16379973/goback-and-download-listener-in-webview-fragment
tried all kinda codes I found from there and no luck!
Click to expand...
Click to collapse
Post your code (or the important parts of it) so that we can find your errors.

Having the same issue
dfuse06 said:
lol!!! I have googled it. Looked on stackoverflow posted on stack
tried all kinda codes I found from there and no luck!
Click to expand...
Click to collapse
I'm having the same issue. Did you find resolution? If so, please post it.

[NEWBIE] ProgressDialog Not Working properly

I am a newbie in android development. I was learning some of these android Dialog API stuff. But i got stuck with progressDialogs. When I run the app in the sdk.. The Dialog never ends. Where as, it should terminate after 5 seconds. I am unable to understand the problem. Please help me out. Thanks in advance...
SOURCE CODE:
Code:
package com.example.dolaog;
import android.location.GpsStatus.Listener;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener, Runnable {
Button b, b2;
View a;
ProgressDialog d;
Thread t = new Thread();
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b = (Button) findViewById(R.id.button1);
b2 = (Button) findViewById(R.id.button2);
b.setOnClickListener(this);
b2.setOnClickListener(this);
}
[user=439709]@override[/user]
public void onClick(View arg0) {
switch (arg0.getId()) {
case R.id.button1:
showDialog(0);
break;
case R.id.button2:
d = ProgressDialog.show(this, "Initialising", " Please wait...", true);
t.start();
break;
}
}
public void run() {
// TODO Auto-generated method stub
try {
t.sleep(5000);
d.dismiss();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
[user=439709]@override[/user]
protected Dialog onCreateDialog(int g) {
switch (g) {
case 0:
Builder b = new AlertDialog.Builder(this);
b.setIcon(R.drawable.ic_launcher);
b.setTitle("From Crazyandroidgalaxy, please hit me !!");
b.setPositiveButton("asd", new DialogInterface.OnClickListener() {
[user=439709]@override[/user]
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(),
"I am Tanmay aka Crazyandroidgalaxy admin!",
Toast.LENGTH_LONG).show();
}
});
return b.create();
}
return null;
}
}

If you don't get a force close then it sounds like your thread never starts.
Code:
Thread t = new Thread();
Change that to just:
Code:
Thread t;
and in your OnCreate method:
Code:
t = new Thread();

The problem is that the run() method needs to be a method of the Thread. Use this:
Code:
Thread t = new Thread() {
public void run() {
// TODO Auto-generated method stub
try {
t.sleep(5000);
d.dismiss();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
However, this WILL NOT work due to the fact that you can just change the UI from the UI Thread.
So change it to this:
Code:
package com.example.dolaog;
import android.location.GpsStatus.Listener;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.Toast;
[COLOR="Red"]import android.os.Handler;[/COLOR]
public class MainActivity extends Activity implements OnClickListener, Runnable {
Button b, b2;
View a;
ProgressDialog d;
[COLOR="Red"]Handler handler;
Thread t = new Thread() {
public void run() {
// TODO Auto-generated method stub
try {
sleep(5000);
handler.post(new Runnable() {
public void run() {
d.dismiss();
}
};
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};[/COLOR]
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
[COLOR="Red"] handler = new Handler();[/COLOR]
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b = (Button) findViewById(R.id.button1);
b2 = (Button) findViewById(R.id.button2);
b.setOnClickListener(this);
b2.setOnClickListener(this);
}
[user=439709]@override[/user]
public void onClick(View arg0) {
switch (arg0.getId()) {
case R.id.button1:
showDialog(0);
break;
case R.id.button2:
d = ProgressDialog.show(this, "Initialising", " Please wait...", true);
t.start();
break;
}
}
[user=439709]@override[/user]
protected Dialog onCreateDialog(int g) {
switch (g) {
case 0:
Builder b = new AlertDialog.Builder(this);
b.setIcon(R.drawable.ic_launcher);
b.setTitle("From Crazyandroidgalaxy, please hit me !!");
b.setPositiveButton("asd", new DialogInterface.OnClickListener() {
[user=439709]@override[/user]
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(),
"I am Tanmay aka Crazyandroidgalaxy admin!",
Toast.LENGTH_LONG).show();
}
});
return b.create();
}
return null;
}
}
That should work.

Thank you so much!
Sent from my GT-S6102 using xda app-developers app

hiphop12ism said:
Thank you so much!
Sent from my GT-S6102 using xda app-developers app
Click to expand...
Click to collapse
You are welcome.

nikwen said:
You are welcome.
Click to expand...
Click to collapse
But can you, explain me the code modification. I am unfamiliar with the Handler class and post method...
Thanks :laugh:

hiphop12ism said:
But can you, explain me the code modification. I am unfamiliar with the Handler class and post method...
Thanks :laugh:
Click to expand...
Click to collapse
Yeah, the UI is created in one thread. That is what is called the "UI thread". The UI can just be modified from that UI thread.
If you want to modify the UI from another thread, you use handlers. If you pass a Runnable object to their run() method, that runnable will be executed in the UI thread. So you can modify the UI from that thread.
Better code would be using an AsyncTask. Basically, it is a wrapper class for Thread and Handler. (Additionally, there are some performance enhancement due to a thread pool.)

nikwen said:
Yeah, the UI is created in one thread. That is what is called the "UI thread". The UI can just be modified from that UI thread.
If you want to modify the UI from another thread, you use handlers. If you pass a Runnable object to their run() method, that runnable will be executed in the UI thread. So you can modify the UI from that thread.
Better code would be using an AsyncTask. Basically, it is a wrapper class for Thread and Handler. (Additionally, there are some performance enhancement due to a thread pool.)
Click to expand...
Click to collapse
Thank you so much.
But, the problem is... Whenever the 2nd button (b2) is clicked for the second time..
The app force closes..

hiphop12ism said:
Thank you so much.
But, the problem is... Whenever the 2nd button (b2) is clicked for the second time..
The app force closes..
Click to expand...
Click to collapse
That happens because the thread has already been started.
Check whether it is running and if it is not, start it. If it is, do nothing.
Use the isAlive() method for that.

Gotcha... Thanks!!
Sent from my GT-S6102 using xda app-developers app

ProgressBar not working

Hey, I was working on progress Bars. But I am having a little trouble. On the following code, The bar seems to work perfectly, but just when its done loading. The app crashes. Please help me out. Thanks in advance
Code:
package com.example.progresses;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.ProgressBar;
public class MainActivity extends Activity {
ProgressBar b;
int progressStatus = 0;
static int progress = 0;
Thread t;
Handler hand = new Handler();
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b = (ProgressBar) findViewById(R.id.progressBar1);
b.setMax(200);
new Thread(new Runnable() {
public void run() {
while (progressStatus <= 200) {
progressStatus = doWork();
hand.post(new Runnable() {
public void run() {
b.setProgress(progressStatus);
}
});
}
b.setVisibility(View.GONE);
}
}).start();
}
private int doWork() {
try {
Thread.sleep(50);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ++progress;
}
}
LOGCAT

You have to do this via the handler, too:
Code:
b.setVisibility(View.GONE);
Every action regarding the UI from another thread has to be done via an handler.

nikwen said:
You have to do this via the handler, too:
Code:
b.setVisibility(View.GONE);
Every action regarding the UI from another thread has to be done via an handler.
Click to expand...
Click to collapse
Thank you!

hiphop12ism said:
Thanks you!
Click to expand...
Click to collapse
Welcome.