Functions to listview items - Java for Android App Development

It's easy, I have this code:
Code:
public class AcercaDe extends SherlockActivity implements OnItemClickListener{
/** Called when the activity is first created. */
ArrayList<Item> items = new ArrayList<Item>();
ListView listview=null;
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.acercade);
listview=(ListView)findViewById(R.id.listV_main);
items.add(new SectionItem("Information"));
items.add(new EntryItem("Root Checker Advanced", "v1.5.4"));
items.add(new EntryItem("Developer", "Daniel Gómez Martín"));
items.add(new EntryItem("Support", "[email protected]"));
items.add(new SectionItem("Contact"));
items.add(new EntryItem("Gmail", "[email protected]"));
items.add(new EntryItem("Twitter", "@DGM_torre"));
items.add(new EntryItem("Google+", "Daniel Gómez"));
EntryAdapter adapter = new EntryAdapter(this, items);
listview.setAdapter(adapter);
listview.setOnItemClickListener(this);
}
[user=439709]@override[/user]
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
EntryItem item = (EntryItem)items.get(position);
}
}
But I don't know how to add functions to each item, for example, if I click in "Gmail" open an email app to send a message.
Can anybody help me?
THANK'S!

DannyGM16 said:
It's easy, I have this code:
Code:
public class AcercaDe extends SherlockActivity implements OnItemClickListener{
/** Called when the activity is first created. */
ArrayList<Item> items = new ArrayList<Item>();
ListView listview=null;
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.acercade);
listview=(ListView)findViewById(R.id.listV_main);
items.add(new SectionItem("Information"));
items.add(new EntryItem("Root Checker Advanced", "v1.5.4"));
items.add(new EntryItem("Developer", "Daniel Gómez Martín"));
items.add(new EntryItem("Support", "[email protected]"));
items.add(new SectionItem("Contact"));
items.add(new EntryItem("Gmail", "[email protected]"));
items.add(new EntryItem("Twitter", "@DGM_torre"));
items.add(new EntryItem("Google+", "Daniel Gómez"));
EntryAdapter adapter = new EntryAdapter(this, items);
listview.setAdapter(adapter);
listview.setOnItemClickListener(this);
}
[user=439709]@override[/user]
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
EntryItem item = (EntryItem)items.get(position);
}
}
But I don't know how to add functions to each item, for example, if I click in "Gmail" open an email app to send a message.
Can anybody help me?
THANK'S!
Click to expand...
Click to collapse
You can use the position argument:
Code:
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
switch (position) {
case 0:
//What to do if the first item is selected...
break;
case 1:
//What to do if the second item is selected...
break;
//...
}
}

nikwen said:
You can use the position argument:
Code:
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
switch (position) {
case 0:
//What to do if the first item is selected...
break;
case 1:
//What to do if the second item is selected...
break;
//...
}
}
Click to expand...
Click to collapse
I'm going to try it! Thank's!
Enviado desde mi Galaxy Mini Plus 4G usando Tapatalk 2

Simply, it works
Enviado desde mi Galaxy Mini Plus 4G usando Tapatalk 2

DannyGM16 said:
Simply, it works
Enviado desde mi Galaxy Mini Plus 4G usando Tapatalk 2
Click to expand...
Click to collapse
Great.

nikwen said:
Great.
Click to expand...
Click to collapse
Nikwen, can you help me in my another post --> http://forum.xda-developers.com/showthread.php?t=2548804
Thank's!
Enviado desde mi GT-S5570I usando Tapatalk 2

DannyGM16 said:
Nikwen, can you help me in my another post --> http://forum.xda-developers.com/showthread.php?t=2548804
Thank's!
Enviado desde mi GT-S5570I usando Tapatalk 2
Click to expand...
Click to collapse
I always check the Java forums. I even saw your other post before this one.
Whenever I know the answer, I reply.

Related

[Q] Schedule with long delay

Hello guys. I'm making an app, its a kind of alarm scheduler but I have a problem with the code. Thats what im using
Code:
ScheduledThreadPoolExecutor scheduler=new ScheduledThreadPoolExecutor(1);
scheduler.schedule(new Runnable() {
public void run(){
alarm(1);
} }, delay , TimeUnit.SECONDS);
It works for low values of "delay" if I put a high value (11000 for example) and leave the device alone, I think it enters in sleep mode and dont execute the timer.
How can I solve that?
Thanks in advance
I dont know about the scheduler but an alarm manager can wake the phone from sleep if you want. Or run the alarm in the background while asleep
From something awesome
Thanks for your answer, worked for me.
Here's the code, it maybe help others
MainUI.java:
Code:
public class MainUI extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView boton =(TextView)findViewById(R.id.botonAplicar);
boton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent myIntent = new Intent(MainUI.this, WakeUpReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainUI.this, 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
int delay=1;
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, delay);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
Log.i("Test","Programmed");
}
});
}
}
WakeUpReceiver.java:
Code:
public class WakeUpReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
Log.i("Test","Wake Up Received");
}
}
Manifest:
Code:
<receiver android:process=":remote" android:name="WakeUpReceiver"></receiver>

Need help with my app

Hi I'm working on a custom Android launcher I'm running into a little problem I have an image button that indicates show all applications but the problem is I don't know the code syntax to show all installed applications when that button is clicked!!
Please help I tried googling for the last four hours and getting very frustrated
Thanks in advance
Rapsong11
Sent from my Nexus 4 using xda app-developers app
Maybe you should use PackageManager to query the installed applications for you.
For example, when you want the list of launchable activities. You can do like this:
Code:
// create a intent for the query below
Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
// add the intent category you want, if need
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
// get the instance of the package manager
PackageManager packageManager = context.getPackageManager();
// these are the activies you want
List<ResolveInfo> activities = packageManager.queryIntentActivities(mainIntent, 0);
Hope can help you
Code:
Here is my code:
package com.d4a.SchoolLauncher;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
import android.view.View;
import android.widget.HorizontalScrollView;
import android.widget.ImageButton;
import android.widget.ScrollView;
import android.content.Context;
import com.d4a.SchoolLauncher.R;
public class LauncherActivity extends Activity{
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//scroller
final HorizontalScrollView scroller= (HorizontalScrollView) findViewById(R.id.scroller);
scroller.setSmoothScrollingEnabled(true);
//apps
final ImageButton apps= (ImageButton) findViewById(R.id.all_apps); //my all apps button
apps.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
PackageManager packageManager = context.getPackageManager();
List<ResolveInfo> activities = packageManager.queryIntentActivities(mainIntent, 0);
}
});
final ImageButton wbrowser= (ImageButton) findViewById(R.id.wbrowser);
wbrowser.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
String url = "http://www.google.com";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
}
});
final ImageButton osettings= (ImageButton) findViewById(R.id.osettings);
osettings.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
startActivity(new Intent(Settings.ACTION_SETTINGS));
}
});
//remove from home screen button
//apps
final ImageButton delapps= (ImageButton) findViewById(R.id.delapps);
delapps.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
apps.setVisibility(View.GONE);
delapps.setVisibility(View.GONE);
}
});
//web browser
final ImageButton delwbrowser= (ImageButton) findViewById(R.id.delwbrowser);
delwbrowser.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
wbrowser.setVisibility(View.GONE);
delwbrowser.setVisibility(View.GONE);
}
});
//web browser
final ImageButton delosettings= (ImageButton) findViewById(R.id.dellosettings);
delosettings.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
osettings.setVisibility(View.GONE);
delosettings.setVisibility(View.GONE);
}
});
//add button
final ImageButton addshortcut= (ImageButton) findViewById(R.id.addshortcut);
addshortcut.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
startActivity(new Intent("com.PhysicsPhantom.Launcher"));
}
});
//done button
final ImageButton done= (ImageButton) findViewById(R.id.done);
done.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
delwbrowser.setVisibility(View.GONE);
delosettings.setVisibility(View.GONE);
delapps.setVisibility(View.GONE);
done.setVisibility(View.GONE);
addshortcut.setVisibility(View.GONE);
}
});
//edit button
final ImageButton edit= (ImageButton) findViewById(R.id.edit);
edit.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
if (apps.getVisibility()==View.VISIBLE){
delapps.setVisibility(View.VISIBLE);
}
if (wbrowser.getVisibility()==View.VISIBLE){
delwbrowser.setVisibility(View.VISIBLE);
}
if (osettings.getVisibility()==View.VISIBLE){
delosettings.setVisibility(View.VISIBLE);
}
done.setVisibility(View.VISIBLE);
addshortcut.setVisibility(View.VISIBLE);
}
});
//code to open editor for all delete buttons
//apps
apps.setOnLongClickListener(new View.OnLongClickListener() {
[user=439709]@override[/user]
public boolean onLongClick(View v) {
if (delapps.getVisibility()==View.GONE){
delapps.setVisibility(View.VISIBLE);
}
else{
delapps.setVisibility(View.GONE);
}
return true;
}
});
//web browser
wbrowser.setOnLongClickListener(new View.OnLongClickListener() {
[user=439709]@override[/user]
public boolean onLongClick(View v) {
if (delwbrowser.getVisibility()==View.GONE){
delwbrowser.setVisibility(View.VISIBLE);
}
else{
delwbrowser.setVisibility(View.GONE);
}
return true;
}
});
//settings
osettings.setOnLongClickListener(new View.OnLongClickListener() {
[user=439709]@override[/user]
public boolean onLongClick(View v) {
if (delosettings.getVisibility()==View.GONE){
delosettings.setVisibility(View.VISIBLE);
scroller.fullScroll(ScrollView.FOCUS_RIGHT);
}
else{
delosettings.setVisibility(View.GONE);
}
return true;
}
});
}
}
I get a error at: PackageManager packageManager = context.getPackageManager();
The error is as follows: context cannot be resolved
please help!!
[ code] tags would be helpful
out of ideas said:
[ code] tags would be helpful
Click to expand...
Click to collapse
just added code tags
sorry about that lol
You dont have startActivity in your launcher button
Can you please give me a code example fairly new to this
Sent from my Nexus 4 using xda app-developers app
Well, if you just want a activity list and launches when clicked, you can simply create a LauncherActivity.
Can you please show me using my code example where I would place that at? Thank you so much
Rapsong11
Sent from my Nexus 4 using xda app-developers app
rapsong11 said:
Can you please show me using my code example where I would place that at? Thank you so much
Rapsong11
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
1. create new class MyLauncherActivity
2. override the method "getTargetIntent()" in LauncherActivity
Code:
...
import android.app.LauncherActivity;
public class MyLauncherActivity extends LauncherActivity {
 [user=439709]@override[/user]
protected Intent getTargetIntent () {
// just a example, you should replace the method yourself
Intent intent = new Intent();
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
return intent;
}
}
3. replace the code inside your onClick method to the R.id.all_apps button :
Code:
Intent intent = new Intent(this, MyLauncherActivity.class);
startActivity(intent);
4. don't forget to declare MyLauncherActivity in your AndroidMenifest.xml
5. try to do it yourself with others' experience, but not just ask for the code, that's not good for a coder. Wish you can understand this.

Need some help with preference manager please.

Alright guys, first app here. I hit a bump in the road, can someone tell me how to use preference manager to save and restore my switch states?
A snippet of my code,
Code:
public class MainActivity extends Activity implements View.OnClickListener {
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
PreferenceManager.getDefaultSharedPreferences(this).getBoolean("sw1",false);
}
public void onClick(View v) {}
public void sw1(View view) {
// Is the view now checked?
boolean checked = ((Switch) view).isChecked();
// Check which checkbox was clicked
switch(view.getId()) {
case R.id.sw1:
if (checked) try {
//Toast.makeText(this, "SW1 Checked", Toast.LENGTH_SHORT).show();
Runtime.getRuntime().exec(new String[] { "su","-c","mod1" });
PreferenceManager .getDefaultSharedPreferences(this).edit().putBoolean("sw1",true).commit();
} catch (IOException e) {
e.printStackTrace();
}
else try {
//Toast.makeText(this, "SW1 NOT Checked", Toast.LENGTH_SHORT).show();
Runtime.getRuntime().exec(new String[] { "su","-c","mod1b" });
PreferenceManager .getDefaultSharedPreferences(this).edit().putBoolean("sw1",false).commit();
} catch (IOException e) {
e.printStackTrace();
break;}
}
}
tmlhodge said:
Alright guys, first app here. I hit a bump in the road, can someone tell me how to use preference manager to save and restore my switch states?
Click to expand...
Click to collapse
Try this:
Code:
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
boolean checked = PreferenceManager.getDefaultSharedPreferences(this).getBoolean("sw1",false);
Switch mSwitch = (Switch )findViewById(R.id.sw1);
mSwitch.setChecked(checked);
}
I'm not sure where you setup your click/check listeners.. If you could provide some more details, that would be great.
Hope this helps!
alobo said:
Try this:
Code:
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
boolean checked = PreferenceManager.getDefaultSharedPreferences(this).getBoolean("sw1",false);
Switch mSwitch = (Switch )findViewById(R.id.sw1);
mSwitch.setChecked(checked);
}
I'm not sure where you setup your click/check listeners.. If you could provide some more details, that would be great.
Hope this helps!
Click to expand...
Click to collapse
Alright, the on click listener is right before the list of buttons, you can actually see it in the code in the OP.
Also I am starting to get excited because that actually made my switch turn on! But now it's just on every time I turn it off and exit app..
Sent from my HTC One using Tapatalk HD
That got me on the right track and I figured the rest out! Thank you very much good sir/mam @alobo

multiple buttons to send predefined SMS

Hi guys i am new to programming. I am trying to have multiple button to send different predefined SMS to predefined number. I am not sure how to have multiple setOnClickListener(new OnClickListener() as the 2nd setOnClickListener(new OnClickListener() gave me error.
public class SendSMSActivity extends Activity {
Button buttonSend;
Button buttonSend2;
@override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
buttonSend = (Button) findViewById(R.id.buttonSend);
buttonSend2 = (Button) findViewById(R.id.buttonSend2);
buttonSend.setOnClickListener(new OnClickListener() {
buttonSend2.setOnClickListener(new OnClickListener() {
@override
public void onClick(View v) {
switch (v.getId()) {
case R.id.buttonSend:
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("sms_body", "abc");
sendIntent.putExtra("address", "9909990");
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);
break;
case R.id.buttonSend2:
Intent sendIntent1 = new Intent(Intent.ACTION_VIEW);
sendIntent1.putExtra("sms_body", "def");
sendIntent1.putExtra("address", "012345678");
sendIntent1.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent1);
break;
}
}
});
});
}
}
@stewypost
You cant write statements anywhere inside an anonymous inner class anyways ignoring the poor syntax
To do this first declare your
OnClickListner listner = (View v) ->
{
// your code
};
then call
button1.setOnClickListener(listner);
button2.setOnClickListener(listner);
Sent from my GT-S5302 using Tapatalk 2

[Guide] Listeners in Java development

You are new to java development and want to get buttons working?
Maybe you are a Pro but want a reminder?
whatever you are this Guide is to help you to make buttons/check boxes...etc working and functional
Some people are distracted between guides over internet and want the easiest way to get their project working, me too
Steps :
1-Define the button :
Code:
Button btn1;
Checkbox chkbox1;
RadioButton radio1;
2- Intialize it :
Code:
btn1 = (Button) findViewById(R.id.btn1);
chkbox1= (Checkbox ) findViewById(R.id.chkbox1);
radio1= (RadioButton) findViewById(R.id.radio1);
3-Add the listener :
Button:
Code:
btn1.setOnClickListener(new OnClickListener() {
@SuppressWarnings("deprecation")
@Override
public void onClick(View arg0) {
//Write awesome code here
}
});
CheckBox :
Code:
chkbox1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (start.isChecked()) {
//if the checkbox checked
} else {
//if not checked
}
}
});
}
radio button:
Code:
public void onRadioButtonClicked(View view) {
boolean checked = ((RadioButton) view).isChecked();
switch(view.getId()) {
case R.id.radio1:
if (checked){
}
else{
}
break;
}
}
or use it in a radio Group :
Code:
public void onRadioButtonClicked(View view) {
// Is the button now checked?
boolean checked = ((RadioButton) view).isChecked();
// Check which radio button was clicked
switch(view.getId()) {
case R.id.radio1:
if (checked)
//Write code
break;
case R.id.radio2:
if (checked)
//Write code
break;
}
}
Also insted of this you can use a onCheckedChanged for a radio button (Thanks for GalaxyInABox)
Code:
@Override
public void onCheckedChanged(RadioGroup radioGroup, int i) {
switch (radioGroup.getCheckedRadioButtonId()) {
//Code
}
}
____________________________________________________________________
____________________________________________________________________
Also you can implement a Onclicklistener for the whole class to save resources : (thanks for @Jonny )
after defining and initializing your objects add this :
Code:
OnClickListener click_listener = new OnClickListener() {
public void onClick(View view) {
int id = view.getId();
if (id == your_id) {
//do stuff for this object
} else if (id == your_id2) {
//do other stuff for diffrent object
} else if (id == your_id3) {
//and so on
}
}
};
To do list :
-add on touch listeners
-add on drag listeners
Note : you can add a click listener to almost any thing (Textview or imageView or even EditText) just using the same method of adding listener to button
also there is some other ways to add a listener but this is the fastest and less disturbing :good:
If this guide is useful, press thanks
@ OP
CheckBox and RadioButtons don't they provide a CheckedChangeListener ?
Sent from my GT-S5302 using Tapatalk 2
sak-venom1997 said:
@ OP
CheckBox and RadioButtons don't they provide a CheckedChangeListener ?
Click to expand...
Click to collapse
Yes, and now you can use
Code:
@Override
public void onCheckedChanged(RadioGroup radioGroup, int i) {
switch (radioGroup.getCheckedRadioButtonId()) {
//Code
}
}
to get the checked button. They are pretty much the same, but you can use view.getTag() easier in the first one.
And @mohamedrashad please show how to put the listener into a inner class. Many people don't know/use it, but it's that useful!
GalaxyInABox said:
Yes, and now you can use
Code:
@Override
public void onCheckedChanged(RadioGroup radioGroup, int i) {
switch (radioGroup.getCheckedRadioButtonId()) {
//Code
}
}
to get the checked button. They are pretty much the same, but you can use view.getTag() easier in the first one.
Click to expand...
Click to collapse
I meant that the op shuld edit this guide and use those instead of OnCickListeners
GalaxyInABox said:
And @mohamedrashad please show how to put the listener into a inner class. Many people don't know/use it, but it's that useful!
Click to expand...
Click to collapse
ya new with java8 it will be a nice usage scenario of lambadas
Sent from my GT-S5302 using Tapatalk 2
GalaxyInABox said:
Yes, and now you can use
Code:
@Override
public void onCheckedChanged(RadioGroup radioGroup, int i) {
switch (radioGroup.getCheckedRadioButtonId()) {
//Code
}
}
to get the checked button. They are pretty much the same, but you can use view.getTag() easier in the first one.
And @mohamedrashad please show how to put the listener into a inner class. Many people don't know/use it, but it's that useful!
Click to expand...
Click to collapse
sak-venom1997 said:
@ OP
CheckBox and RadioButtons don't they provide a CheckedChangeListener ?
Sent from my GT-S5302 using Tapatalk 2
Click to expand...
Click to collapse
ok, i will add this
You can also add onClick property in XML and then handle it in a code.
Awesome tutorial! Thank you very much!
Please, you could share more related knowledge. It's really useful!
Also, an activity can be a listener. In this case:
MyActivity implements onClickListener {
btn1.setOnClickListener(this);
public void onClick (View v) {
//your code
}
}
For this kind of stuff, using some well known libraries from well known Android dev is a must.
https://github.com/JakeWharton/butterknife
Very powerfull, super easy to use, error prone and without any performance impact.
rafalniski said:
You can also add onClick property in XML and then handle it in a code.
Click to expand...
Click to collapse
SKAm69 said:
Also, an activity can be a listener. In this case:
MyActivity implements onClickListener {
btn1.setOnClickListener(this);
public void onClick (View v) {
//your code
}
}
Click to expand...
Click to collapse
will add them both, although I don't like this way
Mohamedrashad. Thanks a lot.
Sent from my P880 using Tapatalk
If you have multiple clickable objects then it's best to use just 1 onClickListener for all of them and use a switch on their ID's. This reduces resource usage as you only have 1 listener, not 5, 10 or however many you would have otherwise. It's not essential for this but it is a best practice if you want to streamline your code.
Mobile right now so I can't chuck up an example until tomorrow evening or so.
You dude had a great thread. Its helping me. Bravoo !!
Sent from my GT-I8190 using XDA Premium 4 mobile app
As @Jonny already pointed out: Use your class as a listener instead of creating a new (anonymous) inner class! Say you have a ListView, instead of doing this:
Code:
class MyFragment extends Fragment {
private void someMethod() {
((ListView) getView().findViewById(R.id.someListView)).setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//Code...
}
});
}
}
you can do this:
Code:
class MyFragment extends ListFragment implements AdapterView.OnItemClickListener, View.OnClickListener {
private void someMethod() {
((ListView) getView().findViewById(R.id.someListView)).setOnItemClickListener(this);
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//Code...
}
}
This may look stupid, but when you have many listeners, you can un-clutter it. In my opinion this is the best way. You can also add "this" class as listener for as many ui elements as you want(because all of them extend view, you can use one OnClickListener), then you only need to have a switch statement to distinguish between the views. And voila, you prevented cluttering the code with boilerplate stuff.
Example using code in an app I'm making - app for my school.
Code:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Some code here for view/layouts etc
websitebutton = (Button) view.findViewById(R.id.website_btn);
facebookbutton = (Button) view.findViewById(R.id.facebook_btn);
twitterbutton = (Button) view.findViewById(R.id.twitter_btn);
websitebutton.setOnClickListener(handler);
facebookbutton.setOnClickListener(handler);
twitterbutton.setOnClickListener(handler);
return view;
}
OnClickListener handler = new OnClickListener() {
public void onClick(View view) {
switch (view.getId()) {
case R.id.website_btn :
Uri website = Uri.parse("http://wirralgrammarboys.com/");
Intent websiteintent = new Intent(Intent.ACTION_VIEW, website);
startActivity(websiteintent);
break;
case R.id.facebook_btn :
Uri facebook = Uri.parse("https://www.facebook.com/WirralGSB");
Intent facebookintent = new Intent(Intent.ACTION_VIEW, facebook);
startActivity(facebookintent);
break;
case R.id.twitter_btn :
Uri twitter = Uri.parse("https://twitter.com/WGSB");
Intent twitterintent = new Intent(Intent.ACTION_VIEW, twitter);
startActivity(twitterintent);
break;
}
}
};
Jonny said:
Example using code in an app I'm making.
Code:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Some code here for view/layouts etc
websitebutton = (Button) view.findViewById(R.id.website_btn);
facebookbutton = (Button) view.findViewById(R.id.facebook_btn);
twitterbutton = (Button) view.findViewById(R.id.twitter_btn);
websitebutton.setOnClickListener(handler);
facebookbutton.setOnClickListener(handler);
twitterbutton.setOnClickListener(handler);
return view;
}
OnClickListener handler = new OnClickListener() {
public void onClick(View view) {
int id = view.getId();
if (id == R.id.website_btn) {
Uri website = Uri.parse("http://wirralgrammarboys.com/");
Intent websiteintent = new Intent(Intent.ACTION_VIEW, website);
startActivity(websiteintent);
} else if (id == R.id.facebook_btn) {
Uri facebook = Uri.parse("https://www.facebook.com/WirralGSB");
Intent facebookintent = new Intent(Intent.ACTION_VIEW, facebook);
startActivity(facebookintent);
} else if (id == R.id.twitter_btn) {
Uri twitter = Uri.parse("https://twitter.com/WGSB");
Intent twitterintent = new Intent(Intent.ACTION_VIEW, twitter);
startActivity(twitterintent);
}
}
};
Click to expand...
Click to collapse
i'm adding this to OP if you don't mind jonny
mohamedrashad said:
i'm adding this to OP if you don't mind jonny
Click to expand...
Click to collapse
That's fine - if I didn't want people to use/adapt/learn from the code then I wouldn't put it up, use it as you want :good:
Sent from my HTC One using Tapatalk
Keep it up
Great tutorials, keep em coming!
Hey what about starting a new activity with onClickListiner
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---------- Post added at 03:57 PM ---------- Previous post was at 03:49 PM ----------
Hey and do u mind sending a source codes.zip file
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Rebound.co said:
Hey what about starting a new activity with onClickListiner
Sent from my M3S_D7 using XDA Free mobile app
---------- Post added at 03:57 PM ---------- Previous post was at 03:49 PM ----------
Hey and do u mind sending a source codes.zip file
Sent from my M3S_D7 using XDA Free mobile app
Click to expand...
Click to collapse
in the onClick method just have this code:
Code:
startActivity(new Intent(this, YourActivity.class));

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