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Programmatically forward/stop forward calls in android device

Tuesday, April 30th, 2013 at 9:28 am

<strong>Forward calls</strong>
Intent callIntent = new Intent(Intent.ACTION_CALL);
String forwardNumber = "9999999999"
String number = ("**21*"+forwardNumber+"#");
callIntent.setData(Uri.fromParts("tel", number, "#"));
callIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(callIntent);

<strong>Forward calls</strong>

Intent callIntent = new Intent(Intent.ACTION_CALL);

String forwardNumber = "9999999999"

String number = ("**21*"+forwardNumber+"#");

callIntent.setData(Uri.fromParts("tel", number, "#"));

callIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

startActivity(callIntent);

Stop forwarding
Intent callIntent = new Intent(Intent.ACTION_CALL);
String number = "##21#";
callIntent.setData(Uri.fromParts("tel", number, "#"));
callIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(callIntent);

Stop forwarding

Intent callIntent = new Intent(Intent.ACTION_CALL);

String number = "##21#";

callIntent.setData(Uri.fromParts("tel", number, "#"));

callIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

startActivity(callIntent);

Android Notification

Monday, April 22nd, 2013 at 9:09 am

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NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

    Intent notificationIntent = new Intent(this, "Your linked class");

    PendingIntent pi = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_ONE_SHOT);

    Notification note =  new Notification(R.drawable.ic_launcher, "Notification Title", System.currentTimeMillis());

    note.setLatestEventInfo(this, "Title", "Description", pi);

    note.defaults |= Notification.DEFAULT_ALL;

    note.flags |= Notification.FLAG_AUTO_CANCEL;

    int id = Integer.parseInt(intent.getStringExtra("id"));

    manager.notify(id, note);

NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

Intent notificationIntent = new Intent(this, "Your linked class");

PendingIntent pi = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_ONE_SHOT);

Notification note = new Notification(R.drawable.ic_launcher, "Notification Title", System.currentTimeMillis());

note.setLatestEventInfo(this, "Title", "Description", pi);

note.defaults |= Notification.DEFAULT_ALL;

note.flags |= Notification.FLAG_AUTO_CANCEL;

int id = Integer.parseInt(intent.getStringExtra("id"));

manager.notify(id, note);

How to read SMS messages programmatically in Android ?

Thursday, March 28th, 2013 at 9:25 am

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Just create a receiver

public void onReceiver(Context context, Intent intent){
    Object[] pdus=(Object[])intent.getExtras().get("pdus");
    SmsMessage shortMessage=SmsMessage.createFromPdu((byte[]) pdus[0]);

    Log.d("SMSReceiver","SMS message sender: "+
       shortMessage.getOriginatingAddress());
    Log.d("SMSReceiver","SMS message text: "+
       shortMessage.getDisplayMessageBody());
}

More Details, refer - <a href="http://droidcoders.blogspot.in/2011/09/sms-receive.html" rel="nofollow">http://droidcoders.blogspot.in/2011/09/sms-receive.html</a>

Just create a receiver

public void onReceiver(Context context, Intent intent){

Object[] pdus=(Object[])intent.getExtras().get("pdus");

SmsMessage shortMessage=SmsMessage.createFromPdu((byte[]) pdus[0]);

Log.d("SMSReceiver","SMS message sender: "+

shortMessage.getOriginatingAddress());

Log.d("SMSReceiver","SMS message text: "+

shortMessage.getDisplayMessageBody());

}

More Details, refer - <a href="http://droidcoders.blogspot.in/2011/09/sms-receive.html" rel="nofollow">http://droidcoders.blogspot.in/2011/09/sms-receive.html</a>

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How to play video from Android Applciation Package/ RES Folder ?

Thursday, March 28th, 2013 at 9:22 am

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Copy the video into the project's res/raw folder. Create raw folder under res folder. It must be in a supported format (3gp, wmv, mp4 ) and named with lower case, numerics, underscores and dots in its filename likewise: video_file.mp4.

VideoView view = (VideoView)findViewById(R.id.videoView);
String path = "android.resource://" + getPackageName() + "/" + R.raw.video_file;
view.setVideoURI(Uri.parse(path));
view.start();

Create videoView in your xml file.

Copy the video into the project's res/raw folder. Create raw folder under res folder. It must be in a supported format (3gp, wmv, mp4 ) and named with lower case, numerics, underscores and dots in its filename likewise: video_file.mp4.

VideoView view = (VideoView)findViewById(R.id.videoView);

String path = "android.resource://" + getPackageName() + "/" + R.raw.video_file;

view.setVideoURI(Uri.parse(path));

view.start();

Create videoView in your xml file.

How to pass data/information from one class to another ?

Thursday, March 28th, 2013 at 9:17 am

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When you make a Transition put extra data to Intent.

Intent intent = new Intent(this, bookLookup.class);
intent.putExtra("myId", 100);
startActivity(v);

Intent intent = new Intent(this, bookLookup.class);

intent.putExtra("myId", 100);

startActivity(v);

In the new activity you can retrieve this extra value

Bundle extras = getIntent().getExtras();
int id = extras.getInt("myId", -1); // where -1 is the default value, if no value is passed from the previous class...

1 2	Bundle extras = getIntent().getExtras(); int id = extras.getInt("myId", -1); // where -1 is the default value, if no value is passed from the previous class...

How to check if a service is running, Android?

Thursday, March 28th, 2013 at 9:12 am

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private boolean isMyServiceRunning() {
    ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
    for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
        if (MyService.class.getName().equals(service.service.getClassName())) {
            return true;
        }
    }
    return false;
}

This works reliably because it is based on the information about running services provided by the Android operating system through <a href="http://developer.android.com/reference/android/app/ActivityManager.html#getRunningServices%28int%29">ActivityManager#getRunningServices</a>.

private boolean isMyServiceRunning() {

ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);

for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {

if (MyService.class.getName().equals(service.service.getClassName())) {

return true;

}

return false;

}

This works reliably because it is based on the information about running services provided by the Android operating system through <a href="http://developer.android.com/reference/android/app/ActivityManager.html#getRunningServices%28int%29">ActivityManager#getRunningServices</a>.

what is the meaning of @id and @+id in Android?

Wednesday, March 27th, 2013 at 5:34 am

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If we use android:id=”@id/layout_item_id” it doesn’t work. Instead we have to use @+id/

Well, it depends on the context, when you’re using the XML attribute of android:id, then you’re specifying a new id, and are instructing the parser (or call it the builder) to create a new entry in R.java, thus you have to include a + sign.

While in the other case, like android:layout_below="@id/myTextView", you’re referring to an id that has already been created, so parser links this to the already created id in R.java

Incoming search terms:

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Android Play Music From Assets Folder

Wednesday, March 27th, 2013 at 5:23 am

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public void playBeep() {
    try {

        if (m.isPlaying()) {
            m.stop();
            m.release();
            m = new MediaPlayer();
        }
        AssetFileDescriptor descriptor = getAssets().openFd("beepbeep.mp3");
        m.setDataSource(descriptor.getFileDescriptor(), descriptor.getStartOffset(), descriptor.getLength());
        descriptor.close();

        m.prepare();
        m.setVolume(1f, 1f);
        m.setLooping(true);
        m.start();
    } catch (Exception e) {
    }
}

public void playBeep() {

try {

if (m.isPlaying()) {

m.stop();

m.release();

m = new MediaPlayer();

}

AssetFileDescriptor descriptor = getAssets().openFd("beepbeep.mp3");

m.setDataSource(descriptor.getFileDescriptor(), descriptor.getStartOffset(), descriptor.getLength());

descriptor.close();

m.prepare();

m.setVolume(1f, 1f);

m.setLooping(true);

m.start();

} catch (Exception e) {

}

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How to limit Android EditText Length

Wednesday, March 27th, 2013 at 5:18 am

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It can be done in a couple of ways
Add this to the layout XML file :

android:maxLength="10"

1	android:maxLength="10"

EditText et; // Link to some EditText

InputFilter[] FilterArray = new InputFilter[1];
FilterArray[0] = new InputFilter.LengthFilter(maxLength);
et.setFilters(FilterArray);

EditText et; // Link to some EditText

InputFilter[] FilterArray = new InputFilter[1];

FilterArray[0] = new InputFilter.LengthFilter(maxLength);

et.setFilters(FilterArray);

Or in single line

et.setFilters(new InputFilter[] {new PasswordCharFilter(), new InputFilter.LengthFilter(20)});

1	et.setFilters(new InputFilter[] {new PasswordCharFilter(), new InputFilter.LengthFilter(20)});

Difference of px, dp, dip and sp in Android?

Wednesday, February 27th, 2013 at 4:30 am

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px is one pixel. scale-independent pixels ( sp ) and density-independent pixels ( dip ) you want to use sp for font sizes and dip for everything else.

<code>dip==dp</code>

1	<code>dip==dp</code>

px
Pixels – corresponds to actual pixels on the screen.

in
Inches – based on the physical size of the screen.

mm
Millimeters – based on the physical size of the screen.

pt
Points – 1/72 of an inch based on the physical size of the screen.

dp
Density-independent Pixels – an abstract unit that is based on the physical density of the screen. These units are relative to a 160 dpi screen, so one dp is one pixel on a 160 dpi screen. The ratio of dp-to-pixel will change with the screen density, but not necessarily in direct proportion. Note: The compiler accepts both “dip” and “dp”, though “dp” is more consistent with “sp”.

sp
Scale-independent Pixels – this is like the dp unit, but it is also scaled by the user’s font size preference. It is recommend you use this unit when specifying font sizes, so they will be adjusted for both the screen density and user’s preference.

For more info - http://developer.android.com/guide/topics/resources/more-resources.html#Dimension

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Archive for 'Android'

Programmatically forward/stop forward calls in android device

Android Notification

How to read SMS messages programmatically in Android ?

Incoming search terms:

How to play video from Android Applciation Package/ RES Folder ?

How to pass data/information from one class to another ?

How to check if a service is running, Android?

what is the meaning of @id and @+id in Android?

Incoming search terms:

Android Play Music From Assets Folder

Incoming search terms:

How to limit Android EditText Length

Difference of px, dp, dip and sp in Android?

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