Intents of Android

Here is some example of using Built in Intents of Android

//show webapp:

Uri uri = Uri.parse("http://www.google.com");

Intent it = new Intent(Intent.ACTION_VIEW,uri);

startActivity(it);

//show maps:

Uri uri = Uri.parse("geo:38.899533,-77.036476");

Intent it = new Intent(Intent.Action_VIEW,uri);

startActivity(it);

//show ways

Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");

Intent it = new Intent(Intent.ACTION_VIEW,URI);

startActivity(it);

//call dial program

Uri uri = Uri.parse("tel:xxxxxx");

Intent it = new Intent(Intent.ACTION_DIAL, uri);

startActivity(it);

Uri uri = Uri.parse("tel.xxxxxx");

Intent it =new Intent(Intent.ACTION_CALL,uri);

//don't forget add this config:

//send sms/mms

//call sender program

Intent it = new Intent(Intent.ACTION_VIEW);

it.putExtra("sms_body", "The SMS text");

it.setType("vnd.android-dir/mms-sms");

startActivity(it);

//send sms

Uri uri = Uri.parse("smsto:0800000123");

Intent it = new Intent(Intent.ACTION_SENDTO, uri);

it.putExtra("sms_body", "The SMS text");

startActivity(it);

//send mms

Uri uri = Uri.parse("content://media/external/images/media/23");

Intent it = new Intent(Intent.ACTION_SEND);

it.putExtra("sms_body", "some text");

it.putExtra(Intent.EXTRA_STREAM, uri);

it.setType("image/png");

startActivity(it);

//send email

Uri uri = Uri.parse("mailto:xxx@abc.com");

Intent it = new Intent(Intent.ACTION_SENDTO, uri);

startActivity(it);

Intent it = new Intent(Intent.ACTION_SEND);

it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com");

it.putExtra(Intent.EXTRA_TEXT, "The email body text");

it.setType("text/plain");

startActivity(Intent.createChooser(it, "Choose Email Client"));

Intent it=new Intent(Intent.ACTION_SEND);

String[] tos={"me@abc.com"};

String[] ccs={"you@abc.com"};

it.putExtra(Intent.EXTRA_EMAIL, tos);

it.putExtra(Intent.EXTRA_CC, ccs);

it.putExtra(Intent.EXTRA_TEXT, "The email body text");

it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");

it.setType("message/rfc822");

startActivity(Intent.createChooser(it, "Choose Email Client"));

//add extra

Intent it = new Intent(Intent.ACTION_SEND);

it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");

it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");

sendIntent.setType("audio/mp3");

startActivity(Intent.createChooser(it, "Choose Email Client"));

//play media

Intent it = new Intent(Intent.ACTION_VIEW);

Uri uri = Uri.parse("file:///sdcard/song.mp3");

it.setDataAndType(uri, "audio/mp3");

startActivity(it);

Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");

Intent it = new Intent(Intent.ACTION_VIEW, uri);

startActivity(it);

//Uninstall

Uri uri = Uri.fromParts("package", strPackageName, null);

Intent it = new Intent(Intent.ACTION_DELETE, uri);

startActivity(it);

//uninstall apk

Uri uninstallUri = Uri.fromParts("package", "xxx", null);

returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);

//install apk

Uri installUri = Uri.fromParts("package", "xxx", null);

returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);

//play audio

Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");

returnIt = new Intent(Intent.ACTION_VIEW, playUri);

//send extra

Intent it = new Intent(Intent.ACTION_SEND);

it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");

it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3");

sendIntent.setType("audio/mp3");

startActivity(Intent.createChooser(it, "Choose Email Client"));

//search

Uri uri = Uri.parse("market://search?q=pname:pkg_name");

Intent it = new Intent(Intent.ACTION_VIEW, uri);

startActivity(it);

//where pkg_name is the full package path for an application

//show program detail page

Uri uri = Uri.parse("market://details?id=app_id");

Intent it = new Intent(Intent.ACTION_VIEW, uri);

startActivity(it);

//where app_id is the application ID, find the ID

//by clicking on your application on Market home

//page, and notice the ID from the address bar

//search google

Intent intent = new Intent();

intent.setAction(Intent.ACTION_WEB_SEARCH);

intent.putExtra(SearchManager.QUERY,"searchString")

startActivity(intent);

Convert Image to Black and White

Convert Image to Black and White with this simple method

public Bitmap ConvertToBlackAndWhite(Bitmap sampleBitmap){
ColorMatrix bwMatrix =new ColorMatrix();
bwMatrix.setSaturation(0);
final ColorMatrixColorFilter colorFilter= new ColorMatrixColorFilter(bwMatrix);
Bitmap rBitmap = sampleBitmap.copy(Bitmap.Config.ARGB_8888, true);
Paint paint=new Paint();
paint.setColorFilter(colorFilter);
Canvas myCanvas =new Canvas(rBitmap);
myCanvas.drawBitmap(rBitmap, 0, 0, paint);
return rBitmap;
}

Convert Image to Negative in Android

Convert Image to Negative with this method

public Bitmap ConvertToNegative(Bitmap sampleBitmap){
ColorMatrix negativeMatrix =new ColorMatrix();
float[] negMat={-1, 0, 0, 0, 255, 0, -1, 0, 0, 255, 0, 0, -1, 0, 255, 0, 0, 0, 1, 0 };
negativeMatrix.set(negMat);
final ColorMatrixColorFilter colorFilter= new ColorMatrixColorFilter(negativeMatrix);
Bitmap rBitmap = sampleBitmap.copy(Bitmap.Config.ARGB_8888, true);
Paint paint=new Paint();
paint.setColorFilter(colorFilter);
Canvas myCanvas =new Canvas(rBitmap);
myCanvas.drawBitmap(rBitmap, 0, 0, paint);
return rBitmap;
}

Convert Image to Sepia in Android

You can easily convert your images to Sepia format using this method in Android

public Bitmap ConvertToSepia(Bitmap sampleBitmap){
ColorMatrix sepiaMatrix =new ColorMatrix();
float[] sepMat={0.3930000066757202f, 0.7689999938011169f, 0.1889999955892563f, 0, 0, 0.3490000069141388f, 0.6859999895095825f, 0.1679999977350235f, 0, 0, 0.2720000147819519f, 0.5339999794960022f, 0.1309999972581863f, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1};
sepiaMatrix.set(sepMat);
final ColorMatrixColorFilter colorFilter= new ColorMatrixColorFilter(sepiaMatrix);
Bitmap rBitmap = sampleBitmap.copy(Bitmap.Config.ARGB_8888, true);
Paint paint=new Paint();
paint.setColorFilter(colorFilter);
Canvas myCanvas =new Canvas(rBitmap);
myCanvas.drawBitmap(rBitmap, 0, 0, paint);
return rBitmap;
}