Para nunca mais esquecer [3] - Android

• Como redimensionar um Bitmap?

public Bitmap getBitmap(int width, int height) { Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.imagem); return Bitmap.createScaledBitmap(bitmap, width, height, false); }

• Como colocar bordas arredondadas em um Bitmap?

public Bitmap getRoundedCorner(Bitmap b, float roundPX) { int width = b.getWidth(); int height = b.getHeight(); Bitmap output = Bitmap.createBitmap(width, height, Config.ARG_8888); Canvas canvas = new Canvas(output); Rect rect = new Rect(0, 0, width, height); RectF rectF = new RectF(rect); Paint paint = new Paint(); paint.setAntiAlias(true); canvas.drawRoundRect(rectF, roundPX, roundPX, paint); PorterDuffXfermode mode = new PorterDuffXfermode(Mode.SRC_IN); paint.setXfermode(mode); canvas.drawBitmap(b, rect, rect, paint); return output; }

• Como abrir o Chooser das Redes Sociais para Compartilhamento?

public void share(String subject, String text) { Intent it = new Intent(Intent.ACTION_SEND); it.setType("text/plain"); it.putExtra(Intent.EXTRA_SUBJECT, subject); it.putExtra(Intent.EXTRA_TEXT, text); startActivity(Intent.createChooser(it, "Compartilhe")); }

• Como repetir um Bitmap em um background de layout?

<bitmap xmlns="http://schemas.android.com/apk/res/android" android:src="@drawable/imagem" android:tileMode="repeat" />