需要实现平铺效果,大致有几下几种方法。
***种,利用系统提供的api实现:
- Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pic);
- //bitmap = Bitmap.createBitmap(200, 30, Config.ARGB_8888);
- BitmapDrawable drawable = new BitmapDrawable(bitmap);
- drawable.setTileModeXY(TileMode.REPEAT , TileMode.REPEAT );
- drawable.setDither(true);
- view.setBackgroundDrawable(drawable);
第二种,使用xml来轻松实现,貌似是4.0以后出现的:
- <bitmap xmlns:Android="http://schemas.android.com/apk/res/android"
- android:src="../../@drawable/img"
- Android:tileMode="repeat" />
第三种,自己画出来:
- public static Bitmap createRepeater(int width, Bitmap src){
- int count = (width + src.getWidth() - 1) / src.getWidth();
- Bitmap bitmap = Bitmap.createBitmap(width, src.getHeight(), Config.ARGB_8888);
- Canvas canvas = new Canvas(bitmap);
- for(int idx = 0; idx < count; ++ idx){
- canvas.drawBitmap(src, idx * src.getWidth(), 0, null);
- }
- return bitmap;
- }