Android的圖片平鋪效果,主要有三種方法:1)系統API; 2)XML配置; 3)自定義繪制
方法1: 系統api實現
- Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pic);
- //bitmap = Bitmap.createBitmap(100, 20, Config.ARGB_8888);
- BitmapDrawable drawable = new BitmapDrawable(bitmap);
- drawable.setTileModeXY(TileMode.REPEAT , TileMode.REPEAT );
- drawable.setDither(true);
- view.setBackgroundDrawable(drawable);
方法2: XML實現
xml路徑:res/drawable/bg.xml
- <bitmap xmlns:android="http://schemas.android.com/apk/res/android"
- android:src="@drawable/img"
- android:tileMode="repeat" />
方法3: 自定義繪制
- 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;
- }