方法1： 系统api实现

复制代码 代码如下:

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实现

xml路径：res/drawable/bg.xml

复制代码 代码如下:

<bitmap xmlns:android="http://schemas.android.com/apk/res/android"

android:src="@drawable/img"

android:tileMode="repeat" />

方法3： 自定义绘制

复制代码 代码如下:

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;

}