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android实现背景平铺的三种方法
来源: 互联网 发布时间:2014-10-23
本文导语: 方法1: 系统api实现 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 );...
方法1: 系统api实现
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
代码如下:
方法3: 自定义绘制
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;
}