Android 平铺背景图片
Android的图片平铺效果,主要有三种方法:1)系统API; 2)XML配置; 3)自定义绘制
方法1: 系统api实现
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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
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<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
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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;
}
补充:移动开发 , Android ,