Android 平鋪背景圖片

來源:互聯網
上載者:User

Android的圖片平鋪效果,主要有三種方法:1)系統API; 2)XML配置; 3)自訂繪製

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: 自訂繪製

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;}

參考推薦:

Android activity 平鋪背景圖片

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