创建重复的背景图片
在drawable目录下创建一个repeat_bg.xml:
然后在布局的xml文件中可以这样引用:
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tileMode 属性就是用于定义背景的显示模式：
disabled
默认值，表示不使用平铺
clamp
复制边缘色彩
repeat
X、Y 轴进行重复图片显示，也就是我们说要说的平铺
mirror
在水平和垂直方向上使用交替镜像的方式重复图片的绘制
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图片平铺的三种方式：
1)第一种利用系统提供的api实现
1 Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pic); 2 //bitmap = Bitmap.createBitmap(100, 20, Config.ARGB_8888); 3 BitmapDrawable drawable = new BitmapDrawable(bitmap); 4 drawable.setTileModeXY(TileMode.REPEAT , TileMode.REPEAT ); 5 drawable.setDither(true); 6 view.setBackgroundDrawable(drawable); 7 Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pic); 8 //bitmap = Bitmap.createBitmap(100, 20, Config.ARGB_8888); 9 BitmapDrawable drawable = new BitmapDrawable(bitmap); 10 drawable.setTileModeXY(TileMode.REPEAT , TileMode.REPEAT ); 11 drawable.setDither(true); 12 view.setBackgroundDrawable(drawable);
2)第二种我们使用xml来轻松实现
< bitmap xmlns:android="http://schemas.android.com/apk/res/android" android:src="@drawable/img"
android:tileMode="repeat" />
3)第三种自己画出来
1 < span style="white-space: normal;">< span style="white-space: pre;">public static Bitmap createRepeater(int width, Bitmap src){< /span>< /span> 2 int count = (width + src.getWidth() - 1) / src.getWidth(); 3 Bitmap bitmap = Bitmap.createBitmap(width, src.getHeight(), Config.ARGB_8888); 4 Canvas canvas = new Canvas(bitmap); 5 for(int idx = 0; idx < count; ++ idx){ 6 canvas.drawBitmap(src, idx * src.getWidth(), 0, null); 7 } 8 return bitmap; 9 } 10 public static Bitmap createRepeater(int width, Bitmap src){ 11 int count = (width + src.getWidth() - 1) / src.getWidth(); 12 Bitmap bitmap = Bitmap.createBitmap(width, src.getHeight(), Config.ARGB_8888); 13 Canvas canvas = new Canvas(bitmap); 14 for(int idx = 0; idx < count; ++ idx){ 15 canvas.drawBitmap(src, idx * src.getWidth(), 0, null); 16 } 17 return bitmap;
转自：http://blog.sina.com.cn/s/blog_769500f00101czfs.html