android 关于截屏

在android4.0以下用这个方法：

 

private void cutScreen()

	{

		View v = getLayoutInflater().inflate(R.layout.activity_main, null);

		//打开图像缓存

		v.setDrawingCacheEnabled(true);

		//v.buildDrawingCache();

		//测量view的大小

		v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, 

				MeasureSpec.UNSPECIFIED));

				

		//发送位置和尺寸到View及其所有的子View

		/*View v = this.getWindow().getDecorView();

		v.setDrawingCacheEnabled(true);

		v.buildDrawingCache();*/

	

		v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());

		LogHelper.LogV("" + v.getMeasuredWidth() + " " + v.getMeasuredHeight());

		

		try {

			Bitmap bitmap = v.getDrawingCache();

			FileOutputStream fos = new FileOutputStream("/sdcard/test.png");

			bitmap.compress(CompressFormat.PNG, 100, fos);

			fos.close();

			LogHelper.LogE("截屏成功");

		} catch (Exception e) {

			// TODO Auto-generated catch block

			LogHelper.LogE("截屏失败 + " + e.getMessage());

			e.printStackTrace();

		}

	}

如果是android 4.0以上可以这样用：

 

 

private void cutScreen()

	{

	/*	View v = getLayoutInflater().inflate(R.layout.activity_main, null);

		//打开图像缓存

		v.setDrawingCacheEnabled(true);

		//v.buildDrawingCache();

		//测量view的大小

		v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, 

				MeasureSpec.UNSPECIFIED));*/

				

		//发送位置和尺寸到View及其所有的子View

		View v = this.getWindow().getDecorView();

		v.setDrawingCacheEnabled(true);

		v.buildDrawingCache();

	

		v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());

		LogHelper.LogV("" + v.getMeasuredWidth() + " " + v.getMeasuredHeight());

		

		try {

			Bitmap bitmap = v.getDrawingCache();

			FileOutputStream fos = new FileOutputStream("/sdcard/test.png");

			bitmap.compress(CompressFormat.PNG, 100, fos);

			fos.close();

			LogHelper.LogE("截屏成功");

		} catch (Exception e) {

			// TODO Auto-generated catch block

			LogHelper.LogE("截屏失败 + " + e.getMessage());

			e.printStackTrace();

		}

	}