Android: 用Instrumentation类发送鼠标或按键事件

new Thread () {
					public void run () {
						try {
			 		         Instrumentation inst=new Instrumentation();
			 		         inst.sendPointerSync(MotionEvent.obtain(SystemClock.uptimeMillis(),
			 		        		 SystemClock.uptimeMillis(), 
			 		        		 MotionEvent.ACTION_DOWN, 240, 400, 0));
			 		         inst.sendPointerSync(MotionEvent.obtain(SystemClock.uptimeMillis(),
			 		        		 SystemClock.uptimeMillis(), 
			 		        		 MotionEvent.ACTION_UP, 240, 400, 0)); 	
						} catch(Exception e) {
							Log.e("Exception when sendPointerSync", e.toString());
						}
					}
				}.start();