向系统注入两点触摸事件

之前遇到的问题：向系统发送一个长按触摸事件，再发送其他触摸事件时之前的长按事件消失。不多说，直接上代码，用到了测试类Instrumentation，可在上层直接执行，但仅限于当前程序！

package com.zfibs.touch;

import android.app.Instrumentation;
import android.os.SystemClock;
import android.util.Log;
import android.view.MotionEvent;
import android.view.MotionEvent.PointerCoords;
import android.view.MotionEvent.PointerProperties;

public class Test {
	//向系统注入两点触摸事件
	private String TAG = "__Test__";

	PointerProperties[] properties = new PointerProperties[2];
	PointerProperties pp1 = new PointerProperties();
	PointerProperties pp2 = new PointerProperties();
	PointerCoords[] pointerCoords = new PointerCoords[2];

	Test() {
	}

	public void handleTouch(String args[]) throws Exception {
		String[] mArgs = args;
		try {
			String opt = mArgs[0];
			if (opt.equals("onetouch")) {
				long downTime = SystemClock.uptimeMillis();
				long eventTime = SystemClock.uptimeMillis();
				float x = Float.valueOf(mArgs[1]);
				float y = Float.valueOf(mArgs[2]);
				int type = Integer.valueOf(mArgs[mArgs.length - 1]);
			    PointerProperties pp1 = new PointerProperties();
			    pp1.id = 0;
			    pp1.toolType = MotionEvent.TOOL_TYPE_FINGER;
			    properties[0] = pp1;
			    
				PointerCoords pc1 = new PointerCoords();
				pc1.x = x;
				pc1.y = y;
				pc1.pressure = 1;
				pc1.size = 1;
				pointerCoords[0] = pc1;
				
				Log.i(TAG, "__one PointTouch__" + x + "___" + y + "___");
				MotionEvent event = null;
				if(type == 0){
					event = MotionEvent.obtain(downTime, eventTime,
							MotionEvent.ACTION_DOWN, 1, properties, pointerCoords,
							0, 0, 1, 1, 0, 0, 0, 0);
				}else{
					event = MotionEvent.obtain(downTime, eventTime,
							MotionEvent.ACTION_UP, 1, properties, pointerCoords,
							0, 0, 1, 1, 0, 0, 0, 0);
				}
				sendPointerTest(event);
			} else if (opt.equals("twotouch")) {
				long downTime = SystemClock.uptimeMillis();
				long eventTime = SystemClock.uptimeMillis();
				float x = Float.valueOf(mArgs[1]);
				float y = Float.valueOf(mArgs[2]);
				int type = Integer.valueOf(mArgs[mArgs.length - 1]);
			    PointerProperties pp2 = new PointerProperties();
			    pp2.id = 1;
			    pp2.toolType = MotionEvent.TOOL_TYPE_FINGER;
			    properties[1] = pp2;
			    
				PointerCoords pc2 = new PointerCoords();
				pc2.x = x;
				pc2.y = y;
				pc2.pressure = 1;
				pc2.size = 1;
				pointerCoords[1] = pc2;
				
				Log.i(TAG, "__two PointTouch__" + x + "___" + y + "___");
				MotionEvent event = null;
				if (type == 0) {
					event = MotionEvent.obtain(downTime, eventTime,
							MotionEvent.ACTION_POINTER_2_DOWN, 2, properties,
							pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
				} else {
					event = MotionEvent.obtain(downTime, eventTime,
							MotionEvent.ACTION_POINTER_2_UP, 2, properties,
							pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
				}
				sendPointerTest(event);
			}
		} catch (RuntimeException e) {
			e.printStackTrace();
		}
	}

	public static void sendPointerTest(MotionEvent event) {
		try {
			Instrumentation inst = new Instrumentation();
			inst.sendPointerSync(event);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

如果要跨进程发送模拟事件，需调用：

	private static void sendPointerSync(MotionEvent event) {
		try {
			(IWindowManager.Stub.asInterface(ServiceManager
					.getService("window"))).injectPointerEvent(event, true);
		} catch (RemoteException e) {
			e.printStackTrace();
		}
	}

需在源码中编译生成jar包，root权限下降jar导入/system/framework/下，方可调用。

评论

1 楼 Evilover3 2012-12-24  

请问是在2.3及以上版本上才可以用吗