导论

在Android中模拟一个点击事件有三种方式是通过模拟MotionEvent来实现；一种是通过ADB来实现；一种是通过Instrumentation测试框架来实现

第一种：模拟MotionEvent

通用方法如下：

private void setSimulateClick(View view, float x, float y) {
		long downTime = SystemClock.uptimeMillis();
		final MotionEvent downEvent = MotionEvent.obtain(downTime, downTime,
				MotionEvent.ACTION_DOWN, x, y, 0);
		downTime += 1000;
		final MotionEvent upEvent = MotionEvent.obtain(downTime, downTime,
				MotionEvent.ACTION_UP, x, y, 0);
		view.onTouchEvent(downEvent);
		view.onTouchEvent(upEvent);
		downEvent.recycle();
		upEvent.recycle();
	}

Demo：

package com.xys.simulateevent;

import android.app.Activity;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {

	Button button;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		button = (Button) findViewById(R.id.button1);
	}

	public void clickeMe(View view) {
		Toast.makeText(this, "clicked", Toast.LENGTH_LONG).show();
	}

	public void simulate(View view) {
		setSimulateClick(button, 160, 100);
	}

	private void setSimulateClick(View view, float x, float y) {
		long downTime = SystemClock.uptimeMillis();
		final MotionEvent downEvent = MotionEvent.obtain(downTime, downTime,
				MotionEvent.ACTION_DOWN, x, y, 0);
		downTime += 1000;
		final MotionEvent upEvent = MotionEvent.obtain(downTime, downTime,
				MotionEvent.ACTION_UP, x, y, 0);
		view.onTouchEvent(downEvent);
		view.onTouchEvent(upEvent);
		downEvent.recycle();
		upEvent.recycle();
	}
}

第二种：ADB控制

ADB中通过input来实现，用于输入touch，key等事件：

The sources are:
      trackball
      joystick
      touchnavigation
      mouse
      keyboard
      gamepad
      touchpad
      dpad
      stylus
      touchscreen

The commands and default sources are:
      text <string> (Default: touchscreen)
      keyevent [--longpress] <key code number or name> ... (Default: keyboard)
      tap <x> <y> (Default: touchscreen)
      swipe <x1> <y1> <x2> <y2> [duration(ms)] (Default: touchscreen)
      press (Default: trackball)
      roll <dx> <dy> (Default: trackball)

Demo 输入按键enter key：

adb shell input keyevent 66

Demo 输入输入滑动操作：

adb shell input touchscreen swipe 18 665 18 350

第三种：Instrumentation

Instrumentation是Android的测试框架，通过他，可以模拟很多Activity操作

        //KeyEvent.KEYCODE_MENU
	//KeyEvent.KEYCODE_BACK
	 public static void sendKeyEvent(final int KeyCode) {
	       new Thread() {     //不可在主线程中调用
	            public void run() {
	                try {
	                    Instrumentation inst = new Instrumentation();
	                    inst.sendKeyDownUpSync(KeyCode);
	               } catch (Exception e) {
	                    e.printStackTrace();
	                }
	             }

	        }.start();
	 }

第四种：通过使用sendevent

adb提供了控制手机的另一种实现： sendevent [device] [type] [code] [value]

eg：229就是menu的type值

sendevent /dev/input/event0 1 229 1

sendevent /dev/input/event0 1 229 0

这两句需要一起执行，因为一个点击事件包含down和up，不然不能执行操作