android - 使用 onTouch 获取触摸位置，然后以编程方式触摸此位置

Question

我做了一个获取触摸位置的应用程序，现在我想让它点击这个地方..

代码如下:

public class MainActivity extends Activity {
    @Override
    //OnCreate
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //GetTouch location
        @Override
        public boolean onTouchEvent(MotionEvent event) {
            Toast.makeText(this, "Location Located",Toast.LENGTH_SHORT).show();
            int eventaction = event.getAction();
            Point point = new Point();
            point.x = (int) event.getX();
            point.y = (int) event.getY();
            switch (eventaction) {
                case MotionEvent.ACTION_DOWN:
                    break;     
            }
            return false;
        }
    }
}

我只希望它以编程方式触摸这个地方..

我该怎么做？

Answer 1

您需要使用一些 View 来注册您的触摸监听器。我选择了默认的 RelativeLayout。我将回调点击的延迟设置为 2 秒。

请注意，您需要保存最后一次模拟触摸 (simulationEvent) 并检查 onTouchListener 内部是否不是该事件。如果没有此检查，您会一遍又一遍地在同一个地方重复点击，因为模拟会自行回调。

如果只想注册模拟触摸，将onTouchListener的最后一个返回值改为true。

package com.example.virtualclicker;

import android.os.Handler;
import android.os.SystemClock;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.RelativeLayout;

/**
 * Created by Simon on 2014 Jul 09.
 */
public class MainActivity extends ActionBarActivity {

    private MotionEvent simulationEvent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.myLayout);

        relativeLayout.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event == simulationEvent)
                    return false;
                int action = event.getAction();
                int x = (int)event.getX();
                int y = (int)event.getY();
                Log.e("onTouchListener", "User touch at X:" + x + " Y:" + y);
                long length = 0;
                if (action == MotionEvent.ACTION_DOWN) {
                    click(v, x, y);
                }
                return false;
            }
        });
    }

    public void click(final View view, final int x, final int y) {
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                // SIMULATION BEGINS HERE AFTER 2000 Millis ///
                long touchTime = SystemClock.uptimeMillis();
                simulationEvent = MotionEvent.obtain(touchTime, touchTime,
                        MotionEvent.ACTION_DOWN, x, y, 0);
                view.dispatchTouchEvent(simulationEvent);

                simulationEvent = MotionEvent.obtain(touchTime, touchTime,
                        MotionEvent.ACTION_UP, x, y, 0);
                view.dispatchTouchEvent(simulationEvent);
                Log.e("simulatedTouch","simulated touch executed at X:"+x+" Y:"+y);
            }
        }, 2000);
    }

}

希望这对你有用。

编辑:

layout/activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/myLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"/>