安卓处理机制之onTouchaction

来源：互联网发布：云和大数据编辑：程序博客网时间：2024/09/21 08:18
package com.lay1;import android.app.Activity;import android.os.Bundle;import android.view.KeyEvent;import android.view.MotionEvent;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.Toast; public class LayoutDemo1Activity extends Activity{    private Button button;      @Override    public void onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        button = (Button) findViewById(R.id.button);        button.setOnClickListener(listener);    }      OnClickListener listener = new OnClickListener()    {        @Override        public void onClick(View v)        {            DisplayToast("点击了OK！");        }    };      public boolean onKeyDown(int keyCode, KeyEvent event)    {        switch (keyCode)        {            case KeyEvent.KEYCODE_BACK:                DisplayToast("弹起：返回键");                break;            case KeyEvent.KEYCODE_DPAD_CENTER:                DisplayToast("按下：中间键");                break;            case KeyEvent.KEYCODE_DPAD_UP:                DisplayToast("按下：向上键");                break;            case KeyEvent.KEYCODE_DPAD_DOWN:                DisplayToast("按下：向下键");                break;            case KeyEvent.KEYCODE_DPAD_LEFT:                DisplayToast("按下：左方向键");                break;            case KeyEvent.KEYCODE_DPAD_RIGHT:                DisplayToast("按下：有方向键");                break;            default:                break;        }        //return super.onKeyDown(keyCode, event);        return false;    }     /* public boolean onKeyUp(int keyCode, KeyEvent event)    {        switch (keyCode)        {                         case KeyEvent.KEYCODE_DPAD_CENTER:                DisplayToast("弹起：中间键");                break;            case KeyEvent.KEYCODE_DPAD_DOWN:                DisplayToast("弹起：向下键");                break;            case KeyEvent.KEYCODE_DPAD_LEFT:                DisplayToast("弹起：向左键");                break;            case KeyEvent.KEYCODE_DPAD_RIGHT:                DisplayToast("弹起：向右键");                break;            case KeyEvent.KEYCODE_DPAD_UP:                DisplayToast("弹起：向上键");                break;        }        return super.onKeyDown(keyCode, event);    }*/      public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event)    {        return super.onKeyMultiple(keyCode, repeatCount, event);    }      public boolean onTouchEvent(MotionEvent event)    {        int iAction = event.getAction();        if (iAction == MotionEvent.ACTION_CANCEL || iAction == MotionEvent.ACTION_DOWN                || iAction == MotionEvent.ACTION_MOVE)        {            return false;        }        int x = (int) event.getX();        int y = (int) event.getY();        DisplayToast("触笔点击坐标:(" + Integer.toString(x) + "," + Integer.toString(y) + ")");        return super.onTouchEvent(event);    }    public void DisplayToast(String str)    {        Toast.makeText(this, str, Toast.LENGTH_SHORT).show();    }}
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