振動器 (Vibrator)

我們可以使用 android.os.Vibrator 類控制 Android 設備上的振動器.

• boolean hasVibrator(): 檢查硬件是否有震動器. (API Level 11)
• void vibrate(long milliseconds): 開啟振動器.
• void vibrate(long[] pattern, int repeat): 按模式振動.
• void cancel(): 取消振動.

實例:

package com.AndroidVibrator;

import android.app.Activity;
import android.os.Bundle;
import android.os.Vibrator;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class AndroidVibratorActivity extends Activity {
 
 long[] vibratepattern = {100, 400, 500};
 Vibrator vibrator;
 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        vibrator = (Vibrator)getSystemService(
          AndroidVibratorActivity.VIBRATOR_SERVICE);
        
        Button startVibrate = (Button)findViewById(R.id.startvibrate);
        startVibrate.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View arg0) {
    vibrator.vibrate(vibratepattern, 0);
    
   }});
        
        Button stopVibrate = (Button)findViewById(R.id.stopvibrate);
        stopVibrate.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View v) {
    vibrator.cancel();
    
   }});
        
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />
    <Button
        android:id="@+id/startvibrate"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Start Vibrate" />
    <Button
        android:id="@+id/stopvibrate"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Stop Vibrate" />
    
</LinearLayout>

使用 android.os.Vibrator (振動器), 需要修改 AndroidManifest.xml 添加 "android.permission.VIBRATE" 權限.