Android手机中的震动由Vibrator实现

设置震动事件，需要知道其震动的时间长短、震动的周期等。

在Android Vibrator中，震动的时间一毫秒计算（1/1000秒），所以如果设置的时间值太小，会感觉不出来。

通过调用Vibrator的vibrate(long[] pattern, int repeat)方法实现。

前一个参数为设置震动的效果的数组，第二个参数为 -1表示只震动一次，为0则震动会一直持续。

一个demo：

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package  com.shao.vibrator;   import  android.app.Activity; import  android.os.Bundle; import  android.os.Vibrator; import  android.widget.CompoundButton; import  android.widget.Toast; import  android.widget.CompoundButton.OnCheckedChangeListener; import  android.widget.ToggleButton;   public  class  VibratorActivity  extends  Activity {      /** Called when the activity is first created. */        private  Vibrator vibrator;      private  ToggleButton tog1;      private  ToggleButton tog2;      private  ToggleButton tog3;        @Override      public  void  onCreate(Bundle savedInstanceState) {          super .onCreate(savedInstanceState);          setContentView(R.layout.main);          init();          tog1.setOnCheckedChangeListener( new  OnCheckedChangeListener() {                @Override              public  void  onCheckedChanged(CompoundButton buttonView,                      boolean  isChecked) {                  // TODO Auto-generated method stub                  if  (isChecked) {                      // 设置震动周期                      vibrator.vibrate( new  long [] {  1000 ,  10 ,  100 ,  1000  }, - 1 );                      showToast( "OK" );                  }  else  {                      // 取消震动                      vibrator.cancel();                      showToast( "CANCEL" );                  }              }          });          tog2.setOnCheckedChangeListener( new  OnCheckedChangeListener() {                @Override              public  void  onCheckedChanged(CompoundButton buttonView,                      boolean  isChecked) {                  // TODO Auto-generated method stub                  if  (isChecked) {                      // 设置震动周期                      vibrator.vibrate( new  long [] {  100 ,  100 ,  100 ,  1000  },  0 );                      showToast( "OK" );                  }  else  {                      // 取消震动                      vibrator.cancel();                      showToast( "CANCEL" );                  }              }          });          tog3.setOnCheckedChangeListener( new  OnCheckedChangeListener() {                @Override              public  void  onCheckedChanged(CompoundButton buttonView,                      boolean  isChecked) {                  // TODO Auto-generated method stub                  if  (isChecked) {                      // 设置震动周期                      vibrator.vibrate( new  long [] {  1000 ,  50 ,  1000 ,  50 ,  1000  }, 0 );                      showToast( "OK" );                  }  else  {                      // 取消震动                      vibrator.cancel();                      showToast( "CANCEL" );                  }              }          });        }        private  void  init() {          tog1 = (ToggleButton) findViewById(R.id.tog1);          tog2 = (ToggleButton) findViewById(R.id.tog2);          tog3 = (ToggleButton) findViewById(R.id.tog3);          vibrator = (Vibrator)  this .getSystemService(VIBRATOR_SERVICE);      }        private  void  showToast(String msg) {          Toast.makeText( this , msg,  1 ).show();      } }

xml：

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<? xml  version = "1.0"  encoding = "utf-8" ?> < LinearLayout  xmlns:android = "http://schemas.android.com/apk/res/android"      android:orientation = "vertical"      android:layout_width = "fill_parent"      android:layout_height = "fill_parent" >      < RelativeLayout          android:layout_marginTop = "20dp"          android:orientation = "horizontal"          android:layout_width = "fill_parent"          android:layout_height = "wrap_content" >          < TextView              android:layout_width = "wrap_content"              android:layout_height = "wrap_content"              android:text = "短震动"  />          < ToggleButton              android:id = "@+id/tog1"              android:layout_width = "wrap_content"              android:layout_height = "wrap_content"              android:textOn = "关闭"  android:textOff = "打开"              android:layout_alignParentRight = "true"  />      </ RelativeLayout >      < RelativeLayout          android:layout_marginTop = "20dp"          android:orientation = "horizontal"          android:layout_width = "fill_parent"          android:layout_height = "wrap_content" >          < TextView              android:layout_width = "wrap_content"              android:layout_height = "wrap_content"              android:text = "长震动"  />          < ToggleButton              android:id = "@+id/tog2"              android:layout_width = "wrap_content"              android:layout_height = "wrap_content"              android:textOn = "关闭"  android:textOff = "打开"              android:layout_alignParentRight = "true"  />      </ RelativeLayout >      < RelativeLayout          android:layout_marginTop = "20dp"          android:orientation = "horizontal"          android:layout_width = "fill_parent"          android:layout_height = "wrap_content" >          < TextView              android:layout_width = "wrap_content"              android:layout_height = "wrap_content"              android:text = "节奏震动"  />          < ToggleButton              android:id = "@+id/tog3"              android:layout_width = "wrap_content"              android:layout_height = "wrap_content"              android:textOn = "关闭"              android:textOff = "打开"              android:layout_alignParentRight = "true"  />      </ RelativeLayout > </ LinearLayout >

最后别忘了加上<uses-permission  android:name="android.permission.VIBRATE"/>权限。