Android Vibrator手机震动详解

添加权限

在AndroidManifest.xml文件中添加如下震动权限

<uses-permission android:name="android.permission.VIBRATE"/>

获取Vibrator

vibrator = (Vibrator)context.getSystemService(this.VIBRATOR_SERVICE);

简单震动

先看下简单震动方法vibrate(long milliseconds)的源码

/**
 * Vibrate constantly for the specified period of time.
 *
 * @param milliseconds The number of milliseconds to vibrate.
 *
 * @deprecated Use {@link #vibrate(VibrationEffect)} instead.
 */
@Deprecated
@RequiresPermission(android.Manifest.permission.VIBRATE)
public void vibrate(long milliseconds) {
	vibrate(milliseconds, null);
}

使用方法很简单，就是传入一个毫秒值，手机会持续震动该毫秒值时长，震动完即停止

vibrator = (Vibrator)context.getSystemService(this.VIBRATOR_SERVICE);
vibrator.vibrate(1000); // 震动一秒

复杂震动

先看下复杂震动方法vibrate(long[] pattern, int repeat)的源码及注释说明

/**
 * Vibrate with a given pattern.
 *
 * <p>
 * Pass in an array of ints that are the durations for which to turn on or off
 * the vibrator in milliseconds.  The first value indicates the number of milliseconds
 * to wait before turning the vibrator on.  The next value indicates the number of milliseconds
 * for which to keep the vibrator on before turning it off.  Subsequent values alternate
 * between durations in milliseconds to turn the vibrator off or to turn the vibrator on.
 * </p><p>
 * To cause the pattern to repeat, pass the index into the pattern array at which
 * to start the repeat, or -1 to disable repeating.
 * </p>
 *
 * @param pattern an array of longs of times for which to turn the vibrator on or off.
 * @param repeat the index into pattern at which to repeat, or -1 if
 *        you don't want to repeat.
 *
 * @deprecated Use {@link #vibrate(VibrationEffect)} instead.
 */
@Deprecated
@RequiresPermission(android.Manifest.permission.VIBRATE)
public void vibrate(long[] pattern, int repeat) {
	vibrate(pattern, repeat, null);
}

第一个参数pattern表示的是震动的模式，是一个long数组，表示的是震动和停止震动交替的时长，且第一个为停止震动的时长，第二个为震动的时长，第三个为停止震动的时长，以此类推。
第二个参数repeat表示从pattern中的第几个位置开始无限重复震动，若设置成-1则表示不重复震动

vibrator = (Vibrator)context.getSystemService(this.VIBRATOR_SERVICE);
long[] pattern = {100, 200, 100, 200}; // 100ms后开始震动200ms，然后再停止100ms，再震动200ms
vibrator.vibrate(pattern, 0); // 从pattern的0位置重复循环震动

若设置成重复震动需调用取消方法停止循环震动

vibrator.cancel();

来源：https://blog.csdn.net/mqdxiaoxiao/article/details/98959758

标签

vibrate