AlarmManager 的唤醒类型

本文主要是介绍AlarmManager 的唤醒类型，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

AlarmManager 的唤醒类型

AlarmManager.RTC，硬件闹钟，不唤醒手机（也可能是其它设备）休眠；当手机休眠时不发射闹钟。
AlarmManager.RTC_WAKEUP，硬件闹钟，当闹钟发躰时唤醒手机休眠；
AlarmManager.ELAPSED_REALTIME，真实时间流逝闹钟，不唤醒手机休眠；当手机休眠时不发射闹钟。
AlarmManager.ELAPSED_REALTIME_WAKEUP，真实时间流逝闹钟，当闹钟发躰时唤醒手机休眠；

具体源码

xref: /frameworks/base/core/java/android/app/AlarmManager.java

83public class AlarmManager {
84    private static final String TAG = "AlarmManager";
85
86    /**
87     * Alarm time in {@link System#currentTimeMillis System.currentTimeMillis()}
88     * (wall clock time in UTC), which will wake up the device when
89     * it goes off.
90     */
91    public static final int RTC_WAKEUP = 0;
92    /**
93     * Alarm time in {@link System#currentTimeMillis System.currentTimeMillis()}
94     * (wall clock time in UTC).  This alarm does not wake the
95     * device up; if it goes off while the device is asleep, it will not be
96     * delivered until the next time the device wakes up.
97     */
98    public static final int RTC = 1;
99    /**
100     * Alarm time in {@link android.os.SystemClock#elapsedRealtime
101     * SystemClock.elapsedRealtime()} (time since boot, including sleep),
102     * which will wake up the device when it goes off.
103     */
104    public static final int ELAPSED_REALTIME_WAKEUP = 2;
105    /**
106     * Alarm time in {@link android.os.SystemClock#elapsedRealtime
107     * SystemClock.elapsedRealtime()} (time since boot, including sleep).
108     * This alarm does not wake the device up; if it goes off while the device
109     * is asleep, it will not be delivered until the next time the device
110     * wakes up.
111     */
112    public static final int ELAPSED_REALTIME = 3

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