# Android9.0的关闭关机震动的修改

juzi_bug

于 2019-10-18 17:50:50 发布

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文章标签： Android java

本文链接：https://blog.youkuaiyun.com/juzi_bug/article/details/102629697

本文深入探讨了Android系统中ShutdownThread类的修改细节，分析了系统在进行关机和重启操作时的流程，特别是在处理低级重启、日志记录、振动提醒等方面的代码变更。通过对diff文件的解读，揭示了Android系统如何优雅地处理设备关闭前的最后操作。

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所谓人狠话不多，我们直接上主题，贴上diff
diff --git a/P08765_git/frameworks/base/services/core/java/com/android/server/power/ShutdownThread.java b/P08765_git/frameworks/base/services/core/java/com/android/server/power/ShutdownThread.javaold mode 100644new mode 100755index 3088d75…6e2354e— a/P08765_git/frameworks/base/services/core/java/com/android/server/power/ShutdownThread.java+++ b/P08765_git/frameworks/base/services/core/java/com/android/server/power/ShutdownThread.java@@ -695,7 +695,7 @@ public class ShutdownThread extends Thread {
PowerManagerService.lowLevelReboot(reason);
Log.e(TAG, “Reboot failed, will attempt shutdown instead”);
reason = null;

   } else if (SHUTDOWN_VIBRATE_MS > 0 && context != null) {

   } else if (SHUTDOWN_VIBRATE_MS < 0 && context != null) {

// vibrate before shutting down
Vibrator vibrator = new SystemVibrator(context);
try {

一顿炒作猛如虎，一看验证就OK