public class TestApplication extends MultiDexApplication {
 private static TestApplication mInstance;
 @Override
 public void onCreate() {
  super.onCreate();
  Thread.setDefaultUncaughtExceptionHandler(new CrashHandler());
   }

 public class CrashHandler implements Thread.UncaughtExceptionHandler {
 @Override
 public void uncaughtException(Thread t, Throwable e) {

  //重啟app
  /**
   * 這種方式 功能是可以達成
   * 但是有問題就是如果說你的app掛了 這時候會顯示系統(tǒng)桌面
   * 然后你的app有啟動起來了
   * 給人的感覺不太好
   */
  Intent intent = new Intent();
  Context context = TestApplication.getInstance();
  intent.setClass(context, MainActivity.class);
  intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  context.startActivity(intent);
  PendingIntent pendingIntent = PendingIntent.getActivity(context,0,intent,PendingIntent.FLAG_ONE_SHOT);
  AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
  alarmManager.set(AlarmManager.RTC,System.currentTimeMillis() + 100,pendingIntent);
  Process.killProcess(Process.myPid());
  System.exit(0);

 }
}

 implementation 'com.jakewharton:process-phoenix:2.0.0'

public class CrashHandler implements Thread.UncaughtExceptionHandler {
 @Override
 public void uncaughtException(Thread t, Throwable e) {

  ProcessPhoenix.triggerRebirth(TestApplication.getInstance());
 }
}