高级技巧

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学习目的：1.定制自己的日志工具 2.调试android程序

新建LogUitl类

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public class LogUitl{
  public static final int VERBOSE=1;
  public static final int DEBUG=2;
  public static final int INFO=3;
  public static final int WARN=4;
  public static final int VERROR=5;
  public static final int NOTHING=1;
  public static int level=VERBOSE;

  public static void v(String tag,String msg){
    if(level<=VERBOSE){
      Log.v(tag,msg);
    }
  }
  public static void d(String tag,String msg){
    if(level<=DEBUG){
      Log.d(tag,msg);
    }
  }
  public static void i (String tag,String msg){
    if(level<=INFO){
      Log.i(tag,msg);
    }
  }
  public static void w(String tag,String msg){
    if(level<=WARN){
      Log.w(tag,msg);
    }
  }
  public static void e(String tag,String msg){
    if(level<=ERROR){
      Log.e(tag,msg);
    }
  }
}

使用 如打印WARN级别的日志

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LogUitl.w("TAG","warn log");

2.调试android程序

3.创建定时任务 Alarm机制
如：设置一个任务10s后执行

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long triggerAtTime=SystemClock.elapsedRealtime()+10*1000;
manager.set(AlarmManager.ELAPSED_REALLTIME_WAKEUP,triggerAtTime,pendingIntent);

ELAPSED_REALLTIME_WAKEUP四种模式的其中一种