Question

我已经尝试使用setRepeating函数对AlarmManager进行半小时的休息。但是它在不稳定的时间不断给我报警。我的代码是

MainActivity.java

package com.knby.alarmmanagerdemo;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import java.util.Calendar;


public class MainActivity extends AppCompatActivity {
    private  PendingIntent pendingIntent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Intent alarmIntent = new Intent(this, AlarmReceiver.class);
        pendingIntent = PendingIntent.getBroadcast(this, 0, alarmIntent, 0);
        Button b1=(Button)findViewById(R.id.startAlarmAt10);
        Button b2=(Button)findViewById(R.id.stopAlarm);



        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                AlarmManager manager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
                AlarmManager manager1 = (AlarmManager) getSystemService(Context.ALARM_SERVICE);


                Calendar calendar = Calendar.getInstance();
                calendar.setTimeInMillis(System.currentTimeMillis());
                calendar.set(Calendar.HOUR_OF_DAY,14);
                calendar.set(Calendar.MINUTE,0);
                calendar.set(Calendar.SECOND,0);

                manager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),60*1000*30, pendingIntent);


            }
        });

        b2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                AlarmManager manager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
                manager.cancel(pendingIntent);
                Toast.makeText(MainActivity.this, "Alarm Canceled", Toast.LENGTH_SHORT).show();
            }
        });

    }
}

AlarmReceiver.java

package com.knby.alarmmanagerdemo;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;

/**
 * Created by Kevin on 7/17/2016.
 */
public class AlarmReceiver extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "I'm running bro!", Toast.LENGTH_SHORT).show();

        Log.i("Errore","Toast?");
    }
}

的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.knby.alarmmanagerdemo">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".AlarmReceiver"
            >
        </receiver>
    </application>


    <!-- Will not be called unless the application explicitly enables it -->


</manifest>

我的日志

07-23 15:19:47.770 20447-20447/com.knby.alarmmanagerdemo W/System: ClassLoader referenced unknown path: /data/app/com.knby.alarmmanagerdemo-1/lib/arm
07-23 15:19:47.977 20447-20447/com.knby.alarmmanagerdemo W/System: ClassLoader referenced unknown path: /data/app/com.knby.alarmmanagerdemo-1/lib/arm
07-23 15:19:48.146 20447-20447/com.knby.alarmmanagerdemo W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
07-23 15:19:48.377 20447-20485/com.knby.alarmmanagerdemo I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: EGL 1.4 QUALCOMM build:  (Ifd751822f5)
                                                                       OpenGL ES Shader Compiler Version: XE031.06.00.05
                                                                       Build Date: 01/26/16 Tue
                                                                       Local Branch: AU12_SBA
                                                                       Remote Branch: 
                                                                       Local Patches: 
                                                                       Reconstruct Branch: 
07-23 15:19:48.379 20447-20485/com.knby.alarmmanagerdemo I/OpenGLRenderer: Initialized EGL, version 1.4
07-23 15:20:35.339 20447-20447/com.knby.alarmmanagerdemo I/Errore: Toast?
07-23 15:21:24.484 20447-20447/com.knby.alarmmanagerdemo I/Errore: Toast?
07-23 15:24:00.671 20447-20447/com.knby.alarmmanagerdemo I/Errore: Toast?
07-23 15:27:01.944 20447-20447/com.knby.alarmmanagerdemo I/Errore: Toast?
07-23 15:30:25.860 20447-20447/com.knby.alarmmanagerdemo I/Errore: Toast?

Android AlarmManager在适当的时候无法正常工作

0 个答案: