广播接收器和Android的alarmManager [英] BroadcastReceiver and alarmManager Android

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问题描述

我想使用与broadcasReceiver报警马槽里。我尝试在教程红粉使用例如:系统服务和广播接收器。但是当我的时间结束后运行的例子,我还没有,我想展现的敬酒。

:在code是由以下code给出

我的主要活动:

 公共类AlarmActivity延伸活动{
    / **当第一次创建活动调用。 * /    @覆盖
    公共无效的onCreate(捆绑savedInstanceState){
        super.onCreate(savedInstanceState);
        的setContentView(R.layout.activity_alarm);
    }    公共无效startAlert(查看视图){
        文字的EditText =(EditText上)findViewById(R.id.time);
        INT I =的Integer.parseInt(text.getText()的toString());
        意向意图=新意图(这一点,MyBroadcastReceiver.class);
        的PendingIntent的PendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(),234324243,​​意向,0);
        AlarmManager alarmManager =(AlarmManager)getSystemService(ALARM_SERVICE);
        alarmManager.set(AlarmManager.RTC_WAKEUP,System.currentTimeMillis的()
                +(I * 1000)的PendingIntent);
        Toast.makeText(这一点,报警设置中的+ I +秒
                Toast.LENGTH_LONG).show();
    }
}

我的广播接收器:

 公共类MyBroadcastReceiver扩展广播接收器{
    公共无效的onReceive(上下文的背景下,意图意图){
        Toast.makeText(背景下,不要panik但你的时间到了!!!!
                Toast.LENGTH_LONG).show();
        //震动移动电话
        振动器振动=(振动器)context.getSystemService(Context.VIBRATOR_SERVICE);
        vibrator.vibrate(2000);
    }}

我的主要Laout:

 <?XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
              机器人:layout_width =match_parent
              机器人:layout_height =match_parent
              机器人:方向=垂直>    <的EditText
            机器人:ID =@ + ID /时间
            机器人:layout_width =WRAP_CONTENT
            机器人:layout_height =WRAP_CONTENT
            机器人:提示=秒数
            安卓的inputType =numberDecimal>
    < /&的EditText GT;    <按钮
            机器人:ID =@ + ID / OK
            机器人:layout_width =WRAP_CONTENT
            机器人:layout_height =WRAP_CONTENT
            安卓的onClick =startAlert
            机器人:文字=启动计数器>
    < /按钮>< / LinearLayout中>

和manifestfile:

 <?XML版本=1.0编码=UTF-8&GT?;
<清单的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
    包=com.example.broadcastreceiver
    安卓版code =1
    机器人:=的versionName1.0>    <用途-SDK
        安卓的minSdkVersion =8
        机器人:targetSdkVersion =18/>
    <使用许可权的android:NAME =android.permission.VIBRATE>
    < /使用许可权>    <应用
        机器人:allowBackup =真
        机器人:图标=@绘制/ ic_launcher
        机器人:标签=@字符串/ APP_NAME
        机器人:主题=@风格/ AppTheme>
        <活动
            机器人:名字=com.example.broadcastreceiver.AlarmActivity
            机器人:标签=@字符串/ APP_NAME>
            &所述;意图滤光器>
                <作用机器人:名字=android.intent.action.MAIN/>                <类机器人:名字=android.intent.category.LAUNCHER/>
            &所述; /意图滤光器>
        < /活性GT;
         <接收机器人:MyBroadcastReceiverNAME =>
        < /接收器>
    < /用途>< /清单>


解决方案

接收器必须从广播接收器延长

 公共类MyBroadcastReceiver扩展广播接收器{
    // ...
}

另外要确保清单文件接收器名称是正确的。

I am trying to use an alarm manger with broadcasReceiver. I try to use the example gived in Tutorial: System Services and BroadcastReceiver . but when I run the example after the end of the time I haven't the toast that i would like to show. the code is given by the code below:

My main Activity:

public class AlarmActivity extends Activity {


    /** Called when the activity is first created. */

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_alarm);
    }

    public void startAlert(View view) {
        EditText text = (EditText) findViewById(R.id.time);
        int i = Integer.parseInt(text.getText().toString());
        Intent intent = new Intent(this, MyBroadcastReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 234324243, intent, 0);
        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()
                + (i * 1000), pendingIntent);
        Toast.makeText(this, "Alarm set in " + i + " seconds",
                Toast.LENGTH_LONG).show();
    }


}

my broadCastReceiver:

public class MyBroadcastReceiver extends BroadcastReceiver{
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "Don't panik but your time is up!!!!.",
                Toast.LENGTH_LONG).show();
        // Vibrate the mobile phone
        Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
        vibrator.vibrate(2000);
    }

}

my main Laout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:orientation="vertical" >

    <EditText
            android:id="@+id/time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:hint="Number of seconds"
            android:inputType="numberDecimal" >
    </EditText>

    <Button
            android:id="@+id/ok"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:onClick="startAlert"
            android:text="Start Counter" >
    </Button>

</LinearLayout>

and the manifestfile:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.broadcastreceiver"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />
    <uses-permission android:name="android.permission.VIBRATE" >
    </uses-permission>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.broadcastreceiver.AlarmActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

解决方案

The receiver must extend from BroadcastReceiver

public class MyBroadcastReceiver extends BroadcastReceiver {
    // ...
}

Also be sure that receiver name in manifest file is correct.

这篇关于广播接收器和Android的alarmManager的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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