广播接收器和Android的alarmManager

本文介绍了广播接收器和Android的alarmManager的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 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：

＆LT;？XML版本=1.0编码=UTF-8＆GT？;＆LT; LinearLayout中的xmlns：机器人=htt​​p://schemas.android/apk/res/android              机器人：layout_width =match_parent              机器人：layout_height =match_parent              机器人：方向=垂直＆GT;    ＆LT;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＆GT;    ＆LT; /＆的EditText GT;    ＆LT;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＆GT;    ＆LT; /按钮＆GT;＆LT; / LinearLayout中＆GT;

和manifestfile：

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

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="schemas.android/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="schemas.android/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.