广播接收器未在三星注册

Question

广播接收器

我有一个每天重复闹钟的应用程序，但不知何故在重启后它没有注册三星 Galaxy Grand Neo (Android 4.4.2) 的广播接收器，但在索尼 Xperia ZR 上工作正常 (Android5.0.2)

清单

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

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".FullscreenActivity"
            android:configChanges="orientation|keyboardHidden|screenSize"
            android:excludeFromRecents="true"
            android:label="@string/title_activity_fullscreen"
            android:screenOrientation="portrait"
            android:theme="@style/FullscreenTheme" >
        </activity>
        <activity
            android:name=".SettingsActivity"
            android:label="@string/title_activity_settings"
            android:parentActivityName=".MainActivity"
            android:screenOrientation="portrait"
            android:theme="@style/SettingsTheme" >
        </activity>

        <receiver
            android:name=".AlarmReceiver"
            android:enabled="true"
            android:exported="true" >
            <intent-filter>
                <action android:name=".AlarmReceiver" />
            </intent-filter>
        </receiver>

        <service
            android:name=".AlarmService"
            android:enabled="true"
            android:exported="true" >
        </service>

        <receiver
            android:name=".BootUpReceiver"
            android:enabled="true"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" />
            </intent-filter>
        </receiver>

        <service
            android:name=".StopAlarm"
            android:enabled="true"
            android:exported="true" >
        </service>

    </application>

</manifest>

BootUpReceiver class

package com.sap.wish;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.widget.Toast;

import java.util.Calendar;

public class BootUpReceiver extends BroadcastReceiver {

    AlarmManager alarmManager;
    PendingIntent pendingIntent;
    SQLiteDatabase db;
    String tableName = "SETTINGS";
    final int ALARM_ID = 1;
    final String id = "ID";
    final String value = "VALUE";
    public BootUpReceiver() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO: This method is called when the BroadcastReceiver is receiving
        // an Intent broadcast.
        //throw new UnsupportedOperationException("Not yet implemented");
        db = context.getApplicationContext().openOrCreateDatabase("WTDatabase", Context.MODE_PRIVATE, null);
        db.execSQL("CREATE TABLE IF NOT EXISTS " + tableName
                + "(" + id + " INT PRIMARY KEY NOT NULL," +
                value + " TEXT NOT NULL);");
        Cursor c = db.rawQuery("SELECT * FROM " + tableName, null);
        if (c.moveToFirst()) {
            String result = c.getString(c.getColumnIndex(value));
            long savedmilli = Long.parseLong(result);
            Calendar savedCalendar = Calendar.getInstance();
            savedCalendar.setTimeInMillis(savedmilli);
            alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
            Intent intent2 = new Intent(context, AlarmReceiver.class);
            pendingIntent = PendingIntent.getBroadcast(context, ALARM_ID, intent2, 0);
            if (savedmilli != 0) {
                while (System.currentTimeMillis() > savedmilli)
                    savedmilli = savedmilli + (24 * 60 * 60 * 1000);
                db.execSQL("UPDATE " + tableName + " SET " + value + "='" + String.valueOf(savedmilli) + "' WHERE " + id + "=" + 1);
                alarmManager.setExact(AlarmManager.RTC_WAKEUP, savedmilli, pendingIntent);
            }
        }
        c.close();
    }
}

Answer 1

我认为这是因为您的应用程序可能安装在 外部 SD 卡 上，如果是这样，您的 BOOT_COMPLETED 接收器将永远不会被调用。

要修复此添加：

<action android:name="android.intent.action.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE" />

你的接收者的意图过滤器是这样的：

<receiver
        android:name=".BootUpReceiver"
        android:enabled="true"
        android:exported="true">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
            <action android:name="android.intent.action.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE" />
        </intent-filter>
    </receiver>

希望这对您有所帮助，如果没有，可能会更改安装位置：

android:installLocation="internalOnly"

编辑

一些设备获得了快速 boot/reboot 功能并且不会触发 BOOT_COMPLETED 接收器，在这种情况下尝试使用：

<action android:name="android.intent.action.QUICKBOOT_POWERON" />

祝你好运

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