I want to receive broadcast BATTERY_LOW, so I declared broadcast receiver in manifest (in order not to rely on current activity. I want my application receive this broadcast even when it's not running. Here's what I did.
<?xml version="1.0" encoding="utf-8"?>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<receiver android:name=".BatteryLevelReceiver">
<intent-filter>
<action android:name="android.intent.action.BATTERY_LOW"/>
<action android:name="android.intent.action.BATTERY_OKAY"/>
<action android:name="android.intent.action.POWER_CONNECTED"/>
<action android:name="android.intent.action.POWER_DISCONNECTED"/>A
</intent-filter>
</receiver>
<activity
android:name=".MainActivity"
android:launchMode="singleTop">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
And BatteryLevelReceiver itself (package com.wayruha.serviceguard.onduty) :
public class BatteryLevelReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.w(this.getClass().getName(),intent.getAction());
Log.w(this.getClass().getName(),"Low level:"+intent.getIntExtra(BatteryManager.EXTRA_LEVEL,-1));
}
}
I cant receive any of declared events!There are some similar questions here, but none of them helps me. Im using telnet to set capacity or 'ac on/off' for an emulator.
Try to add permission in your manifest file:
<uses-permission android:name="android.permission.BATTERY_STATS"/>
Related
I want to create an app that starts the service after rebooted, but I do not want to show the UI–just like the service run in the background silently. I can create it,but after rebooted the application crashes. Because, MainActivity had not launched and I don't want to launch any activity. How do I solve this problem?
My manifest.xml:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.galleryapp">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.CAMERA" />
<application
android:name=".App"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
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=".CameraEventReceiver"
android:enabled="false">
<intent-filter>
<action android:name="com.android.camera.NEW_PICTURE" />
</intent-filter>
</receiver>
<receiver android:name="com.galleryapp.RebootDeviceReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<service
android:name=".BackgroundService"
android:exported="true" />
</application>
And my receiver class:
public class RebootDeviceReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Intent serviceIntent = new Intent(context, BackgroundService.class);
context.startService(serviceIntent);
}
}
You need to write a BroadcastReceiver and register it in your Manifest file.
<receiver android:name="your.package.BootCompletedReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
From your BroadcastReceiver you can then start a service. For example, in my code I'm using a JobIntentService.
public class BootCompletedReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Intent msgIntent = new Intent(context, MyJobIntentService.class);
msgIntent.setAction(MyJobIntentService.ACTION_RESCHEDULE);
MyJobIntentService.enqueueWork(context, msgIntent);
}
}
If you want your service to run for a longer amount of time, you need to run it as a foreground service, at least for newer Android versions.
I'm pretty new to android programming. I'm trying to start a service when the phone is started but it does not work. I've already seen other question done by other users but no one worked till now. This is my broadcast receiver.
public class StartBoot extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)){
Intent intent1 = new Intent(context,MyService.class);
context.startService(intent1);
}
}
}
and this is my manifest
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
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=".StartBoot">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</receiver>
<service
android:name=".MyService"
android:enabled="true"
android:exported="true"></service>
</application>
In the log i read this
W/BroadcastQueue: Permission Denial: receiving Intent { act=android.intent.action.BOOT_COMPLETED flg=0x9000010 (has extras) } to com.google.android.apps.docs/.app.NotificationChannelReceiver requires android.permission.RECEIVE_BOOT_COMPLETED due to sender null (uid 1000)
Thank you in advance for the answers
Remove
<category android:name="android.intent.category.DEFAULT"/>
from the <intent-filter> inside <receiver> tag. This category is only needed for <intent-filter> inside of <activity> declaration. For a <receiver> you only need the ACTION.
The error message you posted has nothing to do with your application, it is complaining about another application.
I've almost made my sms app, only one bug still remains. When phone receives incoming sms it somehow goes to my app and to default one. I thought that problem was in action of intent, but changing it does nothing. The question is - how to intercept incoming sms and forbid default app to do the same?
AndroidManifest:
<manifest package="lexzcq.com.smska"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-permission android:name="android.permission.RECEIVE_SMS"/>
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission
android:name="android.permission.SET_PREFERRED_APPLICATIONS"
tools:ignore="ProtectedPermissions"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<application
android:allowBackup="true"
android:icon="#drawable/logo"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:launchMode="singleTask"
android:theme="#style/Theme.AppCompat.Light.NoActionBar">
<intent-filter android:priority="999">
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
<category android:name="android.intent.category.APP_MESSAGING"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<receiver
android:name=".SmsReceiver"
android:permission="android.permission.BROADCAST_SMS"
>
<intent-filter android:priority="999">
<action android:name="android.provider.Telephony.SMS_RECEIVED"/>
<category android:name="android.intent.category.APP_MESSAGING"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</receiver>
<activity android:name=".ChatWindow">
<intent-filter>
<action android:name="com.lexzcq.com.lexzcq.sms_receive_intent"/>
</intent-filter>
</activity>
<application android:name=".MyApp">
</application>
</application>
</manifest>
SmsReceiver.class
public class SmsReceiver extends BroadcastReceiver {
#Override
public void onReceive (Context context, Intent intent) {
*//here I handle sms from pdus*
Intent broadcastIntent = new Intent ()
.putExtra ("address", address)
.putExtra ("body", body)
.setAction ("com.lexzcq.sms_receive_intent");
*//here I'm writing sms to database*
context.sendBroadcast (broadcastIntent);
abortBroadcast ();
}
}
}
If needed - I can provide broadcast receivers from MainActivity.class
P.S. Most weird part - that when I'm sending sms it somehow saves to default app but I didn't broadcast it with SMS_RECEIVED_ACTION.
I have a broadcast receiver that works when I set it up dynamically, but does not work when declared in a manifest file.
I've googled for this and all the examples match what I'm doing in my code. I do have an activity in my manifest file, so that can't be the problem. I've tried fully specifying the receiver class name as well as using .MyBroadcastReceiver but that did not make any difference.
Can someone help?
Here is my manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mikrodyne.receiverdemo" >
<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" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name="com.mikrodyne.receiverdemo.MyBroadcastReceiver"
android:enabled="true">
<intent-filter>
<action android:name="android.intent.action.HEADSET_PLUG" />
</intent-filter>
</receiver>
</application>
</manifest>
And here is my receiver class
public class MyBroadcastReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
String action = intent.getAction();
Log.d("Receiver", "Received action: " + action);
}
}
TIA
Nisha Miller
As per the documentation for HEADSET_PLUG:
You cannot receive this through components declared in manifests, only by explicitly registering for it with Context.registerReceiver().
So what you're trying to do is not possible.
If you want to get events from outside, you need to set android:exported="true"
Note: you can't get that intent.
Put this in your AndroidManifest.xml
<receiver
android:name="com.mikrodyne.receiverdemo.MyBroadcastReceiver"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.HEADSET_PLUG" />
</intent-filter>
</receiver>
So I am trying to develop a custom lockscreen
but my broadcastreceiver won't fire
my manifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.alexander.fuchs.lockscreen"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".app"
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=".myreceiver">
<intent-filter>
<action android:name="android.intent.action.SCREEN_OFF"/>
<action android:name="android.intent.action.SCREEN_ON"/>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>
</application>
</manifest>
my receiver :
public class myreceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.d("receiver","works");
Toast.makeText(context,"works",Toast.LENGTH_LONG).show();
Intent in=new Intent(context,app.class);
context.startActivity(in);
}
}
the receiver should show me that it is fired :D
but ther aren't any logs in logcat
well , for the screen off and screen on , this cannot be inside the manifest , but only at runtime . see this:
http://thinkandroid.wordpress.com/2010/01/24/handling-screen-off-and-screen-on-intents/
for the bootup , it must be in the manifest , so something else is wrong with it.check the path of the class. this is surely the cause of the problem.