Can anybody share the sample code to how to launch android application upon starting/booting up the device?
This code will launch an application on start up. You need to listen for ACTION_BOOT_COMPLETE.
in AndroidManifest.xml (application-part):
<receiver android:enabled="true" android:name=".BootUpReceiver"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
[..]
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
[..]
public class BootUpReceiver extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent) {
Intent i = new Intent(context, MyActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
Related
I found many topic but no case fit for my question.
The first my app working smooth, it is always startup with device by code bellow:
In AndroidManifest:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
and receiver:
<!-- start when module start broadcast -->
<receiver android:name=".StartOnBoot"
android:exported="true">
<intent-filter >
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<!-- listen messenger received -->
<receiver
android:name=".Phone.SmsListener"
android:exported="true">
<intent-filter android:priority="1000">
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
And class StartOnBoot
public class StartOnBoot extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)){
Intent serviceIntent = new Intent(context, MainActivity.class);
serviceIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(serviceIntent);
}
} }
And now I added 2 broadcast to listen state of SD card and SIM card. But when I finish, My app can not start when my device restarted. And I don't know, where is problem, nothing clue.
<!-- broad cast SDCard receive-->
<receiver android:name=".Peripheral.SDCardListener">
<intent-filter>
<action android:name="android.intent.action.MEDIA_EJECT" />
<action android:name="android.intent.action.MEDIA_MOUNTED" />
<data android:scheme="file" />
</intent-filter>
</receiver>
<receiver android:name=".Phone.SimCardReceiver">
<intent-filter>
<action android:name="android.intent.action.SIM_STATE_CHANGED"/>
</intent-filter>
</receiver>
And 2 classes receiver:
public class SDCardListener extends BroadcastReceiver {
//restart app when SD card mounted
#Override
public void onReceive(Context context, Intent intent) {
Log.d("TAG","SDcard state : " + intent.getAction());
if (intent.getAction().equals(Intent.ACTION_MEDIA_EJECT)){
//sdcard eject
}else if (intent.getAction().equals(Intent.ACTION_MEDIA_MOUNTED)){
SDCard.getInstance().SDCardMounted();
}
}
}
for sim state:
public class SimCardReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.d("TAG", "Sim state :" + intent.getAction());
}
}
My device target is only Android 7.1, SDK lv 25.
Some methods I tried but not work:
I removed SimCardReceiver
I added "android:priortity to StartBoot" like this:
<intent-filter android:priority="1000">
But still not working, Remember, my app always work without 2 broadcast SDCardListener and SimCardReceiver
Extra question:
How many broadcast are available to use in one app. How many is good ? one or not limit
Could I merge all receiver to one broadcast
my program extends From BroadCastReciever to set Alarm, after the device is reboot receiver is not called, this is my code
1- BroadcastReceiver
public class myReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction()!=null) {
if (intent.getAction().equalsIgnoreCase("android.intent.action.BOOT_COMPLETED")) {
Log.d("myActivity","repooted");
// alarm settings
}
}
}
2-xml
<receiver
android:name=".sync.myReceiver"
android:enabled="true"
android:exported="true"
>
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
<action android:name="android.intent.action.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE" />
</intent-filter>
</receiver>
In your AndroidManifest.xml have you added permission to receive boot complete?
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
I have a several devices (Minix X68-i) all running the same firmware and software versions.
On some of them my boot receiver works fine, others it rarely works, and a few it's closer to 50-50 whether they will receive the event.
I'm out of ideas as to what could cause the code to work so erratically, other than potentially faulty hardware.
Manifest:
<receiver android:enabled="true" android:exported="true"
android:name="com.proreception.displaymanagement.Receiver.BootReceiver"
android:label="StartMyActivity" >
<intent-filter android:priority="500" >
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
BootReceiver
public class BootReceiver extends BroadcastReceiver {
private static final String TAG = "BootReceiver";
#Override
public void onReceive(Context context, Intent intent) {
if (Intent.ACTION_BOOT_COMPLETED.equals(intent.getAction()) && constants.ONBOOT) {
Intent i = new Intent(context, FullscreenActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Log.d(TAG, "Starting Application");
context.startActivity(i);
}
}
}
I want to start an activity even before screen lock after rebooting. here is my code
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.DISABLE_KEYGUARD" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.bootservicestartup.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=".BootUpReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</receiver>
</application>
public class BootUpReceiver extends BroadcastReceiver {
#SuppressLint("InlinedApi")
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Intent i = new Intent(context, MainActivity.class);
i.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
what the code does is when the phone is rebooted, an activity will be shown. that works. but I also want the activity to be shown even before showing the screen lock.
Hope this helps you if you did it as a service;
You need the following in your AndroidManifest.xml file:
1) In your element:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
2) In your element (be sure to use a fully-qualified [or relative] class name for your BroadcastReceiver):
<receiver android:name="com.example.MyBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
(you don't need the android:enabled, exported, etc., attributes... the Android defaults are correct)
In MyBroadcastReceiver.java:
package com.example;
public class MyBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Intent startServiceIntent = new Intent(context, MyService.class);
context.startService(startServiceIntent);
}
}
I am using broadcast receivers for performing some action when the device is switched off and switched on again,but they are not working.These are the receivers in manifest file:
<receiver android:name=".ShutdownReceiver" >
<intent-filter>
<action android:name="android.intent.action.ACTION_SHUTDOWN" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.QUICKBOOT_POWEROFF" />
</intent-filter>
</receiver>
<receiver android:name=".RestartReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
These are the corresponding classes:
public class ShutdownReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
Log.d("In","Switched Off");
}
}
public class RestartReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
SecureMessagesActivity.ToDoOnMobileSwitchOn();
Log.d("In","Switched On");
}
}
Please help me.Thanks in advance.
Be sure to request the RECEIVE_BOOT_COMPLETED permission in your manifest:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>