I'm trying to make an application that when a toggle button is on starts a broadcast that check if battery low and disable wifi. Instead when the toggle is off starts another broadcast and the wifi starts. The problem is that the application crashes when i press the button. this is the code for the toggle and wifi:
public void getToggle(View view) {
// Is the toggle on?
boolean on = ((ToggleButton) view).isChecked();
if (on) {
PackageManager pm = getPackageManager();
ComponentName compName =
new ComponentName(getApplicationContext(),
LowBatteryReceiver.class);
pm.setComponentEnabledSetting(
compName,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
} else {
PackageManager pm = getPackageManager();
ComponentName compName =
new ComponentName(getApplicationContext(),
LowBatteryReceiver.class);
pm.setComponentEnabledSetting(
compName,
PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
}
}
//wifi enable/disable
public class LowBatteryReceiver extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
wifiManager = (WifiManager) MainActivity.this.getSystemService(Context.WIFI_SERVICE);
wifiManager.setWifiEnabled(false);
}
}
public class OkBatteryReceiver extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
wifiManager = (WifiManager) MainActivity.this.getSystemService(Context.WIFI_SERVICE);
wifiManager.setWifiEnabled(true);
}
}
This is the manifest. The receiver are inside <application> and <activity> tags:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mycompany.myapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.UPDATE_DEVICE_STATS" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_SUPERUSER" />
<application
android:allowBackup="true"
android:icon="#drawable/battery"
android:label="#string/app_name" >
<activity
android:label="#string/app_name"
android:name=".MainActivity"
android:theme="#android:style/Theme.Holo.Light">
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name=".LowBatteryReceiver"
android:enabled="false" >
<intent-filter>
<action android:name="android.intent.action.BATTERY_LOW" />
</intent-filter>
</receiver>
<receiver
android:name=".OkBatteryReceiver"
android:enabled="false" >
<intent-filter>
<action android:name="android.intent.action.BATTERY_OKAY" />
</intent-filter>
</receiver>
<activity
android:label="#string/app_name"
android:name=".about"
android:theme="#android:style/Theme.Holo.Light">
</activity>
</application>
How can i resolve? I can't find the error..
edit with logcat:
The reference from your manifest to the Receiver classes are not right. Right now, you reference them like they are a normal class within your package. Since they are inner classes, you should reference them like this (see the android:name attribute):
<receiver
android:name=".MainActivity$OkBatteryReceiver"
android:enabled="false" >
<intent-filter>
<action android:name="android.intent.action.BATTERY_OKAY" />
</intent-filter>
</receiver>
Inner classes are referenced by the $.
Related
I'm trying to call my AlarmReceiver which extends BroadcastReceiver. After I run this code, i can't see any of logs. Could you please help me in this issue. :D
Here's where I try to call AlarmReceiber
public void downloadTweets(Context context) {
ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected()) {
Intent alarmIntent = new Intent(context,AppService.AlarmReceiver.class);
alarmIntent.putExtra(AppService.SCREEN_NAME, ScreenName);
PendingIntent pi = PendingIntent.getBroadcast(context,0,alarmIntent,PendingIntent.FLAG_UPDATE_CURRENT);//getBroadcast(context, 0, i, 0);
AlarmManager am=(AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Log.v(LOG_TAG, "shot");
am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 1, pi);
Log.v(LOG_TAG, "shot finish");
} else {
Log.v(LOG_TAG, "No network connection available.");
}
}
and here's my AlarmReceiver class which is a sub-class of AppService
public static class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.v(LOG_TAG, "AlarmReceiver");
Intent sendIntent = new Intent(context,AppService.class);
sendIntent.putExtra(AppService.SCREEN_NAME,intent.getStringExtra(AppService.SCREEN_NAME));
context.startService(sendIntent);
Log.v(LOG_TAG, "AlarmReceiver done");
}
}
And my manifest has this...
<?xml version="1.0" encoding="utf-8"?>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.nutjane.android.rainalert.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>
</application>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<service android:name=".service.AppService"/>
<receiver android:name=".service.AppService$AlarmReceiver" android:enabled="true"/>
When I run, the log shows only shot and shot finish
Could you please help me solve this issue.
Add:
sendIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in your AlarmReceiver class
Change your manifest file to:
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.nutjane.android.rainalert.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>
<service
android:name=".AppService"
android:enabled="true" />
<receiver android:name=".AlarmReceiver" >
<intent-filter>
<action android:name="myintent" />
</intent-filter>
</receiver>
</application>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
I know there are similar question in statckoverflow, but they just do NOT work for me.
Broadcast receiver(staticly registe via manifest.xml) can NOT receive package_remove event after installing on device (without running main activity)
But the receiver works if main activity is running.
To register broadcastreceiver staticly in AndroidManifest.xml as followings
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.broadcastreceivertesting"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.broadcastreceivertesting.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.example.broadcastreceivertesting.PackageBroadcastReceiver" >
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<data android:scheme="package" />
</intent-filter>
</receiver>
</application>
</manifest>
PackageBroadcastReceiver as a receiver are like following:
public class PackageBroadcastReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
final String action = intent.getAction();
if (Intent.ACTION_PACKAGE_REMOVED.equals(action))
{
File file = new File("/storage/sdcard0/zzz/yyy");
if (file.exists())
{
file.delete();
}
boolean createDir = new File("/storage/sdcard0/zzz/").mkdirs();
Log.d("XXX", "XXXX createDir=" + createDir);
try
{
file.createNewFile();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
}
Do I miss something ?
Try changing this...
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<data android:scheme="package" />
to this...
<intent-filter>
<action android:value="android.intent.action.PACKAGE_REMOVED" />
<scheme android:value="package" />
For more information, see this link on receiving package broadcast intents...
https://groups.google.com/forum/#!topic/android-developers/aX5-fMbdPR8
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);
}
}
When user want to uninstall app from android device, I want user uninstall button click event for that application.
I am getting event of application is removed from device, but I want to show pop-up before application is removed. I am trying to achieve same like doing in 'App Lock' application.
Here is my code to get application removed event through broadcast receiver. But I am totally blank about uninstall button click or before pop-up click. Please guide me in right direction.
Thanks in advance.
public class MainActivity extends Activity {
CustomBroadcastReceiver mApplicationsReceiver;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mApplicationsReceiver=new CustomBroadcastReceiver();
IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
filter.addAction(Intent.ACTION_PACKAGE_ADDED);
filter.addAction(Intent.ACTION_PACKAGE_REPLACED);
filter.addAction(Intent.ACTION_PACKAGE_RESTARTED);
filter.addAction(Intent.ACTION_PACKAGE_VERIFIED);
filter.addAction(Intent.ACTION_PACKAGE_INSTALL);
filter.addAction(Intent.ACTION_PACKAGE_FIRST_LAUNCH);
filter.addAction(Intent.ACTION_DELETE);
filter.addAction(Intent.ACTION_DEFAULT);
filter.addDataScheme("package");
registerReceiver(mApplicationsReceiver, filter);
}
}
public class CustomBroadcastReceiver extends BroadcastReceiver {
/**
* This method captures the event when a package has been removed
*/
#Override
public void onReceive(Context context, Intent intent)
{
System.out.println("Hello from CustomBroadcastReceiver");
if (intent != null) {
String action = intent.getAction();
System.out.println("L1123 : "+action);
if (action.equals(intent.ACTION_PACKAGE_REMOVED)) {
//Log the event capture in the log file ...
System.out.println("The package has been removed");
}
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.bits.uninstallappdemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.BROADCAST_PACKAGE_REMOVED" />
<uses-permission android:name="android.permission.INSTALL_PACKAGES" />
<uses-permission android:name="android.permission.DELETE_PACKAGES" />
<uses-permission android:name="android.permission.BROADCAST_PACKAGE_ADDED" />
<uses-permission android:name="android.permission.BROADCAST_PACKAGE_CHANGED" />
<uses-permission android:name="android.permission.BROADCAST_PACKAGE_INSTALL" />
<uses-permission android:name="android.permission.BROADCAST_PACKAGE_REPLACED" />
<application
android:allowBackup="true"
android:icon="#drawable/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=".CustomBroadcastReceiver" >
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<action android:name="android.intent.action.PACKAGE_ADDED" />
<category android:name="android.intent.category.DEFAULT" />
<action android:name="android.intent.action.PACKAGE_ADDED" />
<action android:name="android.intent.action.PACKAGE_CHANGED" />
<action android:name="android.intent.action.PACKAGE_INSTALL" />
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<action android:name="android.intent.action.PACKAGE_REPLACED" />
</intent-filter>
</receiver> -->
</application>
</manifest>
Please try to get the top activity in the task via ActivityManager, and check if it is the uninstall activity.
Core code:
ComponentName topActivity = mActivityManager.getRunningTasks(1).get(0).topActivity;
String packageName = topActivity.getPackageName();
String className = topActivity.getClassName();
Log.v(TAG, "packageName" + packageName);
Log.v(TAG, "className" + className);
if ("com.android.packageinstaller".equals(packageName)
&& "com.android.packageinstaller.UninstallerActivity".equals(className)) {
//Do anything you want here
}
The following permissions which you are using are granted to system apps only. Make sure you have rooted device to allow such permissions.
<uses-permission android:name="android.permission.BROADCAST_PACKAGE_REMOVED" />
<uses-permission android:name="android.permission.INSTALL_PACKAGES" />
<uses-permission android:name="android.permission.DELETE_PACKAGES" />
How do i set my application as startup application, so when ever mobile restarts or turned ON, my application starts.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.installedapps22"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="8" />
<application android:icon="#drawable/cherry_icon" android:label="#string/app_name">
<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>
<activity android:name=".ListInstalledApps" > </activity>
<activity android:name=".TabsLayoutActivity" />
</application>
</manifest>
EDIT Here is my updated code and it is still not working:
Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.installedapps22"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="8" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application android:icon="#drawable/cherry_icon" android:label="#string/app_name">
<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:enabled="true" android:name="com.app.reciever.BootUpReciever">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
<activity android:name=".ListInstalledApps" > </activity>
<activity android:name=".TabsLayoutActivity" />
</application>
</manifest>
BroadcastReciever:
package com.example.installedapps22;
public class BootUpReciever extends BroadcastReceiver
{
#Override
public void onReceive(final Context context, Intent intent) {
Intent i = new Intent(context, MainActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
This is to set the app as the startup application in your device Create a Class extends BroadCast Reciever
public class BootUpReciever extends BroadcastReceiver
{
#Override
public void onReceive(final Context context, Intent intent) {
Intent i = new Intent(context, ServerPreferenceActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
Add permissions to manifest file to access bootup receiver
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
Register your receiver which extended the Broadcast receiver in manifest.xml
<receiver android:enabled="true" android:name="com.app.reciever.BootUpReciever">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
first use permission in manifiest
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
and declare boot receiver in manifiest
<receiver android:name=".BootReciever">
<intent-filter >
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>
user receiver to start your mainactivity
public class BootReciever extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Intent myIntent = new Intent(context, MainActivity.class);
myIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(myIntent);
}
}
For your edited code try replacing the following:
android:name="com.app.reciever.BootUpReciever
with:
android:name="com.example.installedapps22.BootUpReciever