I try to write app which can start when usb connect
I learn from Starting my android application automatically after connecting the USB cable.
my code is
package com.example.formatsdcard;
import java.io.File;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class MainActivity extends Activity {
public class OnPowerReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Intent i = new Intent(context, MainActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button mButton01 = (Button)findViewById(R.id.button1);
mButton01.setOnClickListener(new Button.OnClickListener()
{
public void onClick(View v)
{
wipeMemoryCard();
}
});
MY Manifest is
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.formatsdcard"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.intent.action.ACTION_POWER_CONNECTED"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.formatsdcard.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=".OnPowerReceiver">
<intent-filter>
<action android:name="android.intent.action.ACTION_POWER_CONNECTED" />
</intent-filter>
</receiver>
</application>
my app can run after I click it but it will show there're some problem try again later when I connect my usb cable.
How should I change my code to let it work normally.
You should probably try
<receiver android:name="MainActivity$OnPowerReceiver">
<intent-filter>
<action android:name="android.intent.action.ACTION_POWER_CONNECTED" />
</intent-filter>
</receiver>
Or try putting OnPowerReceiver as a public class in your package com.example.formatsdcard
Create a own class for your onPowerReceiver. Don't put it in your MainActivity.
Related
I just want to launch activity via Secret Code .
Although , there are many solutions available for this problem but none of them worked for me. It seems like BroadcastReceiver is not listening .
I am using Mi4i MIUI 7.
Here's my code. Please Help!!
MainActivity.java
package com.example.jatin.myapplication2;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
I have even tried the below commented code , but that didn't work.
MySecretCodeReceiver.java
package com.example.jatin.myapplication2;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
/**
* Created by Jatin on 05-Aug-16.
*/
public class MySecretCodeReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals("android.provider.Telephony.SECRET_CODE")) {
String uri = intent.getDataString();
String sep[] = uri.split("://");
if (sep[1].equalsIgnoreCase("1234"))
{
Intent launchIntent = context.getPackageManager().getLaunchIntentForPackage("com.example.jatin.myapplication2.MainActivity");
context.startActivity(launchIntent);
}
else if (sep[1].equalsIgnoreCase("5678")) {
Intent launchIntent = context.getPackageManager().getLaunchIntentForPackage("net.one97.paytm");
context.startActivity(launchIntent);
}
// Intent i = new Intent(context, MainActivity.class);
// i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// setResultData(null);
// context.startActivity(i);
}
}
}
I have also tried putting android:host="1234" in manifest ,still not getting desired results
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"></uses-permission>
<receiver android:name="receivers.MySecretCodeReceiver"
android:enabled="true"
android:exported="true"
android:permission="android.permission.PROCESS_OUTGOING_CALLS">
<intent-filter>
<action android:name="android.provider.Telephony.SECRET_CODE" />
<data android:scheme="android_secret_code" />
</intent-filter>
</receiver>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Got it ....
We have to register our MySecretCodeReceiver as a <receiver> within the <application> element in the AndroidManifest.xml file.
And , Its Done. :)
I've tried:
This which doesn't work on my phone:
Trying to start a service on boot on Android
This which also fails to work properly:
http://www.compiletimeerror.com/2014/12/android-autostart-app-after-boot-with.html#.VpL6sxWLTIU
And a few others which I couldn't find again. Could someone please post a working example of code which will start a MainActivity with the default HelloWorld xml layout?
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<receiver android:name=".MyBroadcastReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<activity
android:name=".MyService"
android:label="#string/title_activity_my_service" >
</activity>
</application>
</manifest>
package com.example;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class MyBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Intent startServiceIntent = new Intent(context, MyService.class);
context.startService(startServiceIntent);
}
}
package com.example;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class MyService extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_service);
}
}
First：create a BroadcastReceiver, onReceive(Context context, Intent intent)，start the app you want to startup in this method
public class BootBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
xxx.class is the app you want to start
Intent service = new Intent(context,XXXclass);
context.startService(service);
Log.v("TAG", "you want to startup this app.....");
Intent intent = getPackageManager().getLaunchIntentForPackage(packageName);
context.startActivity(intent );
} }
Secondly:configure receiver and intent-filter
<receiver android:name="BootBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"></action>
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</receiver>
THirdly,add permission
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
I am testing the following app on HTC with Android 2.3.5. For some reason app is not launching on restarting or booting the phone.
I need to know where am I wrong exactly?
BootReciever.java
import android.os.Bundle;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.view.Menu;
import android.widget.Toast;
public class BootupReceiver extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "App started", Toast.LENGTH_LONG).show();
/*
Intent startActivityIntent = new Intent(context, MainActivity.class);
startActivityIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(startActivityIntent);
*/
// context.startActivity(new Intent(context, MainActivity.class));
}
}
MainActivity.java
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.view.Menu;
import android.content.BroadcastReceiver;
import android.widget.Toast;
import android.content.Intent;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
Android Manifest File:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.androidbootreciever"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.hello_android_world.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
</intent-filter>
</activity>
<receiver android:name="com.example.androidbootreciever.BootupReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
</application>
</manifest>
The code is working on restart but not on turning on the phone after shutting it down. Here are the messages that I receive in my logcat:
You extended BootupReceiver with Activity?
It should be extended with Broadcast Receiver.
public class BootupReceiver extends BroadcastReceiver{
}
Your Receiver:
public class AutoStartBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent receivedIntent) {
context.startActivity(new Intent(context, YourActivity.class));
}
}
Your Manifest:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<receiver android:name="com.example.receiver.AutoStartBroadcastReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
Good luck!
You need to write following permission,
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
If your application is stored on External storage then you should provide following intent filter,
<receiver android:name=".BootupReceiver">
<intent-filter>
<action android:name="android.intent.action.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
See App Install Location.
I am using the Device Policy Manager to lock the android phone immediately and here is my activity code:
package com.husam.admin;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.app.admin.DeviceAdminReceiver;
import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
public class AdminActivity extends Activity {
/** Called when the activity is first created. */
protected static final int REQUEST_CODE_ENABLE_ADMIN=1;
DevicePolicyManager dpm;
ComponentName mAdminName;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
dpm=(DevicePolicyManager)getSystemService(Context.DEVICE_POLICY_SERVICE);
mAdminName=new ComponentName(this,MyAdmin.class);
Button button=(Button)findViewById(R.id.admin);
button.setOnClickListener(new OnClickListener(){
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(dpm.isAdminActive(mAdminName))
{
Log.w("Yes admin","Locking Now");
dpm.lockNow();
}
else
{Intent intent1 =new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
intent1.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, mAdminName);
intent1.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "Need new Admin");
Log.w("no Admin","Set admin");
startActivityForResult(intent1,REQUEST_CODE_ENABLE_ADMIN);
}
}
});
}
class MyAdmin extends DeviceAdminReceiver{
void OnEnabled(){
}
void onDisable(){
}
}
}
and My Mainfest.xml fill is as follow:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.husam.admin"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="15" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".AdminActivity"
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=".MyAdmin"
android:label="#string/device_admin"
android:permission="android.permission.BIND_DEVICE_ADMIN">
<meta-data android:name="android.app.device_admin"
android:resource="#xml/my_admin"/>
<intent-filter>
<action android:name="android.app.action.DEVICE_ADMIN_ENABLED"/>
</intent-filter>
</receiver>
</application>
</manifest>
and my_admin.xml which is inside xml folder under res folder is as follows:
<device-admin xmlns:android="http://schemas.android.com/apk/res/android">
<uses-policies>
<force-lock />
</uses-policies>
</device-admin>
and when I run my app I faced an error in my Log file state that:
W/DeviceAdminAdd(433): Unable to retrieve device policy ComponentInfo{com.husam.admin/com.husam.admin.AdminActivity$MyAdmin}
I searched this website for similar issued but all what I found is that the error was in the mainfest file in closing the receiver before including the meat and intent filter inside it which is not as my case.
So any help or redirection to solve this issue will be completely appreciated
regards
Husam
I think I figured out the answer to the question I posted above. What I need to do is that in registering my receiver in my mainfest file I have to do the following:
<receiver
android:name=".AdminActivity$MyAdmin"
android:permission="android.permission.BIND_DEVICE_ADMIN">
<meta-data android:name="android.app.device_admin"
android:resource="#xml/my_admin"/>
<intent-filter>
<action android:name="android.app.action.DEVICE_ADMIN_ENABLED"/>
</intent-filter>
</receiver>
Note:
in android:name I have to write .AdminActivity$Myadmin instead of .Myadmin, since my class for administration broadcast receiver is an inner class in my activity, not a separate one.
My app for some reason fails the first time it opens, but then opens fine the second time I click on it. Are there any common reasons this happens?
Here is the code for the main activity, any information would be greatly appreciated:
package com.chich;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.telephony.gsm.SmsManager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class chich_activity extends Activity
{
Button btnSendSMS;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ComponentName locationReceiver = new ComponentName(this, SmsReceiver.class);
PackageManager pm = getPackageManager();
pm.setComponentEnabledSetting(locationReceiver,
PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 0);
btnSendSMS = (Button) findViewById(R.id.btnSendSMS);
btnSendSMS.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Intent i = new Intent(chich_activity.this, chich_activity2.class);
startActivity(i);
}
});
}
}
Manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.chich"
android:versionCode="1"
android:versionName="1.0.0">
<application android:icon="#drawable/ic_launcher" android:label="#string/app_name">
<activity android:name=".chich_activity"
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=".chich_activity2"
android:label="#string/app_name">
<intent-filter>
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".SmsReceiver">
<intent-filter android:priority="9999999" >
<action android:name = "android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
</application>
<uses-permission android:name="android.permission.SEND_SMS">
</uses-permission>
<uses-permission android:name="android.permission.RECEIVE_SMS">
</uses-permission>
</manifest>
The answer came in the package manager. Turns out it shuts the application off if you don't write in the end, PackageManager.DONT_KILL_APP as in:
ComponentName locationReceiver = new ComponentName(this, SmsReceiver.class);
PackageManager pm = getPackageManager();
pm.setComponentEnabledSetting(locationReceiver,
PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
Try to leave only one activity as launcher. Remove this row <category android:name="android.intent.category.LAUNCHER" /> from here
<activity android:name=".chich_activity2"
android:label="#string/app_name">
<intent-filter>
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
I had same issue, is not the best way but work for me!
switch(estado) {
case 0:
if (!tcursor.moveToFirst()){
estado = 1;
Intent intentConfig=new Intent(getApplicationContext(),Configuracion.class);
startActivity(intentConfig);
}
break;
default:
}