I'm trying to create a widget for my application . I want it to be like this :
The user selects my widget among all widgets then a listview appears the user selects on of the items and the widget in that category (which is introduced in the application) will show up
But when choosing the Widget "forceClose" happens . I attach my codes
Thanks for your help
public class WidgetConfig extends ListActivity implements OnItemClickListener {
AppWidgetManager awm;
Context c;
int awID;
public String LS [] = {"C", "B", "A"};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.id.listviewfirstshow);
setListAdapter(new ArrayAdapter<String>(this,R.layout.widget_config , LS));
ListView lv = (ListView)findViewById(R.id.listviewfirstshow);
lv.setOnItemClickListener(this);
Intent i = getIntent();
Bundle extras = i.getExtras();
if (extras != null) {
awID = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,
AppWidgetManager.INVALID_APPWIDGET_ID);
}
else {
finish ();
}
awm = AppWidgetManager.getInstance(c);
}
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
RemoteViews rv = new RemoteViews(c.getPackageName() R.layout.widget);
Intent in = new Intent(c, WidgetLearn2Activity.class);
PendingIntent pi = PendingIntent.getActivity(c, 0, in, 0);
rv.setOnClickPendingIntent(arg2, pi);
awm.updateAppWidget(awID, rv);
Intent result = new Intent();
result.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, awID);
setResult(RESULT_OK, result);
finish();
}
}
and the manifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="learn.widget" android:versionCode="1" android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<application android:icon="#drawable/ic_launcher" android:label="#string/app_name" >
<activity android:name=".WidgetLearn2Activity" 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=".PointlessWidget" >
<intent-filter >
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data android:name="android.appwidget.provider" android:resource="#xml/widget_stuff" />
</receiver>
<activity android:name=".WidgetConfig" android:label="#string/app_name">
<intent-filter >
<action android:name="android.appwidget.action.APPWIDGET_CONFIGURE"/>
</intent-filter>
</activity>
</application>
</manifest>
Related
I am developing android application which need auto restart when restart device for that I am using broadcast receiver with action BOOT_COMPLETED.
Broadcast receiver is receiving message when I am restarting device but in restart method I want to start main activity for that I used Intent but in onReceive method of receiver I am getting null context so I am unable to restart main Activity.
Below is code for that.
MainActivity.java
private Object activity;
private TextView tvImeiNum;
private BroadcastReceiver rebootreceiver;
private IntentFilter filter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tvImeiNum = (TextView)findViewById(R.id.tv_imeinum);
filter = new IntentFilter();
filter.addAction(Intent.ACTION_BOOT_COMPLETED);
filter.addAction(Intent.ACTION_REBOOT);
rebootreceiver = new BootUpReceiver(MainActivity.this);
LocalBroadcastManager.getInstance(this).registerReceiver(rebootreceiver,
filter);//registering receiver
generateUniqueCode();
}
BootupReceiver.java
public class BootUpReceiver extends BroadcastReceiver {
MainActivity ma;
public BootUpReceiver(MainActivity maContext){
ma=maContext;
}
public BootUpReceiver(){
}
#RequiresApi(api = Build.VERSION_CODES.M)
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {
Log.d("TAG REBOOT", "onReceive: " + intent);
Log.d("Reboot complete", "connection");
GlobalTool.restartApplication(context);
}
}
}
GlobalTool.java
public class GlobalTool {
#RequiresApi(api = Build.VERSION_CODES.M)
public static void restartApplication(Context context) {
Log.d("IN App restart:", "");
Log.d("TAG", "restartApplication: ");
if(context != null)
{
Log.d("TAG NULL", "restartApplication: ");
Intent mainIntent = new Intent(context, MainActivity.class);
AlarmManager alarmMgr = (AlarmManager)
context.getSystemService(ALARM_SERVICE);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addNextIntent(mainIntent);
PendingIntent pendingIntent = stackBuilder.getPendingIntent(0,
PendingIntent.FLAG_UPDATE_CURRENT);
long alarmTime = System.currentTimeMillis() + (1 * 1000);
alarmMgr.setExact(AlarmManager.RTC_WAKEUP, alarmTime, pendingIntent);
Log.d("TAG", "restartApplication: 111");
Log.d("TAG", "restartApplication: 111");
}
else {
Intent mainIntent = new Intent(context, MainActivity.class);
AlarmManager alarmMgr = (AlarmManager)
context.getSystemService(ALARM_SERVICE);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addNextIntent(mainIntent);
PendingIntent pendingIntent = stackBuilder.getPendingIntent(0,
PendingIntent.FLAG_UPDATE_CURRENT);
long alarmTime = System.currentTimeMillis() + (1 * 1000);
alarmMgr.setExact(AlarmManager.RTC_WAKEUP, alarmTime, pendingIntent);
Log.d("TAG", "restartApplication: 111");
Log.d("TAG", "restartApplication: 111");
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.kioskappdemo">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission
android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:name="KioskApplication"
android:allowBackup="true"
android:dataExtractionRules="#xml/data_extraction_rules"
android:fullBackupContent="#xml/backup_rules"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.KioskAppDemo"
tools:targetApi="31"
tools:ignore="Instantiatable">
<service
android:name=".RebootService"
android:enabled="true"
android:exported="true"></service>
<activity
android:name=".MainActivity"
android:exported="true"
android:screenOrientation="landscape"
android:theme="#style/Theme.AppCompat.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name=".Activity.BootUpReceiver"
android:enabled="true"
android:exported="true">
<intent-filter >
<action
android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.REBOOT" />
<action
android:name="android.intent.action.QUICKBOOT_POWERON" />
<action android:name="com.reboot.test" />
<action
android:name="android.intent.action.TIMEZONE_CHANGED" />
<action
android:name="android.intent.action.DATE_CHANGED" />
</intent-filter>
</receiver>
</application>
</manifest>
Some you code improvements:
Don't put context to Brodcast Receiver constructor. Use the Context from onReceive method
public class BootUpReceiver extends BroadcastReceiver {
public BootUpReceiver(){
//TODO log
}
...
You should not use LocalBroadcastManager::registerReceiver call. If Broadcast receiver is added to AndroidManifest then it will be started by the system.
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<receiver
android:name=".activity.BootUpReceiver"
android:enabled="true"
android:exported="true"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
<intent-filter >
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
Don't use CamelCase for package names (use .activity.BootUpReceiver insetad .Activity.BootUpReceiver)
I have the AlarmMainActivity which broadcasts an intent at a time set by the alarm. And the receiver program AlarmReceiver should catch this intent and send a notification. From the log, I can see that the alarm is being set, but the receiver doesn't start and its not working. Can you look at my code below and please let me know why the BroadcastReceiver is not working. Thanks.
AlarmMainActivity:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_alarm_main);
Intent alertIntent = new Intent(this, AlarmReceiver.class);
final PendingIntent pendingIntent =
PendingIntent.getBroadcast
(this,1,alertIntent,PendingIntent.FLAG_UPDATE_CURRENT);
final Button alarmButton = (Button)findViewById(R.id.alarm_button);
alarmButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Long alertTime = new
GregorianCalendar().getTimeInMillis()+5*1000;
Log.i(TAG,"Alarm will be sent at : "+ alertTime.toString());
AlarmManager am =
(AlarmManager)getSystemService(Context.ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP,alertTime,pendingIntent );
Log.i(TAG, "Alarm is now set");
}
});
}//oncreate
AlarmReceiver:
public class AlarmReceiver extends BroadcastReceiver{
private static final String TAG = "AlarmReceiver";
private String msgTitle, msgText, msgTicker;
#Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "Entered AlarmReceiver()");
msgTitle = "Todays Weather";
msgText = "Its Sunny and Warm";
msgTicker="Alert";
PendingIntent notifyIntent = PendingIntent.getActivity(context,0, new
Intent(context, AlarmMainActivity.class),0);
NotificationCompat.Builder mBuilder = new
NotificationCompat.Builder(context).
setSmallIcon(R.drawable.weather_image).
setTicker(msgTicker).
setContentTitle(msgTitle).
setContentText(msgText).
setDefaults(NotificationCompat.DEFAULT_SOUND).
setAutoCancel(true).
setContentIntent(notifyIntent);
NotificationManager notificationManager =
(NotificationManager)context.getSystemService
(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1,mBuilder.build());
Log.i(TAG,"Notification Sent");
}
AndroidManifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.thirdlaw.alertalarm" >
<uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme"
android:debuggable="true">
<activity
android:name=".AlarmMainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<receiver android:name="com.thirdlaw.alertalarm.AlarmReceiver">
<intent-filter>
<action android:name="MY_ACTION_STRING"/>
</intent-filter>
</receiver>
</activity>
</application>
</manifest>
Remove the <receiver /> tag out of the <activity /> tag like :
<activity
android:name=".AlarmMainActivity"
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.thirdlaw.alertalarm.AlarmReceiver">
<intent-filter>
<action android:name="MY_ACTION_STRING"/>
</intent-filter>
</receiver>
I am creating a Jigsaw Puzzle application in android. I have created two activites, activity_jigsaw.xml and activity_level.xml. One activity is created by default (Displaying Hello World!) which I modified and created a new activity by following these steps:
File -> New -> Other -> Android Activity
But when I install the application these two files (and all other activities of the application) are installed as a separate project. But at the same time they are also interlinked. The Java code of the files as follows:
Jisaw.java file contains:
public class Jigsaw extends Activity {
Intent intent;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_jigsaw);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_jigsaw, menu);
return true;
}
public void play(View v)
{
try
{
intent = new Intent(this, Level.class);
startActivity(intent);
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
Here Play is a function which is called when an image is clicked.
Level.java file contains:
public class Level extends Activity {
Intent intent;
String level = "";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_level);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_level, menu);
return true;
}
public void easy(View v)
{
level = "easy";
intent = new Intent(this, Play.class);
intent.putExtra("level", level);
startActivity(intent);
}
public void medium(View v)
{
level = "medium";
intent = new Intent(this, Play.class);
intent.putExtra("level", level);
startActivity(intent);
}
public void hard(View v)
{
level = "hard";
intent = new Intent(this, Play.class);
intent.putExtra("level", level);
startActivity(intent);
}
}
Functions easy, medium and hard are called when a corresponding image is clicked.
Can somebody please tell me that what I am doing wrong?
Thanks in advance..
Here is the manifest file:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.maju.jigsawpuzzle"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.SET_WALLPAPER" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".Jigsaw"
android:label="#string/title_activity_jigsaw" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Level"
android:label="#string/title_activity_level" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Play"
android:label="#string/title_activity_play" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".PlayBoard"
android:label="#string/title_activity_play_board" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
You probably are defining android.intent.category.LAUNCHER intent category to all the activities in your AndroidManifest.xml, it creates an icon in the app launcher. Activities other than main should not have this intent filter.
Do something like this:
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity android:name=".JigSaw" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Level" />
<activity android:name=".Play" />
<activity android:name=".Playboard" />
</application>
EDIT:
As you just posted, you are indeed doing that, just remove the intent filter from other activities.
So i have this activity :
public class settings_dock extends Activity {
AlertDialog alert;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.settings);
//Weather settings
ListView listView = (ListView) findViewById(R.id.settings);
String[] values = new String[] { "Enable/Disable","Configure Item 1","Configure Item 2","Configure Item 3","Configure Item 4"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, values);
// Assign adapter to ListView
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if(position == 0)
{
final CharSequence[] items = {"Enabled", "Disabled"};
AlertDialog.Builder builder = new AlertDialog.Builder(settings_dock.this);
builder.setTitle("The Dock is ....");
SharedPreferences dock = app.getContext().getSharedPreferences("dock",app.getContext().MODE_WORLD_READABLE);
builder.setSingleChoiceItems(items,dock.getInt("enabled_disabled",-1), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
SharedPreferences dock = app.getContext().getSharedPreferences("dock",app.getContext().MODE_WORLD_READABLE);
SharedPreferences.Editor prefsEditor = dock.edit();
prefsEditor.putInt("enabled_disabled",item);
prefsEditor.commit();
alert.dismiss();
if(item == 0)
{
}
if(item == 1)
{
}
}
});
alert = builder.create();
alert.show();
}
if(position == 1)
{
Intent in=new Intent(settings_dock.this,set_dock.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("dock_location",1);
}
if(position == 2)
{
Intent in=new Intent(settings_dock.this,set_dock.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("dock_location",2);
}
if(position == 3)
{
Intent in=new Intent(settings_dock.this,set_dock.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("dock_location",3);
}
if(position == 4)
{
Intent in=new Intent(settings_dock.this,set_dock.class);
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra("dock_location",4);
}
}
});
}
}
and I am trying to launch a intent as you can see
but simplay nothing happens not even a error in logcat
The intent to launch is lusted in my manifest
I am realy puzzeld right now :(
m
edit :
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"/>
<uses-permission android:name="android.permission.DISABLE_KEYGUARD"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".app"
android:label="#string/app_name"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen"
android:excludeFromRecents="true"
android:clearTaskOnLaunch="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="boot">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
<category android:name="android.intent.category.HOME" />
</intent-filter>
</receiver>
<service
android:name="lockservice"
android:process=":lockscreen"
android:icon="#drawable/ic_launcher"
android:label="Lockscreen">
</service>
<activity
android:name=".weather_update"
android:theme="#android:style/Theme.Translucent">
</activity>
<activity
android:name=".restart_service"
android:theme="#android:style/Theme.Translucent">
</activity>
<activity
android:name=".settings">
</activity>
<activity
android:name=".settings_weather">
</activity>
<activity
android:name=".settings_general">
</activity>
<activity
android:name=".settings_dock">
</activity>
<activity
android:name=".settings_personalisation">
</activity>
<activity
android:name=".set_dock"
android:theme="#android:style/Theme.Dialog"
android:screenOrientation="portrait">
</activity>
</application>
</manifest>
You haven't called:
startActivity(in);
Hopefully this helps.
Try adding startActivity(in) in each of the if statement. To start an activity you need to call startActivity(intent) method.
I have 2 activities with a few buttons etc. I want to start new activity. I have done everything the tutorial said, but the 2nd activity does not start!
case R.id.btnIstorija:
Intent i = new Intent (this,KlasaPrikazBaze.class);
startActivity(i);
break;
It should start my 2nd activity
public class KlasaPrikazBaze extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.prikazbaze);
TextView TV = (TextView)findViewById(R.id.tvSQLinfo);
KlasaBaze info = new KlasaBaze(this);
info.open();
String podatak = info.DohvatiPodatak();
info.close();
}
}
However nothing happens.
Manifest:
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:label="#string/app_name"
android:name=".TalentiFinalActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".KlasaPrikazBaze"></activity>
</application>