Open another application from your own intent

Question

I know how to update my own programs  and I know how to open programs using the a predefined Uri  for sms or email for example   I need to know how I can create an Intent to open MyTracks or any other application that I don t know what intents they listen to   I got this info from DDMS  but I havn t been succesful in turning this to an Intent I can use  This is taken from when opening MyTracks manually   Thanks for your help  05-06 11 22 24 945  INFO ActivityManager 76   Starting activity  Intent   act android intent action MAIN cat  android intent category LAUNCHER  flg 0x10200000 cmp com google android maps mytracks com google android apps mytracks MyTracks bnds  243 338  317 417    05-06 11 22 25 005  INFO ActivityManager 76   Start proc com google android maps mytracks for activity com google android maps mytracks com google android apps mytracks MyTracks  pid 1176 uid 10063 gids  3003  1015  05-06 11 22 26 995  INFO ActivityManager 76   Displayed activity com google android maps mytracks com google android apps mytracks MyTracks  1996 ms  total 1996 ms

User · Answer

If you already have the package name you wish to activate, you can use the following code which is a bit more generic:

PackageManager pm = context.getPackageManager();
Intent appStartIntent = pm.getLaunchIntentForPackage(appPackageName);
if (null != appStartIntent)
{
    context.startActivity(appStartIntent);
}

I found that it works better for cases where the main activity was not found by the regular method of start the MAIN activity.

User · Answer

If you re attempting to start a SERVICE rather than activity  this worked for me   Intent intent   new Intent    intent setClassName  com example otherapplication    com example otherapplication ServiceName    context startService intent     If you use the intent setComponent      method as mentioned in other answers  you may get an  Implicit intents with startService are not safe  warning

User · Answer

This is the code of my solution base on MasterGaurav solution   private void  launchComponent String packageName  String name       Intent launch intent   new Intent  android intent action MAIN        launch intent addCategory  android intent category LAUNCHER        launch intent setComponent new ComponentName packageName  name        launch intent setFlags Intent FLAG ACTIVITY NEW TASK        activity startActivity launch intent      public void startApplication String application name       try          Intent intent   new Intent  android intent action MAIN            intent addCategory  android intent category LAUNCHER             intent addFlags Intent FLAG ACTIVITY NO ANIMATION           List lt ResolveInfo gt  resolveinfo list   activity getPackageManager   queryIntentActivities intent  0            for ResolveInfo info resolveinfo list               if info activityInfo packageName equalsIgnoreCase application name                    launchComponent info activityInfo packageName  info activityInfo name                   break                                    catch  ActivityNotFoundException e            Toast makeText activity getApplicationContext     There was a problem loading the application    application name Toast LENGTH SHORT  show

User · Answer

Use this        PackageManager pm   getPackageManager        Intent intent   pm getLaunchIntentForPackage  com package name        startActivity intent

User · Answer

Alternatively you can also open the intent from your app in the other app with   Intent intent   new Intent Intent ACTION VIEW  uri   intent setFlags Intent FLAG ACTIVITY NEW TASK   startActivity intent     where uri is the deeplink to the other app

User · Answer

I have work it like this       Open another app      param context current Context  like Activity  App  or Service     param packageName the full package name of the app to open     return true if likely successful  false if unsuccessful     public static boolean openApp Context context  String packageName        PackageManager manager   context getPackageManager        try           Intent i   manager getLaunchIntentForPackage packageName           if  i    null                return false                throw new ActivityNotFoundException                      i addCategory Intent CATEGORY LAUNCHER           context startActivity i           return true        catch  ActivityNotFoundException e            return false            Example usage   openApp this   com google android maps mytracks      Hope it helps someone

User · Answer

Open application if it is exist  or open Play Store application for install it   private void open         openApplication getActivity     com app package here       public void openApplication Context context  String packageN        Intent i   context getPackageManager   getLaunchIntentForPackage packageN       if  i    null            i addCategory Intent CATEGORY LAUNCHER           context startActivity i         else           try               context startActivity new Intent Intent ACTION VIEW  Uri parse  market   details id     packageN                       catch  android content ActivityNotFoundException anfe                context startActivity new Intent Intent ACTION VIEW  Uri parse  http   play google com store apps details id     packageN

User · Answer

For API level 3   nothing more then one line of code    Intent intent   context getPackageManager   getLaunchIntentForPackage  name of package      Return a CATEGORY INFO launch Intent  apps with no launcher activity  wallpapers for example  often use this to provide some information about app  and  if no find it  returns the CATEGORY LAUNCH of package  if exists

User · Answer

Use following   String packagename    com example app   startActivity getPackageManager   getLaunchIntentForPackage packagename

User · Answer

You can use this command to find the package names installed on a device   adb shell pm list packages -3 -f   Reference  http   www aftvnews com how-to-determine-the-package-name-of-an-android-app

User · Answer

Since applications aren t allowed to change many of the phone settings  you can open a settings activity just like another application   Look at you LogCat output after you actually modified the setting manually   INFO ActivityManager 1306   Starting activity  Intent   act android intent action MAIN cmp com android settings  DevelopmentSettings   from pid 1924   Then use this to display the settings page from your app   String SettingsPage    com android settings  DevelopmentSettings    try   Intent intent   new Intent Intent ACTION MAIN                intent setComponent ComponentName unflattenFromString SettingsPage                 intent addCategory Intent CATEGORY LAUNCHER                 startActivity intent      catch  ActivityNotFoundException e     log it

User · Answer

Try this code  Hope this will help you  If this package is available then this will open the app or else open the play store for downloads      String  packageN    aman4india com pincodedirectory                Intent i   getPackageManager   getLaunchIntentForPackage packageN               if  i    null                    i addCategory Intent CATEGORY LAUNCHER                   startActivity i                 else                   try                       startActivity new Intent Intent ACTION VIEW  Uri parse  market   details id     packageN                                       catch  android content ActivityNotFoundException anfe                        startActivity new Intent Intent ACTION VIEW  Uri parse  http   play google com store apps details id     packageN

User · Answer

To Start another application activity from my application Activity  It is working fine for me   Below code will work if the another application already installed in your phone otherwise it is not possible to redirect form one app to another app So make sure your app launched or not  Intent intent   new Intent    intent setClassName  com xyz myapplication    com xyz myapplication SplashScreenActivity    startActivity intent

User · Answer

Launch an application from another application on Android    Intent launchIntent   getActivity getPackageManager   getLaunchIntentForPackage  com ionicframework uengage            startActivity launchIntent

User · Answer

If you want to open another application and it is not installed you can send it to the Google App Store to download   First create the openOtherApp method for example  public static boolean openOtherApp Context context  String packageName        PackageManager manager   context getPackageManager         try           Intent intent   manager getLaunchIntentForPackage packageName           if  intent    null                  the app is not installed             try                   intent   new Intent Intent ACTION VIEW                   intent addFlags Intent FLAG ACTIVITY NEW TASK                   intent setData Uri parse  market   details id     packageName                    context startActivity intent                 catch  ActivityNotFoundException e                      throw new ActivityNotFoundException                    return false                                     intent addCategory Intent CATEGORY LAUNCHER            context startActivity intent            return true        catch  ActivityNotFoundException e            return false              2 - Usage  openOtherApp getApplicationContext     com packageappname

User · Answer

Intent intent   new Intent Intent ACTION MAIN       intent setComponent ComponentName unflattenFromString  com google android maps mytracks com google android apps mytracks MyTracks         intent addCategory Intent CATEGORY LAUNCHER       startActivity intent     EDIT     as suggested in comments  add one line before startActivity intent    intent setFlags Intent FLAG ACTIVITY NEW TASK

User · Answer

Firstly  the concept of  application  in Android is slightly an extended one   An application - technically a process - can have multiple activities  services  content providers and or broadcast listeners  If at least one of them is running  the application is up and running  the process    So  what you have to identify is how do you want to  start the application    Ok    here s what you can try out    Create an intent with action MAIN and category LAUNCHER Get the PackageManager from the current context using context getPackageManager packageManager queryIntentActivity  lt intent gt   0  where intent has category LAUNCHER  action MAIN or packageManager resolveActivity  lt intent gt   0  to get the first activity with main launcher Get theActivityInfo you re interested in From the ActivityInfo  get the packageName and name Finally  create another intent with with category LAUNCHER  action MAIN  componentName   new ComponentName packageName  name  and setFlags Intent FLAG ACTIVITY NEW TASK  Finally  context startActivity newIntent

User · Answer

Intent intent   new Intent Intent ACTION MAIN           intent setComponent new ComponentName  package name   package name class name             intent putExtra  grace    Hi            startActivity intent

User · Answer

Using the solution from inversus  I expanded the snippet with a function  that will be called when the desired application is not installed at the moment  So it works like  Run application by package name  If not found  open Android market - Google play for this package   public void startApplication String packageName        try               Intent intent   new Intent  android intent action MAIN            intent addCategory  android intent category LAUNCHER             intent addFlags Intent FLAG ACTIVITY NO ANIMATION           List lt ResolveInfo gt  resolveInfoList   getPackageManager   queryIntentActivities intent  0            for ResolveInfo info   resolveInfoList              if info activityInfo packageName equalsIgnoreCase packageName                                 launchComponent info activityInfo packageName  info activityInfo name                   return                            No match  so application is not installed         showInMarket packageName             catch  Exception e                 showInMarket packageName            private void launchComponent String packageName  String name        Intent intent   new Intent  android intent action MAIN        intent addCategory  android intent category LAUNCHER        intent setComponent new ComponentName packageName  name        intent setFlags Intent FLAG ACTIVITY NEW TASK        startActivity intent      private void showInMarket String packageName        Intent intent   new Intent Intent ACTION VIEW  Uri parse  market   details id     packageName        intent setFlags Intent FLAG ACTIVITY NEW TASK       startActivity intent       And it is used like this   startApplication  org teepee bazant

User · Answer

This works on Android Lollipop 5 0 2  public static boolean launchApp Context context  String packageName         final PackageManager manager   context getPackageManager        final Intent appLauncherIntent   new Intent Intent ACTION MAIN       appLauncherIntent addCategory Intent CATEGORY LAUNCHER        List lt ResolveInfo gt  resolveInfos   manager queryIntentActivities appLauncherIntent  0       if   null    resolveInfos   amp  amp    resolveInfos isEmpty               for  ResolveInfo rInfo   resolveInfos                String className   rInfo activityInfo name trim                String targetPackageName   rInfo activityInfo packageName trim                Log d  AppsLauncher    Class Name       className     Target Package Name       targetPackageName     Package Name       packageName               if  packageName trim   equals targetPackageName                     Intent intent   new Intent                    intent setClassName targetPackageName  className                   intent setFlags Intent FLAG ACTIVITY NEW TASK                   context startActivity intent                   Log d  AppsLauncher    Launching Package      packageName      with Activity      className                         return true                                    return false

[android] Open another application from your own (intent)

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