Android Question [SOLVED] Open an app, intent error

[pazzokli]

Hi, I cannot open an installed app using intent and package name

Sub OpenApp (applicazione As String)
    Dim i As Intent
    Dim p As PackageManager
    i.Initialize("", "")
    i = p.GetApplicationIntent("com.miui.calculator")
    If i.IsInitialized Then StartActivity(i)
    StartActivity(i)
End Sub

This is log error

main_openapp (java line: 4829)
java.lang.RuntimeException: Object should first be initialized (Intent).
    at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:67)
    at com.domos.client.main._openapp(main.java:4829)
    at com.domos.client.main._btn_camera1_click(main.java:1591)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:197)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
    at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:80)
    at android.view.View.performClick(View.java:7548)
    at android.view.View.performClickInternal(View.java:7525)
    at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
    at android.view.View$PerformClick.run(View.java:29568)
    at android.os.Handler.handleCallback(Handler.java:942)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loopOnce(Looper.java:210)
    at android.os.Looper.loop(Looper.java:299)
    at android.app.ActivityThread.main(ActivityThread.java:8244)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:559)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:954)

 

[Alex_197]

https://www.b4x.com/android/forum/threads/calculator-intent.94392/

 

[pazzokli]

https://www.b4x.com/android/forum/threads/calculator-intent.94392/

Hi Alex, thanks for replay but my problem Is not package name. Calculator Is only an example.
Problem Is that Say me intent not initialized but I don't know how do it

 

[agraham]

See this post here. You might need a <queries> manifest entry

open apps installed in your phone from my app

hello everyone, I would like to create an app for elderly people where within this app through icons you can open for example facebook, whatsapp, calendar etc, so I need to understand how to open phone apps from my app even externally by leaving mine app, can anyone tell me how to do it?

www.b4x.com

Also there shouldn't be two StartActivity calls in the code. The one in the check is sufficient.

 

[pazzokli]

See this post here. You might need a <queries> manifest entry

open apps installed in your phone from my app

hello everyone, I would like to create an app for elderly people where within this app through icons you can open for example facebook, whatsapp, calendar etc, so I need to understand how to open phone apps from my app even externally by leaving mine app, can anyone tell me how to do it?

www.b4x.com

Also there shouldn't be two StartActivity calls in the code. The one in the check is sufficient.

I solved with this line in the manifest

AddManifestText(<uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"/>)