Android Question How to start app from web

androidvh · Sep 10, 2014

Hallo,

I like to start my app from a web browser:

I create an Intent Filter to the Manifest Editor

<intent-filter>

- <data android:scheme="http" />
- <data android:host="easyoffer.track9.de/" />
- <action android:name="android.intent.action.VIEW" />
- <category android:name="android.intent.category.BROWSABLE" />
- <category android:name="android.intent.category.DEFAULT" />

</intent-filter>

but nothing happend starting the browser...
only the web side is open.

so the question what is to do ?

Kind regards
Volker

Erel · Sep 10, 2014

Can you post your manifest editor code?

androidvh · Sep 10, 2014

AddManifestText(
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="19"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
'End of default text.

AddApplicationText(

<activity

android:launchMode="singleTask" >
<intent-filter>
<data android:scheme="http" />
<data android:host="easyoffer.track9.de/" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.BROWSABLE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>

)

DonManfred · Sep 10, 2014

androidvh said:
Hallo,

I like to start my app from a web browser:

but nothing happend starting the browser...
only the web side is open.

so the question what is to do ?

With the changes you made you tell the system to open this url with your app. But you did not use an unknown scheme. You are still using http. And, viewing a webpage in a browser (registered for scheme http) and you click on an http-link the link will open in the already opened browser. This is expected.

Is it a webpage from you? You have control over it (the page can only be browsed by an androic-device?

You could use an not used scheme and create your own...

AddActivityText(Main,
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />

<data android:scheme="myapp" android:host="service" />
</intent-filter>
)

This accepts URIs that begin with "myapp://service”
for example in your webpage you have an link like

<a href="myapp://service/">Start Service-App</a>

Your app should be started if you click on "Start Service-App" from within a browser

PS: Hättest Du im deutschen Forum gefragt hättest Du eine deutsche Antwort bekommen

DonManfred · Sep 10, 2014

btw: these will work on win32 too. Just the way "a program register a "new" scheme in the Operatin System" is another than in android. In win32 you need to call windows-sdk-methods... But the principle will work on Windows too. I know; i already did

androidvh · Sep 20, 2014

Problem is solved:

Manifest:

AddActivityText(Main,
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="test" android:host="service" />
</intent-filter>
)

___________________________________
Code:

Dim vh As Intent
vh = Activity.GetStartingIntent

Dim va As String = vh.GetData
If va <> Null Then
If va.StartsWith("test://service/") Then

do something here

end if

_____________________________________

@DonManfred

Danke, und das nächste Mal vielleicht auf Spanisch....

aidymp · Dec 1, 2015

DonManfred said:
btw: these will work on win32 too. Just the way "a program register a "new" scheme in the Operatin System" is another than in android. In win32 you need to call windows-sdk-methods... But the principle will work on Windows too. I know; i already did

Hi @DonManfred could you method for this? I have an android app, that runs from a url, im making the same app in windows and really need this feature!

Thanks

Aidy

DonManfred · Dec 1, 2015

aidymp said:
could you code for this?

https://msdn.microsoft.com/en-us/library/aa767914(v=vs.85).aspx

B4X:

'Delphi Code
procedure Tbekaloader.RegisterProtocol(const Name, Describtion, ExecuteStr: string);
var
  reg: TRegistry;
begin
  reg := TRegistry.Create;
  try
    reg.RootKey := HKEY_CLASSES_ROOT;
    reg.OpenKey(Name, True);
    try
      reg.Writestring('', 'URL:' + Name +' (' + Describtion + ')');
      reg.WriteInteger('EditFlags', 2);
      reg.WriteString('Source Filter', '');
      reg.WriteString('URL Protocol', '');
      reg.OpenKey('shell', True);
      reg.OpenKey('open', True);
      reg.OpenKey('command', True);
      reg.Writestring('', ExecuteStr);
    finally
      reg.CloseKey;
    end;
  finally
    reg.Free;
  end;
end;

'sample use
  RegisterProtocol('BeKa','register protocol BeKa',Application.ExeName + ' %1');

aidymp · Dec 1, 2015

DonManfred said:

https://msdn.microsoft.com/en-us/library/aa767914(v=vs.85).aspx

B4X:

'Delphi Code
procedure Tbekaloader.RegisterProtocol(const Name, Describtion, ExecuteStr: string);
var
  reg: TRegistry;
begin
  reg := TRegistry.Create;
  try
    reg.RootKey := HKEY_CLASSES_ROOT;
    reg.OpenKey(Name, True);
    try
      reg.Writestring('', 'URL:' + Name +' (' + Describtion + ')');
      reg.WriteInteger('EditFlags', 2);
      reg.WriteString('Source Filter', '');
      reg.WriteString('URL Protocol', '');
      reg.OpenKey('shell', True);
      reg.OpenKey('open', True);
      reg.OpenKey('command', True);
      reg.Writestring('', ExecuteStr);
    finally
      reg.CloseKey;
    end;
  finally
    reg.Free;
  end;
end;

'sample use
  RegisterProtocol('BeKa','register protocol BeKa',Application.ExeName + ' %1');

No lol, I was expecting some B4J! lol I can sort of follow it though, writing some keys to the registry

But thank you,

DonManfred · Dec 1, 2015

Maybe this helps?
https://msdn.microsoft.com/en-us/library/windows/desktop/bb266527(v=vs.85).aspx

DonManfred · Dec 1, 2015

aidymp said:
I was expecting some B4J!

Sorry... i have not worked much with b4j... But i know it is as cool as b4a.

When i do coding for windows i always use Delphi (Object Pascal)

aidymp · Dec 1, 2015

DonManfred said:
Maybe this helps?
https://msdn.microsoft.com/en-us/library/windows/desktop/bb266527(v=vs.85).aspx

I know where going very off topic, so last question, does B4J allow writing to the registry?

Thanks

DonManfred · Dec 1, 2015

I dont know, sorry.

aidymp · Dec 2, 2015

DonManfred said:
Sorry... i have not worked much with b4j... But i know it is as cool as b4a.

When i do coding for windows i always use Delphi (Object Pascal)

This explains the lack of great libraries for B4J then!

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