I need to do background calls. I mean, I don't want to show the android call interface when the program makes a call I want to show my own interface, is there any way to do it?
Thank you!
It's not possible at the moment. For phone calls, it will always show the dialer screen.
Though it is not recommended to do, you can achieve that by linking an Activity with the call.
<activity
android:name=".activities.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<!-- open activity when establishing a call -->
<intent-filter>
<action android:name="android.intent.action.CALL_PRIVILEGED" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="tel" />
</intent-filter>
</activity>
Related
I implemented an app using NFC which has URL link. So, When NFC is on, the mobile detects URL and opens my app.
I made it happen like this:
<activity
android:name=".view.main.MainActivity"
android:launchMode="singleTop"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.nfc.action.NDEF_DISCOVERED" />
<action android:name="android.nfc.action.TECH_DISCOVERED" />
<!--<action android:name="android.intent.action.MAIN" />-->
<!--<category android:name="android.intent.category.LAUNCHER" />-->
<category android:name="android.intent.category.DEFAULT" />
<data
android:host="example.com"
android:scheme="http" />
</intent-filter>
<meta-data
android:name="android.nfc.action.TECH_DISCOVERED"
android:resource="#xml/nfc_tech_filter" />
</activity>
However, the problem is, I have many activities and fragments. It works even while I use my application and It keeps open my application on each and every activities and fragments.
I don't want this behaviour. I want it detects URL just out of my application. How can I achieve this behaviour?
make it single task to avoid multiple opening of the activity
android:launchMode="singleTask"
also read this doc maybe help you
this questions has been asked in a similar way like a hundred times, though I still cannot find a proper answer to get my app to work the way I want. Maybe this is not possible which would be a valid answer of course.
I have an activity defined as follows in my app:
<activity
android:name="MyActivity"
android:label="MyActivityLabel"
android:launchMode="singleTask" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<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="MyActivityCustomUrlScheme" />
</intent-filter>
</activity>
When I start my App in the emulator and then open the browser and type a URL like:
MyActivityCustomUrlScheme://mycustomHost.com?someOptions
the only thing happening is that chrome tries googling for it, which is not what I want. If I send myself an SMS with this scheme, the scheme inside is not recognised as such and not clickable :(
I want to do that, because I already have an iOS App in the store, which uses the scheme MyActivityCustomUrlScheme://mycustomHost.com?someOptions and it would be a lot of hazel to change it everywhere, as users get this url send by email or SMS. I'd be really thankful if someone can help me out on this problem.
Try to use definition of host :
<activity android:name="MyActivity"
android:label="MyActivityLabel"
android:launchMode="singleTask">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<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="MyActivityCustomUrlScheme" android:host="mycustomHost.com" />
</intent-filter>
</activity>
Hoping someone can point out my failure here. Ive developed a custom launcher app which I want to replace the home screen. I also want the activity accessible via a custom URL "myapp://launcher.android.com."
I'd love to explain why, but to cut a long story short, the Android Gods demanded that I consolidate two activities (each working fine) into a single Activity.
Can someone check over my manifest file to point out any errors or fields I need to fix? Or even a superior alternative?
<activity
android:name=".KioskLauncher"
android:label="#string/app_name"
android:theme="#android:style/Theme.DeviceDefault.NoActionBar" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.HOME" />
</intent-filter>
<intent-filter>
<data android:scheme="myapp" android:host="kiosk.androiddev.com" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
</intent-filter>
</activity>
You need an extra attribute to be added to the activity tag.
Try adding this to the activity tag:
android:launchMode="singleTask"
Is it possible to intercept app uninstall and make some job? E.g. my app modifies some files of device, so it would be neat before uninstalling just rollback changes made by my app.
Any hints, ideas?
Are you talking about the similar issue
Listen Broadcast Before application uninstall
Then as said you have to use the intent-filter for delete as given in the above link.
<activity
android:name=".UninstallIntentActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<action android:name="android.intent.action.DELETE" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="package" />
</intent-filter>
</activity>
and when you get notified , do whatever you want.
I want to launch my application from web browser in Android using Intent-Filter based on scheme, host in the DATA tag like this.
<activity android:name=".activity.LogoActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".activity.phone.MainActivityPhone" android:configChanges="orientation|keyboard"
android:launchMode="singleTask">
<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="my" android:host="mystore" />
</intent-filter>
</activity>
<activity android:name=".activity.tablet.MainActivityTablet" android:configChanges="orientation|keyboard"
android:launchMode="singleTask">
<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="my" android:host="mystore" />
</intent-filter>
</activity>
As you see, There are two Main Activities for phone and tablet, and in LogoActivity determine which Main Activity will be opened by screen size. But the problem is when user clicks my://mystore link in web browser, there are two choices to launch that MainActivtyPhone and MainActivityTablet.
What I want is there is only one proper intent-filter works for uri my://mystore .
Any help? Thanks.
On the first run of your application, use PackageManager to disable the activity you do not want to use.
Please do not invent custom schemes. Please use HTTP URLs instead:
<data android:scheme="http" android:host="yourdomain.com" android:path="/something/or/another" />
That way, you can actually put a real Web page at http://yourdomain.com/something/or/another, so if somebody gets your link but does not have your app installed, they will see your Web page, instead of getting an error.
Also, please remove android:configChanges, or handle all configuration changes.