As the HTC ONE M8 is certified for MirrorLink usage, it also has a customized car app, which comes with an activity that allows phone calls while driving.
Is there a way to start this activity from an external application? Is the only way to call this activity if the app or rather that activity has implemented the ACTION_CALL intent?
thanks
Is there a way to start this activity from an external application?
Yes, you can do that with an intent filter, here´s the information:
http://developer.android.com/training/basics/intents/filters.html
but if you only want to open the application, knowing the application package is enough with:
PackageManager pm = getPackageManager();
Intent intent = pm.getLaunchIntentForPackage("your.other.app");
startActivity(intent);
Related
I am developing android app and want to launch Phone app from one of my dashboard screen. But Phone app is merged with contacts app, and when I open it opening contacts app by default,instead it should open Phone app. I have set ,
intent.setClassName( "com.android.contacts", "com.android.contacts.activities.DialtactsActivity") and starting activity, but its opening contacts screen instead of phone.
Can anyone suggest?
I think in most (if not all) Huawei devices the package responsible for the phone app is com.android.phone
From within an activity you can use the following intent to open the dialer:
Intent intent = new Intent(Intent.ACTION_DIAL);
startActivity(intent);
Refering to this post I need to ask something else.
I have an application "A" which download and install another app "B".
I want B to "transfer" data to A and then A will use this data to do work.
I know that we can transfer data with intent.
After installing B app with A, Android provide a choice with "Ok" or "Launch" ; my question is :
Is that possible to pass data from B to A when we click on "Ok"? (So we stay in A app without launching B)
If yes, how? Is that possible to "invisible" launch B? How should I code B to get this comportement?
I know that might be hard to understand, you can try to check my previous draw (here again).
EDIT:
I use this code to launch B installation from A.
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(Environment.getExternalStorageDirectory().toString() + "/downloadedfile.apk"));
Intent.setDataAndType(uri, "application/vnd.android.package-archive");
getApplicationContext().startActivity(intent);
There are many ways to handle this, here is one that (I believe) is quite simple to implement. Since your A app [presumably] knows what it is installing:
App A: Add a BroadcastReceiver to react to the installation, though by default it is off.
Android: BroadcastReceiver on application install / uninstall
App B: Add a Service for background communication.
Note: A Service must be exported to be accessible to other apps via explicit intent, but this creates a security concern, as it is open to all other apps.
When a user of App A clicks to install App B:
Start the BroadcastReceiver with a filter set to detect the install:
stackoverflow...android-broadcastreceiver-on-application-install-uninstall
App A starts the install.
When the BroadcastReceiver detects the package has been added (the package name will be in the received intent,) it can stop the BroadcastReceiver, and can send an explicit Intent naming the Service in AppB. You can pass whatever data you need in the intent.
When the AppB service receives the intent, it can act in any way you'd like.
Service is always created using a non-null Intent, though the 'action' of explicit Intents is null.
Service.onStartCommand() might receive a null Intent if the service was re-created.
I'd fill in more of the code, but I have a day job ;)
Note:
Intent.ACTION_PACKAGE_ADDED called when a package is installed.
Intent.ACTION_PACKAGE_INSTALL was never used, and was deprecated in API 14.
http://developer.android.com/reference/android/content/BroadcastReceiver.html
http://developer.android.com/reference/android/content/Intent.html
I'm trying to start default android wallpaper chooser. I'm using:
Intent intent = new Intent(Intent.ACTION_SET_WALLPAPER);
startActivity(intent);
This code works but it opens app chooser. I want to open "Wallpapers" directly. My minSdkVersion is set to 16.
By "default" you seem to mean the wallpaper app that came with Android OS, rather than other wallpaper apps that the device may have. You can force Android to launch a particular activity by setting the component in the intent.
Intent intent = new Intent(Intent.ACTION_SET_WALLPAPER);
intent.setComponent(...);
startActivity(intent);
However, this is a risky thing to do. If you run this code on a device that doesn't have the wallpaper app that you've specified, then you will get an ActivityNotFoundException.
Do you really need to launch one particular wallpaper app? A central feature of Android is that you say what you want to do, and it finds the app to do it. I don't know what your goal is, but another function that might be helpful is PackageManager.resolveActivity. You can use it to discover, in code, what app would be launched for a particular intent.
http://developer.android.com/reference/android/content/pm/PackageManager.html
Hope this helps.
I am creating an application from which the user can call people. In this application I would like to give the option of using either the phone's dialer or other VOIP applications such as Skype or Lync (which incidentally are both Microsoft software). My only problem is that they don't seem to be registered to listen for android.intent.action.CALL (this gives me the phone), but only for android.intent.action.CALL_PRIVILEGED - via which I cannot reach the phone's dialer (I'm guessing that's the privileged part). I'm developing on a stock Nexus 4 btw.
Is there a pretty way that I can launch my intent and be given the option of both the dialer and also Skype/Lync?
Right now my calling the intent looks like this:
Uri numberUri = Uri.parse("tel:" + number);
final Intent intent = new Intent("android.intent.action.CALL_PRIVILEGED");
intent.setData(numberUri);
mContext.startActivity(intent);
Feel free exchange the contents of the intent for Intent.ACTION_CALL - I'm doing it all the time at the moment.
Sorry Dear this cannot be possible.
I am developing an Answering Machine application.
Basically it has to automatically accept the call, give a voice message and start recording the call.
I have designed an application to automatically answer to calls and another application to record calls. Individually both the apps work fine. But after i merged them the application crashes.
I saw a an example here :Combine 2 android apps. I merged the apps same way but still the application crashes.
How can I properly merge my apps?
Try
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.example.package", "com.example.package.ActivityToStart");
startActivity(intent);
or
PackageManager pm = getPackageManager();
Intent intent = pm.getLaunchIntentForPackage("com.example.package");
startActivity(intent);
to invoke 2 apps. And retrieve files from their default save location.