Hi guys this is just my first post,
is it possible to access an activity which is in Phone.apk in a non-rooted phone?
I've tried something like this
Intent i = new Intent(Intent.ACTION_MAIN);
i.setClassName("com.android.phone", "com.android.phone.PhoneApp");
startActivity(i);
but my app always stops unexpectedly.
There is no activity named com.android.phone.PhoneApp in the Android firmware, let alone in the Android SDK.
Moreover, you should not be attempting to start activities in the com.android package, as they are not part of the Android SDK and may or may not exist on any given device or Android version.
Related
in App A, i have UI Box. Is it possible to load App B (APK) then load and run it into the UI Box ?
so, its like run App B with frame from App A.
I would say it is not possible to install another application from one application as android made a sandbox for each application and prevent it from touching to other applications.
NOTE: you can invoke an android package installer via Intent.
File apkFullPath = getFileStreamPath("name_of_downloaded_app.apk");
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(apkFullPath), "application/vnd.android.package-archive");
startActivity(intent);
Hope this will help and solve your problem.
You cannot run an apk without instsalling it first. What you can do is start intent for installing it and then use it as you wish.
Read this ans to start intent for installing an apk:
Install apk programmatically
I have three existing apps. Now i want to combine all the three into single app.
Say i have three button, when i click button 1 then app 1 should run. And when
button 2 is clicked app 2 should run. Is it possible in android studio? have
have tried searching but nothing helped.
From this SO start application knowing package name. Just use these two lines you can launch any installed application whose package name is known:
Intent LaunchIntent = getPackageManager().getLaunchIntentForPackage("com.example.abc");
startActivity( LaunchIntent );
for the unknown package name
PackageManager pm;
pm = getPackageManager();
// get a list of installed apps.
packages = pm.getInstalledApplications(0);
I'm going to preface this by saying I do not have any experience with Android Studio. Hopefully it bears some resemblance with its terribly simplified counterpart App Inventor.
Anywho, I would create an independent main screen (activity?) that has 3 buttons on it and paste the three existing apps' code into other screens in the same app. Each button would open its corresponding screen/app through opening a new activity.
Got the solution. I just converted the three applications to library and imported them into the main app. Now i can call any activity from any of the three app any time as required. While using package manage all the three apps would have to be installed separately. Thank you coder and himty for sparing some time to answer my question. But still i have a problem. I am actually working on watch faces. Even though i can launch any activity, i still can't change the watch face. Tried Wallpaper but we can only open the face picker & cannot set the watch face.
ComponentName unique=new ComponentName(MainActivity.this,BlackOwlBlue.class);
Intent i=new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER)
.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT,unique)
.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
Suppose we have an Android APK file which contains only a single BroadcastReceiver.
Will this form of the APK file be installed on Android devices be installed successfully and can the BR receive intended intents? I thought it will, but my experiment showed it does not. I am not sure why, but the installation of such APK files (with a single BR) seems to fail all the time.
A solution to this problem is to add a dummy Activity to the package. Then the installation succeeds, and the BroadcastReceiver can receive all intended intents!
Please share your opinion on this matter.
I always thanks you all for helps!
Will this form of the APK file be installed on Android devices be installed successfully and can the BR receive intended intents?
No.
I am not sure why, but the installation of such APK files (with a single BR) seems to fail all the time.
No, but the BroadcastReceiver will not receive broadcasts until something has directly invoked one of your components via an explicit Intent (i.e., an Intent that identifies the class). Normally, that will happen by the user launching your LAUNCHER activity. This has been the case since Android 3.1, about three years ago (see "Launch controls on stopped applications" in the Android 3.1 release notes).
You need at least one Activity for landing page in the android app. What are you expecting will happen when the app is launched manually?
I am new in android and I have develop an application in android but the issue is when i install it on my device it shows me 2 icons one is working and other one says that receipt organizer has been stopped unexpectedly.Kindly let me know how i can get out of this rid ?Is it some kind of code error or problem in the manifest or properties ?Also one more question now my api level is set to 18 if i set it to previous version then the functionality will not get disturbed right ?So let me know if any one can help.
Look at your manifest file. Your manifest file should have only one activity that has the LAUNCHER in the intent filter.
Choose your main activity (which should have this intent filter), and delete the intent filters from the other activity. after that, you should see only one application icon.
I am launching a third party app (AppC) using startActivity() and getPackageManager().getLaunchIntentForPackage() API:
Intent i = getPackageManager().getLaunchIntentForPackage(packageName);
i.setAction(Intent.ACTION_MAIN);
i.addCategory(Intent.CATEGORY_LAUNCHER);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
and when I return from that app some features of my application stop working until I manually clear data of my application. If I use a different 3rd party app (AppK) - everything works just fine.
Is it possible that AppC does something to my application's data? What could cause such behavior?
Is it possible that AppC does something to my application's data?
Probably not. The author of AppC probably does not know you exist, let alone to exploit any security holes in your app to do "something to [your] application's data".
What could cause such behavior?
Bugs in your app. Bear in mind that your process may terminate after starting this other activity.
AppC was deleting files in the shared (Downloads) folder, which my app relied upon.