open android own launcher from my application

Question

hi Its been 2 days looking for this simple problem. I want to launch Android own launcher from my application EVEN if its not set as default.

   final PackageManager packageManager=getPackageManager();
   Intent intent = packageManager.getLaunchIntentForPackage("com.android.launcher");

this return null for Android own launcher but if I try custom launcher is give me successfully

I'm developing custom home screen, and i want to launch the default home when required, and I'm facing above same issue. — Palani, Dec 29 '11 at 08:32

score 12 · Accepted Answer · answered Dec 29 '11 at 09:42

12

Found the solution, after investigating source code of getLaunchIntentForPackage. As per documentation,

The current implementation will look first for a main activity in the category CATEGORY_INFO, next for a main activity in the category CATEGORY_LAUNCHER, or return null if neither are found.

So, the function don't look for CATEGORY_HOME, i rewrote it in following way, it worked perfectly.

Intent intentToResolve = new Intent(Intent.ACTION_MAIN);
intentToResolve.addCategory(Intent.CATEGORY_HOME);
intentToResolve.setPackage("com.android.launcher");
ResolveInfo ri = getPackageManager().resolveActivity(intentToResolve, 0);
if (ri != null) 
{
    Intent intent = new Intent(intentToResolve);
    intent.setClassName(ri.activityInfo.applicationInfo.packageName, ri.activityInfo.name);
    intent.setAction(Intent.ACTION_MAIN);
    intent.addCategory(Intent.CATEGORY_HOME);
    startActivity(intent);
}

answered Dec 29 '11 at 09:42

Palani

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I tried using the same for "com.android.phone" but for some reason it doesn't work. Any inputs? – 13hsoj Aug 12 '13 at 11:13
this takes me to the home screen instead of the application launcher screen – Mr.Noob Sep 14 '13 at 17:53
I'm having the same issue as @13hsoj where ri is always null – Bruce Dec 02 '13 at 12:49
@Bruce are you trying it for com.android.phone or for com.android.launcher – 13hsoj Dec 02 '13 at 13:41
where should this code be added? can you please mention the class name also? – Akshatha S R Jul 31 '19 at 07:28

score 1 · Answer 2 · answered Dec 15 '11 at 10:47

1

Are you sure the default Google Android Launcher being installed on your device? If not, then it's truly NULL.

answered Dec 15 '11 at 10:47

Pete Houston

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I am trying this on emulator and for mobile I've tried "com.sonyericsson.home" on my Xperia Arc but it give me force close error doesn't even throw any exception. – ZeeShaN AbbAs Dec 15 '11 at 10:50

open android own launcher from my application

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