Starting One Android App from Another App

问题

What is the best way to start one android app from another app? Is it to send custom broadcast event and have broadcast receiver of other app catch this event and do a start activity on something? Thanks

回答1:

Use an Intent: http://developer.android.com/guide/topics/intents/intents-filters.html

Use Context.startActivity() to just launch, or Activity.startActivityForResult() if you want to get a result when it's done.

If you are tightly coupled with the other application, you can use an explicit Intent. Otherwise, send an implicit Intent.

回答2:

best way is call by intent like this

http://www.lacherstorfer.at/haris_blog/2008/03/android-howto-invoke-a-phone-c.html

回答3:

Use this:

PackageManager pm = getPackageManager();
try
{
    String packageName = "com.example.package";
    Intent launchIntent = pm.getLaunchIntentForPackage(packageName);
    startActivity(launchIntent);
}
catch (Exception e1)
{
}

来源：https://stackoverflow.com/questions/5281910/starting-one-android-app-from-another-app