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For example, I want to start Gmail in code/command line, but I don't know its main activity name.
am start -n com.google.android.gm/.XXXXX
It's available through decompiling the apk, but it's difficult.
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This example demonstrates How to get current activity name in android. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 2 − Add the following code to res/layout/activity_main. xml.
Typically, one activity in an app is specified as the main activity, which is the first screen to appear when the user launches the app. Each activity can then start another activity in order to perform different actions.
Yes, you can change the name of MainActivity by, opening the directory of the java file in android studio, right-click on it and find refactor, then rename, put in the name you like then click on refactor.
An activity represents a single screen with a user interface just like window or frame of Java. Android activity is the subclass of ContextThemeWrapper class. The Activity class defines the following call backs i.e. events. You don't need to implement all the callbacks methods.
You can find an app's package name in the URL of your app's Google Play Store listing. For example, the URL of an app page is play.google.com/store/apps/details? id=com.
This can be found in the application's manifest.
The main activity is the activity with the intent-filter whose name is android.intent.action.MAIN.
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Just go to Android package n open Android Manifest File n check out this activity element
<activity>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
</activity>
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