Android One app activity invokes another app's activity

Learned the call of activity between two applications , and method calls between two applications (implemented using aidl )

Two applications are as follows : from application, to application ( from activity Call to application activity)

Implementation method:

1. Declare the activity of the to application to be invoked in the from manifest file

<application android:allowbackup= "true" android:icon= "@drawable/ic_launcher "Android:label=" @string/app_name "android:theme=" @style/apptheme "> <activity Andro                Id:name= "com.example.from.MainActivity" android:label= "@string/app_name" > <intent-filter> <action android:name= "Android.intent.action.MAIN"/> <category android:name= "Androi D.intent.category.launcher "/> </intent-filter> </activity> <activity android:n Ame= "Com.example.to.ToActivity" > <intent-filter> <action android:name= "Android.inte Nt.action.VIEW "> </action> <category android:name=" Android.intent.category.DEFA ULT "> </category> </intent-filter> </activity> </application& gt; 

2. The code that is called in the activity is as follows

             ComponentName componetname = new ComponentName (  //This is another application's package name  "Com.example.to",  //This parameter is the activity to start  "com.example.to.ToActivity");  try {  Intent Intent = new Intent ();  Intent.setaction ("Android.intent.action.VIEW");//bundle bundle = new Bundle ();//bundle.putcharsequencearray ("Val", New string[]{"111", "222", "333", "444"});//intent.putextras (bundle);//Bind bundle data//intent.setcomponent ( Componetname); StartActivity (intent);  } catch (Exception e) {toast.maketext (Getapplicationcontext (), "You can prompt the user not to find the application, or to do other things! ", 0). Show ();  LOG.V ("Go to apk Error", "------>" +e.tostring ());}  

Since we are calling the to application from the From app, we also need to set the properties for the activity to be called in the to application, as follows:

  <activity android:name= "com.example.to.ToActivity"            android:exported= "true" >               </activity>

Android One app activity invokes another app's activity