Fix the NPE when input a wrong package

- The mAppEntry is null when got a wrong package.

Bug: 201950262
Test: manual test
Change-Id: I582ec61d816e6f6c3332e4a21d86fb37f3a4354b

src/com/android/settings/applications/intentpicker/AppLaunchSettings.java

@@ -105,6 +105,11 @@ public class AppLaunchSettings extends AppInfoBase implements
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        if (mAppEntry == null) {
+            Log.w(TAG, "onCreate: mAppEntry is null, please check the reason!!!");
+            getActivity().finish();
+            return;
+        }
         addPreferencesFromResource(R.xml.installed_app_launch_settings);
         mDomainVerificationManager = mContext.getSystemService(DomainVerificationManager.class);
         initUIComponents();