If your app is crashing on startup when runnging a AVD, you should analyse the logcat from ‘View > Tool Windows > Logcat.
In my case, the crash cause was:
Caused by: java.lang.ClassNotFoundException: Didn't find class "br.com.sidroniolima.medo_e_delirio_app.MainActivity"
The problem was at AndroidManifest.xml file.
The activity was pointing to a .MainActivity that is not there. It maybe have been occurred when I configure the flutterfire on project.
The Android Plugin upgrade page shows at the 5th step the following:
Android Plugin update page.
(Optional) If you removed MainActivity.java
, update the <plugin_name>/example/android/app/src/main/AndroidManifest.xml
to use io.flutter.embedding.android.FlutterActivity
. For example:
The solution was replace the old block to the new one. As follows.
<activity
android:name=".MainActivity"
android:launchMode="singleTop"
android:theme="@style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">
<activity
android:name="io.flutter.embedding.android.FlutterActivity"
android:launchMode="singleTop"
android:theme="@style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">