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CRUD MYSQL
Error: Bad state: Insecure HTTP is not allowed by platform:
Just add in android/app/src/main/AndroidManifest.xml:
<uses-permission android:name="android.permission.INTERNET" /> <!-- This Line -->
<application
android:name="io.flutter.app.FlutterApplication"
android:label="receipt"
android:usesCleartextTraffic="true" <!-- This Line -->
android:icon="@mipmap/ic_launcher">