ajustes do post e campos para o envio para a api

android/app/build.gradle

@@ -44,7 +44,7 @@ android {
         applicationId = "com.ab.rkm.rkm"
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
-        minSdk = flutter.minSdkVersion
+        minSdk = 24
         targetSdk = flutter.targetSdkVersion
         versionCode = flutterVersionCode.toInteger()
         versionName = flutterVersionName
@@ -61,6 +61,16 @@ android {
 
     buildTypes {
         release {
+            minifyEnabled true
+            shrinkResources false
+            lintOptions {
+                disable 'InvalidPackage'
+                disable "Instantiatable"
+                checkReleaseBuilds false
+                abortOnError false
+
+            }
+            signingConfig signingConfigs.debug
             signingConfig signingConfigs.release
         }
     }
@@ -69,3 +79,6 @@ android {
 flutter {
     source = "../.."
 }
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}