[share] MethodCallHandler.java uses unchecked or unsafe operations (flutter#3004)

Author: hamdikahloun

packages/share/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.6.5+1
+
+* Avoiding uses unchecked or unsafe Object Type Casting
+
 ## 0.6.5
 
 * Added support for sharing files

packages/share/android/build.gradle

@@ -1,5 +1,6 @@
 group 'io.flutter.plugins.share'
 version '1.0-SNAPSHOT'
+def args = ["-Xlint:deprecation","-Xlint:unchecked","-Werror"]
 
 buildscript {
     repositories {
@@ -19,6 +20,10 @@ rootProject.allprojects {
     }
 }
 
+project.getTasks().withType(JavaCompile){
+    options.compilerArgs.addAll(args)
+}
+
 apply plugin: 'com.android.library'
 
 android {

packages/share/android/src/main/java/io/flutter/plugins/share/MethodCallHandler.java

@@ -25,19 +25,21 @@ public void onMethodCall(MethodCall call, MethodChannel.Result result) {
       case "share":
         expectMapArguments(call);
         // Android does not support showing the share sheet at a particular point on screen.
-        share.share((String) call.argument("text"), (String) call.argument("subject"));
+        String text = call.argument("text");
+        String subject = call.argument("subject");
+        share.share(text, subject);
         result.success(null);
         break;
       case "shareFiles":
         expectMapArguments(call);
 
+        List<String> paths = call.argument("paths");
+        List<String> mimeTypes = call.argument("mimeTypes");
+        text = call.argument("text");
+        subject = call.argument("subject");
         // Android does not support showing the share sheet at a particular point on screen.
         try {
-          share.shareFiles(
-              (List<String>) call.argument("paths"),
-              (List<String>) call.argument("mimeTypes"),
-              (String) call.argument("text"),
-              (String) call.argument("subject"));
+          share.shareFiles(paths, mimeTypes, text, subject);
           result.success(null);
         } catch (IOException e) {
           result.error(e.getMessage(), null, null);

packages/share/pubspec.yaml

@@ -5,7 +5,7 @@ homepage: https://github.com/flutter/plugins/tree/master/packages/share
 # 0.6.y+z is compatible with 1.0.0, if you land a breaking change bump
 # the version to 2.0.0.
 # See more details: https://github.com/flutter/flutter/wiki/Package-migration-to-1.0.0
-version: 0.6.5
+version: 0.6.5+1
 
 flutter:
   plugin: