Android Studio 导入 Eclipse 的代码后，代码中的注释显示乱码问题

看到乱码后，意识到可能是编码方式错了。在 Android Studio 的设置菜单中找到修改编码的地方。如下： 
File > Settings > Editor > File Encodings 里 Project Encoding 改为 GBK，为了统一规范，我也将其它 Encoding 项也设置为 GBK了。

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但运行后，程序中的中文又出现乱码的情况。

在 CSDN 的Andorid 论坛中提问，没有得到想要的答案。见帖子：http://bbs.csdn.net/topics/391818489。最后，还是在网上查找到解决方法，如下：

apply plugin: 'android'  
  
dependencies {  
    compile fileTree(dir: 'libs', include: '*.jar')  
    compile project(':appcompat_v7')  
}  
  
android {  
    compileSdkVersion 10  
    buildToolsVersion "20.0.0"  
    android {compileOptions.encoding = "GBK"}               /////////增加的内容，可以解决部署到设备上汉字显示乱码的问题
  
    compileOptions {  
        sourceCompatibility JavaVersion.VERSION_1_7  
        targetCompatibility JavaVersion.VERSION_1_7  
    }  
  
    sourceSets {  
        main {  
            manifest.srcFile 'AndroidManifest.xml'  
            java.srcDirs = ['src']  
            resources.srcDirs = ['src']  
            aidl.srcDirs = ['src']  
            renderscript.srcDirs = ['src']  
            res.srcDirs = ['res']  
            assets.srcDirs = ['assets']  
        }  
  
        // Move the tests to tests/java, tests/res, etc...  
        instrumentTest.setRoot('tests')  
  
        // Move the build types to build-types/<type>  
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...  
        // This moves them out of them default location under src/<type>/... which would  
        // conflict with src/ being used by the main source set.  
        // Adding new build types or product flavors should be accompanied  
        // by a similar customization.  
        debug.setRoot('build-types/debug')  
        release.setRoot('build-types/release')  
    }  
}