无法解析符号getCheckedRadioButtonId

Question

我是android的新手，我在java代码中遇到了这个问题

cannot resolve symbol 'getCheckedRadioButtonId'

关于此代码

Bind(R.id.radioGroup) RadioGroup _radioGroup;

    if (_radioGroup.getCheckedRadioButtonId() != -1)
    {

    }

它没有收到getCheckedRadioButtonId。我想从RadioButton检查文本。我该怎么做？

Answer 1

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "com.example.elhez.tammeni"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.3.0'
    compile 'com.android.support:design:23.3.0'
    compile 'com.jakewharton:butterknife:7.0.1'

    compile 'com.google.android.gms:play-services-appindexing:8.1.0'
}