小编Ism*_*ail的帖子

如何使用导航架构组件 safeargs 将参数传递给对话框片段？下面是我当前的实现

开始片段

val navController = findNavController()
val action =
            QuestionListFragmentDirections.actionQuestionListFragmentToCustomDialogFragment(args.templateFlag)
        navController.navigate(
            action
        )

目的地片段

   args.templateFlage //supposed to return a boolean value 
   //but throws java.lang.IllegalStateException: Fragment QuestionTypeDialogFragment{e8be5e1} 
   (47b305ea-35b2-49e0-b378-d31a08ba9a41) QuestionTypeDialogFragment} has null arguments

我想使用AndroidX库,下面是Butterknife的Gradle设置

app:模块依赖

implementation 'com.jakewharton:butterknife:9.0.0-SNAPSHOT'
 annotationProcessor 'com.jakewharton:butterknife-compiler:9.0.0-SNAPSHOT'

插入

apply plugin: 'com.jakewharton.butterknife'

项目依赖

dependencies {
      classpath 'com.android.tools.build:gradle:3.3.0-alpha09'
      classpath 'com.google.gms:google-services:4.0.1'
      classpath 'com.jakewharton:butterknife-gradle-plugin:9.0.0-SNAPSHOT'
      // NOTE: Do not place your application dependencies here; they belong
      // in the individual module build.gradle files
    }

项目存储库

repositories {
        google()
        mavenCentral()
        maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
        jcenter()
    }

我正在尝试设置我的SettingsFragment，但是

import PreferenceFragmentCompat 没工作。

使用AndroidX可以做到这一点吗？

相依性

implementation 'androidx.preference:preference:1.0.0-rc02'

摇篮飞行

    apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.idealorb.payrollapp"
        minSdkVersion 19
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        android.defaultConfig.vectorDrawables.useSupportLibrary = true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.0.0-rc02'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.google.android.material:material:1.0.0-rc02'
    implementation 'com.google.android.gms:play-services-auth:16.0.0'
    implementation 'com.google.firebase:firebase-auth:16.0.3'
    implementation 'com.google.firebase:firebase-core:16.0.3'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0-rc02'
    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0-rc01'
    implementation 'android.arch.navigation:navigation-fragment:1.0.0-alpha05'
    implementation 'android.arch.navigation:navigation-ui:1.0.0-alpha05'
    implementation 'androidx.preference:preference:1.0.0-rc02'
    testImplementation 'junit:junit:4.12' …