Question

我创建了一个示例flutter插件，并按照AndroidX兼容性文档将插件升级到AndroidX
1.在Android Studio中编辑Android代码
2.使用IDE迁移到AndroidX
3. classpath仍为“ com.android.tools.build:gradle:3.2.0”，手动更改为3.3.0
4. gradle.properties具有

android.enableJetifier=true
android.useAndroidX=true

IDE附加的
5.

testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

已由IDE更改
6.

androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'

已由IDE更改
7.之后，我添加了从图像选择器插件复制的Java类“ ImagePickerFileProvider”，但仍然出现错误“无法解析符号'FileProvider'”

package xxx.flutter_plugin_androidx_test;

import androidx.core.content.FileProvider;

/**
 * Providing a custom {@code FileProvider} prevents manifest {@code <provider>} name collisions.
 *
 * <p>See https://developer.android.com/guide/topics/manifest/provider-element.html for details.
 */
public class ImagePickerFileProvider extends FileProvider {}

Answer 1

我创建一个Android项目并比较build.gradle（模块：app），并将以下行添加到依赖项中

    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.0.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.google.android.material:material:1.0.0'

摘要

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.0.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.google.android.material:material:1.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
}

将带有flutter插件并附加

的build.gradle（Module：your_project_name）进行了比较

dependencies {
    api 'androidx.legacy:legacy-support-v4:1.0.0'
}

摘要

android {
    compileSdkVersion 28

    defaultConfig {
      minSdkVersion 21
      testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    lintOptions {
      disable 'InvalidPackage'
    }
  }

dependencies {
    api 'androidx.legacy:legacy-support-v4:1.0.0'
}

重建项目并重新打开项目

创建示例flutter插件以导入AndroidX并获取错误，无法解析符号“ XXX”

1 个答案: