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插件 flutter_plugin_android_lifecycle 无法构建

任务 - :compileReleaseJavaWithJavac 失败说:由于错误,无法构建插件 flutter_plugin_android_lifecycle:

error: package androidx.lifecycle does not exist
import androidx.lifecycle.Lifecycle;
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error: cannot find symbol
  public static Lifecycle getActivityLifecycle(
                ^
  symbol:   class Lifecycle
  location: class FlutterLifecycleAdapter
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这是 FlutterLifecycleAdapter.java 文件:

package io.flutter.embedding.engine.plugins.lifecycle;

import androidx.annotation.NonNull;
import androidx.lifecycle.Lifecycle;
import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;

/** Provides a static method for extracting lifecycle objects from Flutter plugin bindings. */
public class FlutterLifecycleAdapter {
  private static final String TAG = "FlutterLifecycleAdapter";

  /**
   * Returns the lifecycle object for the activity a plugin is bound to.
   * …
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java android activity-lifecycle android-lifecycle flutter

6
推荐指数
1
解决办法
1062
查看次数

有没有办法按字符串内的数字对字符串列表进行排序?

有没有一种方法可以对类似的内容进行排序:

List<String> hi = ['1hi', '2hi','5hi', '3hi', '4hi'];
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对此?

['1hi', '2hi','3hi', '4hi', '5hi']
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dart flutter

1
推荐指数
1
解决办法
616
查看次数