Question

在Flutter中实施alarm_manager时出错。遵循alarm_manager插件的自述文件，但它给我一个错误错误PlatformException（错误，AlarmManager错误：未设置PluginRegistrantCallback。你忘了打电话吗 AlarmService.setPluginRegistrant？有关说明，请参见自述文件空）

Androidmanifest.xml file;
<code>
<application
        tools:replace="android:label"
        android:name="io.flutter.app.FlutterApplication"
        android:label="xx"
        android:icon="@mipmap/ic_launcher">
        ...
</application>


Application.java;

package com.app.demoapp;

import io.flutter.app.FlutterApplication;
import io.flutter.plugin.common.PluginRegistry;
import io.flutter.plugin.common.PluginRegistry.PluginRegistrantCallback;
import io.flutter.plugins.GeneratedPluginRegistrant;
import io.flutter.plugins.androidalarmmanager.AlarmService;
public class Application extends FlutterApplication implements PluginRegistrantCallback {
  @Override
  public void onCreate() {
    super.onCreate();
    AlarmService.setPluginRegistrant(this);
  }

  @Override
  public void registerWith(PluginRegistry registry) {
    GeneratedPluginRegistrant.registerWith(registry);
  }
}
Mainactivity.java;


package com.app.demoapp;

import android.os.Bundle;
import io.flutter.app.FlutterActivity;
import io.flutter.plugins.GeneratedPluginRegistrant;


public class MainActivity extends FlutterActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    GeneratedPluginRegistrant.registerWith(this);
  }
}

Answer 1

有时热重载和热重启不会注册新添加的插件。尝试停止并运行。如果不起作用，请运行flutter clean然后再次运行

在flutter中实施alarm_manager时出错

1 个答案: