Android ProcessLifecycleOwner 简单

笔记

针对整个应用程序的监听 与Activity 的数量无关
Lifecycle.Event.ON_CREATE 只会被调用一次 Lifecycle.Event.ON_DESTROY 永远不会被调用

具体代码

 package com.cbhx.myapplicationobserver;
import android.util.Log;
import androidx.lifecycle.Lifecycle;
import androidx.lifecycle.LifecycleObserver;
import androidx.lifecycle.OnLifecycleEvent;

/***
 *
 * 创建人：xuqing
 * 创建时间：2022-4-15
 *
 */

public class ApplicationObserver  implements LifecycleObserver {
    private static final String TAG = "ApplicationObserver";
    @OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
    public  void   onCreate(){
        Log.e(TAG, "onCreate: " );
    }


    @OnLifecycleEvent(Lifecycle.Event.ON_START)
    public  void   onStart(){
        Log.e(TAG, "onStart: " );
    }
    @OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
    public  void   onResume(){
        Log.e(TAG, "onResume: " );
    }
    @OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
    public  void   onPause(){
        Log.e(TAG, "onPause: " );
    }
    @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
    public  void   onStop(){
        Log.e(TAG, "onStop: " );
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    public  void   onDestroy(){
        Log.e(TAG, "onDestroy: " );
    }
}

在application 里面添加 myapplicationobserver

package com.cbhx.myapplicationobserver;
import android.app.Application;
import androidx.lifecycle.ProcessLifecycleOwner;

public class MyApplication  extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        ProcessLifecycleOwner.get().getLifecycle().addObserver(new ApplicationObserver());
    }
}

通过 ProcessLifecycleOwner 来管理我们的生命周期的监听 代码变的更加简洁 也比较方便管理 希望文章对各位同学有用