LifecycleObserver+LifecycleOwner

2022-07-28  本文已影响0人  Android刘东
//改文章只是为了记录 
//改文章只是为了记录 
//改文章只是为了记录 
//用法:

    private val myLifecycleObserver : MyLifecycleObserver  by lazy {
        MyLifecycleObserver (lifecycleOwner: LifecycleOwner?
        /**如果是Activity或Fragment直接this*/
        /**如果是Activity或Fragment直接this*/
        )
    }
 class MyLifecycleObserver (lifecycleOwner: LifecycleOwner?): LifecycleObserver {
 @OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
    fun onPause() {
        recyclerView?.stop()
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    fun onDestroy() {
        recyclerView?.stop()
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
    fun onResume() {
        if (data.isNotEmpty()) {
            recyclerView?.start()
        }
    }
  init {
        lifecycleOwner?.lifecycle?.addObserver(this)
}
}

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