前言
Lifecycles，使用生命周期感知型组件处理生命周期，就是说我们使用Lifecycles之后可以监听activity或者fragment的生命周期从而调用我们组件相对应的方法。
1、文档是以位置定位监听为例子
public class MyLocationListenerimplements LifecycleObserver {
@OnLifecycleEvent(Lifecycle.Event.ON_START)
public void onStart(){
Log.e("tenz","MyLocationListener:onStart().......");
//开始获取位置
}
@OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
public void onCreate() {
Log.e("tenz","MyLocationListener:onCreate().......");
}
@OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
public void onResume() {
Log.e("tenz","MyLocationListener:onResume().......");
}
@OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
public void onPause() {
Log.e("tenz","MyLocationListener:onPause().......");
}
@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
public void onStop() {
Log.e("tenz","MyLocationListener:onStop().......");
//释放资源
}
@OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
public void onDestroy() {
Log.e("tenz","MyLocationListener:onDestroy().......");
}
}
public class MainActivityextends AppCompatActivity {
private ActivityMainBindingviewDataBinding;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
viewDataBinding = DataBindingUtil.setContentView(this, R.layout.activity_main);
getLifecycle().addObserver(new MyLocationListener());
Log.e("tenz","activity:onCreate()--------");
}
@Override
protected void onStart() {
super.onStart();
Log.e("tenz","activity:onStart()--------");
}
@Override
protected void onResume() {
super.onResume();
Log.e("tenz","activity:onResume()--------");
}
@Override
protected void onPause() {
super.onPause();
Log.e("tenz","activity:onPause()--------");
}
@Override
protected void onRestart() {
super.onRestart();
Log.e("tenz","activity:onRestart()--------");
}
@Override
protected void onStop() {
super.onStop();
Log.e("tenz","activity:onStop()--------");
}
@Override
protected void onDestroy() {
super.onDestroy();
Log.e("tenz","MyLocationListener:onDestroy()--------");
}
}
1、LifecycleObserver
接口，安卓生命周期观察者，实现这个接口，然后我们通过注解来表明函数在LifeCycleOwner的哪个生命周期的时候执行。
2、LifecycleOwner
接口，安卓生命周期的拥有者，ComponentActivity中已经实现了LifecycleOwner接口。
demo的github地址：TenzMixMaster/tenzlifecycles at master · TenzLiu/TenzMixMaster · GitHub
