Android切换主题生命周期流程与onSaveInstanceState和onRestoreInstanceState，Kotlin
import android.os.Bundle
import android.util.Log
import androidx.appcompat.app.AppCompatActivityclass MainActivity : AppCompatActivity() {private val TAG = "fly"private val KEY = "my_key"private var mBundle: Bundle? = nulloverride fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)Log.d(TAG, "onCreate")}override fun onSaveInstanceState(outState: Bundle) {super.onSaveInstanceState(outState)val t = System.currentTimeMillis()outState.putString(KEY, t.toString())Log.d(TAG, "onSaveInstanceState ${t}")}override fun onRestoreInstanceState(savedInstanceState: Bundle) {super.onRestoreInstanceState(savedInstanceState)mBundle = savedInstanceStateLog.d(TAG, "onRestoreInstanceState ${savedInstanceState.getString(KEY)}")}override fun onResume() {super.onResume()Log.d(TAG, "onResume ${mBundle?.getString(KEY)}")}override fun onRestart() {super.onRestart()Log.d(TAG, "onRestart")}override fun onStart() {super.onStart()Log.d(TAG, "onStart")}override fun onPause() {super.onPause()Log.d(TAG, "onPause")}override fun onStop() {super.onStop()Log.d(TAG, "onStop")}override fun onDestroy() {super.onDestroy()Log.d(TAG, "onDestroy")}
}
App启动后，把状态栏下滑出来，点击切换深色主题/暗色模式后的生命周期：
Android Activity生命周期以及onSaveInstanceState、onRestoreInstanceState要点备忘-CSDN博客本文作者：Zhang Phil原文链接：Android Activity生命周期以及onSaveInstanceState、onRestoreInstanceState要点备忘一般的，当Android activity的生命周期进入onPause后，Android系统紧接着就要回调：protected void onSaveInstanceStatehttps://blog.csdn.net/zhangphil/article/details/48155371Android Fragment生命周期图以及Activity与Fragment生命周期对照图-CSDN博客Android Fragment生命周期图以及Activity与Fragment生命周期对照图Android Fragment生命周期图：在Fragment的生命周期中，需要重点关注onCreate、onCreateView、onViewCreated。Android Activity与Fragment生命周期对比图：Activi
https://blog.csdn.net/zhangphil/article/details/49942843
