1. 豎屏切橫屏
啓動時
onCreate–onstart–onresume
切換後
onpause–onSaveInstanceState–onstop–onDestroy–onCreate–onStart–onResume
2. 切換後臺(home 鍵切後臺)
切換到後臺時
onPause–onSaveInstanceState–onStop
從後臺切換回來
onRestart–onStart–onResume
3. 點擊 menu 鍵
想切換程序時但是還沒切換時,已經執行方法
onPause–onSaveInstanceState–onStop
仍然選擇本應用,會執行:
onRestart–onStart–onResume
4. 應用之間地切換跟 (2. 切換後臺) 週期一模一樣
5. 點擊 menu 鍵,刪除應用進程
onPause--onSaveInstanceState--onStop--onDestroy