橫豎屏切換時(shí)Activity的生命周期

不設(shè)置android:configChanges

切換為橫屏:

8d646bb3-be3b-4216-9c2d-fbc1a5ad2fe8.png

onPause:
onSaveInstanceState:
onStop:
onDestroy:
onCreate:
onStart:
onRestoreInstanceState:
onResume:

切換為豎屏(生命周期同上)

68591f47-6457-4960-bbfb-ebb4b270b911.png

onPause:
onSaveInstanceState:
onStop:
onDestroy:
onCreate:
onStart:
onRestoreInstanceState:
onResume:

清單文件中單獨(dú)設(shè)置:
android:configChanges="orientation"

效果還跟上面一樣

清單文件中設(shè)置:
android:configChanges="orientation|keyboardHidden"

android:configChanges="keyboardHidden|screenSize"

效果還跟上面一樣

清單文件中設(shè)置:

android:configChanges="orientation|screenSize"

android:configChanges="orientation|keyboardHidden|screenSize"

不調(diào)整生命周期

以上數(shù)據(jù)在模擬器4.1,5.0,6.0,7.0測出.

總結(jié):

當(dāng)橫豎屏切換時(shí),會正常的重走一次生命周期的回調(diào)方法:

• onPause:
• onSaveInstanceState:
• onStop:
• onDestroy:

• onCreate:
• onStart:
• onRestoreInstanceState:
• onResume:

如果不想在橫豎屏切換的時(shí)候調(diào)整生命周期,清單文件中配置:
android:configChanges="orientation|screenSize"
就夠了!

33a3731c-6737-408a-a84c-d88943377467.jpg

在沒有配置android:configChanges時(shí),可以在onSaveInstanceState中保存數(shù)據(jù),在onRestoreInstanceState中恢復(fù)數(shù)據(jù).