Android Interview Summary

First, the choice question

2. Android's four main layouts: LinearLayout, Tablelayout, Framelayout, Relativelayout.
4. The four components of Android: Activity,service Service, content provider contents provider, Broadcastreceiver broadcast receiver.
6. reader and Writer in the Java.io installation package are used primarily for reading and writing objects (Obeject).
8. The service implementation methods in Android are StartService () and Bindservice ().
10. Activity typically overloads 7 methods to maintain its lifetime, in addition to onCreate (), OnStart (), Ondestory () , Onrestart, Onresume, OnPause, OnStop .
12. Android's data is stored in sharedpreferences,SQLite,contentprovider , and File.
14. When an activity is started and a new activity execution completes, the callback function that returns the activity that initiates it is Startactivityresult.

Ii. Question and answer questions

/****************************************************************************************

Please wait until you are done!

****************************************************************************************/

Android Interview Summary