Android Data storage------2 shared parameters

To better validate the code, we first change the Androidmanifest.xml, add the unit test

1   < Instrumentation 2         Android:name = "Android.test.InstrumentationTestRunner" 3         android:targetpackage= "com.yxh.androidshareprefences01">4     </instrumentation>

and add <uses-library android:name= "Android.test.runner" in <application>/>

1  <Application2         Android:allowbackup= "true"3 Android:icon= "@drawable/ic_launcher"4 Android:label= "@string/app_name"5 Android:theme= "@style/apptheme" >6         <uses-libraryAndroid:name= "Android.test.runner" />

Then make the formal code:
The first step: Write the MySharedPreferences01 class for saving read files

1  Packagecom.yxh.androidshareprefences01;2 3 4 ImportJava.util.HashMap;5 ImportJava.util.Map;6 7 Importandroid.app.Activity;8 ImportAndroid.content.Context;9 Importandroid.content.SharedPreferences;Ten  One  Public classMyShareprefences01 { A     Privatecontext context; -  -     //Construction Method the      PublicMyShareprefences01 (Context context) { -          This. context=context; -          -     } +     //create a method for storing information -      Public Booleansaveshareprefences (String name,string age) { +         Booleanflag=false; A         //Instantiate Sharedpreferences atSharedpreferences share=context.getsharedpreferences ("info", activity.mode_private); -         //call the interface under Sharedpreferences to write -Sharedpreferences.editor editor=Share.edit (); -         //Write Information -Editor.putstring ("name", name); -Editor.putstring ("Age", age); in         //submit information to persist data - editor.commit (); toflag=true; +         returnFlag; -     } the      PublicMap<string, String >readshareprefences () { *         //instantiate a map for receiving information $Map<string, String > map=NewHashmap<string, string>();Panax Notoginseng         //Instantiate Sharedpreferences -Sharedpreferences share=context.getsharedpreferences ("info", activity.mode_private); the         //get information based on key value +String name=share.getstring ("name", "No"); AString age=share.getstring ("Age", "0"); the         //to map the information obtained +Map.put ("name", name); -Map.put ("Age", age); $      $         returnmap; -     } -      the  -}

The second step is to test the code

1  Packagecom.yxh.androidshareprefences01;2 3 ImportJava.util.Map;4 5 Importandroid.app.Activity;6 ImportAndroid.content.Context;7 Importandroid.content.SharedPreferences;8 Importandroid.test.AndroidTestCase;9 ImportAndroid.util.Log;Ten  One  Public classMyTestextendsAndroidtestcase { A     Private StaticString tag= "MyTest"; -  -      PublicMyTest () { the         //TODO auto-generated Constructor stub -     } -     //test data to save data -      Public voidsaveshareprefences () { +Context context=GetContext (); -MyShareprefences01 share=NewMyShareprefences01 (context); +        BooleanFlag=share.saveshareprefences ("Neusoft", "100"); ALOG.I (TAG, "---->>" +flag); at     } -     //test for read Data -      Public voidreadshareprefences () { -Context context=GetContext (); -MyShareprefences01 share=NewMyShareprefences01 (context); -Map<string,string> map=share.readshareprefences (); inLOG.I (TAG, "---->>" +map.tostring ()); -         } to  +}

Test results:

1 10-26 01:55:58.876:i/mytest (3401):---->>true2 10-26 02:02:42.716:i/mytest (5120) :---->>{age=100, Name=neusoft}

Android Data storage------2 shared parameters