public interface

SharedPreferences

android.content.SharedPreferences

Class Overview

Interface for accessing and modifying preference data returned by getSharedPreferences(String, int).

1、調用SharedPreferences對象的edit()方法獲得SharedPreferences.Editor對象： //Editor android.content.SharedPreferences.edit() SharedPreferences.Editor mEditor = getSharedPreferences("data",MODE_PRIVATE).edit(); 文件名為data，mode為MODE_PRIVATE。 2、向SharedPreferences.Editor對象中添加數據： mEditor.putBoolean("boolean", true); mEditor.putFloat("float", 0.01F); mEditor.putString("String", "a string");3、調用commit()將數據提交，完成數據存儲 mEditor.commit();存儲和獲取存儲數據部分代碼： Button mButton = (Button)findViewById(R.id.save); mButton.setOnClickListener(new OnClickListener(){ <span style="white-space:pre"> </span>@Override <span style="white-space:pre"> </span>public void onClick(View view){//Editor android.content.SharedPreferences.edit()SharedPreferences.Editor mEditor = getSharedPreferences("data",MODE_PRIVATE).edit();mEditor.putBoolean("boolean", true);mEditor.putFloat("float", 0.01F);mEditor.putString("String", "a string");mEditor.commit();}});Button getButton = (Button)findViewById(R.id.get); getButton.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View view){//SharedPreferences android.content.ContextWrapper.getSharedPreferences(String name, int mode)SharedPreferences mSharedPreferences = getSharedPreferences("data",MODE_PRIVATE);boolean boolStr = mSharedPreferences.getBoolean("boolean", false);float floatStr = mSharedPreferences.getFloat("float", 0.0f);String str = mSharedPreferences.getString("String", "str");TextView tv = (TextView)findViewById(R.id.tv);tv.setText(" str is: "+str +"\n"+ " boolean is :"+ boolStr +"\n"+" float is: "+ floatStr );}});


用SharedPreferences實現記住密碼功能:
完整代碼在：https://github.com/HiSunny/ComeOnSharedPreferences.git

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