public interface SharedPreferences android.content.SharedPreferences Class Overview

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

1、調(diào)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(shù)據(jù)：

mEditor.putBoolean("boolean",?true);
mEditor.putFloat("float",?0.01F);
mEditor.putString("String",?"a?string");

3、調(diào)用commit()將數(shù)據(jù)提交，完成數(shù)據(jù)存儲

mEditor.commit();

存儲和獲取存儲數(shù)據(jù)部分代碼：

Button?mButton?=?(Button)findViewById(R.id.save);
mButton.setOnClickListener(new?OnClickListener(){@Overridepublic?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(){
	@Override
	public?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(xiàn)記住密碼功能:
完整代碼在：https://github.com/HiSunny/ComeOnSharedPreferences.git