android Sharedpreference的例子代码

package com.supo; import android.app.Activity; import android.content.Context; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class preferenceActivity extends Activity implements OnClickListener{ /** Called when the activity is first created. */ EditText text1; EditText text2; Button button1; Button button2; Button button3; SharedPreferences sharedPreferences; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); init(); buttonListener(); } public void init(){ text1 = (EditText)findViewById(R.id.editText1); text2 = (EditText)findViewById(R.id.editText2); button1 = (Button)findViewById(R.id.button1); button2 = (Button)findViewById(R.id.button2); button3 = (Button)findViewById(R.id.button3); } public void buttonListener(){ button1.setOnClickListener(this); button2.setOnClickListener(this); button3.setOnClickListener(this); } @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()){ case R.id.button1: setSharedPreference(); text1.setText("已经输入数据到preference"); text2.setText("已经输入数据到preference"); break; case R.id.button2: text1.setText(""); text2.setText(""); break; case R.id.button3: getSahrePreference(); break; } } //存储sharedpreferences public void setSharedPreference(){ sharedPreferences = getSharedPreferences("itcast", Context.MODE_PRIVATE); Editor editor = sharedPreferences.edit(); editor.putString("username", "我的帐号"); editor.putInt("password", 123456); editor.commit();//提交修改 } //获得sharedpreferences的数据 public void getSahrePreference(){ // SharedPreferences sharedPreferences = getSharedPreferences("itcast", Context.MODE_WORLD_READABLE); String username = sharedPreferences.getString("username", ""); int password = sharedPreferences.getInt("password", 0); String str = String.valueOf(password); text1.setText(username); text2.setText(str); } }