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SharedPreferences 使用
1,获取到SharedPreferences
2,编辑SharedPreferences SharedPreferences.Editor
3,提交 commit()
4,获取get****
package com.example.listactivity; import android.app.Activity; import android.content.SharedPreferences; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class Sharepreferencesc extends Activity { private SharedPreferences _preferences; private SharedPreferences.Editor _edit; private EditText _username; private EditText _password; private Button _submit; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.login); initView(); } public void initView() { _preferences = this.getSharedPreferences("haoju", MODE_PRIVATE); _edit = _preferences.edit(); _username = (EditText)this.findViewById(R.id.username); _password = (EditText)this.findViewById(R.id.password); _submit = (Button)this.findViewById(R.id.submit); _username.setText(_preferences.getString("username", null)); _password.setText(_preferences.getString("password", null)); _submit.setOnClickListener(new onclick()); } class onclick implements OnClickListener{ @Override public void onClick(View v) { _edit.putString("username", _username.getText().toString().trim()); _edit.putString("password", _password.getText().toString().trim()); _edit.commit(); } } }
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