Android(安卓)Shareperferences使用
16lz
2021-12-04
package com.yaku.SharedPreferences;import com.yaku.test.R;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.Toast;/** * SharedPerferences的使用 * @author Administrator */public class ShareActivity extends Activity {private EditText name;private EditText age;private Button sure;private Button recover;private Button clear;protected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.sharedperference);name = (EditText)findViewById(R.id.name);age = (EditText)findViewById(R.id.age);sure = (Button)findViewById(R.id.sure);recover = (Button)findViewById(R.id.recover);clear = (Button)findViewById(R.id.clear);//保存信息到yaku.xml文件sure.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {String nameStr = name.getText().toString();String ageStr = age.getText().toString();if(!"".equals(nameStr)&&nameStr!=null && !"".equals(ageStr)&&ageStr!=null){SharedPreferences perferences = getSharedPreferences("yaku", Context.MODE_PRIVATE);Editor edit = perferences.edit();edit.putString("name", nameStr);edit.putInt("age", Integer.parseInt(ageStr));edit.commit();Toast.makeText(ShareActivity.this, "OK", 0).show();}}});//恢复保存的数据recover.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {SharedPreferences preference = getSharedPreferences("yaku", Context.MODE_PRIVATE);String nameStr = preference.getString("name", "");//如果取不到值就取值后面的参数int ageStr = preference.getInt("age", 0);name.setText(nameStr);age.setText(String.valueOf(ageStr));}});//清除数据clear.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {name.setText(null);age.setText(null);}});}}更多相关文章
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