.java代码如下:
package org.lxh.demo; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.content.SharedPreferences; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnFocusChangeListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class Hello extends Activity { private static final String FILENAME="mldn"; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 生命周期方法 super.setContentView(R.layout.main); // 设置要使用的布局管理器 SharedPreferences share=super.getSharedPreferences(FILENAME, Activity.MODE_PRIVATE); SharedPreferences.Editor edit=share.edit(); edit.putString("author", "zhangyayun"); edit.putInt("age", 30); edit.commit(); } }
运行后找到文件:
导出后:
下面利用代码读取该信息:
main.xml代码如下:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/authorinfo" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <TextView android:id="@+id/ageinfo" android:layout_width="fill_parent" android:layout_height="wrap_content"/> </LinearLayout>
.java代码如下:
package org.lxh.demo; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.content.SharedPreferences; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnFocusChangeListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; public class Hello extends Activity { private static final String FILENAME = "mldn"; private TextView authorinfo = null; private TextView ageinfo = null; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 生命周期方法 super.setContentView(R.layout.main); // 设置要使用的布局管理器 this.authorinfo = (TextView) super.findViewById(R.id.authorinfo); this.ageinfo = (TextView) super.findViewById(R.id.ageinfo); SharedPreferences share = super.getSharedPreferences(FILENAME, Activity.MODE_PRIVATE); this.authorinfo.setText("作者:" + share.getString("author", "没有作者信息")); this.ageinfo.setText("年龄" + share.getInt("age", 0)); } }
运行效果如下:
时间: 2024-11-05 18:27:18