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Merge pull request #210 from Lee20170303/master
#35 #146 第二次作业
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‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903235/Net1414080903235Utils.java

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package edu.hzuapps.androidlabs.homeworks.net1414080903235;
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import android.content.Context;
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import android.content.SharedPreferences;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* Created by Administrator on 2017/4/14.
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*/
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//实现登录功能：登录时保存用户数据到data.xml文件里面去
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public class Net1414080903235Utils {
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public static boolean saveUserInfo(Context context,String number,String password){
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SharedPreferences sp=context.getSharedPreferences("data",Context.MODE_PRIVATE);
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SharedPreferences.Editor edit=sp.edit();
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edit.putString("username",number);
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edit.putString("pwd",password);
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edit.commit();
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return true;
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}
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public static Map<String,String> getUserInfo(Context context){
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SharedPreferences sp=context.getSharedPreferences("data",Context.MODE_PRIVATE);
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String number=sp.getString("number",null);
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String password=sp.getString("password",null);
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Map<String,String> userMap=new HashMap<>();//这里可以通过number找到对应的password
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userMap.put("number",number);
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userMap.put("password",password);
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return userMap;
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}
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}

‎AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903235/Net1414080903235_SignInActivity.java

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package edu.hzuapps.androidlabs.homeworks.net1414080903235;
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import android.app.Activity;
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import android.os.Bundle;
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import android.text.TextUtils;
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import android.util.Log;
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import android.view.View;
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import android.widget.EditText;
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import android.widget.Toast;
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import java.util.Map;
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import Utils.Net1414080903235Utils;
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public class Net1414080903235_SignInActivity extends Activity implements View.OnClickListener {
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private EditText etNumber;
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private EditText etPassword;
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_net1414080903235__signin);
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initView();
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Map<String, String> userInfo = Net1414080903235Utils.getUserInfo(this);
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if (userInfo != null) {
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etNumber.setText(userInfo.get("number"));
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etPassword.setText(userInfo.get("password"));
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}
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}
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private void initView(){
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etNumber=(EditText) findViewById(R.id.et_number);
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etPassword=(EditText) findViewById(R.id.et_password);
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findViewById(R.id.btn_login).setOnClickListener(this);
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}
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@Override
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public void onClick(View v) {
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String number=etNumber.getText().toString().trim();
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String password=etPassword.getText().toString();
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if(TextUtils.isEmpty(number)){
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Toast.makeText(this,"请输入账号",Toast.LENGTH_SHORT).show();
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return;
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}
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if(TextUtils.isEmpty(password)){
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Toast.makeText(this,"请输入密码",Toast.LENGTH_SHORT).show();
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return;
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}
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Toast.makeText(this, "登录成功", Toast.LENGTH_SHORT).show();
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Log.i("MainActivity","记住密码："+number+"，"+password);
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boolean isSaveSuccess=Net1414080903235Utils.saveUserInfo(this,number,password);
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if(isSaveSuccess){
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Toast.makeText(this, "保存成功", Toast.LENGTH_SHORT).show();
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}
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else{
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Toast.makeText(this, "失败", Toast.LENGTH_SHORT).show();
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}
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}
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}
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‎AndroidLabs/app/src/main/res/layout/activity_net1414080903235__signin.xml

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:background="#E6E6E6"
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android:orientation="vertical">
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<ImageView
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android:id="@+id/iv_head"
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android:layout_width="50dp"
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android:layout_height="50dp"
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android:src="@drawable/sodoku"
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android:layout_alignParentRight="true"
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android:layout_alignParentEnd="true"
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android:layout_alignParentLeft="true"
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android:layout_alignParentStart="true"
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android:layout_alignParentTop="true"
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android:layout_above="@+id/layout" />
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<LinearLayout
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android:id="@+id/layout"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:background="#ffffff"
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android:orientation="vertical"
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android:layout_above="@+id/btn_login"
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android:layout_alignParentLeft="true"
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android:layout_alignParentStart="true"
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android:layout_marginBottom="59dp">
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<RelativeLayout
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android:id="@+id/r1_username"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_margin="10dp">
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<TextView
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android:id="@+id/tv_name"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_centerVertical="true"
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android:text="账号"/>
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<EditText
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android:id="@+id/et_number"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_marginLeft="5dp"
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android:layout_toRightOf="@+id/tv_name"
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android:background="@null"/>
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</RelativeLayout>
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<View
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android:layout_width="match_parent"
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android:layout_height="2dp"
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android:background="#E6E6E6"/>
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<RelativeLayout
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android:id="@+id/r1_userpsw"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_margin="10dp">
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<TextView
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android:id="@+id/tv_psw"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:layout_centerVertical="true"
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android:text="密码"/>
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<EditText
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android:id="@+id/et_password"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:inputType="textPassword"
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android:background="@null"
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android:layout_alignTop="@+id/tv_psw"
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android:layout_alignParentLeft="true"
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android:layout_alignParentStart="true" />
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</RelativeLayout>
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</LinearLayout>
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<Button
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android:id="@+id/btn_login"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:background="#3C8DC4"
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android:text="登录"
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android:textColor="#ffffff"
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android:layout_marginBottom="177dp"
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android:layout_alignParentBottom="true"
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android:layout_alignParentLeft="true"
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android:layout_alignParentStart="true" />
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</RelativeLayout>
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‎sh.exe.stackdump

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Stack trace:
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Frame Function Args
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00180308010 0018005CE1E (0018022B830, 0018021DC39, 00180308010, 000FFFFB9F0)
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00180308010 00180046609 (00000000002, 00000000003, 00000000002, 000C0000000)
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00180308010 00180046642 (00000000002, 00180308320, 00180308010, 00000000008)
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00180308010 001800574A2 (00000000000, 000FFFFCC35, 000FFFFCC53, 0018021C3F0)
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000FFFFCCB0 00180057550 (645C655C725C635C, 695C745C6E5C655C, 6D5C2D5C6C5C615C, 675C615C6E5C615C)
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000FFFFCCB0 00180046DD5 (00000000000, 00000000000, 00000000000, 00000000000)
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00000000000 00180045873 (00000000000, 00000000000, 00000000000, 00000000000)
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000FFFFFFF0 00180045924 (00000000000, 00000000000, 00000000000, 00000000000)
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End of stack trace

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