完善注册登录，增加查看信息

app/src/main/AndroidManifest.xml

@@ -9,7 +9,6 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-
         <activity
             android:name=".activity.activity.GoodsActivity"
             android:exported="false" />
@@ -22,7 +21,7 @@
         </activity>
         <activity android:name=".activity.activity.RegisterActivity" />
         <activity android:name=".activity.activity.UserActivity" />
-
+        <activity android:name=".activity.activity.UserMessageActivity" />
     </application>
 
 </manifest>

app/src/main/java/com/example/Cat/activity/activity/MainActivity.java

@@ -53,16 +53,18 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
                 break;
         }
     }
+
+    //验证密码是否正确
     public void Verification(){
         //UserInfo info;
         Intent intent = new Intent(MainActivity.this, UserActivity.class);
+        intent.putExtra("username",usernameText.getText().toString());
         User_Database user=new User_Database(MainActivity.this);
         SQLiteDatabase sqLiteDatabase=user.getReadableDatabase();
-        list=user.queryByname(sqLiteDatabase,usernameText.getText().toString());
+        list=user.queryByName(sqLiteDatabase,usernameText.getText().toString());
         //info=list.get(0);
         if(paswdEdit.getText().toString().equals(list.get(0).paswd)){
             startActivity(intent);
-
         }
         else{
             Toast.makeText(this, "密码错误！", Toast.LENGTH_SHORT).show();

app/src/main/java/com/example/Cat/activity/activity/RegisterActivity.java

@@ -127,8 +127,15 @@ public class RegisterActivity extends AppCompatActivity implements View.OnClickL
                     //调用数据库操作类的插入方法
                     us_db=new User_Database(RegisterActivity.this);
                     SQLiteDatabase sqLiteDatabase=us_db.getWritableDatabase();
-                    us_db.adddata(sqLiteDatabase,username,password,sexStr,city);
+                    String res=us_db.addData(sqLiteDatabase,username,password,sexStr,city);
-                    startActivity(intent);
+                    String msg = "";
+                    //根据创建结果返回来判断下一步操作
+                    switch (res){
+                        case "repeat":msg="用户名已存在";break;
+                        case "false":msg="注册失败";break;
+                        case "success":msg="注册成功";startActivity(intent);break;
+                    }
+                    Toast.makeText(RegisterActivity.this, msg, Toast.LENGTH_SHORT).show();
                 } else {
                     Toast.makeText(RegisterActivity.this, "请选择地址", Toast.LENGTH_SHORT).show();
                 }

app/src/main/java/com/example/Cat/activity/activity/UserActivity.java

@@ -14,8 +14,9 @@ import com.example.Cat.R;
 
 public class UserActivity extends Activity implements View.OnClickListener{
     private ImageView userIconImage;
-    private TextView usernameText, userSexText, userCityText;
+    public String username;
-    private LinearLayout usernameLine, userSexline, userCityLine, userPayLine, userSettingLine, userGeneralLine,userProductLine;
+    private TextView usernameText;
+    private LinearLayout usernameLine, userSettingLine,userProductLine;
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
@@ -30,17 +31,12 @@ public class UserActivity extends Activity implements View.OnClickListener{
     private void init() {
         userIconImage = findViewById(R.id.user_icon);
         usernameText = findViewById(R.id.user_username);
-        userSexText = findViewById(R.id.user_sex);
+        usernameLine = findViewById(R.id.user_userMsg);
-        userCityText = findViewById(R.id.user_city);
-        usernameLine = findViewById(R.id.user_username_line);
-        userSexline = findViewById(R.id.user_sex_line);
-        userCityLine = findViewById(R.id.user_city_line);
-        userPayLine = findViewById(R.id.user_pay);
         userSettingLine = findViewById(R.id.user_setting);
-        userGeneralLine = findViewById(R.id.user_general);
         userProductLine = findViewById(R.id.user_product);
         userProductLine.setOnClickListener(this);
-        //setData();
+        userSettingLine.setOnClickListener(this);
+        setData();
     }
 
     /**
@@ -48,19 +44,21 @@ public class UserActivity extends Activity implements View.OnClickListener{
      */
     private void setData() {
         Intent intent = UserActivity.this.getIntent();
-        Bundle bundle = intent.getExtras();
+        username = intent.getStringExtra("username");
-        usernameText.setText(String.format("用户名：%s", bundle.getString("username")));
+        usernameText.setText(String.format("%s", username));
-        userSexText.setText(String.format("性别：%s", bundle.getString("sex")));
-        userCityText.setText(String.format("城市：%s", bundle.getString("city")));
     }
     @Override
     public void onClick(View v) {
         switch (v.getId()) {
-
             case R.id.user_product:
                 Intent intent2 = new Intent(this,GoodsActivity.class);
                 startActivity(intent2);
                 break;
+            case R.id.user_setting:
+                Intent intent3 = new Intent(this,UserMessageActivity.class);
+                intent3.putExtra("username",username);
+                startActivity(intent3);
+                break;
         }
     }
 }

app/src/main/java/com/example/Cat/activity/activity/UserMessageActivity.java

@@ -0,0 +1,47 @@
+package com.example.Cat.activity.activity;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.database.sqlite.SQLiteDatabase;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.TextView;
+
+import com.example.Cat.R;
+
+import java.util.List;
+
+public class UserMessageActivity extends AppCompatActivity implements View.OnClickListener {
+    private TextView usernameText,sexText,addressText;
+    private String username;
+    List<UserInfo> list ;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.user_msg);
+        init();
+        setData();
+    }
+    private void setData() {
+        Intent intent = UserMessageActivity.this.getIntent();
+        username = intent.getStringExtra("username");
+        User_Database user=new User_Database(UserMessageActivity.this);
+        SQLiteDatabase sqLiteDatabase=user.getReadableDatabase();
+        list=user.queryByName(sqLiteDatabase,username);
+        usernameText.setText(String.format("%s", list.get(0).username));
+        sexText.setText(String.format("%s",list.get(0).sex));
+        addressText.setText(String.format("%s", list.get(0).city));
+    }
+    private void init() {
+        usernameText = findViewById(R.id.username);
+        sexText = findViewById(R.id.sex);
+        addressText = findViewById(R.id.address);
+    }
+
+    @Override
+    public void onClick(View view) {
+
+    }
+}

app/src/main/java/com/example/Cat/activity/activity/User_Database.java

@@ -7,6 +7,8 @@ import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
 import android.util.Log;
 
+import androidx.annotation.NonNull;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -18,9 +20,9 @@ public class User_Database extends SQLiteOpenHelper {
         System.out.println("in User_Database ,context="+ context);
     }
 
+    //添加用户
     @Override
     public void onCreate(SQLiteDatabase sqLiteDatabase) {
-        System.out.println("onCreate");
         String sql = "create table user(" +
                 "id integer primary key autoincrement," +
                 "username varchar(20),paswd varchar(20)," +
@@ -37,14 +39,20 @@ public class User_Database extends SQLiteOpenHelper {
 
     //添加数据
 
-    public void adddata(SQLiteDatabase sqLiteDatabase, String username, String paswd, String sex, String city) {
+    public String addData(SQLiteDatabase sqLiteDatabase, String username, String paswd, String sex, String city) {
         ContentValues values = new ContentValues();
         values.put("username", username);
         values.put("paswd", paswd);
         values.put("sex", sex);
         values.put("city", city);
-        sqLiteDatabase.insert("user", null, values);
+        //验证用户名是否存在
-        //sqLiteDatabase.close();
+        List<UserInfo> userListByName=queryByName(sqLiteDatabase,username);
+        //存在返回“repeat”,不存在则继续添加
+        if(!userListByName.isEmpty()) return"repeat";
+        long res=sqLiteDatabase.insert("user", null, values);
+        sqLiteDatabase.close();
+        if(res==-1) return"false";
+        return "success";
     }
 
     //删除数据
@@ -70,7 +78,7 @@ public class User_Database extends SQLiteOpenHelper {
     }
 
     //查询全部数据
-    public List<UserInfo> querydata(SQLiteDatabase sqLiteDatabase) {
+    public List<UserInfo> queryData(SQLiteDatabase sqLiteDatabase) {
         Cursor cursor = sqLiteDatabase.query("user", null, null, null, null, null, "id ASC");
         List<UserInfo> list = new ArrayList<UserInfo>();
         while (cursor.moveToNext()) {
@@ -90,23 +98,21 @@ public class User_Database extends SQLiteOpenHelper {
         sqLiteDatabase.close();
         return list;
     }
-    public List<UserInfo> queryByname(SQLiteDatabase sqLiteDatabase,String username) {
+
-        Cursor cursor = sqLiteDatabase.query("user", null, "username=?", new String[]{username}, null, null, "id ASC");
+    //根据传入用户名查询记录
+    public List<UserInfo> queryByName(SQLiteDatabase sqLiteDatabase,String name) {
+        Cursor cursor = sqLiteDatabase.query("user", null, "username=?", new String[]{name}, null, null, "id ASC");
         List<UserInfo> list = new ArrayList<UserInfo>();
         while (cursor.moveToNext()) {
             int id = cursor.getInt(cursor.getColumnIndex("id"));
-           // Log.i("SQLite","id="+id);
+            String username = cursor.getString(1);
-            String name = cursor.getString(1);
-           // Log.i("SQLite","username="+username);
             String paswd = cursor.getString(2);
-            //Log.i("SQLite","paswd="+paswd);
             String sex = cursor.getString(3);
-           // Log.i("SQLite","sex="+sex);
             String city = cursor.getString(4);
-            list.add(new UserInfo(id, name, paswd, sex, city));
+            list.add(new UserInfo(id, username, paswd, sex, city));
         }
         cursor.close();
-        //sqLiteDatabase.close();
+        sqLiteDatabase.close();
         return list;
     }
 

app/src/main/res/layout/content_user.xml

@@ -4,7 +4,15 @@
     android:layout_height="match_parent"
     android:background="#E8E8E8"
     android:orientation="vertical">
+    <!--头像-->
 
+    <LinearLayout
+        android:id="@+id/user_userMsg"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="#FFF"
+        android:layout_marginTop="20dp"
+        android:orientation="horizontal">
         <ImageView
             android:id="@+id/user_icon"
             android:layout_width="wrap_content"
@@ -12,36 +20,6 @@
             android:layout_marginTop="20dp"
             android:layout_gravity="center_horizontal"
             android:src="@drawable/user_icon" />
-
-    <!--卡券-->
-    <LinearLayout
-        android:id="@+id/user_pay"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:background="#FFF"
-        android:layout_marginTop="40dp"
-        android:orientation="horizontal">
-
-        <TextView
-            android:layout_height="35dp"
-            android:layout_weight="1"
-            android:drawableLeft="@drawable/user_pay"
-            android:textColor="#000"
-            android:text="卡券"
-            android:gravity="center_vertical"
-            android:drawablePadding="8dp"
-            android:textSize="14sp"
-            android:layout_marginLeft="5dp"
-            android:layout_width="0dp" />
-
-        <ImageView
-            android:layout_width="25dp"
-            android:layout_height="25dp"
-            android:layout_gravity="center"
-            android:src="@drawable/arrow_right" />
-    </LinearLayout>
-
-    <!--账号-->
         <LinearLayout
                 android:id="@+id/user_username_line"
                 android:layout_width="match_parent"
@@ -49,115 +27,20 @@
                 android:background="#FFF"
                 android:layout_marginTop="30dp"
                 android:orientation="horizontal">
-
             <TextView
                 android:id="@+id/user_username"
                 android:layout_height="35dp"
                 android:layout_weight="1"
-            android:drawableLeft="@drawable/user_account"
-            android:textColor="#000"
-            android:text="账号："
-            android:gravity="center_vertical"
-            android:drawablePadding="8dp"
-            android:textSize="14sp"
-            android:layout_marginLeft="5dp"
-            android:layout_width="0dp" />
-
-        <ImageView
-            android:layout_width="25dp"
-            android:layout_height="25dp"
-            android:layout_gravity="center"
-            android:src="@drawable/arrow_right" />
-
-    </LinearLayout>
-
-    <!--性别-->
-    <LinearLayout
-        android:id="@+id/user_sex_line"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:background="#FFF"
-        android:layout_marginTop="1dp"
-        android:orientation="horizontal">
-
-        <TextView
-            android:id="@+id/user_sex"
-            android:layout_height="35dp"
-            android:layout_weight="1"
-            android:layout_marginLeft="5dp"
-            android:drawableLeft="@drawable/user_sex"
-            android:textColor="#000"
-            android:text="城市："
-            android:gravity="center_vertical"
-            android:drawablePadding="8dp"
-            android:textSize="14sp"
-            android:layout_width="0dp" />
-
-        <ImageView
-            android:layout_width="25dp"
-            android:layout_height="25dp"
-            android:layout_gravity="center"
-            android:src="@drawable/arrow_right" />
-
-    </LinearLayout>
-
-    <!--城市-->
-    <LinearLayout
-        android:id="@+id/user_city_line"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:background="#FFF"
-        android:layout_marginTop="1dp"
-        android:orientation="horizontal">
-
-        <TextView
-            android:id="@+id/user_city"
-            android:layout_height="35dp"
-            android:layout_weight="1"
-            android:drawableLeft="@drawable/city"
                 android:textColor="#000"
-            android:text="城市："
+                android:text="姓名"
                 android:gravity="center_vertical"
-            android:drawablePadding="8dp"
+                android:drawablePadding="10dp"
-            android:textSize="14sp"
+                android:textSize="24sp"
                 android:layout_marginLeft="5dp"
                 android:layout_width="0dp" />
 
-        <ImageView
-            android:layout_width="25dp"
-            android:layout_height="25dp"
-            android:layout_gravity="center"
-            android:src="@drawable/arrow_right" />
-
         </LinearLayout>
 
-    <!--通用-->
-    <LinearLayout
-        android:id="@+id/user_general"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:background="#FFF"
-        android:layout_marginTop="20dp"
-        android:orientation="horizontal">
-
-        <TextView
-            android:layout_height="35dp"
-            android:layout_weight="1"
-            android:drawableLeft="@drawable/user_general"
-            android:textColor="#000"
-            android:text="通用"
-            android:gravity="center_vertical"
-            android:drawablePadding="8dp"
-            android:textSize="14sp"
-            android:layout_marginLeft="5dp"
-            android:layout_width="0dp" />
-
-        <ImageView
-            android:layout_width="25dp"
-            android:layout_height="25dp"
-            android:layout_gravity="center"
-            android:src="@drawable/arrow_right" />
-
     </LinearLayout>
 
     <!--查看商品-->
@@ -205,7 +88,7 @@
             android:layout_weight="1"
             android:drawableLeft="@drawable/setting"
             android:textColor="#000"
-            android:text="设置"
+            android:text="信息设置"
             android:gravity="center_vertical"
             android:drawablePadding="8dp"
             android:textSize="14sp"

app/src/main/res/layout/user_msg.xml

@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    >
+
+    <LinearLayout
+        android:layout_width="370dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="20dp"
+        android:background="#C9CDD4"
+        android:orientation="horizontal">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="20dp"
+            android:text="用户名:"
+            android:textColor="#000000"
+            android:textSize="22sp"
+            android:textStyle="italic" />
+
+        <TextView
+            android:id="@+id/username"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:text="Cat"
+            android:textColor="#000000"
+            android:textSize="22sp"
+            android:textStyle="italic" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="370dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="20dp"
+        android:background="#C9CDD4"
+        android:orientation="horizontal">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="20dp"
+            android:text="性别:"
+            android:textColor="#000000"
+            android:textSize="22sp"
+            android:textStyle="italic" />
+
+        <TextView
+            android:id="@+id/sex"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:text="Cat"
+            android:textColor="#000000"
+            android:textSize="22sp"
+            android:textStyle="italic" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="370dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="20dp"
+        android:background="#C9CDD4"
+        android:orientation="horizontal">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="20dp"
+            android:text="地址:"
+            android:textColor="#000000"
+            android:textSize="22sp"
+            android:textStyle="italic" />
+
+        <TextView
+            android:id="@+id/address"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:text="Cat"
+            android:textColor="#000000"
+            android:textSize="22sp"
+            android:textStyle="italic" />
+    </LinearLayout>
+
+
+</LinearLayout>