Android开发之实现简单的用户登录及登陆界面的UI设计（五）

深碍√TFBOYSˉ_ 2024-03-25 19:23 35阅读 0赞

登陆界面的UI设计

<?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="wrap_content"
        android:background="#03A9F4"
        android:orientation="vertical"
        android:padding="30sp">
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        
        <ImageView
            android:id="@+id/one_image_0"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:src="@drawable/xionger" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
    
            <ImageView
                android:id="@+id/one_image_1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/user" />
    
            <EditText
                android:id="@+id/one_edit_1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="请输入账号" />
        </LinearLayout>
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
    
            <ImageView
                android:id="@+id/one_image_2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/password" />
    
            <EditText
                android:id="@+id/one_edit_2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="请输入密码" />
        </LinearLayout>
    
        
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
    
            <TextView
                android:id="@+id/one_text_1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="忘记密码？"
                android:textAlignment="textEnd"
                android:textColor="@color/white" />
        </RelativeLayout>
    
        <Button
            android:id="@+id/one_button_1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="登录"
            android:textSize="20sp" />
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center">
    
            <TextView
                android:id="@+id/one_text_2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@id/one_button_1"
                android:text="还不是会员？"
                android:textColor="#756E6E"
                android:textSize="15sp" />
    
            <TextView
                android:id="@+id/one_text_3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="免费注册"
                android:textColor="@color/white"
                android:textSize="15sp" />
        </LinearLayout>
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <TextView
            android:id="@+id/one_text_4"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/one_button_1"
            android:text="-关联社交账号登录-"
            android:textAlignment="center"
            android:textColor="@color/white"
            android:textSize="15sp" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center">
    
        <ImageView
            android:id="@+id/one_image_3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/weixin" />
    
        <ImageView
            android:id="@+id/one_image_4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/qq" />
    
        <ImageView
            android:id="@+id/one_image_5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/weibo" />
        </LinearLayout>
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </LinearLayout>

编写Java代码，进行简单的用户账号和密码判断

package com.example.myapplication;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.EditText;
    import android.widget.Toast;
    
    public class OneActivity extends AppCompatActivity {
    
        EditText oneEdit1;
        EditText oneEdit2;
    
        Button oneButton1;
        @Override
    
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_one);
    
            //初始化UI界面
            oneEdit1=findViewById(R.id.one_edit_1);
            oneEdit2=findViewById(R.id.one_edit_2);
            oneButton1=findViewById(R.id.one_button_1);
    
            //设置监听器，监听按钮事件
            oneButton1.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    //设置两个接收用户名和密码的参数
                    String user=oneEdit1.getText().toString().trim();
                    String password=oneEdit2.getText().toString().trim();
    
                    //判断用户名和密码是否为zhansan和ganfan
                    if ("zhansan".equals(user) && "ganfan".equals(password)){
                        Toast.makeText(OneActivity.this, "登陆成功", Toast.LENGTH_LONG).show();
                    }else {
                        Toast.makeText(OneActivity.this, "登陆失败", Toast.LENGTH_SHORT).show();
                    }
                }
            });
    
        }
    }