安卓仿QQ界面

新建空的活动页面

JAVA代码：

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.os.SystemClock;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import com.example.llk_qq.user.Register;
import com.example.llk_qq.user.UserDB;
import com.example.llk_qq.user.user;

public class Login extends AppCompatActivity implements View.OnClickListener {
    private UserDB userDB;
    private user user;
    private EditText account2, pwd;
    private CheckBox remember;
    private Button LoginButton, RegistButton;
    private TextView alluser;
    private ProgressBar progressBar;
    ProgressDialog prodialog;

    public static final String TAG = com.example.llk_qq.Login.class.getName();
    private ImageView iv_showCode;
    private EditText et_phoneCode;
    private EditText et_phoneNum;
    //产生的验证码
    private String realCode;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        account2=findViewById(R.id.accountedit);
        pwd=findViewById(R.id.passwordedit);
        iv_showCode = (ImageView) findViewById(R.id.iv_showCode);
        //将验证码用图片的形式显示出来
        iv_showCode.setImageBitmap(com.example.llk_qq.Code.getInstance().createBitmap());
        realCode = com.example.llk_qq.Code.getInstance().getCode().toLowerCase();
        iv_showCode.setOnClickListener(this);
        final ProgressDialog dialog = new ProgressDialog(this);
        et_phoneCode = (EditText) findViewById(R.id.et_phoneCodes);
        Button button1 = (Button) findViewById(R.id.go);
        button1.setOnClickListener(this);
        Button button2 = (Button) findViewById(R.id.add);
        Button button3 = (Button) findViewById(R.id.forget);
        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(com.example.llk_qq.Login.this, Register.class);
                startActivity(intent);
            }
        });
        button3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(com.example.llk_qq.Login.this, com.example.llk_qq.FindPwd.class);
                startActivity(intent);
            }
        });
    }



    @Override
    public void onClick(View v) {
        userDB =new UserDB();
        userDB.OpenUserDb(this);
        String account, password;
        account=account2.getText().toString();
        password=pwd.getText().toString();
        user = userDB.findUserByAccout(account);
        switch (v.getId()) {
            case R.id.iv_showCode:
                iv_showCode.setImageBitmap(com.example.llk_qq.Code.getInstance().createBitmap());
                realCode = com.example.llk_qq.Code.getInstance().getCode().toLowerCase();
                Log.v(TAG, "realCode" + realCode);
                break;
            case R.id.go:
                String phoneCode = et_phoneCode.getText().toString().toLowerCase();
                if (user == null) {
                    Toast.makeText(this, "账号不存在", Toast.LENGTH_SHORT).show();
                    return;
                } else if(!account.equals(user.getAccount()) || !password.equals(user.getPassword())){
                    Toast.makeText(this, "账号或密码错误", Toast.LENGTH_SHORT).show();
                }else if(!phoneCode.equals(realCode)){
                    Toast.makeText(this, "验证码错误", Toast.LENGTH_SHORT).show();
                }
                else if (account.equals(user.getAccount())&&password.equals(user.getPassword())&&phoneCode.equals(realCode)) {
                    final ProgressDialog dialog = new ProgressDialog(this);
                    dialog.setTitle("正在登录，请稍后...");
                    // 设置一下进度条的样式
                    dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                    // 最后一步一定要记得show 出来
                    dialog.show();
                    // 创建一个子线程
                    new Thread() {
                        public void run() {

                            // 设置进度条最大值
                            dialog.setMax(100);

                            // 设置当前进度
                            for (int i = 0; i <= 100; i++) {

                                dialog.setProgress(i);
                                // 睡眠一会
                                SystemClock.sleep(20);
                            }
                            // 关闭对话框
                            dialog.dismiss();
                            Intent intent = new Intent(com.example.llk_qq.Login.this, com.example.llk_qq.User.class);
                            intent.putExtra("account",user.getAccount());
                            intent.putExtra("name",user.getName());
                            intent.putExtra("age",user.getAge());
                            intent.putExtra("sex",user.getSex());
                            intent.putExtra("psd",user.getPassword());
                            startActivity(intent);
                        };
                    }.start();
                } else {
                    Toast.makeText(com.example.llk_qq.Login.this, phoneCode + "验证码错误", Toast.LENGTH_SHORT).show();
                }
                break;

                }

        }
    }

XML代码

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FFFFFF"

   >
   <LinearLayout
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:orientation="vertical"
       >
       <TextView
           android:background="@drawable/qq"
           android:id="@+id/qq"
           android:layout_marginTop="20dp"
           android:layout_marginLeft="100dp"
           android:layout_width="200dp"
           android:layout_height="150dp"
           />

       <EditText
           android:id="@+id/accountedit"
           android:layout_width="300dp"
           android:layout_height="60dp"
           android:layout_gravity="center"
           android:layout_marginLeft="10dp"
           android:background="@drawable/input"
           android:gravity="center"
           android:hint="QQ号/手机号/邮箱"
           android:textSize="23dp"></EditText>

       <EditText
           android:id="@+id/passwordedit"
           android:background="@drawable/input"
           android:hint="密码"
           android:textSize="23dp"
           android:gravity="center"
           android:layout_marginLeft="58dp"
           android:layout_width="300dp"
           android:layout_marginTop="20dp"
           android:layout_height="60dp"></EditText>
       <LinearLayout
           android:layout_marginTop="30dp"
           android:layout_width="match_parent"
           android:layout_height="80dp"
           android:orientation="horizontal">

           <EditText
               android:id="@+id/et_phoneCodes"
               android:layout_width="200dp"
               android:layout_height="50dp"
               android:background="@null"
               android:hint="请输入右侧验证码"
               android:gravity="center"
               android:layout_marginLeft="50dp"
               android:layout_marginTop="20dp"
               />
           <ImageView
               android:id="@+id/iv_showCode"
               android:layout_width="100dp"
               android:layout_marginLeft="30dp"
               android:layout_height="50dp"
               android:layout_marginTop="20dp"/>
       </LinearLayout>
       <Button
           android:id="@+id/go"
           android:layout_width="70dp"
           android:layout_height="70dp"
           android:layout_below="@id/passwordedit"
           android:layout_marginTop="30dp"
           android:layout_marginLeft="180dp"
           android:background="@drawable/go"
           android:onClick="go"/>
       <Button
           android:id="@+id/forget"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_below="@id/go"
           android:layout_marginLeft="120dp"
           android:layout_marginTop="100dp"
           android:background="#00000000"
           android:text="忘记密码" />
       <Button
           android:id="@+id/add"
           android:background="#00000000"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_marginLeft="230dp"
           android:layout_below="@id/go"
           android:layout_marginTop="-48dp"
           android:text="用户注册"/>

   </LinearLayout>


</RelativeLayout>

实际功能

本文地址：https://blog.csdn.net/saigaolang/article/details/107116373