Android开发实战——登录注册+短信登录/手机号登录+忘记密码（附源码）

谁践踏了优雅 2023-09-30 19:38 73阅读 0赞

LoginMainActivity.java

package com.example.chapter03;
    
    import androidx.activity.result.ActivityResult;
    import androidx.activity.result.ActivityResultCallback;
    import androidx.activity.result.ActivityResultLauncher;
    import androidx.activity.result.contract.ActivityResultContracts;
    import androidx.appcompat.app.AlertDialog;
    import androidx.appcompat.app.AppCompatActivity;
    import androidx.appcompat.widget.ViewUtils;
    
    import android.content.DialogInterface;
    import android.content.Intent;
    import android.os.Bundle;
    import android.text.Editable;
    import android.text.TextWatcher;
    import android.view.View;
    import android.widget.Button;
    import android.widget.CheckBox;
    import android.widget.EditText;
    import android.widget.RadioButton;
    import android.widget.RadioGroup;
    import android.widget.TextView;
    import android.widget.Toast;
    
    import java.util.Random;
    
    public class LoginMainActivity extends AppCompatActivity implements RadioGroup.OnCheckedChangeListener, View.OnClickListener {
    
        private TextView tv_password;
        private EditText et_password;
        private Button btn_forget;
        private CheckBox ck_remember;
        private EditText et_phone;
        private RadioButton rb_password;
        private RadioButton rb_verifycode;
        private ActivityResultLauncher<Intent> register;
        private Button btn_login;
        private String mPassword = "123456";
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_login_main);
            RadioGroup rb_login = findViewById(R.id.rg_login);
            tv_password = findViewById(R.id.tv_password);
            et_phone = findViewById(R.id.et_phone);
            et_password = findViewById(R.id.et_password);
            btn_forget = findViewById(R.id.btn_forget);
            ck_remember = findViewById(R.id.ck_remember);
            rb_password = findViewById(R.id.rb_password);
            rb_verifycode = findViewById(R.id.rb_verifycode);
            btn_login = findViewById(R.id.btn_login);
    
            // 给rg_login设置单选监听器
            rb_login.setOnCheckedChangeListener(this);
            // 给et_phone添加文本变更监视器
            et_phone.addTextChangedListener(new HideTextWatcher(et_phone,11));
            // 给et_password添加文本变更监视器
            et_password.addTextChangedListener(new HideTextWatcher(et_password,6));
            btn_forget.setOnClickListener(this);
    
            // 登录页面
            btn_login.setOnClickListener(this);
    
    
    
            register = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), new ActivityResultCallback<ActivityResult>() {
                @Override
                public void onActivityResult(ActivityResult result) {
    
                }
            });
    
        }
    
    
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int checkedId) {
            switch (checkedId){
                case R.id.rb_password:
                    tv_password.setText(getString(R.string.login_password));
                    et_password.setHint(getString(R.string.input_password));
                    btn_forget.setText(getString(R.string.forget_password));
                    ck_remember.setVisibility(View.VISIBLE);
                    break;
    
    
                // 选择了验证码登录
                case R.id.rb_verifycode:
                    tv_password.setText(getString(R.string.verifycode));
                    et_password.setHint(getString(R.string.input_verifycode));
                    btn_forget.setText(getString(R.string.get_verifycode));
                    ck_remember.setVisibility(View.GONE);
                    break;
    
            }
        }
    
        @Override
        public void onClick(View view) {
            String phone = et_phone.getText().toString();
            if (phone.length() < 11){
                Toast.makeText(this, "请输入正确的手机号", Toast.LENGTH_SHORT).show();
                return;
            }
            switch (view.getId()){
                case R.id.btn_forget:
    
                    if(rb_password.isChecked()){
                        Intent intent = new Intent(this,LoginForgetActivity.class);
                        intent.putExtra("phone",phone);
                        register.launch(intent);
    
                    }else if(rb_verifycode.isChecked()){
                        // 生成六位随机数字的验证码
                        String verifyCode = String.format("%06d",new Random().nextInt(999999));
                        // 以下弹出提醒对话框，提示用户记住六位验证码数字
                        AlertDialog.Builder builder = new AlertDialog.Builder(this);
                        builder.setTitle("请记住验证码");
                        builder.setMessage("手机号"+phone+",本次验证码是："+verifyCode+",请输入验证码");
                        builder.setPositiveButton("好的",null);
                        AlertDialog dialog = builder.create();
                        dialog.show();
    
                    }
                    break;
    
                case R.id.btn_login:
                    //密码校验方式
                    if (rb_password.isChecked()) {
                        if (!mPassword.equals(et_password.getText().toString())) {
                            Toast.makeText(this, "请输入正确的密码", Toast.LENGTH_SHORT).show();
                            return;
                        }
                        //提示用户登录成功
                        loginSuccess();
    
                    }else if(rb_verifycode.isChecked()){
                        //验证码方式的校验
    
                }
                    break;
            }
    
        }
    
        // 校验通过，登录成功
        private void loginSuccess() {
            String desc = String.format("%s登录成功",et_phone.getText().toString());
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle("登录成功");
            builder.setMessage(desc);
            builder.setPositiveButton("确定返回", (dialogInterface, i) -> {
                // 结束2当前的活动界面
                finish();
            });
            builder.setNegativeButton("我再看看",null);
            AlertDialog dialog =  builder.create();
            dialog.show();
        }
    
        private class HideTextWatcher implements TextWatcher {
            private EditText mView;
            private int mMaxLength;
            public HideTextWatcher(EditText v, int maxLength) {
                this.mView = v;
                this.mMaxLength = maxLength;
            }
    
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
    
            }
    
            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
    
            }
    
            @Override
            public void afterTextChanged(Editable s) {
                if(s.toString().length()==mMaxLength){
    
                }
    
            }
        }
    }

LoginForgetActivity.java

package com.example.chapter03;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    import android.os.Bundle;
    
    public class LoginForgetActivity extends AppCompatActivity {
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_login_forget);
        }
    }

<?xml version="1.0" encoding="utf-8"?>
    <androidx.constraintlayout.widget.ConstraintLayout 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"
        tools:context=".LoginForgetActivity">
    
    </androidx.constraintlayout.widget.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout 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="@drawable/ic_background"
        android:orientation="vertical"
        tools:context=".LoginMainActivity">
    
        <RadioGroup
            android:id="@+id/rg_login"
            android:layout_width="match_parent"
            android:layout_height="@dimen/item_layout_height"
            android:orientation="horizontal">
    
            <RadioButton
                android:id="@+id/rb_password"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:checked="true"
                android:text="@string/login_by_password"
                android:textSize="@dimen/common_font_size"
                android:textColor="@color/black">
            </RadioButton>
    
            <RadioButton
                android:id="@+id/rb_verifycode"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:text="@string/login_by_verifycode"
                android:textColor="@color/black"
                android:textSize="@dimen/common_font_size"></RadioButton>
        </RadioGroup>
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="@dimen/item_layout_height"
            android:orientation="horizontal">
    
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="@string/phone_number"
                android:textColor="@color/black"
                android:textSize="@dimen/common_font_size">
            </TextView>
    
            <EditText
                android:id="@+id/et_phone"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:layout_marginTop="5dp"
                android:layout_marginBottom="5dp"
                android:background="@color/white"
                android:hint="@string/input_phone_number"
                android:inputType="number"
                android:maxLength="11"
                android:textColor="@color/black"
                android:textColorHighlight="@color/grey"
                android:textSize="@dimen/common_font_size">
    
    
            </EditText>
    
        </LinearLayout>
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="@dimen/item_layout_height"
            android:orientation="horizontal">
    
            <TextView
                android:id="@+id/tv_password"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="@string/login_password"
                android:textColor="@color/black"
                android:textSize="@dimen/common_font_size">
            </TextView>
    
            <RelativeLayout
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1">
    
                <EditText
                    android:id="@+id/et_password"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_marginTop="5dp"
                    android:layout_marginBottom="5dp"
                    android:layout_weight="1"
                    android:background="@color/white"
                    android:hint="@string/input_password"
                    android:inputType="numberPassword"
                    android:maxLength="11"
                    android:textColor="@color/black"
                    android:textColorHighlight="@color/grey"
                    android:textSize="@dimen/common_font_size">
    
                </EditText>
    
                <Button
                    android:id="@+id/btn_forget"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:text="@string/forget_password"
                    android:layout_alignParentEnd="true"
                    android:textColor="@color/grey"
                    android:textSize="@dimen/common_font_size"
                    >
                </Button>
    
            </RelativeLayout>
    
    
    
        </LinearLayout>
    
    
        <CheckBox
            android:id="@+id/ck_remember"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/remember_password"
            android:textColor="@color/black"
            android:textSize="@dimen/common_font_size">
        </CheckBox>
    
    
        <Button
            android:id="@+id/btn_login"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/login"
            android:textColor="@color/black"
            android:textSize="@dimen/common_font_size"
            >
        </Button>
    
    
    </LinearLayout>

效果：  
![bb9477ab133f4c62a37c6405ba954c5b.png][]

[bb9477ab133f4c62a37c6405ba954c5b.png]: https://img-blog.csdnimg.cn/bb9477ab133f4c62a37c6405ba954c5b.png