登录页面练习

标签：登录练习 private import et android password id 页面

主页面

  1 <?xml version="1.0" encoding="utf-8"?>
  2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3     android:layout_width="match_parent"
  4     android:layout_height="match_parent"
  5     android:orientation="vertical">
  6 
  7     <RadioGroup
  8         android:id="@+id/rg_login"
  9         android:layout_width="match_parent"
 10         android:layout_height="@dimen/item_layout_height"
 11         android:orientation="horizontal">
 12 
 13         <RadioButton
 14             android:id="@+id/rb_password"
 15             android:layout_width="0dp"
 16             android:layout_height="match_parent"
 17             android:layout_weight="1"
 18             android:checked="true"
 19             android:text="@string/login_by_password"
 20             android:textSize="@dimen/common_font_size"
 21             android:textColor="@color/black"/>
 22 
 23         <RadioButton
 24             android:id="@+id/rb_verifycode"
 25             android:layout_width="0dp"
 26             android:layout_height="match_parent"
 27             android:layout_weight="1"
 28             android:text="@string/login_by_verifycode"
 29             android:textSize="@dimen/common_font_size"
 30             android:textColor="@color/black"/>
 31 
 32     </RadioGroup>
 33     <LinearLayout
 34         android:layout_width="match_parent"
 35         android:layout_height="@dimen/item_layout_height"
 36         android:orientation="horizontal">
 37         
 38         <TextView
 39             android:layout_width="wrap_content"
 40             android:layout_height="match_parent"
 41             android:gravity="center"
 42             android:text="@string/phone_number"
 43             android:textColor="@color/black"
 44             android:textSize="@dimen/common_font_size"/>
 45         
 46         <EditText
 47             android:id="@+id/et_phone"
 48             android:layout_width="0dp"
 49             android:layout_height="match_parent"
 50             android:layout_weight="1"
 51             android:layout_marginTop="5dp"
 52             android:layout_marginBottom="5dp"
 53             android:background="@drawable/editext_selector"
 54             android:hint="@string/input_phone_number"
 55             android:inputType="number"
 56             android:maxLength="11"
 57             android:textColor="@color/black"
 58             android:textColorHint="@color/grey"
 59             android:textSize="@dimen/common_font_size"/>
 60 
 61     </LinearLayout>
 62 
 63     <LinearLayout
 64         android:layout_width="match_parent"
 65         android:layout_height="@dimen/item_layout_height"
 66         android:orientation="horizontal">
 67 
 68         <TextView
 69             android:id="@+id/tv_password"
 70             android:layout_width="wrap_content"
 71             android:layout_height="match_parent"
 72             android:gravity="center"
 73             android:text="@string/login_password"
 74             android:textColor="@color/black"
 75             android:textSize="@dimen/common_font_size"/>
 76 
 77         <RelativeLayout
 78             android:layout_width="0dp"
 79             android:layout_height="match_parent"
 80             android:layout_weight="1">
 81 
 82             <EditText
 83                 android:id="@+id/et_password"
 84                 android:layout_width="match_parent"
 85                 android:layout_height="match_parent"
 86                 android:layout_weight="1"
 87                 android:layout_marginTop="5dp"
 88                 android:layout_marginBottom="5dp"
 89                 android:background="@drawable/editext_selector"
 90                 android:hint="@string/input_password"
 91                 android:inputType="numberPassword"
 92                 android:maxLength="11"
 93                 android:textColor="@color/black"
 94                 android:textColorHint="@color/grey"
 95                 android:textSize="@dimen/common_font_size"/>
 96             
 97             <Button
 98                 android:id="@+id/btn_forget"
 99                 android:layout_width="wrap_content"
100                 android:layout_height="match_parent"
101                 android:layout_alignParentEnd="true"
102                 android:text="@string/forget_password"
103                 android:textColor="@color/black"
104                 android:textSize="@dimen/common_font_size"/>
105 
106         </RelativeLayout>
107 
108     </LinearLayout>
109 
110     <CheckBox
111         android:id="@+id/ck_remember"
112         android:layout_width="match_parent"
113         android:layout_height="wrap_content"
114         android:button="@drawable/checkbox_selector"
115         android:text="@string/remember_password"
116         android:textColor="@color/black"
117         android:textSize="@dimen/common_font_size" />
118 
119     <Button
120         android:id="@+id/btn_login"
121         android:layout_width="match_parent"
122         android:layout_height="wrap_content"
123         android:text="@string/login"
124         android:textColor="@color/black"
125         android:textSize="@dimen/button_font_size" />
126 </LinearLayout>

主功能

  1 package com.example.login_text;
  2 
  3 import androidx.activity.result.ActivityResult;
  4 import androidx.activity.result.ActivityResultCallback;
  5 import androidx.activity.result.ActivityResultLauncher;
  6 import androidx.activity.result.contract.ActivityResultContract;
  7 import androidx.activity.result.contract.ActivityResultContracts;
  8 import androidx.appcompat.app.AppCompatActivity;
  9 
 10 import android.app.Activity;
 11 import android.app.AlertDialog;
 12 import android.content.Intent;
 13 import android.os.Bundle;
 14 import android.text.Editable;
 15 import android.text.TextWatcher;
 16 import android.view.View;
 17 import android.widget.Button;
 18 import android.widget.CheckBox;
 19 import android.widget.EditText;
 20 import android.widget.RadioButton;
 21 import android.widget.RadioGroup;
 22 import android.widget.TextView;
 23 import android.widget.Toast;
 24 
 25 import com.example.login_text.util.ViewUtil;
 26 
 27 import java.util.Random;
 28 
 29 public class LoginMainActivity extends AppCompatActivity implements RadioGroup.OnCheckedChangeListener, View.OnClickListener {
 30 
 31     private TextView tv_password;
 32     private EditText et_password;
 33     private Button btn_forget;
 34     private CheckBox ck_remember;
 35     private RadioButton rb_password;
 36     private RadioButton rb_verifycode;
 37     private EditText et_phone;
 38     private Button btn_login;
 39     private ActivityResultLauncher<Intent> register;
 40     private String mPassword = "111111";
 41     private String mVerifyCode;
 42 
 43     @Override
 44     protected void onCreate(Bundle savedInstanceState) {
 45         super.onCreate(savedInstanceState);
 46         setContentView(R.layout.activity_login_main);
 47         RadioGroup rb_login = findViewById(R.id.rg_login);
 48         tv_password = findViewById(R.id.tv_password);
 49         et_phone = findViewById(R.id.et_phone);
 50         et_password = findViewById(R.id.et_password);
 51         btn_forget = findViewById(R.id.btn_forget);
 52         ck_remember = findViewById(R.id.ck_remember);
 53         rb_password = findViewById(R.id.rb_password);
 54         rb_verifycode = findViewById(R.id.rb_verifycode);
 55         btn_login = findViewById(R.id.btn_login);
 56         // 给rg_login设置单选监听器
 57         rb_login.setOnCheckedChangeListener(this);
 58         // 给et_phone添加文本变更监听器
 59         et_phone.addTextChangedListener(new HideTextWatcher(et_phone, 11));
 60         // 给et_password添加文本变更监听器
 61         et_password.addTextChangedListener(new HideTextWatcher(et_password, 6));
 62         btn_forget.setOnClickListener(this);
 63         btn_login.setOnClickListener(this);
 64         rb_login.setOnCheckedChangeListener(this);
 65 
 66         register = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), new ActivityResultCallback<ActivityResult>() {
 67 
 68             @Override
 69             public void onActivityResult(ActivityResult result) {
 70                 Intent intent = result.getData();
 71                 if(intent != null && result.getResultCode() == Activity.RESULT_OK)
 72                 {
 73                     // 用户密码已改为新密码，故更新密码变量
 74                     mPassword = intent.getStringExtra("new_password");
 75                 }
 76             }
 77         });
 78     }
 79 
 80     @Override
 81     public void onCheckedChanged(RadioGroup group, int checkedId) {
 82         switch(checkedId){
 83             case R.id.rb_password:
 84                 tv_password.setText(getString(R.string.login_password));
 85                 et_password.setHint(getString(R.string.input_password));
 86                 btn_forget.setText(getString(R.string.forget_password));
 87                 ck_remember.setVisibility(View.VISIBLE);
 88                 break;
 89             case R.id.rb_verifycode:
 90                 tv_password.setText(getString(R.string.verifycode));
 91                 et_password.setHint(getString(R.string.input_verifycode));
 92                 btn_forget.setText(getString(R.string.get_verifycode));
 93                 ck_remember.setVisibility(View.GONE);
 94                 break;
 95         }
 96 
 97     }
 98 
 99     @Override
100     public void onClick(View v ) {
101 
102         String phone = et_phone.getText().toString();
103         if (phone.length() < 11) {
104             Toast.makeText(this, "手机号位数错误", Toast.LENGTH_SHORT).show();
105             return;
106         }
107         switch (v.getId()) {
108             case R.id.btn_forget:
109                 if (rb_password.isChecked()) {
110                     // 选择了密码方式校验，此时要跳到找回密码页面
111                     Intent intent = new Intent(this, LoginForgetActivity.class);
112                     intent.putExtra("phone", phone);
113                     register.launch(intent);
114                 } else if (rb_verifycode.isClickable()) {
115                     // 生成六位随机数字的验证码
116                     mVerifyCode = String.format("%06d", new Random().nextInt(999999));
117                     // 以下弹出提醒对话框，提示用户记住六位验证码数字
118                     AlertDialog.Builder builder = new AlertDialog.Builder(this);
119                     builder.setTitle("请记住验证码");
120                     builder.setMessage("手机号" + phone + ",本次验证码是" + mVerifyCode + ",请输入验证码");
121                     builder.setPositiveButton("好的", null);
122                     AlertDialog dialog = builder.create();
123                     dialog.show();
124                 }
125                 break;
126             case R.id.btn_login:
127                 // 密码方式校验
128                 if (rb_password.isChecked()) {
129                     if (!mPassword.equals(et_password.getText().toString())) {
130                         Toast.makeText(this, "密码错误", Toast.LENGTH_SHORT).show();
131                         return;
132                     }
133                     // 提示用户登录成功
134                     loginSuccess();
135                 } else if (rb_verifycode.isClickable()) {
136                     if (!mVerifyCode.equals(et_password.getText().toString())) {
137                         Toast.makeText(this, "验证码错误", Toast.LENGTH_SHORT).show();
138                         return;
139                     }
140                     // 提示用户登录成功
141                     loginSuccess();
142                 }
143                 break;
144         }
145     }
146 
147     private void loginSuccess() {
148         String desc = String.format("您的手机号码是%s，恭喜你通过登录验证，点击“确定”按钮返回上个页面",
149                 et_phone.getText().toString());
150         // 以下弹出提醒对话框，提示用户登录成功
151         AlertDialog.Builder builder = new AlertDialog.Builder(this);
152         builder.setTitle("登录成功");
153         builder.setMessage(desc);
154         builder.setPositiveButton("确定返回", (dialog, which) -> {
155             // 结束当前的活动页面
156             finish();
157         });
158         builder.setNegativeButton("我再看看", null);
159         AlertDialog dialog = builder.create();
160         dialog.show();
161     }
162 
163     // 定义一个编辑框监听器，在输入文本达到指定长度时自动隐藏输入法
164     private class HideTextWatcher implements TextWatcher {
165         private EditText mView;
166         private int mMaxLength;
167 
168         public HideTextWatcher(EditText v, int maxLength) {
169             this.mView = v;
170             this.mMaxLength = maxLength;
171         }
172 
173         @Override
174         public void beforeTextChanged(CharSequence s, int start, int count, int after) {
175 
176         }
177 
178         @Override
179         public void onTextChanged(CharSequence s, int start, int before, int count) {
180 
181         }
182 
183         @Override
184         public void afterTextChanged(Editable s) {
185             if (s.toString().length() == mMaxLength) {
186                 // 隐藏输入法软键盘
187                 ViewUtil.hideOneInputMethod(LoginMainActivity.this, mView);
188             }
189         }
190     }
191 }

忘记密码页面xml

  1 <?xml version="1.0" encoding="utf-8"?>
  2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3     android:layout_width="match_parent"
  4     android:layout_height="match_parent"
  5     android:orientation="vertical">
  6 
  7     <LinearLayout
  8         android:layout_width="match_parent"
  9         android:layout_height="@dimen/item_layout_height"
 10         android:orientation="horizontal">
 11 
 12         <TextView
 13             android:layout_width="wrap_content"
 14             android:layout_height="match_parent"
 15             android:gravity="center"
 16             android:text="@string/input_new_password"
 17             android:textColor="@color/black"
 18             android:textSize="@dimen/common_font_size"/>
 19 
 20         <EditText
 21             android:id="@+id/et_password_first"
 22             android:layout_width="0dp"
 23             android:layout_height="match_parent"
 24             android:layout_weight="1"
 25             android:layout_marginTop="5dp"
 26             android:layout_marginBottom="5dp"
 27             android:background="@drawable/editext_selector"
 28             android:hint="@string/input_new_password_hint"
 29             android:inputType="number"
 30             android:maxLength="11"
 31             android:textColor="@color/black"
 32             android:textColorHint="@color/grey"
 33             android:textSize="@dimen/common_font_size"/>
 34 
 35     </LinearLayout>
 36 
 37     <LinearLayout
 38         android:layout_width="match_parent"
 39         android:layout_height="@dimen/item_layout_height"
 40         android:orientation="horizontal">
 41 
 42         <TextView
 43             android:layout_width="wrap_content"
 44             android:layout_height="match_parent"
 45             android:gravity="center"
 46             android:text="@string/confirm_new_password"
 47             android:textColor="@color/black"
 48             android:textSize="@dimen/common_font_size"/>
 49 
 50         <EditText
 51             android:id="@+id/et_password_second"
 52             android:layout_width="0dp"
 53             android:layout_height="match_parent"
 54             android:layout_weight="1"
 55             android:layout_marginTop="5dp"
 56             android:layout_marginBottom="5dp"
 57             android:background="@drawable/editext_selector"
 58             android:hint="@string/input_new_password_again"
 59             android:inputType="number"
 60             android:maxLength="11"
 61             android:textColor="@color/black"
 62             android:textColorHint="@color/grey"
 63             android:textSize="@dimen/common_font_size"/>
 64     </LinearLayout>
 65     <LinearLayout
 66         android:layout_width="match_parent"
 67         android:layout_height="@dimen/item_layout_height"
 68         android:orientation="horizontal">
 69 
 70         <TextView
 71             android:layout_width="wrap_content"
 72             android:layout_height="match_parent"
 73             android:gravity="center"
 74             android:text="@string/verifycode2"
 75             android:textColor="@color/black"
 76             android:textSize="@dimen/common_font_size"/>
 77 
 78         <RelativeLayout
 79             android:layout_width="0dp"
 80             android:layout_height="match_parent"
 81             android:layout_weight="1">
 82 
 83             <EditText
 84                 android:id="@+id/et_verifycode"
 85                 android:layout_width="match_parent"
 86                 android:layout_height="match_parent"
 87                 android:layout_weight="1"
 88                 android:layout_marginTop="5dp"
 89                 android:layout_marginBottom="5dp"
 90                 android:background="@drawable/editext_selector"
 91                 android:hint="@string/input_verifycode"
 92                 android:inputType="number"
 93                 android:maxLength="11"
 94                 android:textColor="@color/black"
 95                 android:textColorHint="@color/grey"
 96                 android:textSize="@dimen/common_font_size"/>
 97 
 98             <Button
 99                 android:id="@+id/btn_verifycode"
100                 android:layout_width="wrap_content"
101                 android:layout_height="match_parent"
102                 android:layout_alignParentEnd="true"
103                 android:text="@string/get_verifycode"
104                 android:textColor="@color/black"
105                 android:textSize="@dimen/common_font_size"/>
106 
107         </RelativeLayout>
108 
109     </LinearLayout>
110 
111     <Button
112         android:id="@+id/btn_confirm"
113         android:layout_width="match_parent"
114         android:layout_height="wrap_content"
115         android:text="@string/done"
116         android:textColor="@color/black"
117         android:textSize="@dimen/button_font_size" />
118 </LinearLayout>

忘记密码功能java

 1 package com.example.login_text;
 2 
 3 import androidx.appcompat.app.AppCompatActivity;
 4 
 5 import android.app.Activity;
 6 import android.app.AlertDialog;
 7 import android.content.Intent;
 8 import android.os.Bundle;
 9 import android.view.View;
10 import android.widget.EditText;
11 import android.widget.Toast;
12 
13 import java.util.Random;
14 
15 public class LoginForgetActivity extends AppCompatActivity implements View.OnClickListener {
16 
17     private  String mPhone;
18     private String mVerifyCode;
19     private EditText et_password_first;
20     private EditText et_password_second;
21     private EditText et_verifycode;
22     @Override
23     protected void onCreate(Bundle savedInstanceState) {
24         super.onCreate(savedInstanceState);
25         setContentView(R.layout.activity_login_forget);
26         et_password_first = findViewById(R.id.et_password_first);
27         et_password_second = findViewById(R.id.et_password_second);
28         et_verifycode = findViewById(R.id.et_verifycode);
29         // 从上一个页面获取要修改密码的手机号码
30          mPhone = getIntent().getStringExtra("phone");
31 
32         findViewById(R.id.btn_verifycode).setOnClickListener(this);
33         findViewById(R.id.btn_confirm).setOnClickListener(this);
34     }
35 
36     @Override
37     public void onClick(View v) {
38         switch (v.getId()){
39             case R.id.btn_verifycode:
40                 // 生成六位随机数字的验证码
41                 mVerifyCode = String.format("%06d", new Random().nextInt(999999));
42                 // 以下弹出提醒对话框，提示用户记住六位验证码数字
43                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
44                 builder.setTitle("请记住验证码");
45                 builder.setMessage("手机号" + mPhone + ",本次验证码是" + mVerifyCode + ",请输入验证码");
46                 builder.setPositiveButton("好的", null);
47                 AlertDialog dialog = builder.create();
48                 dialog.show();
49                 break;
50             case R.id.btn_confirm:
51                 // 点击了“确定”按钮
52                 String password_first = et_password_first.getText().toString();
53                 String password_second = et_password_second.getText().toString();
54                 if(password_first.length() < 6)
55                 {
56                     Toast.makeText(this, "位数错误", Toast.LENGTH_SHORT).show();
57                     return;
58                 }
59                 if(!password_first.equals(password_second))
60                 {
61                     Toast.makeText(this, "两次输入的新密码不一致", Toast.LENGTH_SHORT).show();
62                     return;
63                 }
64                 Toast.makeText(this, "密码修改成功", Toast.LENGTH_SHORT).show();
65                 // 以下把修改好的新密码返回给上一个页面
66                 Intent intent = new Intent();
67                 intent.putExtra("new_password",password_first);
68                 setResult(Activity.RESULT_OK , intent);
69                 finish();
70                 break;
71         }
72     }
73 }

标签：登录,练习,private,import,et,android,password,id,页面
From： https://www.cnblogs.com/fan-wang/p/17173153.html

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