用android studio写一个简单的记单词?????App

深藏阁楼爱情的钟 2023-10-03 19:42 38阅读 0赞

一个贼贼简单的APP，按照前端来说，就只是实现了几个页面跳转和点击事件，数据库链接都没用到。就这么几个简单的页面和跳转，各位见笑了。

看一下效果吧：

![545d594e9de64f1e8de631de6bfb38ba.png][]

**页面设计(activity\_main)：**

<?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:orientation="vertical"
        android:padding="10dp"
        android:background="@mipmap/pp1"
        tools:context=".MainActivity">
    
        <TextView
            android:id="@+id/tv1"
            android:layout_width="wrap_content"
            android:layout_height="50dp"
            android:text="我爱安卓"
            android:textColor="#000000 "
            android:textSize="18sp"
            android:layout_gravity="center"
            android:layout_marginTop="160dp"
             />
    
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="欢迎登入，hello"
            android:textColor="#FF5722"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    
       <EditText
           android:id="@+id/et_1"
           android:layout_width="match_parent"
           android:layout_height="50dp"
           android:textSize="16sp"
           android:textColor="@color/colorBlack"
    
          android:hint="用户名："
           android:maxLines="1"
           android:padding="5dp"
           android:layout_marginTop="8dp"
           android:background="@drawable/bb_username"
           />
    
        <EditText
            android:id="@+id/et_2"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:textSize="16sp"
            android:textColor="@color/colorBlack"
            android:hint="密码："
            android:maxLines="1"
            android:padding="5dp"
            android:inputType="textPassword"
            android:layout_marginTop="6dp"
            android:background="@drawable/bb_username"
            />
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_marginTop="20dp"
    >
    
            <Button
                android:id="@+id/btn_login"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_gravity="center"
                android:layout_weight="1"
                android:background="@drawable/bbn_1left"
                android:textColor="#000000"
                android:text="登入" />
    
            <Button
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="wrap_content"
                android:text="注册"
                android:layout_marginLeft="2dp"
                android:background="@drawable/bbn_1right"
                android:textColor="#000000"
                />
    
        </LinearLayout>
    
    </LinearLayout>

**java(MainActivity)：**

package com.example.jdcapp;
    
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.EditText;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    import com.example.jdcapp.util.ToastUtil;
    
    
    public class MainActivity extends  AppCompatActivity implements View.OnClickListener {
        //声明控件
        private Button mBtnLogin;
        private EditText mEtUser;
        private  EditText mEtPassword;
    
        @Override
        protected void onCreate(Bundle savedInstanceState){
    
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            //找到控件
            mBtnLogin = findViewById(R.id.btn_login);
            mEtUser = findViewById(R.id.et_1);
            mEtPassword = findViewById(R.id.et_2);
    
    //    //实现跳转
    //    mBtnLogin.setOnClickListener(new View.OnClickListener() {
    //        @Override
    //        public void onClick(View v) {
    //            Intent intent =null;
    //            intent = new Intent(MainActivity.this,SlideActivity.class);
    //            startActivity(intent);
    //        }
    //    });
            mBtnLogin.setOnClickListener(this);
        }
        public void onClick(View v){
            //需要获取用户名和密码
            String username = mEtUser.getText().toString();
            String password = mEtPassword.getText().toString();
            //弹出的内容设置
            String ok = "登入成功";
            String fail = "密码或者账号有误，请重新输入";
    
            Intent intent = null ;
            //假设正确的账号是ttk，密码是 123456
            if(username.equals("ttj")&&password.equals("123456")){
                //封装好的类
                ToastUtil.showMsg(MainActivity.this,ok);
                //如果正确的话进行跳转
                intent = new Intent(MainActivity.this,SlideActivity.class);
                startActivity(intent);
            }
            else{
    //         Toast toastCenter = Toast.makeText(getApplicationContext(),fail,Toast.LENGTH_SHORT);
    //         toastCenter.setGravity(Gravity.CENTER,0,0);
    //         toastCenter.show();
                ToastUtil.showMsg(MainActivity.this,fail);
    
            }
    
        }
    
        @Override
        public void onPointerCaptureChanged(boolean hasCapture) {
    
        }
    }

**用户名和密码是写死的： 用户名：ttj 密码：123456**

![57c5bd50849e44c2b949081979367ff0.png][]

![f045ef98129844649e8df7d0e63b34b3.png][]

**页面设计（activity\_slide）：**

<?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:orientation="vertical"
        android:padding="10dp"
        android:background="@mipmap/tp2"
        tools:context=".SlideActivity">
    
    
        <TextView
            android:id="@+id/vt_gunc_1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="主界面"
            android:textSize="30sp"
            android:gravity="center"
            />
    
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:text="选择学习类型"
            android:gravity="center"
            android:layout_marginTop="150dp"
            android:textColor="#000000"/>
    
        <Button
            android:id="@+id/xfw_1"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:text="安卓发展史"
            android:gravity="center"
            android:layout_marginLeft="10dp"
            android:background="@drawable/bb_username"
            android:textColor="#000000"
            />
    
        <Button
            android:id="@+id/xfw_2"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:text="安卓语法"
            android:gravity="center"
            android:layout_marginLeft="10dp"
            android:background="@drawable/bb_username"
            android:textColor="#000000"
            />
    
        <Button
            android:id="@+id/xfw_3"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:text="安卓基本常识"
            android:gravity="center"
            android:layout_marginLeft="10dp"
            android:background="@drawable/bb_username"
            android:textColor="#000000"
            />
    
        <Button
            android:id="@+id/xfw_4"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:text="安卓小测试"
            android:gravity="center"
            android:layout_marginLeft="10dp"
            android:background="@drawable/bb_username"
            android:textColor="#000000"
            />
    
    
    
    
    
    
    </LinearLayout>

**java（SlideActivity）：**

package com.example.jdcapp;
    
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    public class SlideActivity extends AppCompatActivity {
        //声明控件
        private  Button mBhistory;
    
    
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_slide);
            //找到控件
            mBhistory = findViewById(R.id.xfw_1);
    
            //实现跳转
            mBhistory.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent intent = null ;
                    intent = new Intent(SlideActivity.this,function1Activity.class);
                    startActivity(intent);
    
                }
            });
        }
    
    }

![f18039743f5745559f5463cc0785e2a0.png][]

**页面设计（activity\_function1.xml）：**

<?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:orientation="vertical"
        android:padding="10dp"
        tools:context=".function1Activity">
    
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:text="下面是安卓的发展历史"
            android:textSize="30sp"
            android:gravity="center"
            android:textColor="#DF1157"
            />
    
        <TextView
            android:layout_width="match_parent"
            android:layout_height="320dp"
            android:text="  2003年10月，Andy Rubin等人创建Android公司，并组建Android团队。2005年8月17日，Google低调收购了成立仅22个月的高科技企业Android及其团队。安迪鲁宾成为Google公司工程部副总裁，继续负责Android项目。
    
    2007年11月5日，谷歌公司正式向外界展示了这款名为Android的操作系统。直到2011年1月，谷歌称每日的Android设备新用户数量达到了30万部，到2011年7月，这个数字增长到55万部，而Android系统设备的用户总数达到了1.35亿，Android系统已经成为智能手机领域占有量最高的系统。"
            android:textSize="20sp"
            android:textColor="#000000"
            />
    
     <TextView
         android:layout_width="match_parent"
         android:layout_height="40dp"
         android:text="小练习：下面哪个是Android标志呢？???"
         android:textSize="20sp"
         android:padding="5dp"
         android:textColor="#068006"
         />
    
       <LinearLayout
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           >
    
        <ImageView
            android:id="@+id/iv_an"
            android:layout_width="100dp"
            android:layout_height="70dp"
            android:src="@mipmap/tp9"
            />
    
    
            <ImageView
                android:id="@+id/iv_an2"
                android:layout_width="90dp"
                android:layout_height="70dp"
                android:src="@mipmap/tp3"
                />
    
           <ImageView
               android:layout_width="90dp"
               android:layout_height="70dp"
               android:src="@mipmap/tp5"
               />
           <ImageView
               android:layout_width="90dp"
               android:layout_height="70dp"
               android:src="@mipmap/tp8"
               />
    
       </LinearLayout>
    
    </LinearLayout>

**java（function1Activity）：**

package com.example.jdcapp;
    
    import android.content.Intent;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.ImageView;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    public class function1Activity extends AppCompatActivity {
        private ImageView Iman;
        private ImageView Iman2;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_function1);
    
            Iman = findViewById(R.id.iv_an);
            Iman2 = findViewById(R.id.iv_an2);
    
            Iman.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent intent =null;
                    intent = new Intent(function1Activity.this, com.example.jdcapp.function11Activity.class);
                    startActivity(intent);
                }
            });
    
            Iman2.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent intent =null;
                    intent = new Intent(function1Activity.this,funnn.class);
                    startActivity(intent);
                }
            });
    
    }
    }

![3aa2d84845314fb087a8f8168b96937e.png][]

**页面设计（activity\_function11.xml）：**

**java(function11Activity )：**

别忘了配置**AndroidManifest.xml**

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        package="com.example.jdcapp">
    
        <application
            android:allowBackup="true"
            android:dataExtractionRules="@xml/data_extraction_rules"
            android:fullBackupContent="@xml/backup_rules"
            android:icon="@mipmap/ic_launcher"
            android:label="@string/app_name"
            android:roundIcon="@mipmap/ic_launcher_round"
            android:supportsRtl="true"
            android:theme="@style/Theme.JDCApp"
            tools:targetApi="31">
    
            <activity android:name=".function11Activity" />
            <activity android:name=".function1Activity" />
            <activity android:name=".SlideActivity" />
            <activity android:name=".funnn" />
            <activity android:name=".MainActivity"
                android:exported="true">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />
    
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
        </application>
    
    </manifest>

**最后就是用到的样式和目录结构：**

**bb\_username.xml**

<?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android">
    <stroke
        android:width="2dp"
        android:color="@color/colorBlack"
        />
    <corners
        android:radius="50dp"
    
        />
    
        <solid
            android:color="#00000000"
            />
    
    </shape>

**bbn\_1left.xml**

<?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android">
    <stroke
        android:width="2dp"
        android:color="@color/colorBlack"
        />
    <corners
        android:topLeftRadius="150dp"
        android:bottomLeftRadius="150dp"
        />
    
        <solid
            android:color="#00000000"
            />
    </shape>

**bbn\_1right.xml**

<?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android">
    <stroke
        android:width="2dp"
        android:color="@color/colorBlack"
        />
    <corners
        android:topRightRadius="5dp"
        android:bottomRightRadius="5dp"
        />
    
        <solid
            android:color="#00000000"
            />
    
    </shape>

![9c4326b5985046b29716a462d054441a.png][]

[545d594e9de64f1e8de631de6bfb38ba.png]: https://img-blog.csdnimg.cn/545d594e9de64f1e8de631de6bfb38ba.png
[57c5bd50849e44c2b949081979367ff0.png]: https://img-blog.csdnimg.cn/57c5bd50849e44c2b949081979367ff0.png
[f045ef98129844649e8df7d0e63b34b3.png]: https://img-blog.csdnimg.cn/f045ef98129844649e8df7d0e63b34b3.png
[f18039743f5745559f5463cc0785e2a0.png]: https://img-blog.csdnimg.cn/f18039743f5745559f5463cc0785e2a0.png
[3aa2d84845314fb087a8f8168b96937e.png]: https://img-blog.csdnimg.cn/3aa2d84845314fb087a8f8168b96937e.png
[9c4326b5985046b29716a462d054441a.png]: https://img-blog.csdnimg.cn/9c4326b5985046b29716a462d054441a.png