Android程序第2次作业

package com.example.myapplication;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class Assignment02_01 extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity02_01);
        Button button1 = findViewById(R.id.button1);
        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "button1 被点击", Toast.LENGTH_SHORT).show();
            }
        });
        Button button2 = findViewById(R.id.button2);
        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "button2 被点击", Toast.LENGTH_SHORT).show();
            }
        });
    }


    public void button0Clicked(View v) {
        Toast.makeText(getApplicationContext(), "button0 被点击", Toast.LENGTH_SHORT).show();
    }
}

<?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:paddingTop="100dp"
    tools:context=".Assignment02_01">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="button0"
        android:id="@+id/button0"
        android:onClick="button0Clicked">
    </Button>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="button1"
        android:id="@+id/button1">
    </Button>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="button2"
        android:id="@+id/button2">
    </Button>
</LinearLayout>

package com.example.myapplication;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;

public class Assignment02_02 extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity02_02);
    }
}

<?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:layout_marginTop="70dp"
    android:layout_marginLeft="34dp"
    tools:context=".Assignment02_02">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="学历"
        android:textSize="50dp">
    </TextView>
    <RadioGroup
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="初中"
            android:textSize="49dp"
            ></RadioButton>
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="高中"
            android:textSize="49dp"
            ></RadioButton>
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="专科"
            android:textSize="49dp"
            ></RadioButton>
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="本科"
            android:textSize="49dp"
            ></RadioButton>
    </RadioGroup>

</LinearLayout>

package com.example.myapplication;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;

public class Assignment02_03 extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity02_03);
    }
}

<?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:layout_marginTop="70dp"
    android:layout_marginLeft="34dp"
    tools:context=".Assignment02_03">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="学过哪些课程"
        android:textSize="50dp">
    </TextView>
    <RadioGroup
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Java"
            android:textSize="49dp"
            ></RadioButton>
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Ios"
            android:textSize="49dp"
            ></RadioButton>
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Android"
            android:textSize="49dp"
            ></RadioButton>
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Html"
            android:textSize="49dp"
            ></RadioButton>
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Jsp"
            android:textSize="49dp"
            ></RadioButton>
    </RadioGroup>
</LinearLayout>

package com.example.myapplication;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class Assignment02_01 extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity02_01);
        Button button1 = findViewById(R.id.button1);
        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "button1 被点击", Toast.LENGTH_SHORT).show();
            }
        });
        Button button2 = findViewById(R.id.button2);
        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "button2 被点击", Toast.LENGTH_SHORT).show();
            }
        });
    }


    public void button0Clicked(View v) {
        Toast.makeText(getApplicationContext(), "button0 被点击", Toast.LENGTH_SHORT).show();
    }
}

<?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:paddingTop="100dp"
    tools:context=".Assignment02_01">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="button0"
        android:id="@+id/button0"
        android:onClick="button0Clicked">
    </Button>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="button1"
        android:id="@+id/button1">
    </Button>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="button2"
        android:id="@+id/button2">
    </Button>
</LinearLayout>

package com.example.myapplication;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;

public class LoginActivity02 extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login02);
    }

}

<?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=".LoginActivity02">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:layout_marginTop="25dp">

        <ImageView
            android:layout_width="232dp"
            android:layout_height="232dp"
            android:src="@mipmap/card"
            android:layout_gravity="center"></ImageView>


        <GridLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="用户"
                android:textSize="61dp">
            </TextView>
            <EditText
                android:layout_width="241dp"
                android:layout_height="wrap_content"
                android:textSize="52dp">
            </EditText>
        </GridLayout>
        <GridLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center">
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="密码"
                android:textSize="61dp">
            </TextView>
            <EditText
                android:layout_width="241dp"
                android:layout_height="wrap_content"
                android:password="true"
                android:textSize="52dp">
            </EditText>
        </GridLayout>
        <Button
            android:layout_width="259dp"
            android:layout_height="wrap_content"
            android:text="登陆"
            android:textSize="25dp"
            android:layout_gravity="center"
            android:layout_marginTop="25dp"></Button>
        <Button
            android:layout_width="259dp"
            android:layout_height="wrap_content"
            android:text="不注册, 跳过登陆"
            android:textSize="25dp"
            android:layout_gravity="center"
            android:layout_marginTop="25dp"></Button>
    </LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>