Android studio入門到精通實體實驗

Android studio入門到精通實體實驗

實驗內容：

----------------- 簡單的考試程式----------------

實驗步驟：

一、打開Android studio，新建一個專案；


二、寫入代碼；

<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=".MainActivity">

<TextView
    android:id="@+id/textView2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Android基礎知識測評"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintHorizontal_bias="0.498"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintVertical_bias="0.058" />

<EditText
    android:id="@+id/et_on"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="16dp"
    android:ems="3"
    android:inputType="textPersonName"
    app:layout_constraintBottom_toBottomOf="@+id/textView"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="@+id/textView"
    app:layout_constraintVertical_bias="0.615"
    android:layout_marginLeft="16dp" />

<TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="20dp"
    android:text="@string/di1ti"
    app:layout_constraintStart_toEndOf="@+id/et_on"
    app:layout_constraintTop_toBottomOf="@+id/textView2" />

<TextView
    android:id="@+id/textView3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="20dp"
    android:text="@string/di2ti"
    app:layout_constraintStart_toStartOf="@+id/et_on"
    app:layout_constraintTop_toBottomOf="@+id/textView" />

<RadioGroup
    android:id="@+id/radioGroup"
    android:layout_width="113dp"
    android:layout_height="64dp"
    app:layout_constraintStart_toStartOf="@+id/textView3"
    app:layout_constraintTop_toBottomOf="@+id/textView3">

    <RadioButton
        android:id="@+id/rd1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="開源的" />

    <RadioButton
        android:id="@+id/rd2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="非開源的" />
</RadioGroup>

<TextView
    android:id="@+id/textView4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="20dp"
    android:text="@string/di3ti"
    app:layout_constraintStart_toStartOf="@+id/textView3"
    app:layout_constraintTop_toBottomOf="@+id/radioGroup" />

<CheckBox
    android:id="@+id/cb2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="60dp"
    android:text="JAVA"
    app:layout_constraintStart_toEndOf="@+id/cb1"
    app:layout_constraintTop_toBottomOf="@+id/textView4"
    android:layout_marginLeft="60dp" />

<CheckBox
    android:id="@+id/cb1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="JDK"
    app:layout_constraintStart_toStartOf="@+id/textView4"
    app:layout_constraintTop_toBottomOf="@+id/textView4" />

<CheckBox
    android:id="@+id/cb3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="60dp"
    android:text="SDK"
    app:layout_constraintStart_toEndOf="@+id/cb2"
    app:layout_constraintTop_toBottomOf="@+id/textView4"
    android:layout_marginLeft="60dp" />

<TextView
    android:id="@+id/textView5"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="20dp"
    android:text="@string/di4ti"
    app:layout_constraintStart_toStartOf="@+id/textView4"
    app:layout_constraintTop_toBottomOf="@+id/cb1" />

<Spinner
    android:id="@+id/spinner"
    android:layout_width="130dp"
    android:layout_height="30dp"
    android:entries="@array/Systems"
    app:layout_constraintStart_toStartOf="@+id/textView5"
    app:layout_constraintTop_toBottomOf="@+id/textView5" />

<TextView
    android:id="@+id/textView6"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="104dp"
    android:layout_marginBottom="36dp"
    android:text="總分："
    app:layout_constraintBottom_toTopOf="@+id/button"
    app:layout_constraintStart_toStartOf="parent"
    android:layout_marginLeft="104dp" />

<TextView
    android:id="@+id/sorce"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="#F1ED06"
    android:text="   00   "
    app:layout_constraintBottom_toBottomOf="@+id/textView6"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.025"
    app:layout_constraintStart_toEndOf="@+id/textView6"
    app:layout_constraintTop_toTopOf="@+id/textView6"
    app:layout_constraintVertical_bias="0.0" />

<Button
    android:id="@+id/button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginBottom="20dp"
    android:text="@string/subscribe"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

package com.example.a37;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.CompoundButton;

public class MainActivity extends AppCompatActivity {
static int i = 0,cb_num = 0;
boolean rd_num = false,sp_num = false,et_num = false;
TextView sorce;
TextView et_on;
RadioGroup rd;
Button button;
CheckBox checkBox1;
CheckBox checkBox2;
CheckBox checkBox3;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    //定義
    et_on = findViewById(R.id.et_on);
    sorce = findViewById(R.id.sorce);
    rd = findViewById(R.id.radioGroup);
    button = findViewById(R.id.button);
    checkBox1 = findViewById(R.id.cb1);
    checkBox2 = findViewById(R.id.cb2);
    checkBox3 = findViewById(R.id.cb3);

    //為每個復選按鈕設定狀態改變監聽器
    checkBox1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            // TODO Auto-generated method stub
            if(isChecked) cb_num++;
            else cb_num--;
        }
    });
    checkBox2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            // TODO Auto-generated method stub
            if(isChecked) cb_num--;
            else cb_num++;
        }
    });
    checkBox3.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            // TODO Auto-generated method stub
            if(isChecked) cb_num++;
            else cb_num--;
        }
    });

    //設定單選按鈕組添加事件監聽
    rd.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            //獲取被選擇的單選按鈕
            RadioButton r = (RadioButton) findViewById(checkedId);
            if(r.getText().equals("開源的")) rd_num = true;
            else rd_num = false;
        }
    });

    //edittext監聽
    et_on.setOnEditorActionListener(new TextView.OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView textView, int i, KeyEvent keyEvent) {
            if(et_on.getText().toString().equals("2")) et_num = true;
            else et_num = false;
            return false;
        }
    });

    //獲取下拉串列物件
    final Spinner spinner = (Spinner) findViewById(R.id.spinner);
    //為Spinner添加選擇監聽器
    spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        //資料選擇事件處理
        public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
            String[] Systems = getResources().getStringArray(R.array.Systems);
            //顯示選擇結果
            if(Systems[pos].equals("Linux")) sp_num = true;
            else sp_num = false;
        }
        //以下方法重寫必須有
        @Override
        public void onNothingSelected(AdapterView<?> parent) {
            // Another interface callback
        }
    });

    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if(cb_num == 2) i++;
            if(sp_num) i++;
            if(et_num) i++;
            if(rd_num) i++;
            sorce.setText("   "+(i*50)+"   ");
            if(i == 4)
                Toast.makeText(MainActivity.this,"你真棒！祝賀你！", Toast.LENGTH_SHORT).show();
            else if(i == 2)
                Toast.makeText(MainActivity.this,"成績合格！", Toast.LENGTH_SHORT).show();
            else
                Toast.makeText(MainActivity.this,"成績不合格！", Toast.LENGTH_SHORT).show();
        }
    });
}

}

<string name="app_name" translatable="false">zuoye06_231</string>
<string name="di1ti" translatable="false">選擇題</string>
<string name="di2ti" translatable="false">Android作業系統是（50分）</string>
<string name="di3ti" translatable="false">Android Studio 開發Android程式，還需安裝：（    ）（50分）</string>

<string name="subscribe" translatable="false">提交</string>
<string name="di4ti" translatable="false">" "</string>

三、運行結果截圖：
1、（打開程式界面）

2、（回答錯誤界面）

3、（通過考試界面）

到此本次實驗完成！