Android studio篮球赛事记分器

以下是一个基础的 Android Studio 篮球赛事记分器的编码示例：

1. 在 activity_main.xml 文件中添加以下代码：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/teamATextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Team A"
        android:textSize="30dp"
        android:layout_gravity="center_horizontal"/>

    <TextView
        android:id="@+id/teamAScoreTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="0"
        android:textSize="50dp"
        android:layout_gravity="center_horizontal"/>

    <Button
        android:id="@+id/teamA3PointsButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="3 Points"
        android:layout_gravity="center_horizontal"
        android:onClick="teamA3Points"/>

    <Button
        android:id="@+id/teamA2PointsButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="2 Points"
        android:layout_gravity="center_horizontal"
        android:onClick="teamA2Points"/>

    <Button
        android:id="@+id/teamAFreeThrowButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Free Throw"
        android:layout_gravity="center_horizontal"
        android:onClick="teamAFreeThrow"/>

    <TextView
        android:id="@+id/teamBTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Team B"
        android:textSize="30dp"
        android:layout_gravity="center_horizontal"/>

    <TextView
        android:id="@+id/teamBScoreTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="0"
        android:textSize="50dp"
        android:layout_gravity="center_horizontal"/>

    <Button
        android:id="@+id/teamB3PointsButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="3 Points"
        android:layout_gravity="center_horizontal"
        android:onClick="teamB3Points"/>

    <Button
        android:id="@+id/teamB2PointsButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="2 Points"
        android:layout_gravity="center_horizontal"
        android:onClick="teamB2Points"/>

    <Button
        android:id="@+id/teamBFreeThrowButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Free Throw"
        android:layout_gravity="center_horizontal"
        android:onClick="teamBFreeThrow"/>

</LinearLayout>

2. 在 MainActivity.java 文件中添加以下代码：

public class MainActivity extends AppCompatActivity {
    private int teamAScore = 0;
    private int teamBScore = 0;
    private TextView teamAScoreTextView;
    private TextView teamBScoreTextView;

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

        teamAScoreTextView = findViewById(R.id.teamAScoreTextView);
        teamBScoreTextView = findViewById(R.id.teamBScoreTextView);
    }

    public void teamA3Points(View view) {
        teamAScore += 3;
        teamAScoreTextView.setText(Integer.toString(teamAScore));
    }

    public void teamA2Points(View view) {
        teamAScore += 2;
        teamAScoreTextView.setText(Integer.toString(teamAScore));
    }

    public void teamAFreeThrow(View view) {
        teamAScore += 1;
        teamAScoreTextView.setText(Integer.toString(teamAScore));
    }

    public void teamB3Points(View view) {
        teamBScore += 3;
        teamBScoreTextView.setText(Integer.toString(teamBScore));
    }

    public void teamB2Points(View view) {
        teamBScore += 2;
        teamBScoreTextView.setText(Integer.toString(teamBScore));
    }

    public void teamBFreeThrow(View view) {
        teamBScore += 1;
        teamBScoreTextView.setText(Integer.toString(teamBScore));
    }
}

3. 运行应用程序，您将看到两个队伍的名称和得分，以及每个队伍的 3 分、2 分和罚球按钮。每当您单击一个按钮时，相应队伍的得分将增加，并在屏幕上更新。

希望这可以帮助您入门 Android 编程！