android - 单击了哪个 subview ？

Question

我有一个包含 4 个 View 的 View。我使用方法 setOnClickListener 注册了事件 View.OnClickListener。

是否可以知道四个 child 中的哪个被压了？

Answer 1

尝试这种方式，希望这能帮助您解决问题。

ma​​in.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center">

   <Button
       android:id="@+id/button1"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="Button1"/>

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:text="Button2"/>

    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:text="Button3"/>

    <Button
        android:id="@+id/button4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:text="Button4"/>
</LinearLayout>

MyActivity.java

public class MyActivity extends Activity implements View.OnClickListener {


    private Button button1;
    private Button button2;
    private Button button3;
    private Button button4;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        button1 = (Button) findViewById(R.id.button1);
        button2 = (Button) findViewById(R.id.button2);
        button3 = (Button) findViewById(R.id.button3);
        button4 = (Button) findViewById(R.id.button4);

        button1.setOnClickListener(this);
        button2.setOnClickListener(this);
        button3.setOnClickListener(this);
        button4.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.button1:
                Toast.makeText(this,"Button 1 click",Toast.LENGTH_SHORT).show();
                break;
            case R.id.button2:
                Toast.makeText(this,"Button 2 click",Toast.LENGTH_SHORT).show();
                break;
            case R.id.button3:
                Toast.makeText(this,"Button 3 click",Toast.LENGTH_SHORT).show();
                break;
            case R.id.button4:
                Toast.makeText(this,"Button 4 click",Toast.LENGTH_SHORT).show();
                break;
            default:
                break;
        }
    }
}