android - 如何添加gridview setOnItemClickListener

Question

我有一个带有 81 个按钮的 GridView。我想将 clicklistener 添加到此 gridview，但它不可用。我已经添加了 OnItemClickListener 但它不起作用，我不明白为什么。代码没有错误。唯一不起作用的是 OnItemClickListener。

我的 gridview child 上面有一个按钮 (gridview_members.xml);

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

<Button
    android:id="@+id/city"
    android:layout_width="183dp"
    android:layout_height="90dp"
    android:textSize="19sp"
    android:textStyle="bold"
    android:text="Code\n\nCity"
    android:gravity="center"
    android:background="@drawable/city_btn_tablet" />

</RelativeLayout>

我的 ImageAdapter 类；

public class ImageAdapter extends BaseAdapter {
private Context mContext;

public ImageAdapter(Context c) {
    mContext = c;
}

public int getCount() {
    return 81;
}

public Object getItem(int position) {
    return null;
}

public long getItemId(int position) {
    return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    View gridView;

    gridView =new View(mContext);

    gridView = inflater.inflate(R.layout.gridview_members, null);

    Button city = (Button) gridView.findViewById(R.id.city);

    return gridView;
}

}

activity_main.xml 上的 Gridview 实现；

<GridView
android:id="@+id/gridview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:horizontalSpacing="5dp"
android:verticalSpacing="5dp"
android:gravity="center"
android:stretchMode="columnWidth"
android:numColumns="6" >
</GridView>

最后是我的 MainActivity.java 文件；

public class MainActivity extends Activity{

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

    GridView gridview = (GridView) findViewById(R.id.gridview);
    gridview.setAdapter(new ImageAdapter(this));

    gridview.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
            Toast.makeText(MainActivity.this, "" + position, Toast.LENGTH_SHORT).show();
        }
    });
}
}

Answer 1

GridView 是可点击的，无需在 GridView 中放置按钮。

要将监听器添加到网格，请添加以下代码:

// Implement On Item click listener
gridView1.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        switch (position) {
            case 0: 
                break;
            case 1:
                break;

        }
    }
}); 

依此类推，您可以将案例中的所有数字相加。