android studio gridview图片
时间: 2023-09-28 18:03:22 浏览: 43
要在Android Studio中使用GridView显示图片,你可以按照以下步骤操作:
1. 在你的布局文件中添加GridView组件,例如:
```xml
<GridView
android:id="@+id/grid_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:numColumns="3"
android:verticalSpacing="8dp"
android:horizontalSpacing="8dp"
android:gravity="center"
android:stretchMode="columnWidth" />
```
2. 创建一个适配器类来处理GridView中的图片,例如:
```java
public class ImageAdapter extends BaseAdapter {
private Context mContext;
private int[] mThumbIds;
public ImageAdapter(Context context, int[] thumbIds) {
mContext = context;
mThumbIds = thumbIds;
}
@Override
public int getCount() {
return mThumbIds.length;
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;
if (convertView == null) {
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(200, 200));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
} else {
imageView = (ImageView) convertView;
}
imageView.setImageResource(mThumbIds[position]);
return imageView;
}
}
```
3. 在你的Activity中设置适配器和图片资源数组,例如:
```java
GridView gridView = findViewById(R.id.grid_view);
int[] thumbIds = {
R.drawable.image1,
R.drawable.image2,
R.drawable.image3,
R.drawable.image4,
R.drawable.image5,
R.drawable.image6,
R.drawable.image7,
R.drawable.image8,
R.drawable.image9
};
ImageAdapter adapter = new ImageAdapter(this, thumbIds);
gridView.setAdapter(adapter);
```
这样你就可以在GridView中显示图片了。
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