安卓自定义imageview爆红在xml中写不出来
时间: 2024-03-17 15:42:32 浏览: 137
如果您要自定义ImageView并在XML文件中使用它,您需要遵循以下步骤:
1. 创建一个类来扩展ImageView类
```java
public class CustomImageView extends ImageView {
// your custom implementation goes here
}
```
2. 重写构造函数
```java
public CustomImageView(Context context) {
super(context);
// your custom implementation goes here
}
public CustomImageView(Context context, AttributeSet attrs) {
super(context, attrs);
// your custom implementation goes here
}
public CustomImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// your custom implementation goes here
}
```
3. 在XML布局文件中使用您的自定义ImageView
```xml
<com.example.app.CustomImageView
android:id="@+id/custom_image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/your_image_resource" />
```
请确保您在XML布局文件中使用正确的包名和类名来引用自定义ImageView。如果您遇到问题,请检查您的类定义和XML布局文件中的拼写是否正确。
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