通过Android Preference以编程方式设置图标（@ + android：id / icon）的大小

Question

I subclassed an Android Preference to load my own layout (very slightly modified), but my layout still has the built-in icon provided by the Preference class:

<ImageView
    android:id="@+android:id/icon"
    android:layout_width="20dp"
    android:layout_height="20dp/>

I can't retrieve a reference to the ImageView programatically like the Android Preference class does because com.android.internal.R cannot be resolved:

ImageView imageView = (ImageView) view.findViewById(com.android.internal.R.id.icon);

Is it possible to programmatically change the size. Ideally, I wouldn't create various layouts for each size I want. I think the solution here is to pass in an AttributeSet to my constructor and have it set the size of the icon, but I can't figure out how to do this.

Answer 1

Your ImageView id declaration is wrong in xml correct it :

android:id="@android:id/icon"

Initialize ImageView this way in activity :

ImageView imageView = (ImageView) view.findViewById(android.R.id.icon);

Answer 2

更改为@android:id/icon并导入android.R.id.icon

Answer 3

Try this solution:

imageView.post(new Runnable() {
@Override
public void run() {
imageView.setHeight(VALUE)
imageView.setWidth(VALUE)
}
})