androidbutton覆盖，android button imagebutton 区别,android - 可点击的ImageView和ImageButt

ImageButton继承自ImageView

public class ImageButton extends ImageView {

androidbutton覆盖？public ImageButton(Context context) {

this(context, null);

}

imagebutton添加图片，public ImageButton(Context context, AttributeSet attrs) {

this(context, attrs, com.android.internal.R.attr.imageButtonStyle);

}

安卓button代码？public ImageButton(Context context, AttributeSet attrs, int defStyle) {

super(context, attrs, defStyle);

setFocusable(true);

android浮动工具栏、}

@Override

protected boolean onSetAlpha(int alpha) {

imageurl、return false;

}

@Override

public void onInitializeAccessibilityEvent(AccessibilityEvent event) {

super.onInitializeAccessibilityEvent(event);

event.setClassName(ImageButton.class.getName());

}

@Override

public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {

super.onInitializeAccessibilityNodeInfo(info);

info.setClassName(ImageButton.class.getName());

}

正如@Micheal描述的那样，我只是在他的回答中添加细节