Android Invisible CustomView

Question

我已经创建了一个自定义RelativeLayout，其中有两个ImageView，一个在另一个之上，第一个应该显示用户选择的图像，第二个显示出来后他选择并行动作为一个删除按钮（小X图标），我的问题是即使在应用程序的开始这个自定义视图是不可见的，但我仍然可以点击它。如果我使用它的背景，我可以看到它。 这里是我的自定义视图类和XML

public class ImageViewWithIcon extends RelativeLayout{ 
    public ImageView  image, icon; 
    private final Context context; 

    public ImageViewWithIcon(final Context context) 
    { 
     super(context); 
     this.context = context; 
    } 

    public ImageViewWithIcon(final Context context, final AttributeSet attrs) 
    { 
     super(context, attrs); 
     LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     inflater.inflate(R.layout.image_view_with_icon, this, true); 
     RelativeLayout rl = (RelativeLayout) getChildAt(0); 
     icon = (ImageView) findViewById(R.id.ImageViewWithIcon_icon); 
     image = (ImageView) findViewById(R.id.ImageViewWithIcon_image); 
     // image.setLayoutParams(new LayoutParams(400, 400)); 
     this.context = context; 
    } 

    public ImageViewWithIcon(final Context context, final AttributeSet attrs, final int defStyle) 
    { 
     super(context, attrs, defStyle); 
     this.context = context; 
    } 

    @Override 
    protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) 
    { 
     Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.new_message_picture_button); 
     int width; 
     if (getLayoutParams().width == android.view.ViewGroup.LayoutParams.WRAP_CONTENT) 
      width = bmp.getWidth(); 
     else 
      if (getLayoutParams().width == android.view.ViewGroup.LayoutParams.MATCH_PARENT || getLayoutParams().width == android.view.ViewGroup.LayoutParams.FILL_PARENT) 
       width = MeasureSpec.getSize(widthMeasureSpec); 
      else 
       width = getLayoutParams().width; 
     int height = 100; 
     if (getLayoutParams().height == android.view.ViewGroup.LayoutParams.WRAP_CONTENT) 
      height = bmp.getHeight(); 
     else 
      if (getLayoutParams().height == android.view.ViewGroup.LayoutParams.MATCH_PARENT || getLayoutParams().height == android.view.ViewGroup.LayoutParams.FILL_PARENT) 
       height = MeasureSpec.getSize(heightMeasureSpec); 
      else 
       height = getLayoutParams().height; 
     bmp.recycle(); 
     setMeasuredDimension(width | MeasureSpec.EXACTLY, height | MeasureSpec.EXACTLY); 
    }} 


<merge xmlns:android="http://schemas.android.com/apk/res/android" > 

    <RelativeLayout 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" > 

     <ImageView 
      android:id="@+id/ImageViewWithIcon_image" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:scaleType="centerCrop" 
      android:background="@drawable/new_message_picture_button" /> 

     <ImageView 
      android:id="@+id/ImageViewWithIcon_icon" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_alignBottom="@id/ImageViewWithIcon_image" 
      android:visibility="visible" 
      android:src="@drawable/new_message_close_picture"/> 
    </RelativeLayout> 
</merge> 

在onMessure的第一行有BMP与宽度和234px

高度，即使我创建一个像setImage()的方法将它从Activity调用，图像已设置，但仍然不可见。

Answer 1

你的意思是？

<RelativeLayout 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" > 

      <ImageViewWithIcon 
       android:id="@+id/ImageViewWithIcon_image" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:scaleType="centerCrop" 
       android:background="@drawable/new_message_picture_button" /> 

      <ImageViewWithIcon 
       android:id="@+id/ImageViewWithIcon_icon" 
       android:layout_width="wrap_content" 
       android:layout_height="wrap_content" 
       android:layout_alignBottom="@id/ImageViewWithIcon_image" 
       android:visibility="visible" 
       android:src="@drawable/new_message_close_picture"/>