无法自定义视图

Question

继使用typedarray是我styelable.xml

<?xml version="1.0" encoding="utf-8"?> 
<resources> 

    <declare-styleable name="MaterialIndicator"> 
    <attr name="mi_indicatorRadius" format="dimension|reference" /> 
    <attr name="mi_indicatorPadding" format="dimension|reference" /> 
    <attr name="mi_indicatorColor" format="color|reference" /> 
    </declare-styleable> 

</resources> 

林指上述styelable如下，

public MaterialIndicator(Context context, AttributeSet attrs, int defStyleAttr) { 
     super(context, attrs, defStyleAttr); 
     selectedIndicatorPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 
     indicatorPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 
     indicatorPaint.setColor(Color.BLACK); 
     indicatorPaint.setAlpha((int) (deselectedAlpha * 255)); 
     selectorRect = new RectF(); 
     if (isInEditMode()) { 
      count = 3; 
     } 
     TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.MaterialIndicator, 0, R.style.MaterialIndicator); 
     try { 
      selectedIndicatorPaint.setColor(typedArray.getColor(R.styleable.MaterialIndicator_mi_indicatorColor, 0)); 
     } finally { 
      typedArray.recycle(); 
     } 
    } 

但它引发以下错误消息

引起：java.lang.UnsupportedOperationException：无法转换为 颜色：类型= 0x1 at android.content.res.TypedArray.getColor（TypedArray.java:339）

我该如何解决这个问题？

Answer 1

从源代码here

* @throws UnsupportedOperationException if the attribute is defined but is * not an integer color or color state list.

变更色彩值：

  selectedIndicatorPaint.setColor(typedArray.getColor(R.styleable.MaterialIndicator_mi_indicatorColor, 0)); 

从零到的颜色值。在显色值是：

Color A color value defined in XML. The color is specified with an RGB value and alpha channel. You can use a color resource any place that accepts a hexadecimal color value. You can also use a color resource when a drawable resource is expected in XML (for example, android:drawable="@color/green").

https://developer.android.com/guide/topics/resources/more-resources.html#Color

编辑：像#80ff0000的东西应该工作