Android开textappearance运行 [英] android get textappearance runtime

问题描述

我已经重写了TextView的类，我想执行一些东西的时候textappearance小。

I have overriden the textview class and I want to perform some things when the textappearance is small.

我如何检查已设置的XML布局文件textappearance？

How do I check the textappearance that has been set by the xml layout file?

推荐答案

我已经找到了解决方法：

i have found a workaround:

private int getTextAppearance(AttributeSet attrs, int defStyle) {
    int answer = defStyle;
    for(int i=0; i<attrs.getAttributeCount(); i++) {
        if(attrs.getAttributeNameResource(i) == android.R.attr.textAppearance) {
            String attrStringValue = attrs.getAttributeValue(i);
            if(attrStringValue != null) {
                attrStringValue = attrStringValue.replace("?", "");
                answer = Integer.parseInt(attrStringValue);
            }
        }
    }
    return answer;
}

如果构造函数调用这个函数不是我可以检查已设置为textappearance的ID。

if the constructor calls this function than i can check the id that has been set as textappearance.

if(getTextAppearance(attrs, -1) == android.R.attr.textAppearanceSmall) {}

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