Android搜索具有類似文本的Radiobuttons

Question

我爲我的應用程序設置了搜索界面。我怎樣才能顯示基於我的搜索結果作爲字符串返回的文本包含搜索字符串的按鈕？

Answer 1

您可以循環通過的ViewGroup的孩子來搜索文本：

public static List<View> searchViews(ViewGroup group, String query) { 
    ArrayList<View> foundViews = new ArrayList<View>(); 
    query = query.toLowerCase(); 

    for (int i = 0; i < group.getChildCount(); i++) { 
    View view = group.getChildAt(i); 
    String text = null; 
    Class c = view.getClass(); 
    if (view instanceof Button) { // RadioButton is actually a subclass of Button 
     Button rb = (Button)view; 
     text = (String) rb.getText(); 
    } 
    // ... and maybe check other types of View 

    if (text == null) { 
     continue; 
    } 

    text = text.toLowerCase(); 
    if (text.contains(query)) { 
     foundViews.add(view); 
    } 
    } 

    return foundViews; 
}