android - 检查布局是否包含任何 ImageView 或 TextView android

Question

<分区>

Answer 1

如果你有一个父 View 的子实例，你想在其中迭代，你可以遵循这个实现。

您可以按View 类型、id 或标签进行搜索。

//layout being the child of the view you have
View parent = layout.getParent();
for (int i = 0; i < parent.getChildCount(); i++) {
    View v = parent.getChildAt(i);

    //view type
    if (v instanceof ImageView) {
        //whatever
    } else if (v instanceof TextView) {
        //whatever
    } //

    //by tag
    if (v.getTag() instanceof yourObject) {//or == yourObject
        //whatever
    } else if (v.getTag() instanceof yourOtherObject) {//or == yourOtherObject
        //whatever
    } 

    //by id
     if (v.getId().equals(searchingForView.getId())) {
        //whatever
    } else if (v.getId().equals(searchingForOtherView.getId())) {
        //whatever
    } 


}

但是如果你知道id，你显然可以做到

View parent = layout.getParent();
View lookingForThisView = parent.findViewById(R.id.lookingforthisviewid);