package cn.sinata.xldutils.adapter.util;
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import android.util.SparseArray;
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import android.view.View;
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import android.widget.TextView;
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import androidx.recyclerview.widget.RecyclerView;
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public class ViewHolder extends RecyclerView.ViewHolder {
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private View mConvertView;
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public ViewHolder(View itemView) {
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super(itemView);
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mConvertView = itemView;
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}
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@SuppressWarnings("unchecked")
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public <T extends View> T bind(int viewId) {// 通过ViewId得到View
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SparseArray<View> viewHolder = (SparseArray<View>) mConvertView
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.getTag();
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if (viewHolder == null) {
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viewHolder = new SparseArray<>();
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mConvertView.setTag(viewHolder);
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}
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View childView = viewHolder.get(viewId);
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if (childView == null) {
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childView = mConvertView.findViewById(viewId);
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viewHolder.put(viewId, childView);
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}
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return (T) childView;
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}
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/**
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* 设置TextView文字
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*
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* @param resId TextView的id
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* @param text 文字内容
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*/
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public void setText(int resId, CharSequence text) {
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if (bind(resId) instanceof TextView)
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((TextView) bind(resId)).setText(text);
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}
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}
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