android recyclerView上item的EditextView焦点乱跑和数据混乱
**一:这部分代码是解决数据混乱的问题**
public StandGradeScoreListAdapter(Context context) {
this.context = context;
inputMethodManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
}
inputMethodManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
//通过设置tag，防止position紊乱
holder.editReduceMark.setTag(position);
holder.editReduceMark.clearFocus();
//1、为了避免TextWatcher在第2步被调用，提前将他移除。
if (holder.editReduceMark.getTag() != null && holder.editReduceMark.getTag() instanceof TextWatcher) {
holder.editReduceMark.removeTextChangedListener((TextWatcher) holder.editReduceMark.getTag());
holder.editReduceMark.clearFocus();
inputMethodManager.hideSoftInputFromWindow(holder.editReduceMark.getWindowToken(), 0);
}
// 第2步：移除TextWatcher之后，设置EditText的Text。
holder.editReduceMark.setTextColor(context.getResources().getColor(R.color.color_ff333333));
if (standardList.get(position).getExaminerRemark()!=null){
holder.editReduceMark.setText(standardList.get(position).getExaminerRemark());
}else {
holder.editReduceMark.setText("");
}
TextWatcher watcher = new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void afterTextChanged(Editable editable) {
if (holder.editReduceMark.hasFocus()) {//判断当前EditText是否有焦点在
if (mTextListener!=null){
//通过接口回调将数据传递到Activity中
mTextListener.onTextChanged((Integer) holder.editReduceMark.getTag(), editable.toString());//holder.editReduceMark.getText().toString()
}
}
}
};
//设置EditText的焦点监听器判断焦点变化，当有焦点时addTextChangedListener，失去焦点时removeTextChangedListener
holder.editReduceMark.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
holder.editReduceMark.addTextChangedListener(watcher);
new Handler().postDelayed(() -> holder.editReduceMark.setSelection(holder.editReduceMark.getText().toString().length()), 30);
} else {
holder.editReduceMark.removeTextChangedListener(watcher);
holder.editReduceMark.clearFocus();
inputMethodManager.hideSoftInputFromWindow(holder.editReduceMark.getWindowToken(), 0);
}
}
});
holder.editReduceMark.clearFocus();
二：新建recyclerView的适配管理器FoucsLinearLayoutManager
public class FoucsLinearLayoutManager extends LinearLayoutManager {
public FoucsLinearLayoutManager(Context context) {
super(context);
}
public FoucsLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {
super(context, orientation, reverseLayout);
}
public FoucsLinearLayoutManager(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
/**
* public boolean requestChildRectangleOnScreen (View child, Rect rectangle, boolean immediate)
*
* 当组里的某个子视图需要被定位在屏幕的某个矩形范围时，调用此方法。重载此方法的ViewGroup可确认以下几点：
*
* * 子项目将是组里的直系子项
* * 矩形将在子项目的坐标体系中
* 重载此方法的ViewGroup应该支持以下几点：
* * 若矩形已经是可见的，则没有东西会改变
* * 为使矩形区域全部可见，视图将可以被滚动显示
* 参数
* child 发出请求的子视图
* rectangle 子项目坐标系内的矩形，即此子项目希望在屏幕上的定位
* immediate 设为true，则禁止动画和平滑移动滚动条
*
* 返回值
* 进行了滚动操作的这个组（group），是否处理此操作。
*
* @param parent
* @param child
* @param rect
* @param immediate
* @return
*/
@Override
public boolean requestChildRectangleOnScreen(RecyclerView parent, View child, Rect rect, boolean immediate) {
//这里的child 是整个HeadView 而不是某个具体的editText
LogUtil.e("requestChildRectangleOnScreen()====> chlild==" + child.getId(), "parent==" + parent.getId());
return false;
}
@Override
public boolean requestChildRectangleOnScreen(RecyclerView parent, View child, Rect rect, boolean immediate, boolean focusedChildVisible) {
//这里的child 是整个HeadView 而不是某个具体的editText
LogUtil.e("requestChildRectangleOnScreen( focusedChildVisible=)====> chlild==" + child.getId() , "parent==" + parent.getId());
return false;
}
}
三：直接调用
1） recyclerView.setLayoutManager(new FoucsLinearLayoutManager(getContext()));//说明下不要用系统的LinearLayoutManager
2）获取数据的回调方法：
scoreListAdapter.setOnTextChangeListener(new StandGradeScoreListAdapter.onTextChangeListener() {
//带扣分备注
private Map
@Override
public void onTextChanged(int postion, String content) {
factorList.get(position).getStandardList().get(postion).setExaminerRemark(content);
map = new HashMap<>();
StandardListsBean.DataBean.ContentListBean.FactorListBean.StandardListBean listBean1=new StandardListsBean.DataBean.ContentListBean.FactorListBean.StandardListBean();
listBean1.scoreTableStandardId=factorList.get(position).getStandardList().get(postion).getScoreTableStandardId();
listBean1.remark=factorList.get(position).getStandardList().get(postion).getExaminerRemark();
LogUtil.i(“listBean1Remark”,"==="+factorList.get(position).getStandardList().get(postion).getExaminerRemark());
map.put(factorList.get(position).getStandardList().get(postion).getScoreTableStandardId(), listBean1);
for (Integer key : map.keySet()) {
StandardListsBean.DataBean.ContentListBean.FactorListBean.StandardListBean standardListBean = map.get(key);
boolean door = true;
for (int i = 0; i 此部分代码亲测有效，解决了recyclerView嵌套recyclerView,并且子recyclerView上item嵌套多个EdittextView，由于recyclerView的复用问题，导致的数据混乱和焦点胡乱跑，总是跑到页面顶部或者其他item上，体验极度不好，所以再次做个记录