处理 Recyclerview 中项目的触摸事件 - android
Handle touch event for items inside Recyclerview - android
我正在构建一个带有自定义布局(文本视图和开关)和自定义适配器的简单 recyclerview。
我的问题是我无法处理开关的点击事件(这会使其切换状态),我为 RecyclerView
构建了一个触摸监听器,每次我点击它都会触发Switch
.
经过大量试验后,开关触摸侦听器也会触发,但我想在单击开关时禁用 recyclerView 的触摸事件。
这是我的布局代码:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="60.0dip"
android:layout_weight="1.0"
android:orientation="horizontal"
android:paddingLeft="16dp">
<TextView
android:id="@+id/category_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="false"
android:layout_centerVertical="true"
android:layout_gravity="center_vertical"
android:text="Category Name"
android:textAppearance="?android:textAppearanceLarge" />
<android.support.v7.widget.SwitchCompat
android:id="@+id/category_switch"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_gravity="center_vertical"
android:checked="true"
android:clickable="true"
android:focusable="false"
android:focusableInTouchMode="false"
android:paddingRight="16dp" />
</RelativeLayout>
这是我的适配器代码:
public CategoryViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View row = layoutInflater.inflate(R.layout.single_row_category, parent, false);
CategoryViewHolder holder = new CategoryViewHolder(row);
return holder;
}
public void onBindViewHolder(CategoryViewHolder holder, final int position) {
AlarmCategory thisCat = categories.get(position);
holder.catName.setText(thisCat.getCategoryName());
holder.catStatus.setChecked(thisCat.isOn());
holder.catStatus.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
Log.d("fpp", view.getClass().getName() + " is clicked");
return true;
}
});
}
public class CategoryViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener {
public TextView catName;
public SwitchCompat catStatus;
public CategoryViewHolder(View itemView) {
super(itemView);
itemView.setOnCreateContextMenuListener(this);
catName = (TextView) itemView.findViewById(R.id.category_name);
catStatus = (SwitchCompat) itemView.findViewById(R.id.category_switch);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo contextMenuInfo) {
menu.add(0, 1001, 0, "Edit");//groupId, itemId, order, title
menu.add(0, 1002, 1, "Delete");
}
}
这是我的 recyclerView 触摸处理程序:
class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
private GestureDetector gestureDetector;
private ClickListener clickListener;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
@Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null) {
clickListener.onLongClick(child, recyclerView.getChildPosition(child));
}
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
clickListener.onClick(child, rv.getChildPosition(child));
Log.d("fpp", child.getClass().getName() + " is clicked");
return false;
}
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
在 onCreate
方法中,我通过 :
调用它
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(this, recyclerView, new ClickListener() {
@Override
public void onClick(View view, int position) {
Intent i = new Intent(CategoriesList.this, AlarmList.class);
i.putExtra("catID", categories.get(position).getCategoryID());
startActivity(i);
}
@Override
public void onLongClick(View view, int position) {
catPos = position;
}
}));
任何帮助,我已经尝试了很多解决方案,但遗憾的是没有任何效果。
提前致谢。
一种方法是更新您的持有者以在内部处理任何查看点击,例如
public class CategoryViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener, View.OnClickListener, CompoundButton.OnSetCheckedListener {
public CategoryViewHolder(View itemView) {
super(itemView);
itemView.setOnCreateContextMenuListener(this);
itemView.setOnClickListener(this);
catName = (TextView) itemView.findViewById(R.id.category_name);
catStatus = (SwitchCompat) itemView.findViewById(R.id.category_switch);
catStatus.setOnCheckChangedListener(this);
}
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// deal with catStatus change
}
public void onClick(View view) {
// deal with itemView click
}
}
创建classRecyclerTouchListener
public class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
private GestureDetector gestureDetector;
private ClickListener clickListener;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
@Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null) {
clickListener.onLongClick(child, recyclerView.getChildPosition(child));
}
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = rv.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
clickListener.onClick(child, rv.getChildPosition(child));
}
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
public interface ClickListener {
void onClick(View view, int position);
void onLongClick(View view, int position);
}
}
在 Activity
中使用此侦听器
recyclerview.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerview, new RecyclerTouchListener.ClickListener() {
@Override
public void onClick(View view, int position) {
// Write your code here
}
@Override
public void onLongClick(View view, int position) {
}
}));
我正在构建一个带有自定义布局(文本视图和开关)和自定义适配器的简单 recyclerview。
我的问题是我无法处理开关的点击事件(这会使其切换状态),我为 RecyclerView
构建了一个触摸监听器,每次我点击它都会触发Switch
.
经过大量试验后,开关触摸侦听器也会触发,但我想在单击开关时禁用 recyclerView 的触摸事件。
这是我的布局代码:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="60.0dip"
android:layout_weight="1.0"
android:orientation="horizontal"
android:paddingLeft="16dp">
<TextView
android:id="@+id/category_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="false"
android:layout_centerVertical="true"
android:layout_gravity="center_vertical"
android:text="Category Name"
android:textAppearance="?android:textAppearanceLarge" />
<android.support.v7.widget.SwitchCompat
android:id="@+id/category_switch"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_gravity="center_vertical"
android:checked="true"
android:clickable="true"
android:focusable="false"
android:focusableInTouchMode="false"
android:paddingRight="16dp" />
</RelativeLayout>
这是我的适配器代码:
public CategoryViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View row = layoutInflater.inflate(R.layout.single_row_category, parent, false);
CategoryViewHolder holder = new CategoryViewHolder(row);
return holder;
}
public void onBindViewHolder(CategoryViewHolder holder, final int position) {
AlarmCategory thisCat = categories.get(position);
holder.catName.setText(thisCat.getCategoryName());
holder.catStatus.setChecked(thisCat.isOn());
holder.catStatus.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
Log.d("fpp", view.getClass().getName() + " is clicked");
return true;
}
});
}
public class CategoryViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener {
public TextView catName;
public SwitchCompat catStatus;
public CategoryViewHolder(View itemView) {
super(itemView);
itemView.setOnCreateContextMenuListener(this);
catName = (TextView) itemView.findViewById(R.id.category_name);
catStatus = (SwitchCompat) itemView.findViewById(R.id.category_switch);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo contextMenuInfo) {
menu.add(0, 1001, 0, "Edit");//groupId, itemId, order, title
menu.add(0, 1002, 1, "Delete");
}
}
这是我的 recyclerView 触摸处理程序:
class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {
private GestureDetector gestureDetector;
private ClickListener clickListener;
public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
@Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null) {
clickListener.onLongClick(child, recyclerView.getChildPosition(child));
}
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
clickListener.onClick(child, rv.getChildPosition(child));
Log.d("fpp", child.getClass().getName() + " is clicked");
return false;
}
return false;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
在 onCreate
方法中,我通过 :
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(this, recyclerView, new ClickListener() {
@Override
public void onClick(View view, int position) {
Intent i = new Intent(CategoriesList.this, AlarmList.class);
i.putExtra("catID", categories.get(position).getCategoryID());
startActivity(i);
}
@Override
public void onLongClick(View view, int position) {
catPos = position;
}
}));
任何帮助,我已经尝试了很多解决方案,但遗憾的是没有任何效果。
提前致谢。
一种方法是更新您的持有者以在内部处理任何查看点击,例如
public class CategoryViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener, View.OnClickListener, CompoundButton.OnSetCheckedListener {
public CategoryViewHolder(View itemView) {
super(itemView);
itemView.setOnCreateContextMenuListener(this);
itemView.setOnClickListener(this);
catName = (TextView) itemView.findViewById(R.id.category_name);
catStatus = (SwitchCompat) itemView.findViewById(R.id.category_switch);
catStatus.setOnCheckChangedListener(this);
}
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// deal with catStatus change
}
public void onClick(View view) {
// deal with itemView click
}
}
创建classRecyclerTouchListener
public class RecyclerTouchListener implements RecyclerView.OnItemTouchListener { private GestureDetector gestureDetector; private ClickListener clickListener; public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) { this.clickListener = clickListener; gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() { @Override public boolean onSingleTapUp(MotionEvent e) { return true; } @Override public void onLongPress(MotionEvent e) { View child = recyclerView.findChildViewUnder(e.getX(), e.getY()); if (child != null && clickListener != null) { clickListener.onLongClick(child, recyclerView.getChildPosition(child)); } } }); } @Override public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) { View child = rv.findChildViewUnder(e.getX(), e.getY()); if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) { clickListener.onClick(child, rv.getChildPosition(child)); } return false; } @Override public void onTouchEvent(RecyclerView rv, MotionEvent e) { } @Override public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) { } public interface ClickListener { void onClick(View view, int position); void onLongClick(View view, int position); } }
在 Activity
中使用此侦听器recyclerview.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerview, new RecyclerTouchListener.ClickListener() { @Override public void onClick(View view, int position) { // Write your code here } @Override public void onLongClick(View view, int position) { } }));