回收站视图中的行项目不响应点击事件
Row item in recycler view does not respond to click event
以下是我的行项目的布局:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="@android:color/white"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:background="?android:attr/selectableItemBackground"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/img_query"
android:layout_width="64dp"
android:layout_height="64dp"
android:layout_gravity="left|top"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="2dp"
android:src="@drawable/ic_anoun_red" />
<TextView
android:id="@+id/txt_ques_sub"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="4dp"
android:layout_marginTop="12dp"
android:layout_toRightOf="@+id/img_query"
android:text="Problem in Merge sort"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/primary_text_light"
android:textStyle="bold" />
<TextView
android:id="@+id/txt_ques_detail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="4dp"
android:layout_marginLeft="4dp"
android:layout_marginTop="2dp"
android:layout_below="@+id/img_query"
android:text="@string/sample_query_detail"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/primary_text_light" />
<TextView
android:id="@+id/txt_asked_by"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/txt_ques_detail"
android:layout_marginRight="4dp"
android:layout_marginTop="2dp"
android:text="Tabish Butt"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@color/lightorange" />
<TextView
android:id="@+id/txt_ques_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/txt_asked_by"
android:layout_marginRight="4dp"
android:text="07:15 am"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/secondary_text_dark" />
<TextView
android:id="@+id/txt_ques_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/txt_ques_time"
android:layout_marginRight="4dp"
android:text="25 SEP 2015"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/secondary_text_dark" />
<TextView
android:id="@+id/txt_replies"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/txt_ques_date"
android:layout_alignParentLeft="true"
android:layout_marginLeft="4dp"
android:text="@string/default_num_answers"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@color/primary_dark_material_light" />
<View
android:id="@+id/divider"
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_below="@+id/txt_replies"
android:alpha="0.12"
android:background="@android:color/black" />
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/divider"
android:orientation="vertical">
<Button
android:id="@+id/btn_answer"
style="?android:attr/borderlessButtonStyle"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_gravity="center"
android:drawableLeft="@android:drawable/ic_media_play"
android:text="ANSWER"
android:textColor="@color/primary_dark_material_light" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
</LinearLayout>
点击代码如下:
holder.setClickListener(new MyViewHolder.ClickListener() {
@Override
public void onClick(View v, int position, boolean isLongClick) {
if(isLongClick)
{
/* TASK TO PERFORM AT LONG CLICKS */
Toast.makeText(context, "Long click acheived", Toast.LENGTH_LONG).show();
}
else
{
/* TASK TO PERFORM AT CLICKS */
Toast.makeText(context, "Click Event", Toast.LENGTH_LONG).show();
}
}
});
现在,当我 运行 这一切正常时,除了单击行项目不会产生任何响应(在这种情况下为祝酒词)
任何帮助将不胜感激。需要帮助!
下面是MyViewHolder中处理点击事件的方法class:
static class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener,View.OnLongClickListener {
//Following represent grid_layout item
TextView txtFileName;
TextView txtFileIssueTime;
Button btnAnswer;
private ClickListener clickListener;
public MyViewHolder(View itemView) {
super(itemView);
//VIEWS IN LAYOUT BEING INITIALIZED
btnAnswer = (Button) itemView.findViewById(R.id.btn_answer);
itemView.setOnClickListener(this);
itemView.setOnLongClickListener(this);
}
/* Interface for handling clicks - both normal and long ones. */
public interface ClickListener {
/**
* Called when the view is clicked.
*
* @param v view that is clicked
* @param position of the clicked item
* @param isLongClick true if long click, false otherwise
*/
public void onClick(View v, int position, boolean isLongClick);
}
/* Setter for listener. */
public void setClickListener(ClickListener clickListener) {
this.clickListener = clickListener;
}
@Override
public void onClick(View v) {
// If not long clicked, pass last variable as false.
clickListener.onClick(v, getAdapterPosition(), false);
}
@Override
public boolean onLongClick(View v) {
// If long clicked, passed last variable as true.
clickListener.onClick(v, getAdapterPosition(), true);
return true;
}
}
无需为 itemView 设置点击监听器,您已经在 ViewHolder 中实现了点击监听器。
我仍然不确定你是从哪里调用 "holder.setClickListener(...)",但假设你是从 Activity 调用的,我宁愿遵循这种方法:
1) 将 ClickListener 作为一个独立的接口(在你的 holder 之外),你以后可以在不同的适配器中使用它。
2) 将 ClickListener 添加到您的适配器和 ViewHolder。
3) 设置适配器时,将您的 Activity/Fragment 作为侦听器传递(它们应该实现 ClickListener 接口)
4) 创建ViewHolder时,将监听器也传递给ViewHolder,并将其设置为变量(您已定义)。
5) 正如您已经做的那样,在 onClick 方法中,调用 clickListener 方法。
如果可行,请告诉我。这正是我经常做的。
尝试将 clickable
移动到父 LinearLayout
中,而不是嵌套的 LinearLayout
编辑:
实际上,您的布局应该只是
<FrameLayout
android:background:"@color/white"
android:foreground:"?selectableItemBackground">
<RelativeLayout />
</FrameLayout>
以下是我的行项目的布局:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="@android:color/white"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:background="?android:attr/selectableItemBackground"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/img_query"
android:layout_width="64dp"
android:layout_height="64dp"
android:layout_gravity="left|top"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="2dp"
android:src="@drawable/ic_anoun_red" />
<TextView
android:id="@+id/txt_ques_sub"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="4dp"
android:layout_marginTop="12dp"
android:layout_toRightOf="@+id/img_query"
android:text="Problem in Merge sort"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/primary_text_light"
android:textStyle="bold" />
<TextView
android:id="@+id/txt_ques_detail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="4dp"
android:layout_marginLeft="4dp"
android:layout_marginTop="2dp"
android:layout_below="@+id/img_query"
android:text="@string/sample_query_detail"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/primary_text_light" />
<TextView
android:id="@+id/txt_asked_by"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/txt_ques_detail"
android:layout_marginRight="4dp"
android:layout_marginTop="2dp"
android:text="Tabish Butt"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@color/lightorange" />
<TextView
android:id="@+id/txt_ques_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/txt_asked_by"
android:layout_marginRight="4dp"
android:text="07:15 am"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/secondary_text_dark" />
<TextView
android:id="@+id/txt_ques_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/txt_ques_time"
android:layout_marginRight="4dp"
android:text="25 SEP 2015"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/secondary_text_dark" />
<TextView
android:id="@+id/txt_replies"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/txt_ques_date"
android:layout_alignParentLeft="true"
android:layout_marginLeft="4dp"
android:text="@string/default_num_answers"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@color/primary_dark_material_light" />
<View
android:id="@+id/divider"
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_below="@+id/txt_replies"
android:alpha="0.12"
android:background="@android:color/black" />
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/divider"
android:orientation="vertical">
<Button
android:id="@+id/btn_answer"
style="?android:attr/borderlessButtonStyle"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_gravity="center"
android:drawableLeft="@android:drawable/ic_media_play"
android:text="ANSWER"
android:textColor="@color/primary_dark_material_light" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
</LinearLayout>
点击代码如下:
holder.setClickListener(new MyViewHolder.ClickListener() {
@Override
public void onClick(View v, int position, boolean isLongClick) {
if(isLongClick)
{
/* TASK TO PERFORM AT LONG CLICKS */
Toast.makeText(context, "Long click acheived", Toast.LENGTH_LONG).show();
}
else
{
/* TASK TO PERFORM AT CLICKS */
Toast.makeText(context, "Click Event", Toast.LENGTH_LONG).show();
}
}
});
现在,当我 运行 这一切正常时,除了单击行项目不会产生任何响应(在这种情况下为祝酒词)
任何帮助将不胜感激。需要帮助!
下面是MyViewHolder中处理点击事件的方法class:
static class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener,View.OnLongClickListener {
//Following represent grid_layout item
TextView txtFileName;
TextView txtFileIssueTime;
Button btnAnswer;
private ClickListener clickListener;
public MyViewHolder(View itemView) {
super(itemView);
//VIEWS IN LAYOUT BEING INITIALIZED
btnAnswer = (Button) itemView.findViewById(R.id.btn_answer);
itemView.setOnClickListener(this);
itemView.setOnLongClickListener(this);
}
/* Interface for handling clicks - both normal and long ones. */
public interface ClickListener {
/**
* Called when the view is clicked.
*
* @param v view that is clicked
* @param position of the clicked item
* @param isLongClick true if long click, false otherwise
*/
public void onClick(View v, int position, boolean isLongClick);
}
/* Setter for listener. */
public void setClickListener(ClickListener clickListener) {
this.clickListener = clickListener;
}
@Override
public void onClick(View v) {
// If not long clicked, pass last variable as false.
clickListener.onClick(v, getAdapterPosition(), false);
}
@Override
public boolean onLongClick(View v) {
// If long clicked, passed last variable as true.
clickListener.onClick(v, getAdapterPosition(), true);
return true;
}
}
无需为 itemView 设置点击监听器,您已经在 ViewHolder 中实现了点击监听器。
我仍然不确定你是从哪里调用 "holder.setClickListener(...)",但假设你是从 Activity 调用的,我宁愿遵循这种方法:
1) 将 ClickListener 作为一个独立的接口(在你的 holder 之外),你以后可以在不同的适配器中使用它。
2) 将 ClickListener 添加到您的适配器和 ViewHolder。
3) 设置适配器时,将您的 Activity/Fragment 作为侦听器传递(它们应该实现 ClickListener 接口)
4) 创建ViewHolder时,将监听器也传递给ViewHolder,并将其设置为变量(您已定义)。
5) 正如您已经做的那样,在 onClick 方法中,调用 clickListener 方法。
如果可行,请告诉我。这正是我经常做的。
尝试将 clickable
移动到父 LinearLayout
中,而不是嵌套的 LinearLayout
编辑:
实际上,您的布局应该只是
<FrameLayout
android:background:"@color/white"
android:foreground:"?selectableItemBackground">
<RelativeLayout />
</FrameLayout>