如何解决cardView选择上的持久角
我在列表项的背景上设置了半径为角的cardView。 问题是当我单击项目/卡片选择时,它包括角。起初,我尝试使用drawable / shape,然后尝试使用9个补丁图像,但结果却相同。 我注意到,当我在卡上添加clickable true时,一切看起来都很好,但是意图不再存在。
我的代码:
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardCornerRadius="15dp"
card_view:contentPadding="8dp"
android:background="@android:color/white"
android:foreground="?attr/selectableItemBackground">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@android:color/transparent">
<TextView
android:id="@+id/section"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:textSize="12sp"
android:textStyle="italic"
tools:text="Section"
android:background="@android:color/transparent"/>
<TextView
android:id="@+id/time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:textSize="12sp"
tools:text="29 May 1981"
android:background="@android:color/transparent"/>
<TextView
android:id="@+id/date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toStartOf="@+id/time"
android:textSize="12sp"
tools:text="3:00"
android:background="@android:color/transparent"
tools:ignore="RelativeOverlap" />
<TextView
android:id="@+id/title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#28055E"
android:textSize="16sp"
android:textStyle="bold"
tools:text="some text"
android:layout_below="@+id/section"
android:background="@android:color/transparent"/>
<TextView
android:id="@+id/author"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="12sp"
tools:text="Published by: Section's Name"
android:layout_below="@+id/title"
android:background="@android:color/transparent"/>
</RelativeLayout>
</androidx.cardview.widget.CardView>
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import java.util.List;
public class NewsArrayAdapter extends ArrayAdapter<News> {
public NewsArrayAdapter(Context context,List<News> news) {
super(context,news);
}
@Override
public View getView(int position,View convertView,ViewGroup parent) {
View listItemView = convertView;
if (listItemView == null) {
listItemView = LayoutInflater.from(getContext()).inflate(
R.layout.list_item,parent,false);
}
News currentNews = getItem(position);
TextView titleView = listItemView.findViewById(R.id.title);
assert currentNews != null;
titleView.setText(currentNews.getTitle());
TextView sectionView = listItemView.findViewById(R.id.section);
sectionView.setText(currentNews.getSection());
TextView authorView = listItemView.findViewById(R.id.author);
authorView.setText(currentNews.getAuthor());
TextView dateView = listItemView.findViewById(R.id.date);
dateView.setText(currentNews.getDate());
TextView timeView = listItemView.findViewById(R.id.time);
timeView.setText(currentNews.getTime());
return listItemView;
}}
`` in main activity:
newsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView,View view,int position,long l) {
// Find the current news that was clicked on
News currentNews = mAdapter.getItem(position);
// Convert the String URL into a URI object (to pass into the Intent constructor)
Uri newsUri = Uri.parse(currentNews.getUrl());
// Create a new intent to view the news URI
Intent websiteIntent = new Intent(Intent.ACTION_VIEW,newsUri);
// Send the intent to launch a new activity
startActivity(websiteIntent);
}
});
解决方法
@Haider Saleem和@Sam Raju谢谢你们俩的帮助。我在自定义适配器中将卡设置为onclick,问题已解决。
这就是我所做的:
CardView cardView= listItemView.findViewById(R.id.card);
cardView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view)
{
// Find the current news that was clicked on
News currentNews = getItem(position);
// Convert the String URL into a URI object (to pass into the Intent constructor)
assert currentNews != null;
Uri newsUri = Uri.parse(currentNews.getUrl());
// Create a new intent to view the news URI
Intent websiteIntent = new Intent(Intent.ACTION_VIEW,newsUri);
// Send the intent to launch a new activity
getContext().startActivity(websiteIntent);
}
});
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