ListView正在奇怪地更新
以下是我在listview中自定义行的布局。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:id="@+id/layoutTop"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Well Hello Motherfucker"
android:id="@+id/geventProfileName"
android:textSize="20sp"
android:paddingLeft="50dp"/>
</RelativeLayout>
<FrameLayout
android:id="@+id/layoutBottom"
android:layout_width="match_parent"
android:layout_height="300dp"
android:alpha="1"
android:layout_below="@+id/layoutTop"
android:layout_alignParentStart="true">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/no_picture"
android:id="@+id/geventEventPhoto"
android:layout_gravity="top|left"
android:alpha="1"/>
<TextView
android:layout_width="350dp"
android:layout_height="wrap_content"
android:text="asfda"
android:layout_gravity="center|left"
android:textSize="35sp"
android:textColor="#FFF"
android:textAllCaps="true"
android:id="@+id/geventTitle"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Read More"
android:textColor="@color/black"
android:id="@+id/geventReadMoreButton"
android:background="@drawable/readtab"
android:paddingTop="10dp"
android:paddingLeft="20dp"
android:layout_gravity="bottom|right"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="20dp"
android:id="@+id/geventDescription"
android:text=""
android:textColor="@color/black"
android:layout_gravity="top|left"/>
<TextView
android:layout_width="300dp"
android:layout_height="wrap_content"
android:id="@+id/geventDetails"
android:text=""
android:textSize="20sp"
android:textColor="#FFF"
android:layout_gravity="bottom|left"
/>
</FrameLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/layoutBottom"
android:orientation="horizontal"
android:background="#9E9E9E"
android:padding="5dp"
android:layout_marginTop="5dp"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="100"
android:id="@+id/numberOfLikesGEvent"
android:textColor="@color/black"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/numberOfLikesGEvent"
android:id="@+id/likeTextViewGEvent"
android:layout_marginLeft="10dp"
android:textColor="@color/black"
android:text="Like"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="@+id/dislikeTextViewGEvent"
android:layout_marginRight="10dp"
android:id="@+id/numberOfDislikesGEvent"
android:textColor="@color/black"
android:text="200"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/dislikeTextViewGEvent"
android:text="Dislike"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginEnd="0dp"
android:textColor="@color/black"/>
</RelativeLayout>
<de.hdodenhof.circleimageview.CircleImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/profile_image"
android:layout_width="40dp"
android:layout_height="40dp"
android:src="@drawable/photo"
app:civ_border_width="2dp"
app:civ_border_color="#FFF"/>
这是我的CustomAdapter
public class CustomAdapter extends ArrayAdapter<GEvent> {
boolean hasLiked;
boolean hasDisliked;
FirebaseUser fbUser;
ArrayList<String> uids;
ArrayList<String> dUids;
GEvent currentEvent;
private TextView likeTextView;
private TextView numberOfLikes;
private TextView dislikeTextView;
private TextView numberOfDislikes;
private TextView readMoreButton;
private TextView eventDetails;
private TextView titleGevent;
private ImageView eventPhoto;
private TextView profileName;
private TextView descriptionGevent;
private String description;
private String titleForGEvent;
private String detailsGEvent;
private boolean hasLoaded=true;
private de.hdodenhof.circleimageview.CircleImageView circleImageView;
private Context mContext;
private boolean wantsToReadMore=false;
String profilePhotoLink;
PopupWindow pw;
public CustomAdapter(Context context, GEvent[] resource) {
super(context, R.layout.custom_row , resource);
this.mContext = context;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = LayoutInflater.from(getContext());
final View customView = inflater.inflate(R.layout.example,parent,false);
final GEvent gEvent = getItem(position);
currentEvent = gEvent;
firebaseAuth = FirebaseAuth.getInstance();
uid = firebaseAuth.getCurrentUser().getUid();
titleGevent = (TextView) customView.findViewById(R.id.geventTitle);
descriptionGevent = (TextView) customView.findViewById(R.id.geventDescription);
profileName = (TextView) customView.findViewById(R.id.geventProfileName);
likeTextView = (TextView) customView.findViewById(R.id.likeTextViewGEvent);
numberOfLikes = (TextView) customView.findViewById(R.id.numberOfLikesGEvent);
numberOfDislikes =(TextView) customView.findViewById(R.id.numberOfDislikesGEvent);
dislikeTextView = (TextView) customView.findViewById(R.id.dislikeTextViewGEvent);
readMoreButton = (TextView) customView.findViewById(R.id.geventReadMoreButton);
eventPhoto = (ImageView) customView.findViewById(R.id.geventEventPhoto);
eventDetails = (TextView)customView.findViewById(R.id.geventDetails);
circleImageView = (CircleImageView) customView.findViewById(R.id.profile_image);
description = gEvent.getDescription();
detailsGEvent = gEvent.getgEventDate()+"\n"+gEvent.getgEventTime()+"\n"+gEvent.getVenue1()+"\n"+gEvent.getVenue2()+"\n"+gEvent.getContactEmail()+"\n"+gEvent.getContactPhoneNumber();
titleForGEvent = gEvent.getTitle();
if(gEvent.isHasPhoto()){
hasLoaded= false;
readMoreButton.setText("Loading");
}
readMoreButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(hasLoaded) {
Log.i("CA","Entered hasLoaded Function");
readMoreFunction();
}
else
Toast.makeText(mContext,"Loading....",Toast.LENGTH_LONG).show();
}
});
titleGevent.setText(gEvent.getTitle());
String uuid = gEvent.getUuid();
Boolean hasPhoto = gEvent.isHasPhoto();
profileName.setText(gEvent.getProfileUsername());
if(hasPhoto) {
final long ONE_MEGABYTE = 1024 * 1024 * 5;
pathRef.getBytes(ONE_MEGABYTE).addOnSuccessListener(new OnSuccessListener<byte[]>() {
@Override
public void onSuccess(byte[] bytes) {
Bitmap picturel = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
ImageView imageView = (ImageView) customView.findViewById(R.id.geventEventPhoto);
Drawable d = new BitmapDrawable(mContext.getResources(),picturel);
imageView.setBackground(d);
Log.i("CA","Entered hasRetrieved Photo and update hasLoaded");
readMoreButton.setText("Read More");
hasLoaded=true;
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception exception) {
// Handle any errors
Log.i("Error","Couldn't Download");
}
});
}
return customView;
}
public void readMoreFunction（）{
Log.i("CA","Entered readMoreFunction Function");
if(wantsToReadMore){ //wants to read less now
Log.i("CA","Entered Read Less Function");
eventPhoto.setAlpha(1f);
descriptionGevent.setText("");
eventDetails.setText("");
readMoreButton.setText("Read More");
titleGevent.setText(titleForGEvent);
wantsToReadMore=false;
}
else{ //Wants to read more
Log.i("CA","Entered Read More Function");
eventPhoto.setAlpha(0.5f);
descriptionGevent.setText(description);
eventDetails.setText(detailsGEvent);
titleGevent.setText("");
readMoreButton.setText("Read Less");
wantsToReadMore=true;
}
所以我的问题是每当我调用这个CustomAdapter时，只有一个列表项在那里它完美地工作，但是每当有多个列表项时，适配器开始表现奇怪。例如，每当有2个项目时，如果我按下第一个项目的“阅读更多”按钮，它将触发第二个项目，即使在日志中它显示它正在工作的数据是第一个项目本身。
如果有两个以上的项目，则会观察到上述模式，即每当我点击给定项目的“阅读更多”按钮时，它就会触发列表视图中的下一个项目。有时它甚至在加载图像或“阅读更多”按钮甚至没有响应后仍然停留在“正在加载”。
过去两天我一直在敲头，寻找虫子。希望你们能帮助我。谢谢你。
PS： - “加载更多”按钮不合适，请原谅。
1 个答案:
答案 0 :(得分：1)
在GEvent内部创建一个boolean字段
class GEvent {
private boolean readMoreClicked;
public boolean isReadMoreClicked(){
return readMoreClicked;
}
public void setReadMoreClicked(boolean readMoreClicked){
this.readMoreClicked = readMoreClicked;
}
}
在getView内，
@Override
public View getView(int position, View convertView, ViewGroup parent) {
....
if(gEvent.isReadMoreClicked()) {
Log.i("CA","Entered More Less Function");
...
} else {
Log.i("CA","Entered Less More Function");
...
}
readMoreButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(hasLoaded) {
Log.i("CA","Entered hasLoaded Function");
// user has clicked Read More. Save the state
gEvent.setReadMoreClicked(!gEvent.isReadMoreClicked());
notifyDataSetChanged();
} else {
Toast.makeText(mContext,"Loading....",Toast.LENGTH_LONG).show();
}
}
});
...
}
可能需要进行一些编辑。但我希望你明白这个主意。 ：）
相关问题
最新问题
- 我写了这段代码，但我无法理解我的错误
- 我无法从一个代码实例的列表中删除 None 值，但我可以在另一个实例中。为什么它适用于一个细分市场而不适用于另一个细分市场？
- 是否有可能使 loadstring 不可能等于打印？卢阿
- java中的random.expovariate()
- Appscript 通过会议在 Google 日历中发送电子邮件和创建活动
- 为什么我的 Onclick 箭头功能在 React 中不起作用？
- 在此代码中是否有使用“this”的替代方法？
- 在 SQL Server 和 PostgreSQL 上查询，我如何从第一个表获得第二个表的可视化
- 每千个数字得到
- 更新了城市边界 KML 文件的来源？