android - 带有 CardView 的 RecyclerView 滞后且滚动不顺畅
问题描述
尝试在回收站视图中加载大约 500 行数据，但滚动时出现滞后。
数据不包括任何类型的图像，它只是纯文本。因此找不到任何滞后的原因。
使用的xml和java代码如下：-
xml
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/markeListCard"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
card_view:cardPreventCornerOverlap="true"
android:layout_alignParentTop="true"
card_view:cardUseCompatPadding="true"
app:cardCornerRadius="@dimen/_5sdp"
app:cardElevation="@dimen/_5sdp"
android:layout_marginBottom="14dp"
android:paddingBottom="@dimen/_150sdp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="@dimen/_125sdp"
android:background="@drawable/compltedtlist"
android:layout_gravity="center">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="@dimen/_30sdp"
android:layout_marginTop="@dimen/_10sdp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="@dimen/_5sdp"
android:text="School Name :"
android:singleLine="true"
android:inputType="textPostalAddress"
android:imeOptions="actionNext"
android:textStyle="bold"
android:textSize="@dimen/_10ssp"
android:textColor="#0E9CE0"
android:paddingLeft="@dimen/_10sdp"
android:id="@+id/scndprsnname" >
</TextView>
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="@dimen/_10sdp"
android:maxLines="1"
android:text="Divisional Public School"
android:ems="10"
android:singleLine="true"
android:textColor="#000"
android:imeOptions="actionNext"
android:textSize="@dimen/_10ssp"
android:id="@+id/scholnametxt" >
</TextView>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_30sdp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="@dimen/_5sdp"
android:text="District :"
android:singleLine="true"
android:inputType="textPostalAddress"
android:imeOptions="actionNext"
android:textStyle="bold"
android:textSize="@dimen/_10ssp"
android:textColor="#0E9CE0"
android:paddingLeft="@dimen/_10sdp"
android:id="@+id/detaildadresedit" >
</TextView>
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="@dimen/_38sdp"
android:maxLines="1"
android:text="Aleem Ahmed"
android:ems="10"
android:singleLine="true"
android:textColor="#000"
android:imeOptions="actionNext"
android:textSize="@dimen/_10ssp"
android:id="@+id/tehsilname" >
</TextView>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="@dimen/_30sdp"
android:layout_marginTop="@dimen/_48sdp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="@dimen/_5sdp"
android:text="Tehsil :"
android:singleLine="true"
android:inputType="textPostalAddress"
android:imeOptions="actionNext"
android:textStyle="bold"
android:textSize="@dimen/_10ssp"
android:textColor="#0E9CE0"
android:paddingLeft="@dimen/_10sdp"
android:id="@+id/pcname" >
</TextView>
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="@dimen/_45sdp"
android:maxLines="1"
android:text="Lahore"
android:ems="10"
android:singleLine="true"
android:textColor="#000"
android:imeOptions="actionNext"
android:textSize="@dimen/_10ssp"
android:id="@+id/citytxt" >
</TextView>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="@dimen/_30sdp"
android:layout_marginTop="@dimen/_65sdp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="@dimen/_5sdp"
android:text="Address :"
android:textStyle="bold"
android:ems="10"
android:singleLine="true"
android:textColor="#0E9CE0"
android:imeOptions="actionNext"
android:textSize="@dimen/_10ssp"
android:paddingLeft="@dimen/_10sdp"
android:id="@+id/provnceedit" >
</TextView>
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginRight="@dimen/_10sdp"
android:layout_marginLeft="-40dp"
android:maxLines="1"
android:text="h#10 stret no 17 sabzar lahore"
android:ems="30"
android:singleLine="true"
android:textColor="#000"
android:imeOptions="actionNext"
android:textSize="@dimen/_10ssp"
android:id="@+id/addrestxt" >
</TextView>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="@dimen/_50sdp"
android:layout_marginTop="@dimen/_70sdp"
android:layout_gravity="center"
android:paddingTop="@dimen/_10sdp"
android:gravity="center"
android:textAlignment="center"
android:layout_marginLeft="@dimen/_170sdp"
android:layout_marginRight="@dimen/_10sdp"
android:orientation="horizontal">
<Button
android:id="@+id/uploadbtn"
android:layout_width="@dimen/_140sdp"
android:layout_height="@dimen/_30sdp"
android:background="@drawable/yelowbtn"
android:layout_gravity="center"
android:textStyle="bold"
android:textSize="@dimen/_10sdp"
android:textAlignment="center"
android:layout_marginTop="@dimen/_20sdp"
android:layout_marginBottom="@dimen/_15sdp"
android:gravity="center"
android:text="Stage 2"
android:textColor="#000" />
</LinearLayout>
</RelativeLayout>
</android.support.v7.widget.CardView>
<!--
</LinearLayout>-->
适配器
import android.animation.Animator;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Matrix;
import android.graphics.PointF;
import android.preference.PreferenceManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import com.offlinemap.R;
import com.offlinemap.form.FormStage2;
import com.offlinemap.form.FormToUpdateData;
import java.util.ArrayList;
import java.util.List;
public class Stage2RecyclerViewAdapterViewCompleteList extends RecyclerView.Adapter<Stage2RecyclerViewAdapterViewCompleteList.SearchViewHolder> {
private Context mCtx;
private List<ModeClassCompleteListStage2> searcList;
View thumb1View;
private String jobid;
private Animator mCurrentAnimator;
private int mShortAnimationDuration;
private modelclascompletelist model;
String job;
private Matrix matrix = new Matrix();
Matrix savedMatrix = new Matrix();
//ImageView image;
private ArrayList<String> list = new ArrayList<String>();
String pos;
// We can be in one of these 3 states
static final int NONE = 0;
static final int DRAG = 1;
/*static final int ZOOM = 2;*/
private static final int ZOOM = 2;
int mode = NONE;
// Remember some things for zooming
PointF start = new PointF();
PointF mid = new PointF();
float oldDist = 1f;
String savedItemClicked,scholid,tehsilo ,distrcto ,province ,sgtsID ;
SharedPreferences preferences;
public Stage2RecyclerViewAdapterViewCompleteList(Context mCtx, List<ModeClassCompleteListStage2> searcList)
{
this.mCtx = mCtx;
this.searcList = searcList;
}
@Override
public Stage2RecyclerViewAdapterViewCompleteList.SearchViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(mCtx);
View view = inflater.inflate(R.layout.carview_introcomplete, null);
return new Stage2RecyclerViewAdapterViewCompleteList.SearchViewHolder(view);
}
@SuppressLint("SetTextI18n")
@Override
public void onBindViewHolder(final Stage2RecyclerViewAdapterViewCompleteList.SearchViewHolder holder, final int position)
{
final ModeClassCompleteListStage2 model = searcList.get(position);
holder.adres.setText(model.getDetailsadres());
holder.scholname.setText(model.getScholname());
holder.district.setText(model.getDistrict());
holder.city.setText(model.getTehsil());
/* Glide.with(mCtx)
.load(model.getImage1())
.into(holder.image);*/
if(model.getStg_id().equals("0")){
holder.edit.setText("Add");
}
else {
holder.edit.setText("Update");
}
holder.edit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v)
{
/* String mtoid = searcList.get(position).get();*/
scholid = searcList.get(position).getScholid();
tehsilo = searcList.get(position).getTehsil();
distrcto = searcList.get(position).getDistrict();
province = searcList.get(position).getProvince();
sgtsID = searcList.get(position).getStg_id();
preferences = PreferenceManager.getDefaultSharedPreferences(mCtx);
SharedPreferences.Editor editor = preferences.edit();
editor.putString("scholid", scholid);
editor.putString("thsillo", tehsilo);
editor.putString("distrctto", distrcto);
editor.putString("prov", province);
editor.putString("sgts",sgtsID);
editor.apply();
if(holder.edit.getText().toString().equals("Add")) {
Intent intent = new Intent(mCtx.getApplicationContext(), FormStage2.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
mCtx.getApplicationContext().startActivity(intent);
}
else {
Intent intent = new Intent(mCtx.getApplicationContext(), FormToUpdateData.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
mCtx.getApplicationContext().startActivity(intent);
}
}
});
}
@Override
public int getItemCount() {
/*if (searcList.size() == 0) {
.setVisibility(View.INVISIBLE);
} else {
mRecyclerView.setVisibility(View.VISIBLE);
}*/
return searcList.size();
}
class SearchViewHolder extends RecyclerView.ViewHolder {
/*TextView movingitem, pickup, dropoff,currentbid,date,edit,delete,acceptbid,message,invitetransport,viewquote,similarjob,mesagecount,simlarcount;
ImageView image,largeimage,editimage;
CardView cardView;
ImageView delicon,similaricon,inviteicon,mainimageicon,mesageicon;*/
TextView adres, city, scholname, principalname, secondpersonname, entryno,district;
Button edit;
public SearchViewHolder(View itemView)
{
super(itemView);
adres = itemView.findViewById(R.id.addrestxt);
scholname = itemView.findViewById(R.id.scholnametxt);
edit= itemView.findViewById(R.id.uploadbtn);
district = itemView.findViewById(R.id.tehsilname);
city = itemView.findViewById(R.id.citytxt);
/* movingitem = itemView.findViewById(R.id.MovingItemServlivep);
pickup = itemView.findViewById(R.id.pickupservlivep);
dropoff = itemView.findViewById(R.id.DropOffServlivep);
image = itemView.findViewById(R.id.imagecardlivep);
currentbid = itemView.findViewById(R.id.BidServlivep);
date = itemView.findViewById(R.id.dateservlivep);
edit = itemView.findViewById(R.id.editjob);
delete = itemView.findViewById(R.id.deletejob);
// similarjob = itemView.findViewById(R.id.similarjobtext);
acceptbid = itemView.findViewById(R.id.biddetailslivep);
viewquote = itemView.findViewById(R.id.offerpricelivep);
// invitetransport = itemView.findViewById(R.id.invitetransportertext);
mesagecount = itemView.findViewById(R.id.countermsgs);
// simlarcount = itemView.findViewById(R.id.countersimlar);
editimage= itemView.findViewById(R.id.imageView98);
mesageicon= itemView.findViewById(R.id.imagy98);
delicon= itemView.findViewById(R.id.imagy971);
cardView = itemView.findViewById(R.id.markeListCard);
// similaricon= itemView.findViewById(R.id.imagy981);
// inviteicon= itemView.findViewById(R.id.ima98);
mainimageicon= itemView.findViewById(R.id.imagecardlivep);*/
}
/* public void setFilter(List<UserInfo> newList){
data=new ArrayList<>();
data.addAll(newList);
notifyDataSetChanged();
}*/
}
}
解决方案
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