这是我的列表项的 getter setter 代码:
Java代码:
package com.example.listrestaurant;
public class Restaurant {
private String RestaurantName;
private String RestaurantLocation;
private String restaurantCusine;
private String rating;
private int iconID;
public Restaurant(int iconID,String RestaurantName,String restaurantCusine,String RestaurantLocation, String rating) {
super();
this.RestaurantName = RestaurantName;
this.restaurantCusine = restaurantCusine;
this.RestaurantLocation = RestaurantLocation;
this.rating=rating;
this.iconID=iconID;
}
public String getRestaurantName() {
return RestaurantName;
}
public void setRestaurantName(String restaurantName) {
RestaurantName = restaurantName;
}
public String getRestaurantLocation() {
return RestaurantLocation;
}
public void setRestaurantLocation(String restaurantLocation) {
RestaurantLocation = restaurantLocation;
}
public String getRestaurantCusine() {
return restaurantCusine;
}
public void setRestaurantCusine(String restaurantCusine) {
this.restaurantCusine = restaurantCusine;
}
public String getRating() {
return rating;
}
public void setRating(String rating) {
this.rating = rating;
}
public int getIconID() {
return iconID;
}
public void setIconID(int iconID) {
this.iconID = iconID;
}
}
用于显示列表项的 Java 代码:
package com.example.listrestaurant;
import java.util.ArrayList;
import java.util.List;
import android.R.color;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.ListView;
import android.widget.TextView;
public class MainActivity extends Activity {
int count=0;
String ArrayColor[]={"DE1D0F","FC3B2D","FF7668","EFD816","FAE321","EDD614","9ACD32","689543","305D02","305D00"};
private List<Restaurant> restaurantList=new ArrayList<Restaurant>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
populateCarList();
populateListView();
}
private void populateCarList(){
restaurantList.add(new Restaurant(R.drawable.ic_launcher,"Rese","Restaurant Cusine","Resturant Location","3.5"));
restaurantList.add(new Restaurant(R.drawable.ic_launcher,"Rest","Restaurant Cusine","Resturant Location","6.3"));
restaurantList.add(new Restaurant(R.drawable.ic_launcher,"Rest","Restaurant Cusine","Resturant Location","2.3"));
restaurantList.add(new Restaurant(R.drawable.ic_launcher,"Rest","Restaurant Cusine","Resturant Location","9.6"));
restaurantList.add(new Restaurant(R.drawable.ic_launcher,"Rese","Restaurant Cusine","Resturant Location","3.5"));
restaurantList.add(new Restaurant(R.drawable.ic_launcher,"Rest","Restaurant Cusine","Resturant Location","6.3"));
restaurantList.add(new Restaurant(R.drawable.ic_launcher,"Rest","Restaurant Cusine","Resturant Location","2.3"));
restaurantList.add(new Restaurant(R.drawable.ic_launcher,"Rest","Restaurant Cusine","Resturant Location","9.6"));
}
private void populateListView(){
ArrayAdapter<Restaurant> adapter =new MyListAdapter();
ListView list=(ListView)findViewById(R.id.listView1);
list.setAdapter(adapter);;
}
private class MyListAdapter extends ArrayAdapter<Restaurant>{
public MyListAdapter(){
super(MainActivity.this,R.layout.item_view,restaurantList);;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//Make sure we have a view to work with (may have been given null)
Log.d("Position:", " "+position);
View itemView = convertView;
if(itemView == null){
itemView = getLayoutInflater().inflate(R.layout.item_view, parent,false);
}
//find the Car to work with
Restaurant restaurantGetSetData=restaurantList.get(position);
ImageView restaurantImage_restList_iv=(ImageView)itemView.findViewById(R.id.restaurantImage_restList_iv);
restaurantImage_restList_iv.setImageResource(restaurantGetSetData.getIconID());
TextView restaurantName_restList_tv=(TextView)itemView.findViewById(R.id.restaurantName_restList_tv);
restaurantName_restList_tv.setText(restaurantGetSetData.getRestaurantName()+"count:"+count++);
TextView restaurantCusine_restList_tv=(TextView)itemView.findViewById(R.id.restaurantCusine_restList_tv);
restaurantCusine_restList_tv.setText(restaurantGetSetData.getRestaurantCusine());
TextView restaurantLocation_restList_tv=(TextView)itemView.findViewById(R.id.restaurantLocation_restList_tv);
restaurantLocation_restList_tv.setText(restaurantGetSetData.getRestaurantLocation());
TextView restaurantRating_restList_tv=(TextView)itemView.findViewById(R.id.restaurantRating_restList_tv);
restaurantRating_restList_tv.setText(restaurantGetSetData.getRating());
String rate=restaurantGetSetData.getRating();
restaurantRating_restList_tv.setBackgroundColor(Color.parseColor("#"+ArrayColor[(int) Float.parseFloat(rate)]));
//-----------------------slot and offer--------------------------------------------------
Typeface typeface = Typeface.createFromAsset(getBaseContext().getAssets(),
"helvetica_reg.ttf");
LayoutParams params = new LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT
);
LayoutParams layout=new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
layout.setMargins(5, 0, 5, 0);
params.setMargins(0, 10, 0, 10);
LinearLayout rl=(LinearLayout)itemView.findViewById(R.id.restaurantSlotOffer_restList_tv);
for(int j=0;j<8;j++)
{
LinearLayout l=new LinearLayout(getApplicationContext());
l.clearDisappearingChildren();
l.setLayoutParams(layout);
l.setOrientation(LinearLayout.VERTICAL);
TextView time=new TextView(getApplicationContext());
time.setBackgroundColor(getResources().getColor(R.color.out_gray));
time.setTextColor(Color.BLACK);
time.setTextSize(getApplicationContext().getResources().getDimensionPixelSize(R.dimen.custom_text_size));
time.setGravity(Gravity.CENTER);
time.setLayoutParams(new LayoutParams(90, LayoutParams.WRAP_CONTENT));
time.setPadding(2,2,2,2);
View v1=new View(getApplicationContext());
v1.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, 1));
v1.setBackgroundColor(color.white);
TextView deal=new TextView(getContext());
deal.setLayoutParams(new LayoutParams(90, LayoutParams.WRAP_CONTENT));
deal.setGravity(Gravity.CENTER);
deal.setTextSize(getApplicationContext().getResources().getDimensionPixelSize(R.dimen.custom_text_size));
deal.setPadding(2,2,2,2);
deal.setTextColor(getResources().getColor(R.color.our_red));
deal.setBackgroundColor(getResources().getColor(R.color.out_gray));
time.setTypeface(typeface);
//Log.d("slot from info anshul:", slot.get(j)+"\n");
//time code
/*{
String hour=slot.get(j).substring(0, 2);
String min=slot.get(j).substring(3,5);
if(hour.equals("--")){
Log.d("hour is ", "-------");
time.setText("--:--");
}else{
int hourInt=Integer.parseInt(hour);
int minInt=Integer.parseInt(min);
hour=String.format("%d:%02d", ((hourInt==0||hourInt==12)?12:hourInt%12),minInt);
Log.d("correct Time", hour);
time.setText(hour);
}
Log.d("hour:", hour);
Log.d("min:",min);
}
deal.setText(offer.get(j));
deal.setTypeface(typeface);*/
//--remove this-----------------------
time.setText("0:0"+j);
//deal.setText("--");
//-----------------------------------
l.addView(time);
l.addView(v1);
//l.addView(deal);
rl.addView(l);
}
//----------------------------------------------------------------------------------------
return itemView;
}
@Override
public int getCount () {
return 8; /* where n is the number of row you want */
}
}
}
这是我的每个项目的 xml 代码:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/restaurantImage_restList_iv"
android:layout_width="76dp"
android:layout_height="76dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:adjustViewBounds="true"
android:maxHeight="80dp"
android:maxWidth="80dp"
android:src="@drawable/ic_launcher" />
<TextView
android:id="@+id/restaurantName_restList_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="@+id/restaurantImage_restList_iv"
android:paddingLeft="2dp"
android:text="Restaurant Name"
android:textColor="@color/tgred"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/restaurantLocation_restList_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/restaurantName_restList_tv"
android:layout_below="@+id/restaurantName_restList_tv"
android:paddingLeft="2dp"
android:text="Location Name"
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="@+id/restaurantRating_restList_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:textColor="@android:color/white"
android:paddingTop="4dp"
android:paddingBottom="4dp"
android:paddingRight="6dp"
android:paddingLeft="6dp"
android:layout_marginTop="2dp"
android:text="3.5"
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="@+id/restaurantCusine_restList_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="2dp"
android:text="Cusines"
android:layout_toRightOf="@+id/restaurantImage_restList_iv"
android:layout_below="@+id/restaurantLocation_restList_tv"
android:textColor="@color/tabgray" />
<HorizontalScrollView
android:id="@+id/restaurantSlotOfferLayout_restList_hsv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/restaurantImage_restList_iv"
android:paddingTop="2dp"
android:visibility="visible" >
<LinearLayout
android:id="@+id/restaurantSlotOffer_restList_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingBottom="10dp" >
</LinearLayout>
</HorizontalScrollView>
<Button
android:id="@+id/button1"
android:textColor="@android:color/white"
style="?android:attr/buttonStyleSmall"
android:layout_width="80dp"
android:layout_height="20dp"
android:layout_marginTop="4dp"
android:layout_alignParentRight="true"
android:layout_below="@+id/restaurantRating_restList_tv"
android:background="@color/tgred"
android:text="Book Now"
android:visibility="visible" />
</RelativeLayout>
</RelativeLayout>
这是列表的代码:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".MainActivity" >
<ListView
android:id="@+id/listView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:padding="4dp" >
</ListView>
<Button
android:id="@+id/map_bt"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:background="@android:color/black"
android:text="Map"
android:textColor="@android:color/white" />
</RelativeLayout>
现在我的问题是，当我运行此代码时，我在列表中每一行的循环代码中得到了插槽和报价，但当我向上或向下滚动列表时它会附加。但我只需要显示七个插槽和报价。
当我第一次运行代码时，它只显示 7 个插槽，这很好，但当我向上或向下滚动时，它会更新并显示 14 个插槽并继续。 请帮助我，我付出了所有的努力，但无法解决这个问题。
最佳答案
只需在 getView 方法中每次调用 rl.removeAllViews() 即可停止每次添加插槽。
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//Make sure we have a view to work with (may have been given null)
Log.d("Position:", " "+position);
View itemView = convertView;
if(itemView == null){
itemView = getLayoutInflater().inflate(R.layout.item_view, parent,false);
}
//find the Car to work with
Restaurant restaurantGetSetData=restaurantList.get(position);
ImageView restaurantImage_restList_iv=(ImageView)itemView.findViewById(R.id.restaurantImage_restList_iv);
restaurantImage_restList_iv.setImageResource(restaurantGetSetData.getIconID());
TextView restaurantName_restList_tv=(TextView)itemView.findViewById(R.id.restaurantName_restList_tv);
restaurantName_restList_tv.setText(restaurantGetSetData.getRestaurantName()+"count:"+count++);
TextView restaurantCusine_restList_tv=(TextView)itemView.findViewById(R.id.restaurantCusine_restList_tv);
restaurantCusine_restList_tv.setText(restaurantGetSetData.getRestaurantCusine());
TextView restaurantLocation_restList_tv=(TextView)itemView.findViewById(R.id.restaurantLocation_restList_tv);
restaurantLocation_restList_tv.setText(restaurantGetSetData.getRestaurantLocation());
TextView restaurantRating_restList_tv=(TextView)itemView.findViewById(R.id.restaurantRating_restList_tv);
restaurantRating_restList_tv.setText(restaurantGetSetData.getRating());
String rate=restaurantGetSetData.getRating();
restaurantRating_restList_tv.setBackgroundColor(Color.parseColor("#"+ArrayColor[(int) Float.parseFloat(rate)]));
//-----------------------slot and offer--------------------------------------------------
Typeface typeface = Typeface.createFromAsset(getBaseContext().getAssets(),
"helvetica_reg.ttf");
LayoutParams params = new LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT
);
LayoutParams layout=new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
layout.setMargins(5, 0, 5, 0);
params.setMargins(0, 10, 0, 10);
LinearLayout rl=(LinearLayout)itemView.findViewById(R.id.restaurantSlotOffer_restList_tv);
rl.removeAllViews();//<------------------------------------------
for(int j=0;j<8;j++)
{
LinearLayout l=new LinearLayout(getApplicationContext());
l.clearDisappearingChildren();
l.setLayoutParams(layout);
l.setOrientation(LinearLayout.VERTICAL);
TextView time=new TextView(getApplicationContext());
time.setBackgroundColor(getResources().getColor(R.color.out_gray));
time.setTextColor(Color.BLACK);
time.setTextSize(getApplicationContext().getResources().getDimensionPixelSize(R.dimen.custom_text_size));
time.setGravity(Gravity.CENTER);
time.setLayoutParams(new LayoutParams(90, LayoutParams.WRAP_CONTENT));
time.setPadding(2,2,2,2);
View v1=new View(getApplicationContext());
v1.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, 1));
v1.setBackgroundColor(color.white);
TextView deal=new TextView(getContext());
deal.setLayoutParams(new LayoutParams(90, LayoutParams.WRAP_CONTENT));
deal.setGravity(Gravity.CENTER);
deal.setTextSize(getApplicationContext().getResources().getDimensionPixelSize(R.dimen.custom_text_size));
deal.setPadding(2,2,2,2);
deal.setTextColor(getResources().getColor(R.color.our_red));
deal.setBackgroundColor(getResources().getColor(R.color.out_gray));
time.setTypeface(typeface);
//Log.d("slot from info anshul:", slot.get(j)+"\n");
//time code
/*{
String hour=slot.get(j).substring(0, 2);
String min=slot.get(j).substring(3,5);
if(hour.equals("--")){
Log.d("hour is ", "-------");
time.setText("--:--");
}else{
int hourInt=Integer.parseInt(hour);
int minInt=Integer.parseInt(min);
hour=String.format("%d:%02d", ((hourInt==0||hourInt==12)?12:hourInt%12),minInt);
Log.d("correct Time", hour);
time.setText(hour);
}
Log.d("hour:", hour);
Log.d("min:",min);
}
deal.setText(offer.get(j));
deal.setTypeface(typeface);*/
//--remove this-----------------------
time.setText("0:0"+j);
//deal.setText("--");
//-----------------------------------
l.addView(time);
l.addView(v1);
//l.addView(deal);
rl.addView(l);
}
//----------------------------------------------------------------------------------------
return itemView;
}
关于java - 在 android 中发出自定义列表，每行都有循环，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20278614/