Android 列表视图仅在高分辨率设备的最右角不显示图像

Android 列表视图仅在高分辨率设备的最右角不显示图像,android,android-layout,listview,android-listview,galaxy,Android,Android Layout,Listview,Android Listview,Galaxy,问题: 简单的应用程序应该在listview中显示布局,布局包含如下数据: 图像视图1---文本视图1/(下图)文本视图2---图像视图2 问题是图像视图2在Galaxy S4和Grand Duos等设备中不可见 工作: 不工作: 代码: 项目结构: 主要活动代码: package com.example.screenfix; import java.util.ArrayList; import java.util.HashMap; import android.app.Activit

问题:

简单的应用程序应该在listview中显示布局,布局包含如下数据:

图像视图1---文本视图1/(下图)文本视图2---图像视图2

问题是图像视图2在Galaxy S4和Grand Duos等设备中不可见

工作:

不工作:

代码:

项目结构:

主要活动代码:

package com.example.screenfix;

import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.widget.ListView;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ArrayList<HashMap<String, String>> songsList = new ArrayList<HashMap<String, String>>();

        HashMap<String, String> map = new HashMap<String, String>();
        map.put("App_Name", "Test Data");
        map.put("App_Desc", "Test Description");
        map.put("Price", "free");
        map.put("image_url","importicon");
        songsList.add(map);

        BinderData bindingData = new BinderData(this,songsList);
        ListView list = (ListView) findViewById(R.id.listView1);

        list.setAdapter(bindingData);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}
package com.example.screenfix;
导入java.util.ArrayList;
导入java.util.HashMap;
导入android.app.Activity;
导入android.os.Bundle;
导入android.view.Menu;
导入android.widget.ListView;
公共类MainActivity扩展了活动{
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayList songsList=新的ArrayList();
HashMap=newHashMap();
地图放置(“应用程序名称”、“测试数据”);
地图放置(“应用描述”、“测试描述”);
地图出售(“价格”、“免费”);
地图放置(“图像url”、“导入”);
歌曲列表。添加(地图);
BinderData bindingData=新的BinderData(这是songsList);
ListView列表=(ListView)findViewById(R.id.listView1);
list.setAdapter(bindingData);
}
@凌驾
公共布尔onCreateOptions菜单(菜单){
//为菜单充气;这会将项目添加到操作栏(如果存在)。
getMenuInflater().充气(R.menu.main,menu);
返回true;
}
}
适配器代码:

package com.example.screenfix;

import java.util.HashMap;
import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class BinderData extends BaseAdapter {

    // XML node keys
    static final String KEY_TAG = "weatherdata"; // parent node
    static final String KEY_ID = "id";
    static final String KEY_CITY = "city";
    static final String KEY_TEMP_C = "tempc";
    static final String KEY_TEMP_F = "tempf";
    static final String KEY_CONDN = "condition";
    static final String KEY_SPEED = "windspeed";
    static final String KEY_ICON = "icon";

    LayoutInflater inflater;
    ImageView thumb_image;
    List<HashMap<String,String>> weatherDataCollection;
    ViewHolder holder;
    public BinderData() {
        // TODO Auto-generated constructor stub
    }

    public BinderData(Activity act, List<HashMap<String,String>> map) {

        this.weatherDataCollection = map;

        inflater = (LayoutInflater) act
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }


    public int getCount() {
        // TODO Auto-generated method stub
//      return idlist.size();
        return weatherDataCollection.size();
    }

    public Object getItem(int arg0) {
        // TODO Auto-generated method stub
        return arg0;
    }

    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    public View getView(int position, View convertView, ViewGroup parent) {

        View vi=convertView;
        if(convertView==null){

          vi = inflater.inflate(R.layout.rowdata, null);
          holder = new ViewHolder();

          holder.tvCity = (TextView)vi.findViewById(R.id.textView1); // city name
          holder.tvWeather = (TextView)vi.findViewById(R.id.textView2); // city weather overview
          holder.tvTemperature =  (ImageView)vi.findViewById(R.id.imageView2); // city temperature
          holder.tvWeatherImage =(ImageView)vi.findViewById(R.id.imageView1); // thumb image

          vi.setTag(holder);
        }
        else{

            holder = (ViewHolder)vi.getTag();
        }

          // Setting all values in listview

          holder.tvCity.setText(weatherDataCollection.get(position).get("App_Name"));
          holder.tvWeather.setText(weatherDataCollection.get(position).get("App_Desc"));
          String uri = "";
          if(weatherDataCollection.get(position).get("Price").equalsIgnoreCase("pro"))
          {
              uri = "drawable/label";

          }else{
              uri = "drawable/free";
          }
          int imageResource = vi.getContext().getApplicationContext().getResources().getIdentifier(uri, null, vi.getContext().getApplicationContext().getPackageName());
          Drawable image = vi.getContext().getResources().getDrawable(imageResource);
          holder.tvTemperature.setImageDrawable(image);
          //holder.tvTemperature.setText(weatherDataCollection.get(position).get("Price"));

          //Setting an image
          String uri2 = "drawable/"+ weatherDataCollection.get(position).get("image_url");
          int imageResource2 = vi.getContext().getApplicationContext().getResources().getIdentifier(uri2, null, vi.getContext().getApplicationContext().getPackageName());
          Drawable image2 = vi.getContext().getResources().getDrawable(imageResource2);
          holder.tvWeatherImage.setImageDrawable(image2);

          return vi;
    }

    /*
     * 
     * */
    static class ViewHolder{

        TextView tvCity;
        ImageView tvTemperature;
        TextView tvWeather;
        ImageView tvWeatherImage;
    }

}
package com.example.screenfix;
导入java.util.HashMap;
导入java.util.List;
导入android.app.Activity;
导入android.content.Context;
导入android.graphics.drawable.drawable;
导入android.view.LayoutInflater;
导入android.view.view;
导入android.view.ViewGroup;
导入android.widget.BaseAdapter;
导入android.widget.ImageView;
导入android.widget.TextView;
公共类BinderData扩展BaseAdapter{
//XML节点密钥
静态最终字符串键\u TAG=“weatherdata”//父节点
静态最终字符串键\u ID=“ID”;
静态最终字符串键\u CITY=“CITY”;
静态最终字符串键_TEMP_C=“tempc”;
静态最终字符串键\u TEMP\u F=“tempf”;
静态最终字符串键\u CONDN=“条件”;
静态最终字符串键\u SPEED=“windspeed”;
静态最终字符串键\u ICON=“ICON”;
充气机;
ImageView拇指图像;
数据收集清单;
视窗座;
公共BinderData(){
//TODO自动生成的构造函数存根
}
公共BinderData(活动法案、列表地图){
this.weatherDataCollection=map;
充气机=(充气机)法
.getSystemService(上下文布局\充气机\服务);
}
public int getCount(){
//TODO自动生成的方法存根
//返回idlist.size();
返回weatherDataCollection.size();
}
公共对象getItem(int arg0){
//TODO自动生成的方法存根
返回arg0;
}
公共长getItemId(int位置){
//TODO自动生成的方法存根
返回0;
}
公共视图getView(int位置、视图转换视图、视图组父视图){
视图vi=转换视图;
if(convertView==null){
vi=充气机充气(R.layout.rowdata,null);
holder=新的ViewHolder();
holder.tvCity=(TextView)vi.findViewById(R.id.textView1);//城市名称
holder.tvWeather=(TextView)vi.findViewById(R.id.textView2);//城市天气概览
holder.tvTemperature=(ImageView)vi.findViewById(R.id.imageView2);//城市温度
holder.tvWeatherImage=(ImageView)vi.findViewById(R.id.imageView1);//拇指图像
vi.setTag(支架);
}
否则{
holder=(ViewHolder)vi.getTag();
}
//在listview中设置所有值
holder.tvCity.setText(weatherDataCollection.get(position.get)(“应用程序名称”);
holder.tvWeather.setText(weatherDataCollection.get(position.get)(“App_Desc”));
字符串uri=“”;
if(weatherDataCollection.get(position.get(“Price”).equalsIgnoreCase(“pro”))
{
uri=“可绘制/标签”;
}否则{
uri=“可提取/免费”;
}
int-imageResource=vi.getContext().getApplicationContext().getResources().getIdentifier(uri,null,vi.getContext().getApplicationContext().getPackageName());
可绘制图像=vi.getContext().getResources().getDrawable(imageResource);
支架.tVTempture.setImageDrawable(图像);
//holder.tvTemperature.setText(weatherDataCollection.get(position.get(“Price”));
//设置图像
字符串uri2=“drawable/”+weatherDataCollection.get(position.get)(“image_url”);
int-imageResource2=vi.getContext().getApplicationContext().getResources().getIdentifier(uri2,null,vi.getContext().getApplicationContext().getPackageName());
Drawable image2=vi.getContext().getResources().getDrawable(imageResource2);
支架.tvWeatherImage.setImageDrawable(图像2);
返回vi;
}
/*
* 
* */
静态类视窗夹{
TextView电视城;
图像视图温度;
TextView电视天气;
ImageView电视天气图像;
}
}
主要活动xml:

<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="match_parent"
    tools:context=".MainActivity" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_centerHorizontal="true" >

    </ListView>

</RelativeLayout>

ListRowData:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="right"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="0dp"
        android:layout_height="44dp"
        android:layout_weight="0.20"
        android:scaleType="fitStart"
        android:src="@drawable/importicon" />

    <LinearLayout
        android:layout_width="0dp"
        android:layout_weight="0.70"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"

            android:layout_height="wrap_content"
            android:text="TextView 1" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="TextView 2" />
    </LinearLayout>

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="0dp"
        android:layout_height="50dp"
        android:layout_weight="0.10"

        android:src="@drawable/free" />

</LinearLayout>


非常感谢您的帮助……

在rowdata.xml中应用
android:layout\u width=“match\u parent”
并将
android:layout\u weight=“”
(如下所示)更改为ImageView和inner LinearLayout

这是代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:gravity="right"
   android:orientation="horizontal" >

  <ImageView
      android:id="@+id/imageView1"
      android:layout_width="match_parent"
      android:layout_height="44dp"
      android:layout_weight="2"
      android:scaleType="fitStart"
      android:src="@drawable/ic_launcher" />

  <LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_weight="1"
      android:orientation="vertical" >

     <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView 1" />

     <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView 2" />
  </LinearLayout>

  <ImageView
     android:id="@+id/imageView2"
     android:layout_width="match_parent"
     android:layout_height="50dp"
     android:layout_weight="2"
     android:src="@drawable/ic_launcher" />

</LinearLayout>

已解决:

问题在于最右边的图标,它的分辨率非常高,只是降低了分辨率并替换了t