文章/答案/技术大牛

发布

问Android\Eclipse for-each循环
EN

Stack Overflow用户

提问于 2014-04-09 16:48:52

回答 3查看 1.5K关注 0票数 0

这是我的代码Android提取的java类和完整的XML文件：

            for (int i = 0; i < tokens.length; i++) {
                Log.i("myApp0", tokens[0].toString());
                Log.i("myApp1", tokens[1].toString());
                Log.i("myApp2", tokens[2].toString());

                profileImage.setImageUrl(tokens[0].toString());
                textData.setText(tokens[1].toString());
                textTitle.setText(Html.fromHtml(tokens[2].toString()));
                textTitle.setMovementMethod(LinkMovementMethod.getInstance());
            }

布局XML

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

    <com.loopj.android.image.SmartImageView
        android:id="@+id/profileImage"
        android:layout_width="80dp"
        android:layout_height="80dp"
        android:layout_margin="5dp"
        android:background="#444"
        android:padding="3dp" 
        android:scaleType="fitCenter" />

    <TextView
        android:id="@+id/textData"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/textTitle"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dip"
        android:linksClickable="true"
        android:text="@string/hello"
        android:textSize="18sp"
        android:textStyle="bold"        
        android:maxLines="1"
        android:textColor="@android:color/black" />

</LinearLayout>

我认为每一行的输出都有每个相册的日期和标题，但是我对每一行都有相同的相册，在android布局中，我只有第一次约会和相册.为什么？

04-09 18:38:11.088: I/myApp0(28558): https://Link1
04-09 18:38:11.088: I/myApp1(28558): 09/04/2013
04-09 18:38:11.088: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.178: I/myApp0(28558): https://Link1
04-09 18:38:11.178: I/myApp1(28558): 09/04/2013
04-09 18:38:11.178: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.188: I/myApp0(28558): https://Link1
04-09 18:38:11.188: I/myApp1(28558): 09/04/2013
04-09 18:38:11.188: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.188: I/myApp0(28558): https://Link1
04-09 18:38:11.198: I/myApp1(28558): 09/04/2013
04-09 18:38:11.198: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.198: I/myApp0(28558): https://Link1
04-09 18:38:11.208: I/myApp1(28558): 09/04/2013
04-09 18:38:11.208: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.208: I/myApp0(28558): https://Link1
04-09 18:38:11.208: I/myApp1(28558): 09/04/2013
04-09 18:38:11.208: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.218: I/myApp0(28558): https://Link1
04-09 18:38:11.218: I/myApp1(28558): 09/04/2013
04-09 18:38:11.218: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.228: I/myApp0(28558): https://Link1
04-09 18:38:11.228: I/myApp1(28558): 09/04/2013
04-09 18:38:11.228: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.228: I/myApp0(28558): https://Link1
04-09 18:38:11.228: I/myApp1(28558): 09/04/2013
04-09 18:38:11.228: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.238: I/myApp0(28558): https://Link1
04-09 18:38:11.238: I/myApp1(28558): 09/04/2013
04-09 18:38:11.238: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.248: I/myApp0(28558): https://Link1
04-09 18:38:11.248: I/myApp1(28558): 09/04/2013
04-09 18:38:11.248: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.248: I/myApp0(28558): https://Link1
04-09 18:38:11.248: I/myApp1(28558): 09/04/2013
04-09 18:38:11.248: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.258: I/myApp0(28558): https://Link1
04-09 18:38:11.258: I/myApp1(28558): 09/04/2013
04-09 18:38:11.258: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.268: I/myApp0(28558): https://Link1
04-09 18:38:11.268: I/myApp1(28558): 09/04/2013
04-09 18:38:11.268: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.288: I/myApp0(28558): https://Link1
04-09 18:38:11.288: I/myApp1(28558): 09/04/2013
04-09 18:38:11.288: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.298: I/myApp0(28558): https://Link1
04-09 18:38:11.298: I/myApp1(28558): 09/04/2013
04-09 18:38:11.298: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.298: I/myApp0(28558): https://Link1
04-09 18:38:11.298: I/myApp1(28558): 09/04/2013
04-09 18:38:11.298: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.308: I/myApp0(28558): https://Link1
04-09 18:38:11.308: I/myApp1(28558): 09/04/2013
04-09 18:38:11.308: I/myApp2(28558): <a href=http://Link1>Pics1</a>
04-09 18:38:11.318: I/myApp0(28558): https://Link1
04-09 18:38:11.318: I/myApp1(28558): 09/04/2013
04-09 18:38:11.318: I/myApp2(28558): <a href=http://Link1>Pics1</a>

java

android

xml

回答 3

Stack Overflow用户

发布于 2014-04-09 16:52:47

我想是因为你有这个：

         Log.i("myApp0", tokens[0].toString());
            Log.i("myApp1", tokens[1].toString());
            Log.i("myApp2", tokens[2].toString());

你不用我的迭代器..。你用的常数是0,1,2，所以它总是输出相同的值。

票数 0

Stack Overflow用户

发布于 2014-04-09 16:53:41

您没有使用i变量。

让我们看看您的代码：

 for (int i = 0; i < tokens.length; i++) {
            Log.i("myApp0", tokens[0].toString()); // is going to print always the same thing no matter how many rows this has
            Log.i("myApp1", tokens[1].toString());
            Log.i("myApp2", tokens[2].toString());

            profileImage.setImageUrl(tokens[0].toString()); //is always going to set the same image url
            textData.setText(tokens[1].toString());
            textTitle.setText(Html.fromHtml(tokens[2].toString()));
            textTitle.setMovementMethod(LinkMovementMethod.getInstance());
        }

您确定应该使用字符串数组吗？最好的方法是使用具有以下元素的对象：

public class Your_Obj {
    String date, profile_img, title;

//here you implement your object and generate the getters and setters
}

并使用这样的对象列表:而不是使用令牌数组，您应该使用：

List<Your_obj> listYourObjects= getMyObj();

for(Your_Obj obj in listYourObjects){ 

                profileImage.setImageUrl(obj.getProfile_img);
                textData.setText(obj.getDate);
                textTitle.setText(obj.getTitle));
                textTitle.setMovementMethod(LinkMovementMethod.getInstance());

}

票数 0

Stack Overflow用户

发布于 2014-04-09 16:56:27

尝尝这个

for (int i = 0; i < tokens.length/3; i++) {
            Log.i("myApp0", tokens[i*3 + 0].toString());
            Log.i("myApp1", tokens[i*3 + 1].toString());
            Log.i("myApp2", tokens[i*3 + 2].toString());

            profileImage.setImageUrl(tokens[i*3 + 0].toString());
            textData.setText(tokens[i*3 + 1].toString());
            textTitle.setText(Html.fromHtml(tokens[i*3 + 2].toString()));
            textTitle.setMovementMethod(LinkMovementMethod.getInstance());
        }

令牌应该是Array of Object，而不是这个。但是，您可以使用这种技术实现您想要的输出。

要用自己的View显示每条记录，您必须创建ListView，如本教程所示

public class ImageListAdapter extends BaseAdapter {

       private LayoutInflater mLayoutInflater; 
       private ArrayList<String> yourData = new ArrayList<Entry>();

       public ImageListAdapter(Context context) { 
          mLayoutInflater = (LayoutInflater) context
                   .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
       }

       @Override
       public int getCount() {
          return yourData.size()/3; // Specifically for your data -- Not recommended
       }

       @Override
       public Object getItem(int position) {
          return yourData.get(position);
       }

       @Override
       public long getItemId(int position) {
          return position;
       }

       @Override
       public View getView(int position, View convertView,
             ViewGroup parent) {                                        
          RelativeLayout itemView;
          if (convertView == null) {                                      
             itemView = (RelativeLayout) mLayoutInflater.inflate(
                      R.layout.list_item, parent, false);

          } else {
             itemView = (RelativeLayout) convertView;
          }

          ImageView profileImage = (ImageView) itemView.findViewById(R.id.listImage);                       
          TextView textTitle = (TextView) itemView.findViewById(R.id.listTitle);                      
          TextView textData = (TextView) itemView.findViewById(R.id.listDescription);                  

            profileImage.setImageUrl(tokens[i*3 + 0].toString());
            textData.setText(tokens[i*3 + 1].toString());
            textTitle.setText(Html.fromHtml(tokens[i*3 + 2].toString()));
            textTitle.setMovementMethod(LinkMovementMethod.getInstance());

          return itemView;
       }

       public void upDateEntries(ArrayList<String> entries) {
          yourData = entries;
          notifyDataSetChanged();
       }
}

使用Adapter将此ListView设置为ListView.setAdapter(/* ImageListAdapter instance */);

受这启发

票数 0

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/22968990

复制

相似问题

问Android\Eclipse for-each循环
EN

回答 3

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Android\Eclipse for-each循环EN

回答 3

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Android\Eclipse for-each循环
EN