java - 用户数据到 ListView

Question

我正在使用 Parse，我正在尝试使用自定义适配器将所有用户数据从中检索到列表视图。列表视图目前正在处理假数据，我不知道如何使用我的真实数据。

我试图检索的数据是所有用户解析行：

用户名 | 细绳

企业名称 | 细绳

企业图片 | 位图

有多少人在做生意| 整数

listView 图片 - https://ibb.co/rZ7Qt95

列表视图代码：

    String[] maintitle ={
            "Title 1","Title 2",
            "Title 3","Title 4",
            "Title 5",
    };

    String[] subtitle ={
            "Sub Title 1","Sub Title 2",
            "Sub Title 3","Sub Title 4",
            "Sub Title 5",
    };

    Integer[] imgid={
            R.drawable.add,R.drawable.add,
            R.drawable.add,R.drawable.add,
            R.drawable.add,
    };

自定义适配器代码：

class MyListAdapter extends ArrayAdapter<String> {

    private final Activity context;
    private final String[] maintitle;
    private final String[] subtitle;
    private final Integer[] imgid;


    public MyListAdapter(Activity context, String[] maintitle,String[] subtitle, Integer[] imgid) {
        super(context, R.layout.mylist, maintitle);
        // TODO Auto-generated constructor stub

        this.context=context;
        this.maintitle=maintitle;
        this.subtitle=subtitle;
        this.imgid=imgid;

    }

    public View getView(int position, View view, ViewGroup parent) {
        
        View rowView = null;
        
        if (rowView == null) {
            LayoutInflater inflater = context.getLayoutInflater();

            rowView = inflater.inflate(R.layout.mylist, null,true);

            TextView titleText = (TextView) rowView.findViewById(R.id.title);
            ImageView imageView = (ImageView) rowView.findViewById(R.id.icon);
            TextView subtitleText = (TextView) rowView.findViewById(R.id.subtitle);

            titleText.setText(maintitle[position]);
            imageView.setImageResource(imgid[position]);
            subtitleText.setText(subtitle[position]);
        }


        return rowView;
    }
}

我试图传递代码的用户数据：

        ParseQuery<ParseObject> query = ParseQuery.getQuery("User");
        query.orderByDescending("createdAt");
        query.setLimit(20);

        query.findInBackground(new FindCallback<ParseObject>() {
            @Override
            public void done(List<ParseObject> objects, ParseException e) {

                if (e == null){

                    for (ParseObject feed : objects){


                        Map<String, String> PlacesInfo = new HashMap<>();
                        PlacesInfo.put("username",feed.getString("username"));
                        PlacesInfo.put("businessname",feed.getString("BusinessName"));
                        PlacesInfo.put("peopleinbusiness",feed.getString("PeopleInBusiness"));
                        


                        ParseFile postImage = feed.getParseFile("Pictures");
                        String imageUrl = postImage.getUrl() ; //live url
                        Uri imageUri = Uri.parse(imageUrl);

                        try {
                            Bitmap bitmap = MediaStore.Images.Media.getBitmap(FeedActivity.this.getContentResolver(), imageUri);

                        } catch (IOException ioException) {
                            ioException.printStackTrace();
                        }

                        feedData.add(PlacesInfo);
                    }


                    MyListAdapter adapter = new MyListAdapter(FeedActivity.this, maintitle, subtitle,imgid);
                    feedListView.setAdapter(adapter);

                }

            }
        });

自定义 ListView XML：

<?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:orientation="horizontal" >

    <ImageView
        android:id="@+id/icon"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:padding="5dp" />

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

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Medium Text"
            android:textStyle="bold"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="5dp"
            android:padding="2dp"
            android:textColor="#4d4d4d" />
        <TextView
            android:id="@+id/subtitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="TextView"
            android:layout_marginLeft="10dp"/>
    </LinearLayout>
</LinearLayout>

最终结果应该是一个 listView，其中包含来自 parse 的所有用户行数据。

欢迎任何帮助，谢谢！

标签： javaandroidarrayslistviewparse-platform