java - 尝试在 Android 上从解析和查看中调用图片

Question

我的 MainActivity 中有此代码，它必须从 Parse 云查看图像和图像的名称。我想查看我的 Parse 数据库中的图像及其文件名。

 postsQueryAdapter = new ParseQueryAdapter<ParseConfig>(this, factory) {
            @Override
            public View getItemView(ParseConfig post, View view, ViewGroup parent) {
                if (view == null) {
                    view = View.inflate(getContext(), R.layout.filter_view, null);
                }
                ImageView contentView = (ImageView) view.findViewById(R.id.content_view);
                TextView usernameView = (TextView) view.findViewById(R.id.username_view);
                contentView.setText();post.getImage().getFile());
                usernameView.setText(post.getUser().getUsername());
                return view;
            }
        };

这是我的filter_view.xml

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

    <ImageView
        android:id="@+id/content_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/username_view"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall" />

</LinearLayout>

和 ParseConfig.java

public class ParseConfig extends ParseObject {

    public void setFile(Bitmap value) {
        put("FilterFile",value);
    }

    public ParseUser getUser() {
        return getParseUser("user");
    }

    public ParseFile getImage() {
        return getParseFile("FilterFile");
    }
    public ParseGeoPoint getLocation() {
        return getParseGeoPoint("PlaceLocation");
    }

    public static ParseQuery<ParseConfig> getQuery() {
        return ParseQuery.getQuery(ParseConfig.class);
    }


    }

Answer 1

我可能弄错了，但您可能必须将图像转换为 ParseFile，然后转换为位图，然后将其另存为 ImageView 。尝试一下

ParseFile img = (ParseFile) post.getImage("YourImageNameOnDatabase").getFile());
    img.getDataInBackground(new GetDataCallback() {

        @Override
        public void done(byte[] data, ParseException e) {
            Bitmap bit = BitmapFactory.decodeByteArray(data, 0, data.length);
            ByteArrayOutputStream stream = new ByteArrayOutputStream();
            bit.compress(Bitmap.CompressFormat.PNG, 100, stream);
            contentView.setImageBitmap(bit);

        }
    });