我有 ListView
, 我有 ImageView
.我需要从 url 获取图像并显示在 ImageView
,但这不起作用,图像不可见。在那ListView
我有一个 TextView
和 CheckBox
也是,但你不需要它,因为它有效。我正在使用 Glide
.所以有什么问题?
我设置了 glide 占位符,它加载了占位符。我已经完成了调试,我看到 glide 获取了图像 URL。但是图片加载不出来。
好的,这是项目代码。
public class LanguageItem {
String imagePath;
LanguageItem(String imagePath,) {
this.imagePath = imagePath;
}
public String getImagePath() {
return imagePath;
}
也有 textView 和 checkbox,但我没有给你看,因为它很好用。
这里是适配器。
public class LanguageAdapter extends BaseAdapter {
private Context context;
private LayoutInflater lInflater;
private ArrayList<LanguageItem> objects;
LanguageAdapter(Context context, ArrayList<LanguageItem> itemObj) {
this.context = context;
objects = itemObj;
lInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
//amount of elements
@Override
public int getCount() {
return objects.size();
}
//element by position
@Override
public Object getItem(int position) {
return objects.get(position);
}
//id by position
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
view = lInflater.inflate(R.layout.language_items, parent, false);
}
ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
Glide.with(context).load(objects.get(position).getImagePath()).thumbnail(0.5f).crossFade().into(imageView);
return view;
}
这是 fragment 。我正在 fragment 中做我的工作。
public class FragmentLanguage extends BaseFragment {
private static final String IMAGE = "IMAGE";
private ApiClient apiClient;
private ArrayList<LanguageItem> objS;
private LanguageAdapter adapter;
private View mainView;
private ListView listView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
mainView = inflater.inflate(R.layout.languages, container, false);
listView = (ListView) mainView.findViewById(R.id.language_list);
apiClient = ApiClient.getInstance();
//calling methods
fillData();
showResult();
return mainView;
}
public void fillData() {
objS = new ArrayList<>();
getLanguageCall();
}
public void getLanguageCall() {
Call<ResponseBody> getLanguage = apiClient.getLanguage(SharedPreferencesManager.getInstance().getAccessToken());
getLanguage.enqueue(new Callback<ResponseBody>() {
@Override
public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
if (response.isSuccessful()) {
try {
String data = response.body().string();
JSONArray array = new JSONArray(data);
for (int i = 0; i < array.length(); i++) {
JSONObject object = array.getJSONObject(i);
String languageName = object.getString("name");
String path = object.getString("image_path");
String real_path = "https://supportop.eu-gb.mybluemix.net" + path.substring(1, path.length());
Toast.makeText(context, real_path, Toast.LENGTH_SHORT).show();
objS.add(new LanguageItem(languageName,real_path, false));
}
adapter = new LanguageAdapter(getActivity(), objS);
listView.setAdapter(adapter);
} catch (IOException | JSONException e) {
e.printStackTrace();
}
}
}
@Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
Toast.makeText(context, "Error", Toast.LENGTH_SHORT).show();
}
});
}
}
好的,这是代码。我完成了调试并且它成功获取了图像 url,但 Glide 没有加载它。感谢您的阅读。
好的,这是布局。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="@color/white"
android:orientation="horizontal">
<ImageView
android:id="@+id/imageView"
android:layout_width="45dp"
android:layout_height="30dp"
android:layout_gravity="center"
android:layout_marginStart="20dp" />
这里是 listView 部分。
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/language_list"
android:layout_marginTop="10dp"
android:layout_below="@+id/linearLayout"
android:layout_above="@+id/bottomNavigationView">
</ListView>
最佳答案
尝试在 https 中使用 http。我认为这是一个服务器问题。
关于java - Glide 不从 url 加载图像,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49433432/