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我想從我從一個Volley JSONObjectRequest獲取的URL加載圖像。從Android中加載圖像從URL
這是我的JSON請求：
//creates the post request and posts
JsonObjectRequest getRandomImageURL = new JsonObjectRequest(Request.Method.POST, url_image,null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d("ServerResponse","ATM ImageURL"+response.toString());
try {
String image = response.getString("Image");
Log.d("Image","ImageURL "+imgLink+image);
imgAd = (ImageView) findViewById(R.id.imgAd);
String imgURL = imgLink+image;
new DownloadImageTask(imgAd).execute(imgURL);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// error
Log.d("Error.Response","Error"+ error.getLocalizedMessage());
}
}
) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<>();
headers.put("Content-type", "application/json");
headers.put("Accept", "application/json");
headers.put("User-Agent", "Mozilla/5.0");
headers.put("Content-length", dataStream.toString());
return headers;
}
@Override
public byte[] getBody() {
try {
return mRequestBody == null ? null : mRequestBody.getBytes("utf-8");
} catch (UnsupportedEncodingException uee) {
VolleyLog.wtf("Unsupported Encoding while trying to get the bytes of %s using %s", mRequestBody, "utf-8");
return null;
}
}
};
Volley.newRequestQueue(this).add(getRandomImageURL);
}
這是我用從URL加載圖像：
private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
ImageView bmImage;
public DownloadImageTask(ImageView bmImage) {
this.bmImage = bmImage;
}
protected Bitmap doInBackground(String... urls) {
String urldisplay = urls[0];
Bitmap mIcon11 = null;
try {
InputStream in = new java.net.URL(urldisplay).openStream();
mIcon11 = BitmapFactory.decodeStream(in);
} catch (Exception e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return mIcon11;
}
protected void onPostExecute(Bitmap result) {
bmImage.setImageBitmap(result);
}
}
我不斷收到以下異常：
W/System.err: java.io.FileNotFoundException: https://www.lamdacardservices.com/offers/CINEMA Logo.jpg
W/System.err: at com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:197)
W/System.err: at com.android.okhttp.internal.http.DelegatingHttpsURLConnection.getInputStream(DelegatingHttpsURLConnection.java:210)
W/System.err: at com.android.okhttp.internal.http.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:25)
W/System.err: at java.net.URL.openStream(URL.java:470)
W/System.err: at com.example.epavlos.lamda.map_activities.AtmMapActivity$DownloadImageTask$override.doInBackground(AtmMapActivity.java:327)
W/System.err: at com.example.epavlos.lamda.map_activities.AtmMapActivity$DownloadImageTask$override.access$dispatch(AtmMapActivity.java)
W/System.err: at com.example.epavlos.lamda.map_activities.AtmMapActivity$DownloadImageTask.doInBackground(AtmMapActivity.java:0)
W/System.err: at com.example.epavlos.lamda.map_activities.AtmMapActivity$DownloadImageTask.doInBackground(AtmMapActivity.java:317)
W/System.err: at android.os.AsyncTask$2.call(AsyncTask.java:288)
W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237)
W/System.err: at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
W/System.err: at java.lang.Thread.run(Thread.java:818)
任何人都可以幫我對我做錯了什麼？或者即使有更簡單的方法來實現這一點，也許使用排球或其他東西？
劇照給我FileNotFound異常 – pavlos