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안녕하세요, Picasso를 사용하여 내 서버에서 이미지를 가져 와서 Picasta가 Asynctask 및 그 클래스를 확장하는 클래스 내에있는 ImageView 이미지로 설정하는 데 문제가 있습니다. 조각을 확장하는 내 수업에서 불렀다, 나는 내가이 사람에 관한 동일한 문제를 가지고 있다고 생각한다. 그러나 나는 거기에서 대답하는 방법을 사용한다. 나에게 같은 오류를 반복해서 주었다. 여기 :(조각 내부의 Asynctask 내부에서 Picasso를 사용하십시오. java.lang.IllegalStateException
이 AsyncTask를
PostParser.java
public class PostsParser extends AsyncTask<Void,Void,Integer> {
Context c;
ProgressBar pb;
String jsonData;
LinearLayout linear;
public PostsParser(Context c, ProgressBar pb, String jsonData, LinearLayout linear){
this.c = c;
this.pb = pb;
this.jsonData = jsonData;
this.linear = linear;
}
@Override
protected Integer doInBackground(Void... params) {
return this.parseTag();
}
@Override
protected void onPreExecute() {
super.onPreExecute();
pb.setVisibility(View.VISIBLE);
}
@Override
protected void onPostExecute(Integer result) {
super.onPostExecute(result);
if(result == 0){
Toast noData = Toast.makeText(c, "No data found!", Toast.LENGTH_LONG);
noData.setGravity(Gravity.CENTER, 0,0);
noData.show();
} else {
if(pb.getVisibility()==View.VISIBLE){
pb.setVisibility(View.GONE);
}
}
}
private int parseTag(){
try{
JSONArray ja = new JSONArray(jsonData);
JSONObject jo = null;
for(int i = 0;i<ja.length();i++){
jo=ja.getJSONObject(i);
int id = jo.getInt("id");
final String name = jo.getString("name");
final String postsText = jo.getString("posts_text");
final String imageUrl = jo.getString("image_url");
linear.setOrientation(LinearLayout.VERTICAL);
TextView pText = new TextView(c);
pText.setText(postsText);
pText.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
linear.addView(pText);
ImageView pImageView = new ImageView(c);
pImageView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
pImageView.setPadding(0,0,0,16);
loadImageInBackground(pImageView, imageUrl);
linear.addView(pImageView);
}
return 1;
} catch (JSONException e) {
e.printStackTrace();
}
return 0;
}
public void loadImageInBackground(final ImageView iv, String imageUrl){
Target target = new Target(){
@Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
iv.setImageBitmap(bitmap);
}
@Override
public void onBitmapFailed(Drawable errorDrawable) {
pb.setVisibility(View.GONE);
Toast.makeText(c, "Can't load image", Toast.LENGTH_LONG).show();
}
@Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
pb.setVisibility(View.VISIBLE);
}
};
Picasso.with(c).load(imageUrl).into(target); //line 127
} }
그리고 이것은 또한 AsyncTask를 연장하지만이 클래스는 아무것도 잘못하지 않았다고 생각 나는이 클래스 그게 내부의 PostParser.java라고
public class TabPosts extends Fragment {
LinearLayout linearLayout;
ProgressBar pb_posts;
View rootView;
String companyName;
final static String URL = "http://192.168.8.101/servicefinder/DbPostsConnection.php";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.company_posts, container, false);
companyName = getArguments().getString("CompanyName");
return rootView;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
linearLayout = (LinearLayout)rootView.findViewById(R.id.linear);
pb_posts = (ProgressBar)rootView.findViewById(R.id.pb_posts);
new DownloaderPosts(getActivity(),URL,pb_posts,companyName,linearLayout).execute();
}
}
조각
TabPosts.java를 확장 내 자바 클래스 I 때문에 항상 그것을 사용합니다. 내가 여기에 게시해야처럼 그냥
DownloaderPosts.java
@Override
protected void onPreExecute() {
super.onPreExecute();
if(pb.getVisibility() == View.GONE){
pb.setVisibility(View.VISIBLE);
}
}
@Override
protected void onPostExecute(String jsonData) {
super.onPostExecute(jsonData);
pb.setVisibility(View.GONE);
if(jsonData == null){
Toast.makeText(c, "Network Error", Toast.LENGTH_LONG).show();
} else {
PostsParser postsParser = new PostsParser(c, pb, jsonData, linear);
postsParser.execute();
}
}
을 :) 기분이 내 오류입니다.
FATAL EXCEPTION: AsyncTask #1
Process: com.gawapa.servicefinder, PID: 12466
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)
Caused by: java.lang.IllegalStateException: Method call should happen from the main thread.
at com.squareup.picasso.Utils.checkMain(Utils.java:136)
at com.squareup.picasso.RequestCreator.into(RequestCreator.java:496)
at com.gawapa.servicefinder.mMySQL.PostsParser.loadImageInBackground(PostsParser.java:127)
at com.gawapa.servicefinder.mMySQL.PostsParser.parseTag(PostsParser.java:91)
at com.gawapa.servicefinder.mMySQL.PostsParser.doInBackground(PostsParser.java:43)
at com.gawapa.servicefinder.mMySQL.PostsParser.doInBackground(PostsParser.java:27)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)
[Picasso + RxJava2 : 주 스레드에서 메서드 호출이 발생할 수 있습니다] (https://stackoverflow.com/questions/41908613/picasso-rxjava2-method-call-should-happen-from-the-main) -thread) –
하지만 선생님 @JoeC 나는 picasso에 대한 호출을 제거 할 때 c.runOnUiThread() –