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運行以下代碼時,我得到的數組超出了索引錯誤。致命異常:AsyncTask#3(執行doInBackground()時發生錯誤)
public class GetImageFileTask extends AsyncTask {
private OnGetImageFileListener listener;
public GetImageFileTask(OnGetImageFileListener listener) {
this.listener = listener;
}
@Override
protected Object doInBackground(Object[] params) {
File imageFile = null;
ImageHelper imageHelper = (ImageHelper) params[0];
ImageView imageView = (ImageView) params[1];
try {
imageFile = imageHelper.getFileFromImageView(imageView);
} catch (IOException e) {
e.printStackTrace();
}
return imageFile;
}
@Override
protected void onPostExecute(Object imageFile) {
listener.onGotImageFile((File) imageFile);
}
}
我不明白爲什麼。此代碼在另一個項目中工作,但不在我目前正在使用的項目中。這是錯誤日誌。
02-13 17:20:21.073 30900-30985/app.protoype3 E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #4
Process: app.protoype3, PID: 30900
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:818)
Caused by: java.lang.ArrayIndexOutOfBoundsException: length=1; index=1
at app.protoype3.GetImageFileTask.doInBackground(GetImageFileTask.java:24)
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:818)
請顯示您調用'AsyncTask'的代碼 – Rohit5k2
'AsyncTask'有3個類型參數,而您使用的是原始類型。你也用一個接受Object []的方法重寫了一個可變參數方法'doInBackground(Params ... params)'。這是一個巨大的混亂(儘管我不認爲這與你的實際問題有任何關係)的祕訣。 –