运行以下代码时,我发现数组没有索引错误。
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);
}
}
我不明白为什么。此代码适用于另一个项目,但不适用于我目前正在进行的项目。这是错误日志。
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)
答案 0 :(得分:0)
Caused by: java.lang.ArrayIndexOutOfBoundsException: length=1; index=1
也许错误是你的参数长度为1?你如何执行AsyncTask?
您需要致电task.execute(imageHelper, imageView)
。