LoaderCallbacksのloadInBackgroundが呼ばれるまでのStackTrace
ソースコードを読む際の参考に
at demo.sample.SampleTaskLoader.loadInBackground(SampleTaskLoader.java:1) at android.support.v4.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:242) at android.support.v4.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:51) at android.support.v4.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:40) at android.support.v4.content.ModernAsyncTask$2.call(ModernAsyncTask.java:123) at java.util.concurrent.FutureTask.run(FutureTask.java:237) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) at java.lang.Thread.run(Thread.java:841)