android.os.AsyncTask#Status ( )源码实例Demo

public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
	AsyncTask.Status status;
	synchronized (searchTask) {
		if ((status = searchTask.getStatus()) == AsyncTask.Status.RUNNING
			|| status == AsyncTask.Status.PENDING) {
			searchTask.cancel(true);
		}
		searchTask = new SearchFileNameTask();
		searchTask.execute(position);
	}
}
 

public void startTaskIfNeeded() {
    AsyncTask.Status status = mTask.getStatus();
    if (status == AsyncTask.Status.PENDING) {
        mTask.execute();
    } else if (mTask.dialog != null) {
        mTask.dialog.show();
    }
}
 

public AsyncTask.Status getStatus(){
    if (insertCatalogIntoDatabaseTask != null){
        return insertCatalogIntoDatabaseTask.getStatus();
    } else {
        return null;
    }
}
 

private void setUiStateFromTaskStatus(AsyncTask.Status taskStatus) {
    switch (taskStatus) {
        case RUNNING:
            uiController.downloadingUiState();
            break;
        case PENDING:
            break;
        case FINISHED:
            uiController.errorUiState();
            break;
        default:
            uiController.errorUiState();
    }
}
 

public AsyncTaskAssert hasStatus(AsyncTask.Status status) {
  isNotNull();
  AsyncTask.Status actualStatus = actual.getStatus();
  assertThat(actualStatus) //
      .overridingErrorMessage("Expected status <%s> but was <%s>.", status, actualStatus) //
      .isEqualTo(status);
  return this;
}