它无法在应用程序中显示Toast，其他人也可以

runOnUiThread(new Runnable() {
    @Override
    public void run() {
        Toast.makeText(PhotoListActivity.this, "ok", Toast.LENGTH_SHORT).show();
        LogUtils.printDebug("123", "ok");
    }
});
runOnUiThread(new Runnable() {
    @Override