我需要将默认值文本“选择你的设备”值设置为我的微调器下拉列表,我把它作为列表项,所以它作为一个下拉列表项,我隐藏下拉列表,因为这我的下拉菜单中有一个空白区域.

我该怎么做？

这是我用过的代码

mToolbar = (Toolbar) findViewById(R.id.toolbar_actionbar);

setSupportActionBar(mToolbar);

getSupportActionBar().setDisplayShowHomeEnabled(true);

getSupportActionBar().setDisplayShowTitleEnabled(false);

/*Setup a Spinner*/

mToolbarSpinner = (Spinner) findViewById(R.id.spinner_toolbar);

/*Manage the spinner*/

mToolbarSpinnerNavigationItems = new ArrayList();

mToolbarSpinnerNavigationItems.add(new SpinnerNavItem("Select your Seebo", R.drawable.deviceonline));

/*setting the mToolbarSpinnerNavigationItems to list_item_title_navigation.xml*/

mArrayAdapter = new ArrayAdapter(this, R.layout.list_item_title_navigation,mToolbarSpinnerNavigationItems){

@Override

public View getView(int position, View convertView, ViewGroup parent) {

// remember to inflate custom layout for spinner item

// then set anything you want here

// remember to use convertView.findViewById(), not just findViewById()

// this is an example

// inflate layout

convertView = View.inflate(MainActivity.this, R.layout.list_item_title_navigation, null);

// get view

TextView tvText1 = (TextView) convertView.findViewById(R.id.devicetitle);

ImageView imgIcon = (ImageView) convertView.findViewById(R.id.deviceicon);

imgIcon.setVisibility(View.GONE);

//imgIcon.setImageResource(mToolbarSpinnerNavigationItems.get(position).getIcon());

// set content

tvText1.setText(mToolbarSpinnerNavigationItems.get(position).getTitle());

// return

return convertView;

}

@Override

public View getDropDownView(int position, View convertView, ViewGroup parent) {

return convertView;

}

};

//setting adapter to Spinner

mToolbarSpinner.setAdapter(mArrayAdapter);