我可以知道如何更改抽屉导航中所选项目的文本颜色吗。
安装 appcompat_v7 22.1.1 后,listview 的 android:textColor 不工作 所以我认为我无法使用可绘制的选择器进行更改。
我设法使用自定义适配器更改抽屉项目的默认颜色。
但这只能在初始化时将第一项设置为绿色。
我可以知道如何在选择项目时将所选项目的颜色(onclick)更改为我想要的颜色。
适配器:
public class NavigationDrawerAdapter extends ArrayAdapter<String> {
private int mSelectedItem;
private final Context context;
private String[] sections;
public NavigationDrawerAdapter(Context context, int resource, String[] objects) {
super(context, resource, objects);
this.context = context;
sections = objects;
}
public int getSelectedItem() {
return mSelectedItem;
}
public void setSelectedItem(int selectedItem) {
mSelectedItem = selectedItem;
}
private String getMenuItemTitle(int position) {
if (position >= 0 && position <= sections.length)
return sections[position];
return "Invalid section requested";
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//Get item TextView
TextView view = (TextView) super.getView(position, convertView, parent);
view.setText(getMenuItemTitle(position));
if (position == mSelectedItem) {
view.setTextColor(getContext().getResources().getColor(R.color.green));
} else {
view.setTextColor(getContext().getResources().getColor(R.color.white)); }
return view;
}
}
抽屉导航:
mDrawerListView.setAdapter(new NavigationDrawerAdapter(
getActionBar().getThemedContext(),
android.R.layout.simple_list_item_activated_1,
new String[]{
getString(R.string.title_home),
getString(R.string.title_stamp),
getString(R.string.title_scanner),
getString(R.string.title_setting),}) {
});
mDrawerListView.setItemChecked(mCurrentSelectedPosition, true);
return mDrawerListView;
..
...
private void selectItem(int position) {
mCurrentSelectedPosition = position;
if (mDrawerListView != null) {
mDrawerListView.setItemChecked(position, true);
}
if (mDrawerLayout != null) {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
if (mCallbacks != null) {
mCallbacks.onNavigationDrawerItemSelected(position);
}
}
最佳答案
我找到了解决方案。
因为我已经扩展了适配器。 我只需要在点击项目进行更改时按位置调用和更改所选项目。
ListDrawer onItemClickListener:
mDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
myadapter.setSelectedItem(position);
}
从自定义适配器:
public void setSelectedItem(int selectedItem) {
mSelectedItem = selectedItem;
}
private String getMenuItemTitle(int position) {
if (position >= 0 && position <= sections.length)
return sections[position];
return "Invalid section requested";
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//Get item TextView
TextView view = (TextView) super.getView(position, convertView, parent);
view.setText(getMenuItemTitle(position));
if (position == mSelectedItem) {
view.setTextColor(getContext().getResources().getColor(R.color.green));
} else {
view.setTextColor(getContext().getResources().getColor(R.color.normal));
}
return view;
}
*适配器类有问题。
关于android - 抽屉导航选择的项目 textColor by Custom Adapter,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30250631/