标签:android androiddesignsupport
是否可以在设计支持库NavigationView中使标题粘滞?
<android.support.design.widget.NavigationView
android:id="@+id/nav_drawer"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header"
app:menu="@menu/nav_drawer"
style="@style/navigation_view_drawer"
/>
编辑:
到目前为止,我的尝试导致了这一点
覆盖NavigationView小部件并添加新方法:
public class CustomNavigationView extends NavigationView {
public CustomNavigationView(Context context) {
super(context);
}
public CustomNavigationView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomNavigationView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
// Inflates header as a child of NavigationView, on top of the normal menu
public void createHeader(int res) {
LayoutInflater inflater = LayoutInflater.from(getContext());;
View view = inflater.inflate(res, this, false);
addView(view);
}
}
然后将其添加到活动的onCreate:
CustomNavigationView navigationView = (CustomNavigationView) findViewById(R.id.your_navigation_view);
navigationView.createHeader(R.layout.your_header);
这样可以达到预期的效果(如果有点不好意思)但是当菜单项位于标题下方时你仍然可以点击它们,有什么想法可以解决这个问题吗?
解决方法:
经过大量的实验,我得到了一些有用的东西……非常hacky,我很乐意听到你需要改进的建议!
覆盖的NavigationView
public class CustomNavigationView extends NavigationView {
public CustomNavigationView(Context context) {
super(context);
}
public CustomNavigationView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomNavigationView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
// Consumes touch in the NavigationView so it doesn't propagate to views below
public boolean onTouchEvent (MotionEvent me) {
return true;
}
// Inflates header as a child of NavigationView
public void createHeader(int res) {
LayoutInflater inflater = LayoutInflater.from(getContext());
View view = inflater.inflate(res, this, false);
// Consumes touch in the header so it doesn't propagate to menu items below
view.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event){
return true;
}
});
addView(view);
}
// Positions and sizes the menu view
public void sizeMenu(View view) {
// Height of header
int header_height = (int) getResources().getDimension(R.dimen.nav_header_height);
// Gets required display metrics
DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
float screen_height = displayMetrics.heightPixels;
// Height of menu
int menu_height = (int) (screen_height - header_height);
// Layout params for menu
LayoutParams params = new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.BOTTOM;
params.height = menu_height;
view.setLayoutParams(params);
}
}
这是在主要活动的onCreate
// Inflates the nav drawer
CustomNavigationView navigationView = (CustomNavigationView) findViewById(R.id.your_nav_view);
navigationView.createHeader(R.layout.your_nav_header);
// sizes nav drawer menu so it appears under header
ViewGroup parent = (ViewGroup) navigationView;
View view = parent.getChildAt(0);
navigationView.sizeMenu(view);
标签:android,androiddesignsupport 来源: https://codeday.me/bug/20190628/1315976.html
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