我在导航视图中使用代码来自定义文本高度和行高,它适用于api21,但是相同的代码在api 16中不起作用.我怎样才能使它工作？
码：
创建一个样式并使用app：theme将其应用于NavigationView
<style name="NavigationViewStyle">
<item name="android:textSize">20sp</item> <!-- menu item text size-->
<item name="android:listPreferredItemHeightSmall">40dp</item><!-- menu item height-->
</style>
然后,使用app：theme将此样式应用于NavigationView
<android.support.design.widget.NavigationView
...
...
app:theme="@style/NavigationViewStyle"
...
...
</android.support.design.widget.NavigationView>
解决方法
在代码中,您可以使用此代码自定义文本视图.试试看,让我知道.
private final ArrayList<View> mMenuItems = new ArrayList<>();
final Menu navMenu = navigationView.getMenu();
// Install an OnGlobalLayoutListener and wait for the NavigationMenu to fully initialize
navigationView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
// Remember to remove the installed OnGlobalLayoutListener
navigationView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
// Loop through and find each MenuItem View
for (int i = 0; i < navMenu.size(); i++) {
final String id = "nav_menuItem" + (i);
final MenuItem item = navMenu.findItem(getResources().getIdentifier(id,"id",getPackageName()));
navigationView.findViewsWithText(mMenuItems,item.getTitle(),View.FIND_VIEWS_WITH_TEXT);
}
// Loop through each MenuItem View and apply your custom Typeface
for (final View menuItem : mMenuItems) {
((TextView) menuItem).setTypeface(fontLight,Typeface.NORMAL);
}
}
});
