How to give color to menu items for Navigation drawer?

问题

I was creating Navigation Drawer and i saw playtore have colored menu icons i want to know how can i do this. I tried to apply colors by colorFilter on menu icons but app force closes

This is my code

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<group
    android:id="@+id/grp1"
    android:checkableBehavior="single">
    <item
        android:id="@+id/navigation_songs"
        android:checked="true"
        android:icon="@drawable/ic_audiotrack_white_24dp"
        android:title="@string/songs" />
    <item
        android:id="@+id/navigation_albums"
        android:icon="@drawable/ic_album_white_24dp"
        android:title="@string/albums" />
    <item
        android:id="@+id/navigation_artist"
        android:icon="@drawable/ic_person_white_24dp"
        android:title="@string/artists" />
    <item
        android:id="@+id/navigation_playlist"
        android:icon="@drawable/ic_playlist_play_white_24dp"
        android:title="@string/playlist" />
</group>
<group
    android:id="@+id/grp2"
    android:checkableBehavior="none">
    <item
        android:id="@+id/navigation_about"
        android:icon="@drawable/ic_info_white_24dp"
        android:title="@string/about" />
    <item
        android:id="@+id/navigation_settings"
        android:icon="@drawable/ic_settings_white_24dp"
        android:title="@string/settings" />
</group>
</menu>

回答1:

To brush all icons into particular color, you need to add app:itemIconTint into your NavigationView:

<android.support.design.widget.NavigationView
     ........
     app:itemIconTint="<your color>"/>

To brush your icons in only 2 colors:

Create a Selector:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="#0000FF" android:state_checked= "true" />
    <item android:color="#FF0000" />
</selector>

And apply it as a app:itemIconTint in your NavigationView:

<android.support.design.widget.NavigationView
     ........
     app:itemIconTint="@drawable/tint_color_selector"/>

Last step - to add android:checked="true" to the MenuItems in your drawer's menu xml you want to brush different:

 <item
    android:id="@+id/nav_slideshow"
    android:checked="true"
    android:icon="@drawable/ic_menu_slideshow"
    android:title="Slideshow" />

To brush all icons in different colors, like Google has in Google Play:

Disable tinting of your icons:

  navigationView.setItemIconTintList(null);

Add icons you want to the res/drawable and specify them as android:icon in your menu's xml. (I can recommend a nice service for android icons icons8.com/web-app/new-icons/android)

Instead of uploading new colorful icons, you can paint existing ones, but it's very hacky:

    Drawable oldIcon = navigationView
            .getMenu()
            .findItem(R.id.nav_gallery)
            .getIcon();

    if (!(oldIcon instanceof BitmapDrawable)) {
        return;
    }

    Bitmap immutable = ((BitmapDrawable)oldIcon).getBitmap();
    Bitmap mutable = immutable.copy(Bitmap.Config.ARGB_8888, true);
    Canvas c = new Canvas(mutable);
    Paint p = new Paint();
    p.setColor(Color.RED);
    p.setColorFilter(new PorterDuffColorFilter(Color.RED, PorterDuff.Mode.MULTIPLY));
    c.drawBitmap(mutable, 0.f, 0.f, p);
    BitmapDrawable newIcon = new BitmapDrawable(getResources(), mutable);

    navigationView
            .getMenu()
            .findItem(R.id.nav_gallery)
            .setIcon(newIcon);

Watch out! In res/drawables-v21 in template project, Google uses VectorDrawables instead of old BitmapDrawables, so this code won't work there.

I hope, it helps.

来源：https://stackoverflow.com/questions/34705823/how-to-give-color-to-menu-items-for-navigation-drawer

标签

android

menuitem