为Android TV应用程序的BrowseFragment更改SearchView默认图标？

Question

For Leanback BrowseFragment , by default there is a search view to the left of the screen. Is it a way to change the default icon of that SearchOrbView or hide it.

https://cdn-images-1.medium.com/max/800/1*oIFbcdjYrIqxU55-B23tjA.gif

Answer 1

As stated by the documentation on developer.android.com if you don't call setOnSearchClickedListener the Search orb will be invisible:

public void setOnSearchClickedListener (View.OnClickListener listener)

Sets a click listener for the search affordance.

The presence of a listener will change the visibility of the search affordance in the fragment title. When set to non-null, the title will contain an element that a user may click to begin a search.

If you want instead change the icon of the SearchOrbView you can do it editing your style:

<style name="Theme.Example.Leanback" parent="Theme.Leanback">
    <item name="searchOrbViewStyle">@style/CustomSearchOrbView</item>
</style>

<style name="CustomSearchOrbView" parent="Widget.Leanback.SearchOrbViewStyle">
    <item name="searchOrbIcon">@drawable/your_search_orb_icon</item>
</style>

Answer 2

if you want to change the icon then in you styles.xml

 <style name="NewSeachTheme" parent="Theme.Leanback">
    <item name="searchOrbViewStyle">@style/CustomSearchOrbView</item>
    <item name="defaultSearchColor">@color/transparent</item>
</style>

<style name="CustomSearchOrbView" parent="Widget.Leanback.SearchOrbViewStyle">
    <item name="searchOrbIcon">add your drawable here</item>
    <item name="searchOrbIconColor">@color/transparent</item>
</style>

Here the searchOrbIconColor is transparent because if your icon is small then the default icon color will be shown behind the search icon you use. Then add the new style "NewSeachTheme" to the Theme in manifest. Happy coding :)