在工具栏左侧添加搜索图标

Question

I want to achieve rtl toolbar and for that I use the tricky way . for that i inflate this menu into the toolbar . but now i want add search icon in left of the toolbar . also i set the getSupportActionbar.setTitle(""); for removing title .

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <item
        android:id="@+id/title"
        android:orderInCategory="100"
        android:title="My Title"
        app:showAsAction="always"/>
    <item
        android:id="@+id/icon"
        android:orderInCategory="100"
        android:title=""
        android:icon="@drawable/ic_menu"
        app:showAsAction="always"
        />

</menu>

this is the toolbar screenshot from my toolbar and i mark the place for the search icon exactly .

Answer 1

Put this in your menu file.hope this will work

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
    <!-- Search / will display always -->
    <item android:id="@+id/action_search"
          android:icon="@drawable/action_search"
          android:title="search"
          android:showAsAction="ifRoom"
          android:actionViewClass="android.widget.SearchView"/>
</menu>

Answer 2

From Android API Level 17+ it supports RTL natively. To force your entire layout to be RTL including the ActionBar do the following.

Edit your AndroidManifest.xml and add android:supportsRtl="true" to your <application> tag and then add the following line to the top of your Activities' onCreate() method forceRTLIfSupported(); and then insert the follow function into your Activity.

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
private void forceRTLIfSupported()
{
    if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1){
        getWindow().getDecorView().setLayoutDirection(View.LAYOUT_DIRECTION_RTL);
    }
}

Of course that's only helpful for debugging. Use View.LAYOUT_DIRECTION_LOCALE for production builds so your layout is only changed when the user chosen system location/language aka locale supports RTL.

Hope that helps.