XML : Applying style globally Android with theme and Style inheritance

I am trying to create base theme for whole my app, I have created custom styles for base components like EditText, Button, TextView and wanna to set them globally in my app.

Here is my xml code.

   <style name="AppThemeBase" parent="Theme.AppCompat.NoActionBar">          <item name="colorPrimary">@color/base_app_color</item>          <item name="colorPrimaryDark">@color/base_app_color</item>          <item name="android:windowContentOverlay">@null</item>          <item name="android:windowNoTitle">true</item>          <item name="windowActionBar">false</item>          <item name="windowActionBarOverlay">true</item>          <item name="windowActionModeOverlay">true</item>          <item name="android:editTextStyle">@style/EditTextBaseStyle</item>          <item name="android:textViewStyle">@style/TextViewBaseStyle</item>      </style>    

My custom edit text style

  <style name="EditTextBaseStyle" parent="Widget.AppCompat.EditText">          <item name="android:textColor">@color/base_text_color</item>          <item name="android:textSize">@dimen/text_size_edit_text</item>          <item name="android:textColorHint">@color/base_hint_color</item>          <item name="android:layout_centerHorizontal">true</item>          <item name="android:background">@drawable/edit_text_rounded_corners_bg</item>      </style>    

I also tried to use @android:style/Widget.EditText as a parent.

  <style name="TextViewBaseStyle" parent="@android:style/Widget.TextView">      <item name="android:textColor">@color/base_text_color</item>      <item name="android:textSize">@dimen/size_text_base</item>      <item name="android:layout_margin">@dimen/margin_text_view_base</item>  </style>    

And of cours in AndroidManifest.xml file

  <application      android:name=".application.QrApplication"      android:allowBackup="true"      android:icon="@drawable/ic_logo_green"      android:label="@string/app_name"      android:theme="@style/AppThemeBase">      <activity          android:name=".ui.activities.LoginActivity"          android:configChanges="orientation|keyboardHidden"          android:label="@string/app_name"          android:noHistory="true"          android:screenOrientation="portrait">          <intent-filter>              <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />          </intent-filter>      </activity>    

I have several questions

1. Why it doesn't apply style for each view (EditText and TextView), if set style manually in xml layout it works like a charm, but I cannot get it working globally
2. About style inheritance. There are two types of inheritance for user custom styles using . (dot) and using keyword parent for default themes, but what will if combine this types of inheritance like this <style name="SomeStyle.ParentStyle" parent="Widget.AppCompat.Button">?
3. Does styles and theme apply to fragments inside activity, theoretically it should because for inflating fragment context from activity is used which is ContextWrapper ?

Please if you have any ideas what can cause such problem, help to solve it or at least share your thoughts.

Thanks.