InputMethodManager leaks minibar because isFocusable() is true

[1951FDG]

Hi,

Detected the leak with LeakCanary, this bug will show on sdkInt 15..27:
https://issuetracker.google.com/issues/37043700

Default suggested styling inherits from Base.Widget.AppCompat.AutoCompleteTextView whose parent is Widget.EditText, which defines:

<item name="focusable">true</item>
<item name="focusableInTouchMode">true</item>
<item name="clickable">true</item>

Hence the memory error. To fix this, I propose the following simple style:

<com.mayurrokade.minibar.MinibarView
    android:id="@+id/minibarView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal|center_vertical"
    android:includeFontPadding="false"
    android:minHeight="32dp"
    android:textAppearance="@style/TextAppearance.AppCompat.Widget.ActionBar.Subtitle.Inverse"
    app:layout_constraintTop_toTopOf="parent" />

A minimum height is also set and includeFontPadding is set to false, to ensure text is centered properly.

Another thing, before showing minibar, I have to add the line:

minibarView.translationZ = 0.0f

Do you know why this is necessary?