Setting padding value for my EditTexts. However It doesn't work both 21 and 22 api versions. However, It works perfectly for 19, 23, 24.
Here is my codes:
<style name="LoginEditTextStyle">
        <item name="android:layout_width">match_parent</item>
        <item name="android:layout_height">wrap_content</item>
        <item name="android:layout_gravity">center_horizontal</item>
        <item name="android:maxLines">1</item>
        <item name="android:paddingLeft">@dimen/login_text_padding</item>
        <item name="android:paddingRight">@dimen/login_text_padding</item>
    </style>
This my edittext in the layout xml
<android.support.design.widget.TextInputLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
          android:layout_marginTop="@dimen/login_container_child_view_top_margin"
            android:alpha="0">
            <EditText
                android:id="@+id/login_username_editText"
                style="@style/LoginEditTextStyle"
                android:hint="@string/user_name"
                android:inputType="text"
                />
        </android.support.design.widget.TextInputLayout>
The result for 21 api version

for 24 api version

I know there is a bug of edittext/spinner view to set padding value from xml.
I know there is some solution for this issue such as setting padding values programmaticaly. But It doesn't work for me.
for example : this accepted solution doesn't work for me
int paddingLeft = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 40, getResources().getDisplayMetrics());
        int paddingRight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 55, getResources().getDisplayMetrics());
        int paddingTop = editText.getPaddingTop();
        int paddingBottom = editText.getPaddingBottom();
        editText.setPadding(paddingLeft, paddingTop, paddingRight, paddingBottom);
                I faced the same problem. paddingLeft doesn't work on Android 5.1.1 devices.
Add paddingStart instead which solved the problem for me.  
Please give it a try.
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