会飞的hint

<android.support.design.widget.TextInputLayout
            xmlns:app="http://schemas.android.com/apk/res-auto"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:hint="手机号或邮箱"
            android:textColor="#9b9b9b"
            android:textColorHint="@android:color/darker_gray"
            app:hintAnimationEnabled="true"
            app:hintEnabled="true"
            app:hintTextAppearance="@style/FloatingStyle"
            >

            <android.support.design.widget.TextInputEditText
                xmlns:app="http://schemas.android.com/apk/res-auto"
                android:paddingTop="5dp"
                android:id="@+id/et_username"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@null"
                android:inputType="phone|textEmailAddress"
                android:paddingBottom="5dp"
                android:textColor="@android:color/white"
                android:textCursorDrawable="@drawable/input_cusor"
                android:textSize="16dp"
                />
</android.support.design.widget.TextInputLayout>