新增会议UI调整

WeiChat/src/main/res/layout/activity_add_meeting.xml

@@ -32,7 +32,7 @@
                 android:id="@+id/name_et"
                 style="@style/add_meet_tv"
                 android:layout_toRightOf="@+id/name_tag"
-                android:hint="请输入，必填"
+                android:hint="请输入"
                 android:layout_marginLeft="20dp"
                 android:inputType="text" />
         </RelativeLayout>
@@ -65,7 +65,7 @@
                 android:layout_toRightOf="@id/start_tag"
                 android:drawableRight="@drawable/oa_next"
                 android:layout_marginLeft="20dp"
-                android:hint="请选择，必填" />
+                android:hint="请选择" />
         </RelativeLayout>
 
         <View
@@ -95,7 +95,7 @@
                 android:layout_toRightOf="@id/end_tag"
                 android:drawableRight="@drawable/oa_next"
                 android:layout_marginLeft="20dp"
-                android:hint="请选择，必填" />
+                android:hint="请选择" />
         </RelativeLayout>
 
         <View
@@ -124,7 +124,7 @@
                 style="@style/add_meet_tv"
                 android:layout_toRightOf="@id/location_tag"
                 android:layout_marginLeft="20dp"
-                android:hint="请输入，必填" />
+                android:hint="请输入" />
         </RelativeLayout>
 
         <RelativeLayout
@@ -171,7 +171,7 @@
                 android:layout_toRightOf="@+id/users_tag"
                 android:drawableRight="@drawable/oa_next"
                 android:layout_marginLeft="20dp"
-                android:hint="请选择，必填" />
+                android:hint="请选择" />
         </RelativeLayout>
 
         <View
@@ -225,7 +225,7 @@
                 android:layout_toRightOf="@+id/tag_tag"
                 android:drawableRight="@drawable/oa_next"
                 android:layout_marginLeft="20dp"
-                android:hint="请选择，非必填" />
+                android:hint="请选择" />
         </RelativeLayout>
 
         <View
@@ -249,7 +249,7 @@
                 style="@style/add_meet_tv"
                 android:layout_toRightOf="@id/about_tag"
                 android:layout_marginLeft="20dp"
-                android:hint="请输入，非必填" />
+                android:hint="请输入" />
         </RelativeLayout>
 
         <View