layout update

app/src/main/res/layout/change_wx_tel_layout.xml

@@ -8,7 +8,8 @@
 
     <ScrollView
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
         android:scrollbars="none">
         <LinearLayout
             android:layout_width="match_parent"
@@ -33,13 +34,13 @@
                 android:layout_marginTop="@dimen/content_padding_30"
                 android:layout_marginBottom="@dimen/content_padding_10"
                 android:layout_gravity="center"/>
-            <TextView
-                android:id="@+id/change_sure_tv"
-                style="@style/style_button"
-                android:text="立即绑定"/>
 
         </LinearLayout>
     </ScrollView>
 
+    <TextView
+        android:id="@+id/change_sure_tv"
+        style="@style/style_button"
+        android:text="立即绑定"/>
 
 </LinearLayout>