Add a scroll bar for the notification bar in Android

Upgrade the system to 4.1, and the scroll bar in the notification bar in the lower right corner is missing. If there are few columns in it, it is acceptable, but now there are more columns, adding Bluetooth, GPS, etc., so that the title above is directly directed to the top of the interface. This is unacceptable.

In the past, 4.0 had a scroll bar. I'm not sure if it was removed from 4.1, or a problem occurred while synchronizing the code. In short, add the scroll bar.

For the upper layer, especially the interface, it has always been very guilty. This time, it is also very hard on the scalp. After searching online, you only need to modify an xml resource file and set <ScrollView> to the outmost. However, you must first find the xml file.

First, the status notification bar belongs to the System bar and does not belong to Settings. Therefore, the Code is under frameworks/base/packages/SystemUI.

The xml organization and naming in 4.1 are somewhat different from those in the past. Cannot be found by the same file name. There are many topics in the notification bar, such as "Wi-Fi", "auto rotate screen", and "notification. Search for these strings. The resource file is found to be

Packages/SystemUI/res/layout/system_bar_settings_view.xml
When it is opened, it is found that there is no <ScrollView>. Therefore, set the header in 4.0 to it. The specific changes are as follows:

Diff -- git a/packages/SystemUI/res/layout/system_bar_settings_view.xml B/packages/SystemUI/res/layout/system_bar_settings_view.xml
Index c03dd99 .. 181c026 100644
--- A/packages/SystemUI/res/layout/system_bar_settings_view.xml
++ B/packages/SystemUI/res/layout/system_bar_settings_view.xml
-15,6 + 15,11 @@
* Limitations under the License.
-->
 
+ <ScrollView
+ Xmlns: android = "http://schemas.android.com/apk/res/android"
+ Android: layout_height = "pixel PX"
+ Android: layout_width = "match_parent">
+
<Com. android. systemui. statusbar. tablet. SettingsView
Xmlns: android = "http://schemas.android.com/apk/res/android"
Xmlns: systemui = "http://schemas.android.com/apk/res/com.android.systemui"
@-178,3 + 183,4 @@
 
</Com. android. systemui. statusbar. tablet. SettingsView>
 
+ </ScrollView>
Recompile the package as an upgrade package (it does not work if SystemUI is compiled as apk separately.

Author: laojing123