有些Android旧平台，在Settings菜单里的，设置-电池菜单下，没有电池使用数据，如何处理

有些Android旧平台，

在Settings菜单里的，设置-电池菜单下，没有电池使用数据

如何处理，最简单的方法按如下方法处理。

开发云 - 一站式云服务平台

Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Settings/src/com/android/settings/fuelgauge/PowerUsageSummary.java   | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/apps/Settings/src/com/android/settings/fuelgauge/PowerUsageSummary.java b/packages/apps/Settings/src/com/android/settings/fuelgauge/PowerUsageSummary.java
index 
--- a/packages/apps/Settings/src/com/android/settings/fuelgauge/PowerUsageSummary.java
+++ b/packages/apps/Settings/src/com/android/settings/fuelgauge/PowerUsageSummary.java
@@  @@ public class PowerUsageSummary extends PowerUsageBase {
         }
         if (!addedSome) {
             addNotAvailableMessage();
+            removePreference(KEY_APP_LIST);
         }
 
         BatteryEntry.startRequestQueue();
--