安卓状态栏下拉

需要权限：

<uses-permission android:name="android.permission.EXPAND_STATUS_BAR" />

状态栏下拉：

/**
    * 展开通知栏
    * @param context
     */
   public static void expandNotification(Context context) {
      Object service = context.getSystemService("statusbar");
      if (null == service)
         return;
      try {
         Class<?> clazz = Class.forName("android.app.StatusBarManager");
         int sdkVersion = android.os.Build.VERSION.SDK_INT;
         Method expand = null;
         if (sdkVersion <= 16) {
            expand = clazz.getDeclaredMethod("expand");
         } else {
          /*
           * Android SDK 16之后的版本展开通知栏有两个接口可以处理
           * expandNotificationsPanel()
           * expandSettingsPanel()
           */
            //expand =clazz.getMethod("expandNotificationsPanel");
            expand = clazz.getDeclaredMethod("expandSettingsPanel");
         }
         expand.setAccessible(true);
         expand.invoke(service);
      } catch (Exception e) {
//       //e.printStackTrace();
      }
   }

注意：expandNotificationsPanel为状态栏下拉，可以查看通知；expandSettingsPanel方法会把整个状态栏展开。想要深入研究的可以去看看源码，这两个方法位于源码中：frameworks/base/services/core/java/com/android/server/statusbar/StatusBarManagerService.java