使用辅助服务获取通知图标

问题描述

有没有什么办法让系统通知图标？我可以得到一个通知包裹配备无障碍服务。我甚至可以从它的图标的ID，但我卡在那里。我不知道如何使用ID来获得实际的位图，所以我可以显示它，因为它不是从我的APK。

下面是我的code到目前为止：

  @覆盖
公共无效onAccessibilityEvent（AccessibilityEvent事件）{
        Log.d（onAccessibilityEvent）;
        如果（event.getEventType（）== AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED）{
            如果（event.getParcelableData（）的instanceof通知）{
                通知通知=（通知）event.getParcelableData（）;

                Log.d（股票代码：+ notification.tickerText）;
                Log.d（图标：+ notification.icon）;
                Log.d（largeIcon：+ notification.largeIcon）;

            }

            Log.d（通知：+ event.getText（））;
        }
    }
 

尝试使用这个号码，结果

解决方案

所以，我设法通过搜索在RemoteViews第一ImageView的做到这一点。

  extractImage（notification.contentView）;
...
      私人无效extractImage（RemoteViews意见）{
            的LinearLayout LL =新的LinearLayout（getApplicationContext（））;
            查看查看= views.apply（getApplicationContext（），LL）;
            绘制= searchForBitmap（视图）;
            Log.d（绘制对象：+绘制）;
        }

        私人绘制对象searchForBitmap（查看视图）{
            如果（查看的instanceof ImageView的）{
                返回（（ImageView的）视图）.getDrawable（）;
            }

            如果（查看的instanceof的ViewGroup）{
                ViewGroup中的ViewGroup =（ViewGroup中）查看;
                的for（int i = 0; I＆LT; viewGroup.getChildCount（）;我++）{
                    可绘制的结果= searchForBitmap（viewGroup.getChildAt（一））;
                    如果（结果！= NULL）{
                        返回结果;
                    }
                }
            }
            返回null;
        }
 

Is there any way to get icons of system notifications?I can get a notification parcel with Accessibility service. I can even get the id of the icon from it, but I am stuck there. I have no idea how to use the id to get the actual bitmap so I can display it, because it is not from my apk.

Here is my code so far:

@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
        Log.d("onAccessibilityEvent");
        if (event.getEventType() == AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED) {
            if (event.getParcelableData() instanceof Notification) {
                Notification notification = (Notification) event.getParcelableData();

                Log.d("ticker: " + notification.tickerText);
                Log.d("icon: " + notification.icon);
                Log.d("largeIcon: " + notification.largeIcon);

            }

            Log.d("notification: " + event.getText());
        }
    }

trying to use this id results in

解决方案

So I managed to accomplish this by searching for the first ImageView in the RemoteViews

extractImage(notification.contentView);
...
      private void extractImage(RemoteViews views) {
            LinearLayout ll = new LinearLayout(getApplicationContext());
            View view = views.apply(getApplicationContext(), ll);
            drawable = searchForBitmap(view);
            Log.d("Drawable: " + drawable);
        }

        private Drawable searchForBitmap(View view) {
            if (view instanceof ImageView) {
                return ((ImageView) view).getDrawable();
            }

            if (view instanceof ViewGroup) {
                ViewGroup viewGroup = (ViewGroup) view;
                for (int i = 0; i < viewGroup.getChildCount(); i++) {
                    Drawable result = searchForBitmap(viewGroup.getChildAt(i));
                    if (result != null) {
                        return result;
                    }
                }
            }
            return null;
        }

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