使用辅助服务获取通知图标(Get notification icon using an access

有没有什么办法让系统通知的图标？ 我可以配备无障碍服务的通知包裹。 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。

这是我到目前为止的代码：

@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());
        }
    }

在尝试使用这个号码，结果

android.content.res.Resources $ NotFoundException：资源ID＃0x7f0200ad

Answer 1:

所以我设法通过搜索在RemoteViews第一的ImageView做到这一点

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;
        }

Answer 2:

看看这个工程：

String mPackageName = event.getPackageName();
Context remotePackageContext = context.createPackageContext(mPackageName, 0);
Drawable icon = remotePackageContext.getResources().getDrawable(mIcon);

文章来源: Get notification icon using an accessibility service