android 小部件更新的RemoteViews超出最大位图内存使用错误

v6ylcynt  于 2022-11-03  发布在  Android
关注(0)|答案(4)|浏览(437)

我有一个小部件,解析XML提要,并显示其标题和图像。在这个小部件我使用的服务,定期改变内容(即,标题和图像)。为此我使用计时器类。当我们运行这个小部件,一些内容显示没有任何问题,但过了一段时间,它强制关闭,并显示一个错误,如“RemoteViews为小部件更新超过最大位图内存使用量(已用:2465280最大:2304000)总内存不能超过所需的设备的屏幕一次”。请有人帮助我解决这个问题...提前感谢
这里是我的应用程序窗口小部件提供者=〉

public class myappwidgetprovider extends AppWidgetProvider {
    public static String urls="http://www.abc.com/en/rssfeeds/9/latest/rss.xml";
    // XML node keys
    static final String KEY_HEAD = "item"; // parent node
    //static final String KEY_TITLE = "title";
    static final String KEY_DATE = "pubDate";
    public static String headflag="english";
    public static String[] Title;
        public static String[] Description;
        public static String[] Tit;
        public static String[] Tit2;
        public static String[] Desc;
        public static String[] Desc2;
        public static String[] image;
    public static TextView flashnews;

    public static int i=0;

     public void onUpdate( Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds )
        {

         Log.i("Tag", "onCreateView");
         parse();

           RemoteViews remoteViews;
                        ComponentName thisWidget = new ComponentName(context,myappwidgetprovider .class);

                int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);

                Intent intent = new Intent(context.getApplicationContext(),
                        Updatewidget.class);
                    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, allWidgetIds);
                            context.startService(intent);

               }

     public static void parse()
     {

            URL url;

            try {

                url = new URL(urls);
                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                if((conn.getResponseCode() == HttpURLConnection.HTTP_OK)){
                      DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
                      DocumentBuilder db = dbf.newDocumentBuilder();
                      Document doc;
                      doc = db.parse(url.openStream());
                      doc.getDocumentElement().normalize();

                      NodeList itemLst = doc.getElementsByTagName("item");
                      Description = new String[itemLst.getLength()];//........
                      Title = new String[itemLst.getLength()];
                      Tit=new String[itemLst.getLength()];
                      Tit2=new String[itemLst.getLength()];
                      Desc=new String[itemLst.getLength()];
                      Desc2=new String[itemLst.getLength()];
                      image= new String[itemLst.getLength()];

                      for(int i=0; i < itemLst.getLength(); i++){

                            Node item = itemLst.item(i);
                            if(item.getNodeType() == Node.ELEMENT_NODE){
                                  Element ielem = (Element)item;
                                  NodeList title = ielem.getElementsByTagName("title");
                                  NodeList date = ielem.getElementsByTagName("pubDate");
                                  NodeList description = ielem.getElementsByTagName("description");
                                  Tit[i]= title.item(0).getChildNodes().item(0).getNodeValue();
                                  Desc[i]= description.item(0).getChildNodes().item(0).getNodeValue();
                                  Tit2[i]=Translate.title(Tit[i]);
                                  Desc2[i]=Translate.description(Desc[i]);
                                  if(headflag=="malayalam")
                                    {
                                      Desc2[i]=Desc2[i].replace("read more","IqSpXÂ");
                                    }
                                  Title[i] =Tit2[i];
                                  if (Desc2[i].contains("<img ")){
                                      String img  = Desc2[i].substring(Desc2[i].indexOf("<img "));
                                      String cleanUp = img.substring(0, img.indexOf(">")+1);
                                      img = img.substring(img.indexOf("src=") + 5);
                                      int indexOf = img.indexOf("'");
                                      if (indexOf==-1){
                                          indexOf = img.indexOf("\"");
                                        }
                                      img = img.substring(0, indexOf);

                                //setImgLink(img);
                                    if(headflag=="malayalam")
                                    {
                                        String img2=img.replace("files","files/imagecache/android_320");
                                        Description[i]=Desc2[i].replace(img,img2);
                                        image[i]=img2;
                                    }

                                else
                                {
                                    String img2=img.replace("files","files/imagecache/android_1_img");
                                    Description[i]=Desc2[i].replace(img,img2);
                                    image[i]=img2;
                                }
                                  }
                                else
                                {
                                    Description[i] =Desc2[i];
                                }

                            }

                          }

                        }
            } catch (MalformedURLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (DOMException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (ParserConfigurationException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (SAXException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
     }

}

这里是我的服务=〉

public class Updatewidget extends Service {
    static String UPDATEMOOD ="UPDATEMOOD";
    public Intent newintent;
    public AppWidgetManager app;
    public RemoteViews newviews;
    public int[] newappid;
    int i=0;
    @Override
    public void onStart(final Intent intent, int startId) {

         Log.i("Tag", "Service Called!!!!!!!!!!!!!");

         newintent=intent;
                 int[] allWidgetIds = intent
                    .getIntArrayExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS);
         newappid=allWidgetIds;

         final AppWidgetManager appWidgetMan = AppWidgetManager.getInstance(this);
         app=appWidgetMan;
         final RemoteViews views = new RemoteViews(this.getPackageName(),R.layout.widget_main);
         newviews=views;
         views.setTextViewText(R.id.title, myappwidgetprovider.Title[0]);
         Bitmap bitmap;
            try {
                bitmap = BitmapFactory.decodeStream((InputStream)new URL(myappwidgetprovider.image[0]).getContent());

                views.setImageViewBitmap(R.id.imageView4, bitmap);
            } catch (MalformedURLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
         appWidgetMan.updateAppWidget(allWidgetIds, views); 

         new ProgressAsyncTask().execute();

    }

     public class ProgressAsyncTask extends 
        AsyncTask<Void, Integer, Void> {

        @Override
        protected Void doInBackground(Void... params) {
            // TODO Auto-generated method stub
             int delay = 5000; // delay for 5 sec.

             int period = 5000; // repeat every sec.

             Timer timer = new Timer();
              timer.scheduleAtFixedRate(new TimerTask() {

                     public void run() {
                         i++;
                         if(i==5)
                         {
                             i=0;
                         }

                         int[] allWidgetIds = newintent
                                    .getIntArrayExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS);
                                 newviews.setTextViewText(R.id.title, myappwidgetprovider .Title[i]);
                         Bitmap bitmap;
                            try {
                                bitmap = BitmapFactory.decodeStream((InputStream)new URL(myappwidgetprovider .image[i]).getContent());

                                newviews.setImageViewBitmap(R.id.imageView4, bitmap);
                            } catch (MalformedURLException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                            } catch (IOException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                            }
                         app.updateAppWidget(allWidgetIds, newviews); 
                                 }

                     }, delay, period);
            return null;
        }
     }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }

}
zfciruhq

zfciruhq1#

我刚刚解决了一个类似的问题。但是我没有从网络上加载任何内容。我的小部件显示不同大小的小部件的不同图像。并且在一些屏幕上有同样的错误,就像你显示小部件4x4一样。
这就是我在www.example.com上找到developer.google.com:
RemoteViews对象使用的总位图内存不能超过填充屏幕所需的内存的1.5倍,即(屏幕宽度x屏幕高度x 4 x 1.5)字节。
因此,我可以在窗口小部件中对位图大小进行限制,以满足此要求。
在您的特定情况下,如果从流加载的位图大于可能的大小,则会发生错误。
我认为
公共静态位图解码流(输入流为,矩形输出填充,位图工厂。选项选择)
使用适当的选项应该会有帮助。(可能需要使用inSampleSize选项)。
希望我的帖子对你有帮助。

qv7cva1a

qv7cva1a2#

Glide.with(mContext)
        .load(imageUrl)
        .override(480, 342)

....
覆盖(...)为我做了这个把戏。没有更多的错误,如:小部件更新的RemoteViews超出最大位图内存使用错误

mefy6pfw

mefy6pfw3#

Google发明了一个有趣的图片缓存。我不知道为什么,但它大大增加了系统的负载。这就是为什么我每次都这样做,而不存储图片历史记录:

contentView = new RemoteViews(getApplicationContext().getPackageName(), R.layout.notification_media);
        Intent notify = new Intent(getApplicationContext(), MainActivity.class);
        PendingIntent butt = PendingIntent.getActivity(getApplicationContext(), 0, notify, PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_IMMUTABLE);
        contentView.setOnClickPendingIntent(R.id.ibShowApp, butt);
        contentView.setTextViewText(R.id.tvTitle, title);
        if (coverArt != null) {
            if (coverCache != null) coverCache.recycle();
            try {
                coverCache = BitmapFactory.decodeFile(coverArt);
            } catch (Throwable throwable) {
                coverCache = null;
            }
            contentView.setImageViewBitmap(R.id.ivCover, coverCache);
        } else if (coverCache != null) {
            contentView.setImageViewBitmap(R.id.ivCover, null);
            coverCache.recycle();
            coverCache = null;
        }
        mBuilder.setContentTitle(title)
                .setCustomBigContentView(contentView)
                .setContent(contentView);
        Notification not = mBuilder.build();
        not.flags |= Notification.FLAG_NO_CLEAR;
        startForeground(Constants.NOTIFICATION_ID, not);
5f0d552i

5f0d552i4#

演示RusArtM响应的第二部分

val bitmapOptions = BitmapFactory.Options()
bitmapOptions.inSampleSize = 4
val bitmap = BitmapFactory.decodeFile(codeData.imagePath, bitmapOptions)

inSampleSize的值上级1时,缩小图像。使用inSampleSize = 4,我们得到的图像的宽度/高度是图像的1/4
这是文档

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