Question

我有一个包含以下两个键和值的api：

videoUrl:http://ip.json/master.m3u8
srtUrl:http://ip/The_Last_Lions.srt

我已经完成了联网和解析，并在媒体播放器中播放了视频

现在我正尝试将带有视频视图的srt文件的文本显示为该视频的字幕

所以我这样使用 AsynsTask ：

    public class ShashaDetails extends AsyncTask<String, Void, ArrayList<DetailItem>> {

            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                mLoadingIndicator.setVisibility(View.VISIBLE);
            }

            @Override
            protected ArrayList<DetailItem> doInBackground(String... params) {
                if (params.length == 0) {
                    return null;
                }

                String searchUrl = params[0];
                URL channelRequestUrl = NetworkShasha.buildUrl(searchUrl);

                try {
                    String results = NetworkShasha.getResponseFromHttpUrl(channelRequestUrl);

                    ArrayList<DetailItem> simpleJsonTVData = JsonShashaDetail.getSimpleMovieStringsFromJson(ShashaDetail.this, results);

                String srt = simpleJsonTVData.get(0).getSrt();
                Log.d("tag", "test: " + srts);
                al = new ArrayList<>();

                try{
                    URL urlsrt = new URL(srts);
                    URLConnection conn = urlsrt.openConnection();
                    conn.setDoOutput(true);
                    conn.connect();

                    InputStream is = conn.getInputStream();
                    InputStreamReader isr = new InputStreamReader(is, "UTF-8");
                    BufferedReader br = new BufferedReader(isr);
                    String line;

                    try {
                        while ((line = br.readLine()) != null) {
                            al.add(line);
                        }
                    } finally {
                        br.close();
                    }
                }catch (IOException e){
                    e.printStackTrace();
                }

                    return simpleJsonTVData;

                } catch (Exception e) {
                    e.printStackTrace();
                    return null;
                }
            }

我已经定义了ArrayList al;在上课之初

当我登录或调试srt变量时，该值是真正的链接，如下所示：

http://ip/The_Last_Lions.srt

然后 onPostExecute ：

@Override
        protected void onPostExecute(final ArrayList<DetailItem> results) {
            if (results != null && !results.equals("")) {
               String url = results.get(0).getUrladaptive();

             String finalSrt = al.get(0);
            InputStream srtStream = null;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
                srtStream = new ByteArrayInputStream(finalSrt.getBytes(StandardCharsets.UTF_8));
            }

您会看到我将字符串finalSrt转换为InputStream srtStream，因为它需要在此处使用InputStream类型：

videoView.setMediaController(playerControlView.getMediaControllerWrapper());
                    videoView.seekTo(position);
                  videoView.start();

                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
                        videoView.addSubtitleSource(srtStream,
                                MediaFormat.createSubtitleFormat("text/srt",Locale.ENGLISH.getLanguage()));
                    }

所以我得到了这个错误：

致命异常：主进程：android.os.NetworkOnMainThreadException

然后使用以下代码解决它：

setContentView(R.layout.activity_shasha_detail);
            if (android.os.Build.VERSION.SDK_INT > 9)
            {
                StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
                StrictMode.setThreadPolicy(policy);
            }

但是现在，当我运行该应用程序时，它只是在打开此活动时崩溃，并且出现此错误：

beginning of crash
09-18 08:21:19.271 25904-25904/giga.net.world.GN E/AndroidRuntime: FATAL EXCEPTION: main
    Process: giga.net.world.GN, PID: 25904
    java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
        at java.util.ArrayList.get(ArrayList.java:411)
        at giga.net.world.GN.ShashaDetail$ShashaDetails.onPostExecute(ShashaDetail.java:513)
        at giga.net.world.GN.ShashaDetail$ShashaDetails.onPostExecute(ShashaDetail.java:450)
        at android.os.AsyncTask.finish(AsyncTask.java:660)
        at android.os.AsyncTask.-wrap1(AsyncTask.java)
        at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:677)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6682)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)

问题在于以下几行：

public class ShashaDetails extends AsyncTask<String, Void, ArrayList<DetailItem>> {

和：

String finalSrt = al.get(0);

这是logcat的另一个例外：

09-18 09:15:29.267 9637-9637/giga.net.world.GN E/BoostFramework: BoostFramework() : Exception_1 = java.lang.ClassNotFoundException: Didn't find class "com.qualcomm.qti.Performance" on path: DexPathList[[],nativeLibraryDirectories=[/system/lib64, /vendor/lib64]]
09-18 09:15:37.108 9637-9653/giga.net.world.GN W/System.err: java.io.FileNotFoundException: http://ip/The_Last_Lions.srt
        at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:254)
        at giga.net.world.GN.ShashaDetail$ShashaDetails.doInBackground(ShashaDetail.java:481)
        at giga.net.world.GN.ShashaDetail$ShashaDetails.doInBackground(ShashaDetail.java:450)
        at android.os.AsyncTask$2.call(AsyncTask.java:304)
        at java.util.concurrent.FutureTask.run(FutureTask.java:237)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:243)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
        at java.lang.Thread.run(Thread.java:762)

如果我直接在浏览器中打开链接并下载到设备中的srt文件，我不明白为什么它会超出限制范围

我也尝试过使用公共IP上传srt文件，您可以通过以下链接进行检查：

http://172.104.238.92/text.srt

并通过添加以下行将代码更改为使用此静态网址的网络：

String srts = "http://172.104.238.92/text.srt";

代替原来的：

String srts = simpleJsonTVData.get(0).getSrt();

然后，当我运行ap并打开它时，我得到相同的错误，这是它的日志：

09-18 10:42:48.219 11961-11961/giga.net.world.GN E/BoostFramework: BoostFramework() : Exception_1 = java.lang.ClassNotFoundException: Didn't find class "com.qualcomm.qti.Performance" on path: DexPathList[[],nativeLibraryDirectories=[/system/lib64, /vendor/lib64]]
09-18 10:42:54.212 11961-11995/giga.net.world.GN W/System.err: java.io.FileNotFoundException: http://172.104.238.92/text.srt
09-18 10:42:54.325 11961-11961/giga.net.world.GN E/AndroidRuntime: FATAL EXCEPTION: main
    Process: giga.net.world.GN, PID: 11961
    java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
        at java.util.ArrayList.get(ArrayList.java:411)
        at giga.net.world.GN.ShashaDetail$ShashaDetails.onPostExecute(ShashaDetail.java:514)
        at giga.net.world.GN.ShashaDetail$ShashaDetails.onPostExecute(ShashaDetail.java:450)
        at android.os.AsyncTask.finish(AsyncTask.java:660)
        at android.os.AsyncTask.-wrap1(AsyncTask.java)
        at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:677)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6682)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)

不知道出什么问题

从url读取并键入srt文件的内容

0 个答案: