Question

嗨，我是Android的新手，在我的应用程序中，我录制了视频，当我收到录制的视频意图数据时，我的LG手机和我的Nexus出现异常这个问题不会出现

请一位有人帮助我

    private void recordVideo() {

        try {

            String tempTimestamp = "" + TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis());
            File mediaFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath()
                    + "/" + tempTimestamp + ".mp4");
            fileName = tempTimestamp + ".mp4";

            Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
            fileUri = Uri.fromFile(mediaFile);
            System.out.println("file uri is====>" + fileUri);

            intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
            startActivityForResult(intent, Constants.VIDEO_REQUEST_CODE);

        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }
    }


 @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        try {

            if (requestCode == Constants.VIDEO_REQUEST_CODE) {

                if (resultCode == RESULT_OK) {

                    if (data.getData() != null) {


                    } else {

                        if (data.getExtras().get("data") != null) {
                            data.getExtras().get("data");
                        }
                    }
                }
            }

        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }
    }

例外： -

11-05 05:06:12.859 26942-26942/com.ensis.epatient W/System.err: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Bundle android.content.Intent.getExtras()' on a null object reference
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at com.ensis.epatient.Gallery.VideosAttachmentActivity.onActivityResult(VideosAttachmentActivity.java:283)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at android.app.Activity.dispatchActivityResult(Activity.java:6258)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at android.app.ActivityThread.deliverResults(ActivityThread.java:3685)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at android.app.ActivityThread.handleSendResult(ActivityThread.java:3732)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at android.app.ActivityThread.access$1300(ActivityThread.java:162)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1398)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:102)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at android.os.Looper.loop(Looper.java:135)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:5431)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at java.lang.reflect.Method.invoke(Method.java:372)
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914)
11-05 05:06:12.869 26942-26942/com.ensis.epatient I/Activity: Activity.onPostResume() called 
11-05 05:06:12.869 26942-26942/com.ensis.epatient W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:707)

Answer 1

尝试更改此内容：

read,write,delete

为：

if (data.getData() != null) {

} else {
    if (data.getExtras().get("data") != null) {
        data.getExtras().get("data");
    }
}

Answer 2

当您使用lda = models.LdaModel.load('lda.model') for i in range(0, lda.num_topics): with open('output_file.txt', 'w') as outfile: outfile.write('{}\n'.format('Topic #' + str(i + 1) + ': ')) for word, prob in lda.show_topic(i, topn=20): outfile.write('{}\n'.format(word.encode('utf-8'))) outfile.write('\n')作为相机意图时，uotput存储在该文件中。 Topic #69: pet dental tooth adopt animal puppy rescue dentist adoption animal shelter pet dentistry vet paw pup patient mix foster owner Topic #70: periscope disneyland disney snapchat brandon britney periscope periscope replay britneyspear buffaloexchange britneyspear https meerkat blab periscope kxci toni disneyland location中返回的数据将为空。

您可以使用MediaStore.EXTRA_OUTPUT传递的onActivityResult()来访问相机拍摄的图像或视频。

fileUri

Camera Intent在android中提供异常

例外： -

2 个答案: