Question

我尝试了很多方法，但没有成功而且我知道使用了8a93b54b-c75a-49b5-a5be-9060715b1a33 Microsoft-Windows-DirectSound ae4bd3be-f36f-45b6-8d21-bdd6fb832853 Microsoft-Windows-Audio方法，我的意思是无论如何都无法创建关于它的循环此处的网页：http://www.planecrashinfo.com/recent.htm 已经感谢我的新代码如下我不知道我如何同步他说的话

First();

我不知道我该怎么写这段代码beetwen scops private class FetchImageLogo extends AsyncTask<Void, Void, Void> { Bitmap bitmap; @Override protected void onPreExecute() { super.onPreExecute(); progressDialog = new ProgressDialog(MainActivity.this); progressDialog.setTitle("LOGO"); progressDialog.setMessage("Logo Çekiliyor..."); progressDialog.setIndeterminate(false); progressDialog.show(); } @Override protected Void doInBackground(Void... params) { try{ getAllImages(yemekURL); for (int i = 0; i < imagesURLs.size(); i++) { Glide.with(activity_main) .load(imagesURLs.get(i)) .diskCacheStrategy(DiskCacheStrategy.NONE) .skipMemoryCache(true) .into(resimler); } /* Document doc = Jsoup.connect(yemekURL).get(); Element link = doc.select("img").first(); String absHref = link.attr("abs:src"); // "http://jsoup.org/" InputStream input = new java.net.URL(absHref).openStream(); bitmap = BitmapFactory.decodeStream(input);*/ }catch (Exception e){ e.printStackTrace(); } return null; } ArrayList<String> getAllImages(String url) { try { doc = Jsoup.connect(url).get(); } catch (IOException e) { // ToDo "Can not connect the URL, Make sure that the URL starts with [http://...]" return null; } Elements media = doc.select("[src]"); Element link = doc.select("img").first(); for (Element src : media) { if (src.tagName().equals("img")) { // Add images url to the list imagesURLs.add(link.attr("abs:src")); } } return imagesURLs; } @Override protected void onPostExecute(Void aVoid) { logo_layout = (LinearLayout)findViewById(R.id.logo_layout); ImageView img_logo = (ImageView)findViewById(R.id.img_logo); logo_layout.setVisibility(View.VISIBLE); img_logo.setImageBitmap(bitmap); progressDialog.dismiss(); }

Answer 1

您可以尝试使用此代码

ArrayList<String> getAllImages(String url) {
    ArrayList<String> imagesURLs = new ArrayList<>();

    try {
        doc = Jsoup.connect(url).get();
    } catch (IOException e) {
        // ToDo "Can not connect the URL, Make sure that the URL starts with [http://...]"
        return null;
    }

    Elements media = doc.select("[src]");

    for (Element src : media) {
        if (src.tagName().equals("img")) {
            // Add images url to the list
            imagesURLs.add(image.attr("abs:src"));
        }
    }

    return imagesURLs;
}

然后，您可以使用Glide库通过其URL下载，兑现和显示图像：

for (int i = 0; i < imagesURLs.size(); i++) {
    Glide.with(activity)
                .load(imagesURLs.get(i))
                .diskCacheStrategy(DiskCacheStrategy.NONE)
                .skipMemoryCache(true)
                .into(imageView);
}

Answer 2

您需要将其添加到AndroidManifest.xml的application标签之外才能访问Internet。

<uses-permission android:name="android.permission.INTERNET" />
将Glide和Jsoup库添加到您的项目中。

activity_main.xml

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="First Image"
    android:gravity="center"
    android:textSize="18sp"/>

<ImageView
    android:id="@+id/imageView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

MainActivity.java

private ProgressDialog progressDialog;
private ImageView imageView;
private ArrayList<String> imagesURLs = new ArrayList<>();
private String firstImgURL = "";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_download_images);

    imageView = findViewById(R.id.imageView);

    new FetchImageLogo().execute();
}

private class FetchImageLogo extends AsyncTask<Void, Void, Void> {
    //Bitmap bitmap;

    @Override
    protected void onPreExecute() {
        super.onPreExecute();

        progressDialog = new ProgressDialog(MainActivity.this);
        progressDialog.setTitle("LOGO");
        progressDialog.setMessage("Logo Çekiliyor...");
        progressDialog.setIndeterminate(false);
        progressDialog.show();
    }

    @Override
    protected Void doInBackground(Void... params) {
        String yemekURL = "http://www.planecrashinfo.com/recent.htm";

        try {
            imagesURLs = getAllImages(yemekURL);

            // Can not get images URLs
            if (imagesURLs == null) return null;
        } catch (Exception e) {
            e.printStackTrace();
        }

        // Display the first image...
        // you have to put your code in runOnUiThread() to reach UI components
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Glide.with(MainActivity.this)
                        .load(firstImgURL)
                        .diskCacheStrategy(DiskCacheStrategy.NONE)
                        .skipMemoryCache(true)
                        .into(imageView);
            }
        });


        final StringBuilder stringBuilder = new StringBuilder();
        for (int i = 0; i < imagesURLs.size(); i++) {
            // ToDo: you need to create [RecyclerView] to display all images
            /*runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    Glide.with(MainActivity.this)
                            .load(imagesURLs.get(i))
                            .diskCacheStrategy(DiskCacheStrategy.NONE)
                            .skipMemoryCache(true)
                            .into(imageView);
                }
            });*/

            stringBuilder.append("img").append(String.valueOf(i + 1)).append(": ")
                    .append(imagesURLs.get(i)).append("\n");
        }

        // See -> Logcat
        Log.d("Debug_Images", stringBuilder.toString());

        return null;
    }

    ArrayList<String> getAllImages(String url) {
        Document doc;

        try {
            doc = Jsoup.connect(url).get();
        } catch (IOException e) {
            // ToDo "Can not connect the URL, Make sure that the URL starts with [http://...]"
            return null;
        }

        // Get the first image URL
        Element link = doc.select("img").first();
        firstImgURL = link.attr("abs:src");

        // Get all images URLs
        Elements media = doc.select("[src]");
        for (Element img : media) {
            if (img.tagName().equals("img")) {
                // Add images url to the list
                imagesURLs.add(img.attr("abs:src"));
            }
        }

        return imagesURLs;
    }

    @Override
    protected void onPostExecute(Void aVoid) {
        /*logo_layout = (LinearLayout) findViewById(R.id.logo_layout);
        ImageView img_logo = (ImageView) findViewById(R.id.img_logo);
        logo_layout.setVisibility(View.VISIBLE);
        img_logo.setImageBitmap(bitmap);*/
        progressDialog.dismiss();
    }
}

我找不到任何有关将所有图像发送到html网页的代码

2 个答案: