Java Code Examples for android.text.Html#ImageGetter

private Html.ImageGetter obtainImageGetter() {
	if (_imageGetter != null) {
		return _imageGetter;
	}
	_imageGetter = new Html.ImageGetter() {
		@Override
		public Drawable getDrawable(String source) {
			if (_imageCache == null) {
				_imageCache = new XulCachedHashMap<String, SpannedLabelImage>();
			}
			SpannedLabelImage spannedLabelImage = _imageCache.get(source);
			if (spannedLabelImage == null) {
				spannedLabelImage = new SpannedLabelImage();
				spannedLabelImage._source = source;
				_imageCache.put(source, spannedLabelImage);
				_imageCacheChanged = true;
			}
			if (spannedLabelImage._drawable == null) {
				return null;
			}
			return spannedLabelImage._drawable;
		}
	};
	return _imageGetter;
}
 

private Html.ImageGetter obtainImageGetter() {
	if (_imageGetter != null) {
		return _imageGetter;
	}
	_imageGetter = new Html.ImageGetter() {
		@Override
		public Drawable getDrawable(String source) {
			if (_imageCache == null) {
				_imageCache = new XulCachedHashMap<String, SpannedLabelImage>();
			}
			SpannedLabelImage spannedLabelImage = _imageCache.get(source);
			if (spannedLabelImage == null) {
				spannedLabelImage = new SpannedLabelImage();
				spannedLabelImage._source = source;
				_imageCache.put(source, spannedLabelImage);
				_imageCacheChanged = true;
			}
			if (spannedLabelImage._drawable == null) {
				return null;
			}
			return spannedLabelImage._drawable;
		}
	};
	return _imageGetter;
}
 

private static void startImg(Editable text, Attributes attributes, Html.ImageGetter img) {
    String src = attributes.getValue("", "src");
    Drawable d = null;

    if (img != null) {
        d = img.getDrawable(src);
    }

    if (d == null) {
        //d = Resources.getSystem().
        //        getDrawable(R.drawable.seek_thumb);
        //d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
        return;
    }

    int len = text.length();
    text.append("\uFFFC");

    text.setSpan(new ImageSpan(d, src), len, text.length(),
            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
 

/**
     * Parses String containing HTML to Android's Spannable format and displays it in this TextView.
     *
     * @param html String containing HTML, for example: "<b>Hello world!</b>"
     */
    public void setHtmlFromString(String html, boolean useLocalDrawables) {
        Html.ImageGetter imgGetter;
        if (useLocalDrawables) {
            imgGetter = new LocalImageGetter(getContext());
        } else {
            imgGetter = new UrlImageGetter(this, getContext());
        }

        try {
            // this uses Android's Html class for basic parsing, and HtmlTagHandler
            setText(Html.fromHtml(html, imgGetter, new HtmlTagHandler()));
        } catch (RuntimeException e) {
            setText("");
        }
        // make links work
        setMovementMethod(LinkMovementCheck.getInstance());

        // no flickering when clicking textview for Android < 4, but overriders color...
//        text.setTextColor(getResources().getColor(android.R.color.secondary_text_dark_nodisable));
    }
 

private void startImg(SpannableStringBuilder text, String src, Html.ImageGetter img) {
    Drawable d = null;

    if (img != null) {
        d = img.getDrawable(src);
    }
    if (d == null) {
        d = getResources().getDrawable(R.mipmap.ic_launcher);
        d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
    }
    int len = text.length();
    text.append("\uFFFC");

    text.setSpan(new ImageSpan(d, src), len, text.length(),
            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
 

private static void startImg(SpannableStringBuilder text,
                             Attributes attributes, Html.ImageGetter img) {
    String cssClass = attributes.getValue("class");
    String src = cssClass != null &&  attributes.getValue("", "src") == null ? cssClass.substring(cssClass.indexOf("-") + 1) : attributes.getValue("", "src");
    Drawable d = null;

    if (img != null) {
        d = img.getDrawable(src);
    }

    if (d == null) {
        // don't draw anything
        return;
    }

    int len = text.length();
    text.append("\uFFFC");

    text.setSpan(new ImageSpan(d, src), len, text.length(),
            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
 

public AsyncLoadNetworkPic(Context context, TextView editText, String content, Html.ImageGetter imageGetter, Html.TagHandler htmlTagHandler){
    this.context=context;
    this.editText = editText;
    this.content = content;
    this.imageGetter = imageGetter;
    this.htmlTagHandler = htmlTagHandler;
}
 

public HtmlToSpannedConverter(String source, Html.ImageGetter imageGetter,
                              Html.TagHandler tagHandler, Parser parser, int flags) {
    mSource = source;
    mSpannableStringBuilder = new SpannableStringBuilder();
    mImageGetter = imageGetter;
    mTagHandler = tagHandler;
    mReader = parser;
    mFlags = flags;
}
 

public void onBind(byte[] result) {
    String text = new String(result).trim();
    //Log.d("text", text = UnicodeDecoder.unescape2(text));
    Html.ImageGetter imageGetter = new Html.ImageGetter() {
        @Override
        public Drawable getDrawable(String source) {
            //Log.d("text", source);
            Bitmap bitmap = StreamUtils.base64ToBitmap(source.replaceAll("data:image/(png|jpeg);base64,", "")/*.replaceAll("\\s", "")*/);

            if (null == bitmap || (bitmap.getWidth() < minImgHeight && bitmap.getHeight() < minImgHeight)) {
                Log.d("text", "bitmap decode failed.");
                return null;
            }
            float width = bitmap.getWidth() * systemScale;
            float height = bitmap.getHeight() * systemScale;
            if (width > screenWidth) {
                float ratio = screenWidth / width;
                height = ratio * height;
                width = screenWidth;
            }
            Drawable drawable = new BitmapDrawable(null, bitmap);
            drawable.setBounds(0, 0, (int) width, (int) height);
            return drawable;
        }
    };
    Spanned spanned = AKHtml.fromHtml(text, imageGetter, null);
    textView.setText(spanned);
}
 

/**
 * Wrapper around Html.fromHtml for deprecation.
 */
@SuppressWarnings("deprecation")
private static CharSequence fromHtml(String source, Html.ImageGetter imageGetter, CustomHtmlTagHandler customHtmlTagHandler) {
    if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        return Html.fromHtml(source, Html.FROM_HTML_MODE_LEGACY, imageGetter, customHtmlTagHandler);
    } else {
        return Html.fromHtml(source, imageGetter, customHtmlTagHandler);
    }
}
 

public CustomHtmlToSpannedConverter(String source,
                                    Html.ImageGetter imageGetter, Html.TagHandler tagHandler,
                                    Parser parser, Html.ImageGetter emojiGetter, String baseUri, Context context) {
    mSource = source;
    mSpannableStringBuilder = new SpannableStringBuilder();
    mImageGetter = imageGetter;
    mTagHandler = tagHandler;
    mReader = parser;
    mEmojiGetter = emojiGetter;
    mBaseUri = baseUri;
    userMentionColor = ContextCompat.getColor(context, R.color.dark_red);
    userMentionSelfColor = ContextCompat.getColor(context, R.color.self_mention_color);
}
 

/**
 * 解析markdown文本并返回spanned
 *
 * @param reader      BufferReader
 * @param imageGetter 图片获取回调
 * @param textView    textView
 * @return spanned
 */
public static Spanned fromMarkdown(BufferedReader reader, Html.ImageGetter imageGetter, TextView textView) {
    MarkDownParser parser = new MarkDownParser(reader, new StyleBuilderImpl(textView, imageGetter));
    try {
        return parser.parse();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}
 

/**
 * 解析markdown文本并返回spanned
 *
 * @param inputStream 输入流
 * @param imageGetter 图片获取回调
 * @param textView    textView
 * @return spanned
 */
public static Spanned fromMarkdown(InputStream inputStream, Html.ImageGetter imageGetter, TextView textView) {
    MarkDownParser parser = new MarkDownParser(inputStream, new StyleBuilderImpl(textView, imageGetter));
    try {
        return parser.parse();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}
 

/**
 * 解析markdown文本并返回spanned
 *
 * @param source      源文本
 * @param imageGetter 图片获取回调
 * @param textView    textView
 * @return spanned
 */
public static Spanned fromMarkdown(String source, Html.ImageGetter imageGetter, TextView textView) {
    MarkDownParser parser = new MarkDownParser(source, new StyleBuilderImpl(textView, imageGetter));
    try {
        return parser.parse();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}
 

public StyleBuilderImpl(TextView textView, Html.ImageGetter imageGetter) {
    this.textViewWeakReference = new WeakReference<>(textView);
    this.imageGetter = imageGetter;


    Context context = textView.getContext();
    TypedArray a = context.obtainStyledAttributes(null, R.styleable.MarkdownTheme, R.attr.markdownStyle, 0);
    final boolean failed = !a.hasValue(0);
    if (failed) {
        Log.w("Markdown", "Missing markdownStyle in your theme, using hardcoded color.");

        h1_text_color = 0xdf000000;
        h6_text_color = 0x8a000000;
        quota_color = 0x4037474f;
        quota_text_color = 0x61000000;
        code_text_color = 0xd8000000;
        code_background_color = 0x0c37474f;
        link_color = 0xdc3e7bc9;
        h_under_line_color = 0x1837474f;
    } else {
        h1_text_color = a.getColor(R.styleable.MarkdownTheme_h1TextColor, 0);
        h6_text_color = a.getColor(R.styleable.MarkdownTheme_h6TextColor, 0);
        quota_color = a.getColor(R.styleable.MarkdownTheme_quotaColor, 0);
        quota_text_color = a.getColor(R.styleable.MarkdownTheme_quotaTextColor, 0);
        code_text_color = a.getColor(R.styleable.MarkdownTheme_codeTextColor, 0);
        code_background_color = a.getColor(R.styleable.MarkdownTheme_codeBackgroundColor, 0);
        link_color = a.getColor(R.styleable.MarkdownTheme_linkColor, 0);
        h_under_line_color = a.getColor(R.styleable.MarkdownTheme_underlineColor, 0);
    }

    a.recycle();
}
 

static SpannableStringBuilder fromDocument(
        Context context, @NonNull Document document, boolean compress,
        @Nullable Html.ImageGetter imageGetter, @Nullable Html.TagHandler tagHandler) {
    return fromDocument(context, document, true, compress, imageGetter, tagHandler);
}
 

public void setTextViewHTML(String html, Html.ImageGetter imgGetter) {
    SpannableStringBuilder strBuilder = new SpannableStringBuilder(Html.fromHtml(html, imgGetter, null));
    removeUnderlines(strBuilder);
    setText(strBuilder);
}
 

static Spanned fromHtml(@NonNull String html, boolean compress, @Nullable Html.ImageGetter imageGetter, @Nullable Html.TagHandler tagHandler, Context context) {
    Document document = JsoupEx.parse(html);
    return fromDocument(context, document, false, compress, imageGetter, tagHandler);
}
 

/**
 * Parses String containing HTML to Android's Spannable format and displays it in this TextView.
 * Using the implementation of Html.ImageGetter provided.
 *
 * @param html        String containing HTML, for example: "<b>Hello world!</b>"
 * @param imageGetter for fetching images. Possible ImageGetter provided by this library:
 *                    HtmlLocalImageGetter and HtmlRemoteImageGetter
 */
public void setHtml(@NonNull String html, @Nullable Html.ImageGetter imageGetter) {
    setText(HtmlFormatter.formatHtml(html, imageGetter, clickableTableSpan, drawTableLinkSpan, onClickATagListener,indent, removeTrailingWhiteSpace));

    // make links work
    setMovementMethod(LocalLinkMovementMethod.getInstance());
}
 

/**
 * Returns displayable styled text from the provided HTML string with the legacy flags
 * {@link #FROM_HTML_MODE_LEGACY}.
 *
 * @deprecated use {@link #fromHtml(String, int, Html.ImageGetter, Html.TagHandler)} instead.
 */
@Deprecated
public static Spanned fromHtml(String source, Html.ImageGetter imageGetter, Html.TagHandler tagHandler) {
    return fromHtml(source, FROM_HTML_MODE_LEGACY, imageGetter, tagHandler);
}