public static String concernStackString(BlockInfo blockInfo) {
        String result = "";
        for (String stackEntry : blockInfo.threadStackEntries) {
            if (Character.isLetter(stackEntry.charAt(0))) {
                String[] lines = stackEntry.split(BlockInfo.SEPARATOR);
                for (String line : lines) {
                    String keyStackString = concernStackString(line);
                    if (keyStackString != null) {
                        return keyStackString;
                    }
                }
                return classSimpleName(lines[0]);
            }
        }
        return result;
    }
Get key stack string to show as title in ui list.
blockcanary-android/src/main/java/com/github/moduth/blockcanary/ui/BlockCanaryUtils.java