Android ImageGetter width

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You may have problem with width of images from img-tags.
If the image is wider than the screen, it will be ugly. I can help you.
If the image is need to be scaled welcome too.

We have image in drawable resources named drawable_name.png and string in string.xml:

<string name="text_with_html_and_img"><![CDATA[ <h3>Hello, bro!</h3><img src="drawable_name"> ]]></string>

Here the code from activity:

String texts = getString(R.string.text_with_html_and_img);
TextView textView = findById(this, R.id.text_view_id);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
    textView.setText(Html.fromHtml(texts, Html.FROM_HTML_MODE_LEGACY, new ResourceImageGetter(this), null));
} else {
    textView.setText(Html.fromHtml(texts, new ResourceImageGetter(this), null));
}

Here our magic class (i realy like it):

public static class ResourceImageGetter implements Html.ImageGetter {
    private Context mContext;
 
    public ResourceImageGetter(Context context) {
        mContext = context;
    }
 
    @Override
    public Drawable getDrawable(String source) {
        int mult = 1;
        if (source.contains("/")) {
            mult = Integer.valueOf(source.substring(source.indexOf('/') + 1));
            source = source.substring(0, source.indexOf('/'));
        }
        Resources resources = mContext.getResources();
        int identifier = resources.getIdentifier(source, "drawable", mContext.getPackageName());
        Drawable drawable = ContextCompat.getDrawable(mContext, identifier);
        DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics();
        int widthDisplay = displayMetrics.widthPixels;
        int widthDrawable = drawable.getIntrinsicWidth();
        if (widthDisplay < widthDrawable)
            drawable.setBounds(0, 0, widthDisplay, (widthDisplay * drawable.getIntrinsicHeight() / drawable.getIntrinsicWidth()));
        else {
            int heightDrawable = drawable.getIntrinsicHeight();
            drawable.setBounds(0, 0, widthDrawable / mult, heightDrawable / mult);
        }
        return drawable;
    }
}

If you want reduce the width and height of the image proportionally use this example

<string name="text_with_html_and_img"><![CDATA[ <h3>Hello, bro!</h3><img src="drawable_name/4"> ]]></string>

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