How Can I Get The Fgcolor Attribute To Work On Recent Android Versions?

I used to be able to do this: white blue But now it doesn't work any more. It seems to be a bu

Solution 1:

How about we leverage the fact that colors without the high bit set still works and just replace it with the correct colors? So you can have a method like this:

private CharSequence fixSpanColor(CharSequence text) {
    if (text instanceof Spanned) {
        finalSpannableStrings=newSpannableString(text);
        final ForegroundColorSpan[] spans = s.getSpans(0, s.length(), ForegroundColorSpan.class);
        for (final ForegroundColorSpan oldSpan : spans) {
            finalForegroundColorSpannewSpan=newForegroundColorSpan(oldSpan.getForegroundColor() | 0xFF000000);
            s.setSpan(newSpan, s.getSpanStart(oldSpan), s.getSpanEnd(oldSpan), s.getSpanFlags(oldSpan));
            s.removeSpan(oldSpan);
        }
        return s;
    } else {
        return text;
    }
}

You will then need to pass any text with the required color accent through this method, the simplest example would be modifying all calls like this:

tv.setText(getText(R.string.foo));

To:

tv.setText(fixSpanColor(getText(R.string.foo)));

Hopefully, depending on how your code is structured, there might already a central place where you can add this extra method call.

Solution 2:

I have some awful workaround in my client code to manually reset the ForegroundColorSpans to the proper color, but it would be great not to have to do so.

I think the workaround that the issue reporter's talking about is the following:

Define the string as:

<string name="foo">white blue</string>

In your activity:

TextViewtv= (TextView) findViewById(R.id.textView1);

SpannableStringspannableString=newSpannableString(getResources().getString(R.string.foo));

ForegroundColorSpanfcs=newForegroundColorSpan(getResources().getColor(R.color.bluish));

spannableString.setSpan(fcs, spannableString.toString().indexOf(" ") + 1,
                       spannableString.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);

tv.setText(spannableString);

R.color.bluish is defined as <color name="bluish">#ff6890a5</color>.

But, using " " (space) to distinguish and apply the ForegroundColorSpan would only be practical if you have a small number of strings defined.

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The following modification might actually be easier for you to carry out:

Define the string as:

<stringname="foo_sep_1"><![CDATA[white <font color=\"#6890a5\">blue</font>]]></string>

Or:

<stringname="foo_sep_1">white &lt;font color="#6890a5"&gt;blue&lt;/font&gt;</string>

In your activity:

TextView tv2 = (TextView) findViewById(R.id.textView2);

tv2.setText(Html.fromHtml(getResources().getString(R.string.foo_sep_1)));

Be careful about the color code: HTML color codes do not have alpha values (RRGGBB will work, AARRGGBB will not)

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Another workaround is using Html.fromHtml(String) directly:

TextView tv3 = (TextView) findViewById(R.id.textView3);

tv3.setText(Html.fromHtml("white <fontcolor='#6890a5'>blue</font>"));

Solution 3:

Kudos to TWiStErRob who found a solution that doesn't involve code in https://stackoverflow.com/a/11577658/338479. To quote:

for any color above 7fffffff apply the following: <font color="#ff6890a5"> put ff6890a5 into a calculator (optionally convert to decimal first) and flip the sign, then (optionally convert back to hexa) take the last 8 hexadecimal digits and use <font color="-#00976F5B">.