TextView as a progressbar with textcolor minipulation?

android, android-layout, android-progressbar, animation, user-interface

Solution

Much better approach would require you to override TextView class. You can use clipping, to split the TextView and draw two parts in different colors.

TextView tv = new TextView(this){
    @Override
    public void draw(Canvas canvas) {
        int color1 = Color.WHITE;
        int color2 = Color.GREEN;

        canvas.save();
        setTextColor(color1);
        setBackgroundColor(color2);
        canvas.clipRect(new Rect(0, 0, (int)(getWidth() * percent), getHeight()));
        super.draw(canvas);
        canvas.restore();

        canvas.save();
        setTextColor(color2);
        setBackgroundColor(color1);
        canvas.clipRect(new Rect((int)(getWidth() * percent), 0, getWidth(), getHeight()));
        super.draw(canvas);
        canvas.restore();
    }  
};

I hope you get the point

Problem

I'm working on improving my app's UI. And in the design I'm using I have a TextView that will act as a progress bar at certain time. The ruslt should look like this : The thing is that parts of text will change their color while the progress is changing I looked into spannablestring in android it would work if I can find the letters that are covered by the progress ( but I don't think this would be easy/accurate) What I'm planning todo now is to use the following: - FrameLayout with : - background textView with a green text and white background. - front Linearlayout that changes width while progressing. - TextView with green background and white text that matches the framelayout width. Is there a better approach?

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