CODEWITHSUNDEEP
androidandroid-widgettextview
phriendtj
phriendtj

Reputation: 96

Android How to Remove Text Shadow?

I Have an android program with a bunch of text views. Initially, all of these views have no shadow.

when I press a specific toggle button, I want theses textViews to stand out.

Ideally, I wanted to add a text shadow glow effect to them. this I have successfully done without a problem with textView.setShadowLayer(radius, dx, dy, color)

The problem is, if I press the same toggle button again (which makes the shadows appear), I need to remove the shadows so the text isn't highlighted anymore.

I have tried to set the shadow layer to radius 0 and transparent colors #00FFFFFF, #00000000, and colors #FFFFFFFF, #FF000000. However, none of these set the textView back to the original way it appeared.

any ideas on how to remove the shadow. (I don't really have to remove it, i just want the text to appear the same way as before adding it)

the main goal is to use the toggle button to turn on/off text highlighting for specific textViews and I am open to other methods than using a shadow. Ideally I would like to use a shadow, but any other ideas to highlight the text are fine.

(this part was appended after the answer I received with textLayer.setShadow(0,0,0,0);

i am using this style for textView in the layout xml

<style name="second">
    <item name="android:textColor">@drawable/buttonBabyBlue</item>
    <item name="android:textStyle">bold</item>
    <item name="android:textSize">@dimen/second_text_size</item>
    <item name="android:lines">1</item>
    <item name="android:background">@drawable/baseGray</item>
    <item name="android:layout_height">wrap_content</item>
    <item name="android:layout_width">0dip</item> 
    <item name="android:layout_weight">8.5</item> 
    <item name="android:gravity">bottom|left</item>
    <item name="android:layout_gravity">bottom</item>
</style>

when i press the button which makes the view have a shadow

text.setShadowLayer(GLOW_RADIUS, GLOW_DX, GLOW_DY, R.drawable.buttonBabyBlue);
text.setTextColor(R.drawable.baseGray);

then to remove the shadow

text.setShadowLayer(0, 0, 0, 0);
text.setTextColor(R.drawable.buttonBabyBlue);

that is annoying i have pictures to show and uploaded them but they won't let me show them for fear of spam

Upvotes: 3

Views: 8109

Answers (2)

Sabet Chowdhury
Sabet Chowdhury

Reputation: 167

textView.getPaint().clearShadowLayer();
textView.invalidate();

This worked for me.

Upvotes: 2

Ron
Ron

Reputation: 24235

Call textview.setShadowLayer(0,0,0,0) to clear the shadow layer.

There is a clearShadowLayer() method in Paint class, but internally that too calls the setShadowLayer with all zero parameters. So seems like that won't work for you.

The only other way I can think of is by overriding the onDraw method. Maintain a TextPaint object that is set with the shadow parameters. 

@Override
void setShadowLayer(.....) {                  // do not call super
    paintWithShadowLayer.setShadowLayer(....); // the other with shadow layer set
}

@Override
void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    ...
    if (bToggleON) {
         canvas.drawText(text, index, count, x, y, paintWithShadowLayer);
    } else {
         canvas.drawText(text, index, count, x, y, getPaint());
    }
    ...
}

Upvotes: 9

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