In XML, we can set a text color by the textColor attribute, like android:textColor="#FF0000". But how do I change it by coding?
I tried something like:
holder.text.setTextColor(R.color.Red);
Where holder is just a class and text is of type TextView. Red is an RGB value (#FF0000) set in strings.
But it shows a different color rather than red. What kind of parameter can we pass in setTextColor()? In documentation, it says int, but is it a resource reference value or anything else?
You should use:
holder.text.setTextColor(Color.RED);
You can use various functions from the Color class to get the same effect of course.
Color.parseColor (Manual) (like LEX uses)
text.setTextColor(Color.parseColor("#FFFFFF"));
Color.rgb and Color.argb (Manual rgb) (Manual argb) (like Ganapathy uses)
holder.text.setTextColor(Color.rgb(200,0,0));
holder.text.setTextColor(Color.argb(0,200,0,0));
And of course, if you want to define your color in an XML file, you can do this:
<color name="errorColor">#f00</color>
because the getColor() function is deprecated1, you need to use it like so:
ContextCompat.getColor(context, R.color.your_color);
You can also insert plain HEX, like so:
myTextView.setTextColor(0xAARRGGBB);
Where you have an alpha-channel first, then the color value.
Check out the complete manual of course, public class Color extends Object.
1This code used to be in here as well:
textView.setTextColor(getResources().getColor(R.color.errorColor));
This method is now deprecated in Android M. You can however use it from the contextCompat in the support library, as the example now shows.
If you still want to specify your colors in your XML file:
<color name="errorColor">#f00</color>
Then reference it in your code with one of these two methods:
textView.setTextColor(getResources().getColor(R.color.errorColor, getResources().newTheme()));
or
textView.setTextColor(getResources().getColor(R.color.errorColor, null));
The first is probably preferable if you're compiling against Android M, however the theme you pass in can be null, so maybe that's easier for you?
And if you're using the Compat library you can do something like this
textView.setTextColor(ContextCompat.getColor(context, R.color.errorColor));
You can do this only from an XML file too.
Create a color.xml file in the values folder:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="textbody">#ffcc33</color>
</resources>
Then in any XML file, you can set color for text using,
android:textColor="@color/textbody"
Or you can use this color in a Java file:
final TextView tvchange12 = (TextView) findViewById(R.id.textView2);
//Set color for textbody from color.xml file
tvchange1.setTextColor(getResources().getColor(R.color.textbody));
use the following code in layout.xml
<TextView android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/add"
android:layout_marginTop="16dp"
android:textAppearance="?
android:attr/textAppearanceMedium"
android:textColor="#25383C"
android:textSize="13sp" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/add"
android:layout_marginTop="16dp"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#25383C"
android:textSize="13sp" />
There are many different ways to set color on text view.
Add color value in studio res->values->colors.xml as
<color name="color_purple">#800080</color>
Now set the color in xml or actvity class as
text.setTextColor(getResources().getColor(R.color.color_purple)
If you want to give color code directly use below Color.parseColor code
textView.setTextColor(Color.parseColor("#ffffff"));
You can also use RGB
text.setTextColor(Color.rgb(200,0,0));
Use can also use direct hexcode for textView. You can also insert plain HEX, like so:
text.setTextColor(0xAARRGGBB);
You can also use argb with alpha values.
text.setTextColor(Color.argb(0,200,0,0));
a for Alpha (Transparent) v.
And if you're using the Compat library you can do something like this
text.setTextColor(ContextCompat.getColor(context, R.color.color_purple));
If you plan to use setTextAppearance you should know that it will overwrite the text color with the style inherited from the theme. So if you want to use both, set the color afterwards.
This works:
textView.setTextAppearance(context, android.R.style.TextAppearance_Medium);
textView.setTextColor(Color.RED);
While this will cause your textcolor to be for instance white(for dark theme) or black(for the light theme):
textView.setTextColor(Color.RED);
textView.setTextAppearance(context, android.R.style.TextAppearance_Medium);
Contrary to this in XML the order is arbitrary.
Add these to make changing text color simpler
myView.textColor = Color.BLACK // or Color.parseColor("#000000"), etc.
var TextView.textColor: Int
get() = currentTextColor
set(@ColorInt color) {
setTextColor(color)
}
myView.setTextColorRes(R.color.my_color)
fun TextView.setTextColorRes(@ColorRes colorRes: Int) {
val color = ContextCompat.getColor(context, colorRes)
setTextColor(color)
}
In order to set color of a TextView, TextView.setTextColor(R.color.YOURCOLOR) is not enough!
It has to be used like this –
TextView myText = (TextView) findViewById(R.id.YoutTextViewID);
myText.setTextColor(getResources().getColor(R.color.YOURCOLOR);
OR
myText.setTextColor(Color.parseColor("#54D66A"));
Similarly, I was using color.xml:
<color name="white">#ffffff</color>
<color name="black">#000000</color>
For setting the TextView background like:
textView.setTextColor(R.color.white);
I was getting a different color, but when I used the below code I got the actual color.
textView.setTextColor(Color.parseColor("#ff6363"));
I did this way: Create a XML file, called Colors in res/values folder.
My Colors.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="vermelho_debito">#cc0000</color>
<color name="azul_credito">#4c4cff</color>
<color name="preto_bloqueado">#000000</color>
<color name="verde_claro_fundo_lista">#CFDBC5</color>
<color name="branco">#ffffff</color>
<color name="amarelo_corrige">#cccc00</color>
<color name="verde_confirma">#66b266</color>
</resources>
To get this colors from the xml file, I've used this code: valor it's a TextView, and ctx it's a Context object. I'm not using it from an Activity, but a BaseAdapter to a ListView. That's why I've used this Context Object.
valor.setTextColor(ctx.getResources().getColor(R.color.azul_credito));
Hope it helps.
