Added a colour wheel-style colour picker in the following way. Documentation here and code here. Copyright 2012 Lars Werkman
Created new activity and layout, into Build, Edit libraries and dependencies and added com.larswerkman.holocolorpicker as a library dependency.
In the layout added:
<com.larswerkman.holocolorpicker.ColorPicker
android:id="@+id/picker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<com.larswerkman.holocolorpicker.SaturationBar
android:id="@+id/saturationbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/picker"
android:layout_alignParentEnd="true" />
<com.larswerkman.holocolorpicker.ValueBar
android:id="@+id/valuebar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/saturationbar"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="2"
android:layout_below="@+id/valuebar">
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Change Color"
android:layout_weight="1" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text Color"
android:textColor="@android:color/white"
android:textSize="20sp"
android:layout_weight="1" />
</LinearLayout>
In the activity implement ColorPicker.OnColorChangedListener and declare these:
private ColorPicker picker;
private SaturationBar saturationBar;
private ValueBar valueBar;
private Button button;
private TextView text;
Then in onCreate
picker = (ColorPicker) findViewById(R.id.picker);
saturationBar = (SaturationBar) findViewById(R.id.saturationbar);
valueBar = (ValueBar) findViewById(R.id.valuebar);
button = (Button) findViewById(R.id.button1);
text = (TextView) findViewById(R.id.textView1);
picker.addSaturationBar(saturationBar);
picker.addValueBar(valueBar);
picker.setOnColorChangedListener(this);
valueBar.setOnValueChangedListener(new ValueBar.OnValueChangedListener() {
@Override
public void onValueChanged(int value) {
}
});
saturationBar.setOnSaturationChangedListener(new SaturationBar.OnSaturationChangedListener() {
@Override
public void onSaturationChanged(int saturation) {
}
});
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//try to get hex of colour
text.setText(Integer.toHexString(picker.getColor()).substring(2));
text.setTextColor(picker.getColor());
picker.setOldCenterColor(picker.getColor());
}
});
Finally add
@Override
public void onColorChanged(int color) {
//gives the color when it's changed.
}