Android圆环形颜色选择器：HoloColorPicker
jopen
10年前
HoloColorPicker实现圆环形颜色选择器，可以改变颜色饱和度来选择颜色。选择颜色时，可以用手指沿着圆环滑动一个滑块，从而选择颜色。
添加以下XML至你的布局中：
<com.larswerkman.holocolorpicker.ColorPicker android:id="@+id/picker" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
To add a Saturation/Value bar to your layout add this to your xml
<com.larswerkman.holocolorpicker.SVBar android:id="@+id/svbar" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
The same goes for the Opacity bar
<com.larswerkman.holocolorpicker.OpacityBar android:id="@+id/opacitybar" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
Saturation bar
<com.larswerkman.holocolorpicker.SaturationBar android:id="@+id/saturationbar" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
and a Value bar
<com.larswerkman.holocolorpicker.ValueBar android:id="@+id/valuebar" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
To connect the bars with the colorpicker and to get the selected color.
ColorPicker picker = (ColorPicker) findViewById(R.id.picker); SVBar svBar = (SVBar) findViewById(R.id.svbar); OpacityBar opacityBar = (OpacityBar) findViewById(R.id.opacitybar); SaturationBar saturationBar = (SaturationBar) findViewById(R.id.saturationbar); ValueBar valueBar = (ValueBar) findViewById(R.id.valuebar); picker.addSVBar(svBar); picker.addOpacityBar(opacityBar); picker.addSaturationBar(saturationBar); picker.addValueBar(valueBar); //To get the color picker.getColor(); //To set the old selected color u can do it like this picker.setOldCenterColor(picker.getColor()); // adds listener to the colorpicker which is implemented //in the activity picker.setOnColorChangedListener(this);
