Android圆环形颜色选择器:HoloColorPicker

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:

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<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

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<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

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<com.larswerkman.holocolorpicker.OpacityBar
    android:id="@+id/opacitybar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>

Saturation bar

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<com.larswerkman.holocolorpicker.SaturationBar
    android:id="@+id/saturationbar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>

and a Value bar

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<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.

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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);

framed_colorpicker.png

项目主页:http://www.open-open.com/lib/view/home/1389353422164

原文地址:https://www.cnblogs.com/Free-Thinker/p/4581581.html