Android圆环形颜色选择器：HoloColorPicker

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<com.larswerkman.holocolorpicker.ColorPicker

    android:id="@+id/picker"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"/>

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<com.larswerkman.holocolorpicker.SVBar

    android:id="@+id/svbar"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"/>

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<com.larswerkman.holocolorpicker.OpacityBar

    android:id="@+id/opacitybar"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"/>

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<com.larswerkman.holocolorpicker.SaturationBar

    android:id="@+id/saturationbar"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"/>

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<com.larswerkman.holocolorpicker.ValueBar

    android:id="@+id/valuebar"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"/>

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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);