<!-- 默认效果 -->
<com.sd.lib.blingbutton.FBlingButton
    android:layout_width="80dp"
    android:layout_height="80dp"
    android:onClick="onClick" />

<com.sd.lib.blingbutton.FBlingButton
    android:layout_width="80dp"
    android:layout_height="80dp"
    android:layout_marginTop="5dp"
    android:onClick="onClick"
    app:bbColor="@color/colorAccent"
    app:bbNormalInside="20dp" />

<com.sd.lib.blingbutton.FBlingButton
    android:layout_width="80dp"
    android:layout_height="80dp"
    android:onClick="onClick"
    app:bbBlingInsideDelta="0dp"
    app:bbBlingOutsideDelta="-20dp"
    app:bbSelectedInside="50dp"
    app:bbSelectedOutside="80dp" />

<com.sd.lib.blingbutton.FBlingButton
    android:layout_width="80dp"
    android:layout_height="80dp"
    android:onClick="onClick"
    app:bbBlingInsideDelta="10dp"
    app:bbBlingOutsideDelta="-10dp"
    app:bbSelectedInside="70dp"
    app:bbSelectedOutside="80dp" />
```xml

```java
public class MainActivity extends AppCompatActivity implements View.OnClickListener
{
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    public void onClick(View v)
    {
        // 切换状态
        v.setSelected(!v.isSelected());
    }
}

<resources>

    <declare-styleable name="LibBlingButton">
        <!-- 正常状态内边直径，默认0 -->
        <attr name="bbNormalInside" format="dimension" />

        <!-- 正常状态外边直径，默认70% -->
        <attr name="bbNormalOutside" format="dimension" />

        <!-- 选中状态内边直径，默认90% -->
        <attr name="bbSelectedInside" format="dimension" />

        <!-- 选中状态外边直径，默认100% -->
        <attr name="bbSelectedOutside" format="dimension" />

        <!-- 闪烁状态内边直径相对于选中状态内边直径的偏移量，默认10% -->
        <attr name="bbBlingInsideDelta" format="dimension" />

        <!-- 闪烁状态外边直径相对于选中状态外边直径的偏移量，默认0 -->
        <attr name="bbBlingOutsideDelta" format="dimension" />

        <!-- 状态切换的动画时长，默认300毫秒 -->
        <attr name="bbStateDuration" format="integer" />

        <!-- 闪烁一次动画时长，默认500毫秒 -->
        <attr name="bbBlingDuration" format="integer" />

        <!-- 颜色，默认白色 -->
        <attr name="bbColor" format="color" />
    </declare-styleable>

</resources>