麻雀小，五脏全
xml
<android.support.design.widget.FloatingActionButton
android:id="@+id/fuck_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_margin="16dp"
android:backgroundTint="#222"
android:clickable="true"
android:src="@mipmap/ic_launcher"
app:layout_anchor="@id/rvToDoList"
app:layout_anchorGravity="bottom|right|end"
app:rippleColor="#fff" />
java
click event
//find button by id
FloatingActionButton btn = (FloatingActionButton) findViewById(R.id.fuck_button);
//register add click
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
System.out.println(v);
}
});
