Android CircularFloatingActionMenu （1）

Android CircularFloatingActionMenu在github上项目主页地址：https://github.com/oguzbilgener/CircularFloatingActionMenu
Android CircularFloatingActionMenu要实现的效果如动态图所示：

Java代码：

import android.animation.ObjectAnimator;
import android.animation.PropertyValuesHolder;
import android.app.Activity;
import android.os.Bundle;
//import android.view.Menu;
//import android.view.MenuItem;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;

import com.oguzdev.circularfloatingactionmenu.library.FloatingActionButton;
import com.oguzdev.circularfloatingactionmenu.library.FloatingActionMenu;
import com.oguzdev.circularfloatingactionmenu.library.SubActionButton;

/**
 * 一个FloatingActionButton有一个FloatingActionMenu，FloatingActionMenu添加动画弹出的子菜单。
 * FloatingActionButton的按钮点击事件将触发、弹出FloatingActionMenu中包含的子菜单。
 * FloatingActionMenu使用attachTo方法附着在一个FloatingActionButton上。
 * FloatingActionMenu在attachTo到一个FloatingActionButton后，两者之间发生关联。
 * FloatingActionMenu在添加子菜单时候，首先需要一个SubActionButton.Builder，该SubActionButton.
 * Builder通过setContentView(ImageView
 * image).build()把一个ImageView创建生产一个SubActionButton ,
 * 然后通过FloatingActionMenu.Builder的add方法把前面生成的SubActionButton添加进去。
 * 
 * 
 * 按钮的旋转动画在onMenuOpened和onMenuClosed中做。
 * 
 */

public class MenuWithFABActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		// 添加 右下角的白色+号按钮
		final ImageView fabIconNew = new ImageView(this);
		fabIconNew.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_new_light));
		final FloatingActionButton rightLowerButton = new FloatingActionButton.Builder(this).setContentView(fabIconNew)
				.build();

		SubActionButton.Builder rLSubBuilder = new SubActionButton.Builder(this);

		ImageView rlIcon1 = new ImageView(this);
		ImageView rlIcon2 = new ImageView(this);
		ImageView rlIcon3 = new ImageView(this);
		ImageView rlIcon4 = new ImageView(this);
		rlIcon1.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_chat_light));
		rlIcon2.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_camera_light));
		rlIcon3.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_video_light));
		rlIcon4.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_place_light));

		// Build the menu with default options: light theme, 90 degrees, 72dp
		// radius.
		// Set 4 default SubActionButtons
		// FloatingActionMenu通过attachTo(rightLowerButton)附着到FloatingActionButton
		final FloatingActionMenu rightLowerMenu = new FloatingActionMenu.Builder(this)
				.addSubActionView(rLSubBuilder.setContentView(rlIcon1).build())
				.addSubActionView(rLSubBuilder.setContentView(rlIcon2).build())
				.addSubActionView(rLSubBuilder.setContentView(rlIcon3).build())
				.addSubActionView(rLSubBuilder.setContentView(rlIcon4).build()).attachTo(rightLowerButton).build();

		// Listen menu open and close events to animate the button content view
		rightLowerMenu.setStateChangeListener(new FloatingActionMenu.MenuStateChangeListener() {
			@Override
			public void onMenuOpened(FloatingActionMenu menu) {
				// 增加按钮中的+号图标顺时针旋转45度
				// Rotate the icon of rightLowerButton 45 degrees clockwise
				fabIconNew.setRotation(0);
				PropertyValuesHolder pvhR = PropertyValuesHolder.ofFloat(View.ROTATION, 45);
				ObjectAnimator animation = ObjectAnimator.ofPropertyValuesHolder(fabIconNew, pvhR);
				animation.start();
			}

			@Override
			public void onMenuClosed(FloatingActionMenu menu) {
				// 增加按钮中的+号图标逆时针旋转45度
				// Rotate the icon of rightLowerButton 45 degrees
				// counter-clockwise
				fabIconNew.setRotation(45);
				PropertyValuesHolder pvhR = PropertyValuesHolder.ofFloat(View.ROTATION, 0);
				ObjectAnimator animation = ObjectAnimator.ofPropertyValuesHolder(fabIconNew, pvhR);
				animation.start();
			}
		});

		// 左边中间的红底白色星型按钮
		// Set up the large red button on the center right side
		// With custom button and content sizes and margins
		int redActionButtonSize = getResources().getDimensionPixelSize(R.dimen.red_action_button_size);
		int redActionButtonMargin = getResources().getDimensionPixelOffset(R.dimen.action_button_margin);
		int redActionButtonContentSize = getResources().getDimensionPixelSize(R.dimen.red_action_button_content_size);
		int redActionButtonContentMargin = getResources()
				.getDimensionPixelSize(R.dimen.red_action_button_content_margin);
		int redActionMenuRadius = getResources().getDimensionPixelSize(R.dimen.red_action_menu_radius);
		int blueSubActionButtonSize = getResources().getDimensionPixelSize(R.dimen.blue_sub_action_button_size);
		int blueSubActionButtonContentMargin = getResources()
				.getDimensionPixelSize(R.dimen.blue_sub_action_button_content_margin);

		ImageView fabIconStar = new ImageView(this);
		fabIconStar.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_important));

		FloatingActionButton.LayoutParams starParams = new FloatingActionButton.LayoutParams(redActionButtonSize,
				redActionButtonSize);
		starParams.setMargins(redActionButtonMargin, redActionButtonMargin, redActionButtonMargin,
				redActionButtonMargin);
		fabIconStar.setLayoutParams(starParams);

		FloatingActionButton.LayoutParams fabIconStarParams = new FloatingActionButton.LayoutParams(
				redActionButtonContentSize, redActionButtonContentSize);
		fabIconStarParams.setMargins(redActionButtonContentMargin, redActionButtonContentMargin,
				redActionButtonContentMargin, redActionButtonContentMargin);

		final FloatingActionButton leftCenterButton = new FloatingActionButton.Builder(this)
				.setContentView(fabIconStar, fabIconStarParams)
				.setBackgroundDrawable(R.drawable.button_action_red_selector)// 红底白星按钮选中时候状态变化和背景颜色
				.setPosition(FloatingActionButton.POSITION_LEFT_CENTER)// 左边居中
				.setLayoutParams(starParams).build();

		// Set up customized SubActionButtons for the right center menu
		SubActionButton.Builder lCSubBuilder = new SubActionButton.Builder(this);
		lCSubBuilder.setBackgroundDrawable(getResources().getDrawable(R.drawable.button_action_blue_selector));

		FrameLayout.LayoutParams blueContentParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,
				FrameLayout.LayoutParams.MATCH_PARENT);
		blueContentParams.setMargins(blueSubActionButtonContentMargin, blueSubActionButtonContentMargin,
				blueSubActionButtonContentMargin, blueSubActionButtonContentMargin);
		lCSubBuilder.setLayoutParams(blueContentParams);
		// Set custom layout params
		FrameLayout.LayoutParams blueParams = new FrameLayout.LayoutParams(blueSubActionButtonSize,
				blueSubActionButtonSize);
		lCSubBuilder.setLayoutParams(blueParams);

		ImageView lcIcon1 = new ImageView(this);
		ImageView lcIcon2 = new ImageView(this);
		ImageView lcIcon3 = new ImageView(this);
		ImageView lcIcon4 = new ImageView(this);
		ImageView lcIcon5 = new ImageView(this);

		lcIcon1.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_camera));
		lcIcon2.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_picture));
		lcIcon3.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_video));
		lcIcon4.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_location_found));
		lcIcon5.setImageDrawable(getResources().getDrawable(R.drawable.ic_action_headphones));

		// Build another menu with custom options
		final FloatingActionMenu leftCenterMenu = new FloatingActionMenu.Builder(this)
				.addSubActionView(lCSubBuilder.setContentView(lcIcon1, blueContentParams).build())
				.addSubActionView(lCSubBuilder.setContentView(lcIcon2, blueContentParams).build())
				.addSubActionView(lCSubBuilder.setContentView(lcIcon3, blueContentParams).build())
				.addSubActionView(lCSubBuilder.setContentView(lcIcon4, blueContentParams).build())
				.addSubActionView(lCSubBuilder.setContentView(lcIcon5, blueContentParams).build())
				.setRadius(redActionMenuRadius).setStartAngle(70).setEndAngle(-70).attachTo(leftCenterButton).build();

	}

	// @Override
	// public boolean onCreateOptionsMenu(Menu menu) {
	// // Inflate the menu; this adds items to the action bar if it is present.
	// getMenuInflater().inflate(R.menu.menu_with_fab, menu);
	// return true;
	// }
	//
	// @Override
	// public boolean onOptionsItemSelected(MenuItem item) {
	// // Handle action bar item clicks here. The action bar will
	// // automatically handle clicks on the Home/Up button, so long
	// // as you specify a parent activity in AndroidManifest.xml.
	// int id = item.getItemId();
	// if (id == R.id.action_settings) {
	// return true;
	// }
	// return super.onOptionsItemSelected(item);
	// }
}

其中用到的定义的尺寸在该项目的库文件及demo中代码文件中已经定义。

附录相关文章：
【1】《Android第三方开源FloatingActionButton（com.getbase.floatingactionbutton）【1】》链接地址：http://blog.csdn.net/zhangphil/article/details/50166715
【2】《Android第三方开源FloatingActionButton（com.getbase.floatingactionbutton）【2】》链接地址：http://blog.csdn.net/zhangphil/article/details/50166929
【3】《Android第三方开源FloatingActionButton（com.getbase.floatingactionbutton）: FloatingActionsMenu【3】》链接地址：http://blog.csdn.net/zhangphil/article/details/50167609
【4】《Android FloatingActionButton: FloatingActionsMenu向下伸展弹出及删除包含的FloatingActionButton【4】》链接地址：http://blog.csdn.net/zhangphil/article/details/50182019
【5】《Android Material Design的FloatingActionButton，Snackbar和CoordinatorLayout》链接地址：http://blog.csdn.net/zhangphil/article/details/48861371
【6】《Android第三方FloatingActionButton：伴随ListView、RecyclerView、ScrollView滚动滑入滑出》链接地址：http://blog.csdn.net/zhangphil/article/details/50135707