幽默笑话大全 爆笑视频,哑小鱼,禁忌恋肉文
最近试着做了个android 带有弹出收缩动画的扇形菜单，留个笔记记录一下。
效果如下
我要评论
public class mainactivity extends appcompatactivity implements view.onclicklistener {
private imageview imgpublish;
private textview textview1;
private textview textview2;
private boolean ismenuopen = false;
private list<textview> textviews = new arraylist<>();
@override
protected void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);
imgpublish = (imageview) findviewbyid(r.id.img_publish);
textview1 = (textview) findviewbyid(r.id.tv_1);
textview2 = (textview) findviewbyid(r.id.tv_2);
textviews.add(textview1);
textviews.add(textview2);
imgpublish.setonclicklistener(this);
}
@override
public void onclick(view v) {
switch (v.getid()) {
case r.id.img_publish:
if (!ismenuopen) {
showopenanim(80);
imgpublish.setimageresource(r.mipmap.publish_select);
}else {
showcloseanim(80);
imgpublish.setimageresource(r.mipmap.fabu);
}
break;
}
}
//打开扇形菜单的属性动画， dp为半径长度
private void showopenanim(int dp) {
textview1.setvisibility(view.visible);
textview2.setvisibility(view.visible);
//for循环来开始小图标的出现动画
for (int i = 0; i < textviews.size(); i++) {
animatorset set = new animatorset();
//标题1与x轴负方向角度为20°，标题2为100°，转换为弧度
double a = -math.cos(20 * math.pi / 180 * (i * 2 + 1));
double b = -math.sin(20 * math.pi / 180 * (i * 2 + 1));
double x = a * dip2px(dp);
double y = b * dip2px(dp);
set.playtogether(
objectanimator.offloat(textviews.get(i), "translationx", (float) (x * 0.25), (float) x),
objectanimator.offloat(textviews.get(i), "translationy", (float) (y * 0.25), (float) y)
, objectanimator.offloat(textviews.get(i), "alpha", 0, 1).setduration(2000)
);
set.setinterpolator(new bounceinterpolator());
set.setduration(500).setstartdelay(100);
set.start();
set.addlistener(new animator.animatorlistener() {
@override
public void onanimationstart(animator animation) {
}
@override
public void onanimationend(animator animation) {
//菜单状态置打开
ismenuopen = true;
}
@override
public void onanimationcancel(animator animation) {
}
@override
public void onanimationrepeat(animator animation) {
}
});
}
//转动加号大图标本身45°
objectanimator rotate = objectanimator.offloat(imgpublish, "rotation", 0, 90).setduration(300);
rotate.setinterpolator(new bounceinterpolator());
rotate.start();
}
//关闭扇形菜单的属性动画，参数与打开时相反
private void showcloseanim(int dp) {
//for循环来开始小图标的出现动画
for (int i = 0; i < textviews.size(); i++) {
animatorset set = new animatorset();
double a = -math.cos(20 * math.pi / 180 * (i * 2 + 1));
double b = -math.sin(20 * math.pi / 180 * (i * 2 + 1));
double x = a * dip2px(dp);
double y = b * dip2px(dp);
set.playtogether(
objectanimator.offloat(textviews.get(i), "translationx", (float) x, (float) (x * 0.25)),
objectanimator.offloat(textviews.get(i), "translationy", (float) y, (float) (y * 0.25)),
objectanimator.offloat(textviews.get(i), "alpha", 1, 0).setduration(2000)
);
// set.setinterpolator(new accelerateinterpolator());
set.setduration(500);
set.start();
set.addlistener(new animator.animatorlistener() {
@override
public void onanimationstart(animator animation) {
}
@override
public void onanimationend(animator animation) {
textview1.setvisibility(view.gone);
textview2.setvisibility(view.gone);
//菜单状态置关闭
ismenuopen = false;
}
@override
public void onanimationcancel(animator animation) {
}
@override
public void onanimationrepeat(animator animation) {
}
});
}
//转动加号大图标本身45°
objectanimator rotate = objectanimator.offloat(imgpublish, "rotation", 0, 90).setduration(300);
rotate.setinterpolator(new bounceinterpolator());
rotate.start();
}
private int dip2px(int value) {
float density = getresources()
.getdisplaymetrics().density;
return (int) (density * value + 0.5f);
}
}
布局文件
<?xml version="1.0" encoding="utf-8"?>
<framelayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.lina.animationapplication.mainactivity">
<textview
android:id="@+id/tv_1"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_gravity="bottom|end"
android:layout_marginbottom="40dp"
android:layout_marginright="40dp"
android:gravity="center"
android:text="标题1"
android:textcolor="#ffffff"
android:visibility="gone"
android:background="@drawable/circle_purple"
/>
<textview
android:id="@+id/tv_2"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_gravity="bottom|end"
android:layout_marginbottom="40dp"
android:layout_marginright="40dp"
android:gravity="center"
android:text="标题2"
android:textcolor="#ffffff"
android:visibility="gone"
android:background="@drawable/circle_orange"/>
<imageview
android:id="@+id/img_publish"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_gravity="bottom|end"
android:layout_marginbottom="35dp"
android:layout_marginright="35dp"
android:src="@mipmap/fabu"
/>
</framelayout>
circle_purple.xml
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval"> <solid android:color="#5d2a89" /> </shape>
参考
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
如对本文有疑问，请在下面进行留言讨论，广大热心网友会与你互动！！ 点击进行留言回复
Android Manifest中meta-data扩展元素数据的配置与获取方式
Android实现获取meta-data和build.gradle的值
Android获取清单文件中的meta-data,解决碰到数值为null的问题
解决webview 第二次调用loadUrl页面不刷新的问题
解决Android WebView拦截url,视频播放加载失败的问题
Android webview加载https链接错误或无响应的解决
网友评论