Android抛物线下载动画制作过程
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2024-02-27 18:34:51
下载动画经常出现在下载需求多的app中,比如游戏下载平台,应用市场……
先看看效果图:
实现
private void startanim() {...
下载动画经常出现在下载需求多的app中,比如游戏下载平台,应用市场……
先看看效果图:
实现
private void startanim() { //以bitmap创建new imageview iv.setdrawingcacheenabled(true); bitmap bitmap = iv.getdrawingcache(); imageview logo = new imageview(this); logo.setscaletype(imageview.scaletype.fit_xy); logo.setimagebitmap(bitmap); int[] startlocation = new int[2]; iv.getlocationinwindow(startlocation); end.getlocationinwindow(location_download); setanim(logo, startlocation, location_download); }
设置动画
private void setanim(final imageview logo, int[] startlocation,int[] location_download) { viewgroup animmasklayout = createanimlayout(); animmasklayout.addview(logo);// 把动画小球添加到动画层 // 计算位移 final view view = addviewtoanimlayout(logo, startlocation); // 动画位移的x坐标 int endy = location_download[1] - startlocation[1]; // 动画位移的y坐标 translateanimation translateanimationx = new translateanimation(0, endx, 0, 0); translateanimationx.setinterpolator(new linearinterpolator()); translateanimationx.setrepeatcount(0);// 动画重复执行的次数 translateanimationx.setfillafter(true); translateanimation translateanimationy = new translateanimation(0, 0, 0, endy); translateanimationy.setinterpolator(new accelerateinterpolator()); translateanimationy.setrepeatcount(0);// 动画重复执行的次数 translateanimationx.setfillafter(true); animationset set = new animationset(false); set.setfillafter(false); set.addanimation(translateanimationy); set.addanimation(translateanimationx); set.setduration(2000);// 动画的执行时间 view.startanimation(set); // 动画监听事件 set.setanimationlistener(new animation.animationlistener() { // 动画的开始 @override public void onanimationstart(animation animation) { logo.setvisibility(view.visible); } @override public void onanimationrepeat(animation animation) { } // 动画的结束 @override public void onanimationend(animation animation) { logo.setvisibility(view.gone); } }); }
创建动画父布局
private viewgroup createanimlayout() { viewgroup rootview = (viewgroup) getwindow().getdecorview(); linearlayout animlayout = new linearlayout(this); linearlayout.layoutparams lp = new linearlayout.layoutparams( linearlayout.layoutparams.match_parent, linearlayout.layoutparams.match_parent); animlayout.setlayoutparams(lp); animlayout.setid(integer.max_value); animlayout.setbackgroundresource(android.r.color.transparent); rootview.addview(animlayout); return animlayout; }
设置动画布局参数
private static view addviewtoanimlayout(final view view, int[] location) { int x = location[0]; int y = location[1]; linearlayout.layoutparams lp = new linearlayout.layoutparams(80, 80); lp.leftmargin = x; lp.topmargin = y; view.setlayoutparams(lp); return view; }
代码就到此结束了,看起来并不难,动手试试吧。
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。