Picasso开源图片加载利器使用初探
发布时间:2020-05-24 21:33:40 所属栏目:Java 来源:互联网
导读:Picasso开源图片加载利器使用初探
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下面是脚本之家 jb51.cc 通过网络收集整理的代码片段。 脚本之家小编现在分享给大家,也给大家做个参考。 Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView); Picasso.with(context).load(url).into(view); Picasso.with(context).load(url) .resize(50,50).centerCrop().into(imageView) //这里的placeholder将resource传入通过getResource.getDrawable取资源,所以可以是张图片也可以是color id Picasso.with(context).load(url).placeholder(R.drawable.user_placeholder).error(R.drawable.user_placeholder_error).into(imageView);Picasso.with(context).load(R.drawable.landing_screen).into(imageView1); Picasso.with(context).load("file:///android_asset/DvpvklR.png").into(imageView2); Picasso.with(context).load(new File(...)).into(imageView3); //这里显示notification的图片 Picasso.with(activity).load(Data.URLS[new Random().nextInt(Data.URLS.length)]).resizeDimen(R.dimen.notification_icon_width_height, R.dimen.notification_icon_width_height).into(remoteViews,R.id.photo,NOTIFICATION_ID,notification); //这里是通过设置tag标签,就是当前传过来的context,这样就可以根据这个context tag来pause和resume显示了 Picasso.with(context).load(url).placeholder(R.drawable.placeholder).error(R.drawable.error).fit().tag(context).into(view); //监听onScrollStateChanged的时候调用执行 picasso.resumeTag(context); picasso.pauseTag(context); Picasso.with(context).load(contactUri).placeholder(R.drawable.contact_picture_placeholder).tag(context).into(holder.icon); //这个onpause方法里的这段代码还是很有意思的 @Override protected void onPause() { super.onPause(); if (isFinishing()) { // Always cancel the request here,this is safe to call even if the image has been loaded. // This ensures that the anonymous callback we have does not prevent the activity from // being garbage collected. It also prevents our callback from getting invoked even after the // activity has finished. Picasso.with(this).cancelRequest(imageView); } } // Trigger the download of the URL asynchronously into the image view. Picasso.with(context) .load(url) .placeholder(R.drawable.placeholder) .error(R.drawable.error) .resizeDimen(R.dimen.list_detail_image_size,R.dimen.list_detail_image_size) .centerInside() .tag(context) .into(holder.image); //Picasso.with使用的是单例模式 Picasso.with(this).cancelTag(this); 以上是脚本之家(jb51.cc)为你收集整理的全部代码内容,希望文章能够帮你解决所遇到的程序开发问题。 如果觉得脚本之家网站内容还不错,欢迎将脚本之家网站推荐给程序员好友。 (编辑:安卓应用网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
