picasso

Picasso: How to check if singleton is already set

允我心安 提交于 2020-07-09 07:41:11
问题 I am using Picasso for handling image loading in my app. In my Activity I do @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.loading_screen); setupPicasso(); // ... } private void setupPicasso() { Cache diskCache = new Cache(getDir(CacheConstants.DISK_CACHE_DIRECTORY, Context.MODE_PRIVATE), CacheConstants.DISK_CACHE_SIZE); OkHttpClient okHttpClient = new OkHttpClient(); okHttpClient.setCache(diskCache); Picasso picasso

How to integrate Google Drive with Picasso on Android?

匆匆过客 提交于 2020-07-05 03:32:13
问题 I'm writing an app which stores images in Google Drive and I'd like to display a gallery of those ( GridView ). To be more performant (i.e. async) I'd like to integrate this with Picasso . But the Picasso.load(String) is just an alias to load(Uri.parse(path)) , and I don't have a Uri because the images are loaded like this (simplified and with undisclosed utility methods): public static Bitmap getBitmap(DriveId id) { GoogleApiClient client = ApiClientAsyncTask.createConnectedClient(App

How to integrate Google Drive with Picasso on Android?

二次信任 提交于 2020-07-05 03:32:11
问题 I'm writing an app which stores images in Google Drive and I'd like to display a gallery of those ( GridView ). To be more performant (i.e. async) I'd like to integrate this with Picasso . But the Picasso.load(String) is just an alias to load(Uri.parse(path)) , and I don't have a Uri because the images are loaded like this (simplified and with undisclosed utility methods): public static Bitmap getBitmap(DriveId id) { GoogleApiClient client = ApiClientAsyncTask.createConnectedClient(App

android get Drawable image after picasso loaded

我怕爱的太早我们不能终老 提交于 2020-06-24 08:19:20
问题 I am using Picasso library to load image from url. The code I used is below. Picasso.with(getContext()).load(url).placeholder(R.drawable.placeholder) .error(R.drawable.placeholder).into(imageView); What I wanna do is to get the image that loaded from url. I used Drawable image = imageView.getDrawable(); However, this will always return placeholder image instead of the image load from url. Do you guys have any idea? How should I access the drawable image that it's just loaded from url. Thanks

性能优化组合拳

末鹿安然 提交于 2020-05-08 19:08:31
一、卡顿优化 启动卡顿优化 现象:启动慢,启动白屏,启动黑屏 1、不要在oncreate中做耗时操作 2、不要在application中做耗时操作 3、布局要浅,避免过度绘制,如果布局实在是复杂,用Constraintlayout 开发者选项中有调试GPU过度渲染工具。 颜色:蓝色<浅绿<浅红<深红 分别代表:绘制一次<绘制两次<绘制三次<绘制四次及以上 4、如果加载的实在是多,就分步加载,放到子线程,加载一部分回调一部分刷新主线程数据 白色主题耗时多久白屏,黑色主题耗时多久黑屏 运行时卡顿优化 1、耗时操作不要放在主线程 2、自定义控件ondraw中不要做耗时操作,1000ms / 60帧 = 16.6666... 如果16ms的时间没来得及绘制就掉帧,表现为卡顿 二、内存优化 传送门: https://blog.csdn.net/zhangzhuo1024/article/details/89599446 三、apk体积优化 1、冗余代码删除。随着项目功能修改,会有很多冗余的废代码,及时删除 2、冗余资源删除。没有用的图片,布局全部删除;androidstudio 文件夹右键->Refactor->Remove Unused Resource. 3、图片优化。传送门: https://blog.csdn.net/zhangzhuo1024/article/details

仿知乎列表广告栏:在RecyclerView中实现大图片完整展示的视差效果(优雅地插入全屏广告图)

白昼怎懂夜的黑 提交于 2020-04-15 10:45:16
【推荐阅读】微服务还能火多久?>>> github地址:https://github.com/giswangsj/RvParallaxImageView 欢迎star 一,前言 在xx地铁app(可在地铁上提供wifi)上看到过类似如下的效果: ​ 在recyclerview中,某一个item位置显示广告图片,广告图是可以填充屏幕的大图,recyclerview滚动时,图片的显示区域可以跟着滚动。这个功能完美解决了:在位置空间不足的情况下展示一张完整广告图的需求。 ​ 于是乎就有了 RvParallaxImageView . RvParallaxImageView 没有任何侵入性 ,默认提供了加载resource中的drawable、和加载本地磁盘上的图片两种方式。并且提供了灵活的扩展方式,可以利用自己项目中的图片加载库进行加载。 ​ 比如你使用 Glide 或 Picasso 网络加载框架加载网络图片,可以使用 GlideImageController / PicassoImageController 进行加载,请参看demo。 ​ 当然你也可以自定义Controller来使用其他图片加载框架进行加载。 ​ 总结: PicassoImageController 具有使用简单,扩展方便等特点。 二,使用 ​ 为了不对你的代码由任何侵入性,

仿知乎列表广告栏:在RecyclerView中实现大图片完整展示的视差效果(优雅地插入全屏广告图)

你离开我真会死。 提交于 2020-04-15 10:23:48
【推荐阅读】微服务还能火多久?>>> github地址:https://github.com/giswangsj/RvParallaxImageView 欢迎star 一,前言 在xx地铁app(可在地铁上提供wifi)上看到过类似如下的效果: ​ 在recyclerview中,某一个item位置显示广告图片,广告图是可以填充屏幕的大图,recyclerview滚动时,图片的显示区域可以跟着滚动。这个功能完美解决了:在位置空间不足的情况下展示一张完整广告图的需求。 ​ 于是乎就有了 RvParallaxImageView . RvParallaxImageView 没有任何侵入性 ,默认提供了加载resource中的drawable、和加载本地磁盘上的图片两种方式。并且提供了灵活的扩展方式,可以利用自己项目中的图片加载库进行加载。 ​ 比如你使用 Glide 或 Picasso 网络加载框架加载网络图片,可以使用 GlideImageController / PicassoImageController 进行加载,请参看demo。 ​ 当然你也可以自定义Controller来使用其他图片加载框架进行加载。 ​ 总结: PicassoImageController 具有使用简单,扩展方便等特点。 二,使用 ​ 为了不对你的代码由任何侵入性,

Using Glide to load an image from remote storage

不想你离开。 提交于 2020-03-26 02:22:31
问题 I am developing an android app that needs to load many images from a folder that is located on my online server (in this case a GoDaddy hosting shared-plan). All of the images are stored in an image folder inside the FileManager folder provided by GoDaddy. Glide needs a URL to load an image, but in my case these images are not public and can't be reached from a HTTP URL (and should remain that way). I would like to use glide to load these remotely stored images just like I am able to do so

picasso 之 LruCache

元气小坏坏 提交于 2020-03-06 18:30:19
Lru是一种页面置换算法,当进程访问的页面不在内存,而且内存已无空闲空间时,系统必须从内存中调出一页送到磁盘的对换区。 调出的这一页到底是哪页呢?Lru就是其中一种算法,称为“最近最久未使用算法”。 从构造方法开始, /** Create a cache using an appropriate portion of the available RAM as the maximum size. */ public LruCache(Context context) { this(Utils.calculateMemoryCacheSize(context)); } /** Create a cache with a given maximum size in bytes. */ public LruCache(int maxSize) { if (maxSize <= 0) { throw new IllegalArgumentException("Max size must be positive."); } this.maxSize = maxSize; this.map = new LinkedHashMap<String, Bitmap>(0, 0.75f, true); } 初始化了允许最大缓存大小,和LinkedHashMap 最重要的应该是get,set方法:

Android Firebase uploading images wrong URL (PROBLEM: X-Goog-Upload-Comment header is missing)

半腔热情 提交于 2020-03-03 07:28:09
问题 I'm trying to upload and download images from Firabase Database which has an URL link to Firebase Storage. The problem is that the strange URL is being saved to database (see the link at the bottom). What should I do to obtain a normal URL that I will be able to use do downloand the image into my Android app? Thank you in advance! Here I post some code I use: Upload to Firebase DataBase and Storage: mStorageRef = FirebaseStorage.getInstance().getReference(); mDataBaseRef = FirebaseDatabase