picasso

From the UX point of view, it will be great to show the user a thumbnail first until the real image completes loading, then showing it to him, but Picasso uses only a resource file as the place holder like: Picasso.with(context) .load(url) .placeholder(R.drawable.user_placeholder) .into(imageView); So, how can I use a thumbnail URL as the placeholder? , and if I should use Picasso twice, then how? An issue is already opened on Picasso's github page with this request, but seems it won't be added to Picasso as per JakeWharton. So how could we do it with what's available in hand? Thanks to raveN

https://www.jianshu.com/p/519bb23987ca 看完此文章 你就会学到什么... RecyclerView添加头部，尾部，或list列表中某位置添加view RecyclerView+SwipeRefreshLayout 实现上下拉刷新效果 分页加载数据 列表优化方案 利用Glide加载图片，滑动的时候按back键，App会crash蹦掉处理。 添加依赖 //recyclerview compile 'com.android.support:recyclerview-v7:25.1.1' //glide compile 'com.github.bumptech.glide:glide:3.7.0' //butterknife 注意需要在三个第三添加代码 //1 module gradle里面底部添加 compile 'com.jakewharton:butterknife:8.5.1' annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1' //2 module gradle 里面顶部添加 apply plugin: 'com.jakewharton.butterknife' //3 在project gradle里面添加 dependencies { classpath

https://www.jianshu.com/p/519bb23987ca 看完此文章 你就会学到什么... RecyclerView添加头部，尾部，或list列表中某位置添加view RecyclerView+SwipeRefreshLayout 实现上下拉刷新效果 分页加载数据 列表优化方案 利用Glide加载图片，滑动的时候按back键，App会crash蹦掉处理。 添加依赖 //recyclerview compile 'com.android.support:recyclerview-v7:25.1.1' //glide compile 'com.github.bumptech.glide:glide:3.7.0' //butterknife 注意需要在三个第三添加代码 //1 module gradle里面底部添加 compile 'com.jakewharton:butterknife:8.5.1' annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1' //2 module gradle 里面顶部添加 apply plugin: 'com.jakewharton.butterknife' //3 在project gradle里面添加 dependencies { classpath

I'm trying to do a shared element transition between two activities. The first activity has a circle imageview and the second activity has a rectangular imageview. I just want the circle to transition from the first activity to the second activity where it becomes a square and back to the circle when I press back. I find that the transition is not so neat - in the animation below, you can see that the rectangular imageview seem to reduce in size until it matches the size of the circle. The square imageview appears for a split second and and then the circle appears. I want to get rid of the

In my project I want to load url Images and display them in gridview activity. but how to load those image to the gridview adapter? so I am trying to understand the concept of grid/list view adapter and as I understand .in a basic example ,it contain 3 activities: 1-Main activity Useally it contains the definition of gridview layout , the definition of the method GridViewAdapter (third activity) ,setting the adapter in the grid view. and the data or the array image(second activity) that to be send in the GridViewAdapter method. protected void onCreate(Bundle savedInstanceState) { super