Lazy Car Android: A Free App for Automated and Hands-Free Phone Use

This method will work. However, there is a case in which it will bug the app. If this is a fragment, and the fragment goes to the backstack, onCreateView will be called again, and the view hierarchy of the fragment will recreated. Which means, the lazy initiated recyclerView will point out to an old view no longer existent.

Lazy Car Android

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My question is, is there any way to reset lazy properties so they can be initialised again? I like the fact initialisations are all done at the top of a class, helps to keep the code organised. The specific problem is found in this question: kotlin android fragment empty recycler view after back

Here is a quick version of a resettable lazy, it could be more elegant and needs double checked for thread safety, but this is basically the idea. You need something to manage (keep track) of the lazy delegates so you can call for reset, and then things that can be managed and reset. This wraps lazy() in these management classes.

Lazy loading (also called on-demand loading) is an optimization technique for the online content, be it a website or a web app.Instead of loading the entire web page and rendering it to the user in one go as in bulk loading, the concept of lazy loading assists in loading only the required section and delays the remaining, until it is needed by the user.

For example, say a user requests for the logo of GeeksForGeeks from a search engine. The entire web page, populated with the requested content, is loaded. Now if the user opens the first image and is satisfied with it, he will probably close the web page thus, rest of the images so loaded will be left unseen. This will result in the wastage of the resources so consumed in the bulk load of that page. Thus the solution to this is Lazy Loading.One form of lazy loading is infinity scroll, in which, the content of the web page is loaded as and when the user scrolls down the page. It is a popular technique being used by various websites.

Conclusion: Though there are certain pitfalls of lazy loading yet the big advantages, as optimal utilization of the two major resources (time & space) and many more make us overlook its disadvantages.

Although the creation of lists using the standard compose Row and Column layout composables was covered in the previous chapter, in most situations you will be more likely to make use of the LazyColumn and LazyRow components. Not only do these provide a more efficient way to display long lists of items, but the lazy composables also include additional features such as sticky headers and responding to changes in scroll position.

Enter LazyListDemo into the Name field and specify com.example.lazylistdemo as the package name. Before clicking on the Finish button, change the Minimum API level setting to API 26: Android 8.0 (Oreo). Within the MainActivity.kt file, delete the Greeting function and add a new empty composable named MainScreen:

Although we now have a running example of a Compose lazy list, the project created so far does not yet take advantage of other features of the Compose lazy list components such as sticky headers and scroll position detection. The next chapter, entitled Jetpack Compose Sticky Headers and Scroll Detection, will extend the LazyListDemo project to add these features.

In computer programming, lazy initialization is the tactic of delaying the creation of an object, the calculation of a value, or some other expensive process until the first time it is needed. It is a kind of lazy evaluation that refers specifically to the instantiation of objects or other resources.

In the field of theoretical computer science, lazy initialization[3] (also called a lazy array) is a technique to design data structures that can work with memory that does not need to be initialized. Specifically, assume that we have access to a table T of n uninitialized memory cells (numbered from 1 to n), and want to assign m cells of this array, e.g., we want to assign T[ki] := vi for pairs (k1, v1), ..., (km, vm) with all ki being different. The lazy initialization technique allows us to do this in just O(m) operations, rather than spending O(m+n) operations to first initialize all array cells. The technique is simply to allocate a table V storing the pairs (ki, vi) in some arbitrary order, and to write for each i in the cell T[ki] the position in V where key ki is stored, leaving the other cells of T uninitialized. This can be used to handle queries in the following fashion: when we look up cell T[k] for some k, we can check if k is in the range 1, ..., m: if it is not, then T[k] is uninitialized. Otherwise, we check V[T[k]], and verify that the first component of this pair is equal to k. If it is not, then T[k] is uninitialized (and just happened by accident to fall in the range 1, ..., m). Otherwise, we know that T[k] is indeed one of the initialized cells, and the corresponding value is the second component of the pair.

When it comes to wireless charging, TYLT is generally the first name that comes to my mind, as the VU has been my primary charger for Qi-enabled devices since...well, for a long time. I prefer the stand-like design of the VU over that of chargers that lie flat, as it just makes it easier to look over and see my phone without having to actually pick it up (does that make me lazy?).When I saw the new F300 Wireless Charger from Spigen ($50, $27 on Amazon) - which shares a lot of the same design elements that I love about the VU - I knew I had to check it out. I've generally been impressed with pretty much every Spigen product I've used, so I had high expectations for the company's first wireless charger.To put it simply, I haven't been disappointed. In fact, it may be time to retire my old VU.

We set off from New York with our easily bored 3-year-old daughter strapped in the back seat. I fired up the phones and set courses for my parents' home in Haslett, Mich. (just outside Lansing, for those too lazy to Google it). 2ff7e9595c