Detailed explanation of Android listview adapter optimization method

For the optimization of Android listview, the listview interface and data display are used in Android projects. At this time, if the resources are too large, the user experience of the project must be bad. Here is a detailed introduction to how to optimize:

The function of the adapter is to bridge the listview interface and data. When each item in the list is displayed on the page, it will call the getview method of the adapter to return a view. Have you thought about it? What would it look like if our list had 1000000 items? Will it occupy a lot of system resources?

The function of listview adapter is shown in the following figure:

First look at the following code:

What about? If there are more than 1000000 items, the consequences will be unimaginable! Don't write that!

Let's look at the following code:

How about the above code? Is it much better? The system will reduce the number of views created. Performance has been greatly improved.

Is there any optimization method? The answer is yes:

What about? Will it bring great improvement to your system? Take a look at the performance comparison chart of the following three methods, and you will know!

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