Android ListView cannot display content

1. Adapter call Flush interface has no effect:

Print the adapter GetView method, print the adapter GetCount () method, and print out the ToString () field of the data source.

When comparing the initial creation, you have to analyze whether there is no data, whether the data source reference has changed (GetCount () or the GetView () method does not execute);

2. The ListView cannot display the content:

The first thing to detect is whether your adapter data source really has a data source (detect GetCount () and GetView () method);

　　　　　　The second is to detect whether your ListView reference and adapter reference has changed (in many cases, this is confusing, if the reference address of adapter has changed, the data source binding fails, how to refresh the results);

Android ListView cannot display content