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This article introduces the "Android custom LinearLayout layout display incomplete how to solve" the relevant knowledge, in the actual case of the operation process, many people will encounter such a dilemma, then let the editor lead you to learn how to deal with these situations! I hope you can read it carefully and be able to achieve something!

Find a problem

The original requirements, in a scaling list, custom LinearLayout inherits the LinearLayout dynamic add layout.

However, when it is implemented, a total of 30 pieces of data are traversed, but only one is displayed.

Breakpoint view code: the process of traversing addView () is a normal 30 cycles. Is that a matter of layout?

It doesn't feel wrong. Try adding a layer of LinearLayout vertically, wrap_content and match_parent to the outer layer of the custom layout. It's all tried, but it still doesn't work.

Android-Custom View does not display

Description:

A custom LinearLayout is defined and cannot be displayed.

The reason is that there must be

Public ManDaoH5View (Context context, AttributeSet attrs) {

This method is a custom LinearLayout initialization method, and LinearLayout's own properties must also be written in this method, otherwise the properties will not work, for example: setOrientation (VERTICAL)

Code:

Public class ManDaoH5View extends LinearLayout {public ManDaoH5View (Context context, AttributeSet attrs) {/ / this method must be available, otherwise the custom LinearLayout will not display super (context, attrs); setOrientation (VERTICAL); / / horizontal layout (its layout attributes must be written here, which will not work elsewhere) / / initChild (context, url) / / do not add this line. If the layout is referenced elsewhere, this method will be run. If the webview is not connected, an error will occur}}.

There are two solutions!

One: add to the layout file. Custom LinearLayout is also Liearlayout, how can you forget its direction?

Two: add to the construction method:

If you are directly new, the custom View is added in the constructor of a parameter; if you refer to the custom view in xml, it is referenced in the constructor of the two parameters; the constructor of the three parameters forgets what the call is (o (╯□╰) o)

SetOrientation (VERTICAL)

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