Recently in tinkering with Android custom control properties, I learned about Typedarray and attrs. In this one read a great God blog Android in-depth understanding of custom properties in Android. I will be more in-depth learning power. I will
Have always felt that the Popupwindow in Android is not good. The main two points are as follows:1, the width is not good control2, the position is not good controlToday is the 1th.Because the application has several kinds of national language, and
Recently, we have to change places to work, to tidy up the problems encountered before.
1. StatusBar View controller-based status bar appearanceafter the status bar property is set, Plist is modified before it is valid. 2. Auto layouthugging
In framework development, in order to adapt to the lowest system version, we need to be careful not to use the High version API. But in addition to personal attention, is it possible to be prompted by the system at compile time to exceed the
I. Definition of a methodCall Method:Syntax: Call (Thisobj,object)Definition: Invokes one method of an object, replacing the current object with another object.DescriptionThe call method can be used to invoke a method in place of another object. The
If certain methods are defined in a protocol, and a class implements the protocol, the class must implement these methods. In other words, the protocol is a common set of method declarations, who implement the Protocol, who is responsible for
The 1.framelayout:children is arranged in order from the top left, mainly for tabed view or picture switching, and the simplest layout model in which each added child control is placed in the upper-left corner of the layout and overrides the top of
First, I put the entity class of personPackage net.loonggg.test; public class Person {private int id; Private String age; private String name; Private String sex; Private String address; public int getId () {return id;
Imageview.scaletype.center|android:scaletype= "Center" is based on the geometric center point of the original image and the geometric center point of the Imagview, centered on the original size of the picture, not scaled, when the picture is long/
App start-up process
All the apps are started by launcher.
Launcher itself is an app, a system-level app, placed under asystem/app/, using a system signature.
To analyze the codeYou can see that the launcher class is actually an
1. Add a navigation bar to each sub-controller/*** Initialize a sub-controller** @param child controller that needs to be initialized* @param title* @param imageName icon not selected* @param selectedimagename the selected icon*/-(void)
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