oncreate method

What did the Android app silently do when it started the activity and called the OnCreate () method?  There are two sentences in the element in the Androidmanifest.xml file:When a well-written app is posted to the phone, when you double-click the

I. Getting started with Android-about the onCreate method under Activity, androidoncreate Original article: http://www.2cto.com/kf/201112/113331.html The element in the AndroidManifest. xml file contains the following two sentences:     Do you

Today in the database upgrade, encountered a problem, is the OnCreate method and the implementation of the Onupgrade method of the timing of the problem, this time in operation, did not find out, is confused, so write code when there are a lot of

Original: http://blog.csdn.net/jiangwei0910410003/article/details/46536329Today in the database upgrade, encountered a problem, is the OnCreate method and the implementation of the Onupgrade method of the timing of the problem, this time in

OnCreate () Method of Android developmentThe OnCreate () method is one of the most common methods of Android applications, so what should we pay attention to when using the OnCreate () method?First look at Google Android developers online

Explanation of onCreate () method for android development, androidoncreate Here we only pay attention to one sentence: This is where you should do all of your normal static set up. We only focus on normal static,Normal: General, General, and general.

1. Summary:Many modules in the android source code use the post () method. It is important to thoroughly understand the framework's previous running mechanism to avoid small traps similar to the one in this example. question: If you develop features

The OnCreate () method is one of the most common methods in the Android application, so what should we pay attention to when using the OnCreate () method? First look at the Google Android developers online explanation: OnCreate (Bundle) is where

Problem: If pad is flat on the table and there is no operation, the activity will repeatedly go to The onDestroy onCreate method. Android: configChanges = "keyboardHidden | orientation" is added with this attribute. All right, but I have not

Why is the width and height of the View 0 in the OnCreate () method of the Activity?@Overrideprotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_my_view); myview =

The OnCreate () method is one of the most common methods of Android applications, so what should we pay attention to when using the OnCreate () method?First look at Google Android developers online explanation:onCreate(Bundle)is where you initialize

You can get the width and height of the view through the view's GetWidth () and GetHeight ().However, what might disappoint you is that if you call these two functions directly within the OnCreate method, you will get to 0.Why is it?This is because,

In android, press the back key to return the previous activity. How can I re-call the oncreate method of the previous activity? It is not called by default. @ Override public void onBackPressed () {String titleStr = edittitle. getText (). toString

The activity contains a method named oncreate. This method is called by the system when the activity is created. It is the beginning of the lifecycle of an activity. However, it is easy to ignore that the parameter saveinsancestate of the oncreate

In the OnCreate () method, if you want to get the width height of the control, use the following method.Ordertime.post (New Runnable () { @Override public void Run () { System.out.println ("High" +

First, prefaceIn some cases, we need to show popupwindow when we enter activity, such as a common selection interface. However, because Popupwindow is dependent on activity, if the activity has not been created, the activity has not been fully

Problems encountered in programming: When creating a small music player, you want to automatically change the layout when switching between the horizontal and vertical screens. Landscape screen: Portrait screen: VcD4KPHA + pgltzybzcm9

I followed the tutorial, created a new activity through the wizard, and when I ran the OnCreate method called the Findviewbyid () method times the wrong nullpointerexception.Layout XML (fragment_main.xml):Xmlns:tools=

Obtain the width and height of a view in the oncreate method. Blog type: Android Sometimes you need to know the width and height of a view component in the oncreate method, and directly call the getwidth (), getheight (), getmeasuredwidth (),

Should know: Android activity refined out OnCreate, OnStart, Onresume, OnPause, OnStop, Ondesdroy 6 ways to let the application to overload, which asked why? Click to view Android activity why refine the OnCreate, OnStart, Onresume?This shows only