different android launchers

There is a requirement in the Android project to draw a few linearlayout layouts into the ListView style, as shown in:When you click each linearlayout item to change its background color, the following background image XML file is prepared:XML version= "1.0" encoding= "Utf-8"?>selectorxmlns:android= "Http://schemas.android.com/apk/res/android"> Itemandroid:drawable= "@color/gray_background"android:state_

stored in the resources directory because it cannot be written on the ipad.So what should you do with the read and write XML on the ipad? The method is described as follows:Store the files that need to be serialized in the Application.persistentdatapath directory, which is a platform-dependent path.Write:XmlDocument xmldoc = new XmlDocument ();...Xmldoc.save (application.persistentdatapath+ "//abc.xml");Read:XmlDocument xmldoc = new XmlDocument ();Xmldoc.load (application.persistentdatapath+ "/

Recently in the circle of friends "looking for the name of the house" and "miles seek knife" such small games than the fire. I tried to write a version of Android, which is full of a series of shape near the word, the implementation of the principle is very easy: with a GridView and then every item into a square can be, click on the correct item to change the number of rows and columns of the GridView can be.First, the game description:Find the differ

All image settings in Android ViewPager listen to different images displayed in the same activity, See the previous article for monitoring all image settings in Android ViewPager. In order to save time, the two-layer menu only displays the corresponding image activity after clicking any image. The key point is how to pass parameters to the displayed activity for

In real-world applications, you need to display a string with a different color and font. Of course, it can be stitched together by different textview. Can also be shown through a textview.The steps are as follows:1. Define different style.You might want to define 2 style as follows 　　2. Format the string with spannablestring. The code is as follows:Mtextv

Implementation Code Adapter code Viewholder has three different la s, that is, the layout of each item in listview. Type_1... is three types. When different la s are used, getitemviewtype and getviewtype should not be small. Generally, they do not need to be overloaded by these two functions. Class runrankadapter extends baseadapter {arraylist Usage: Declare and define your own adapter, and set its adapt

Set text of different styles in the same TextView of Android Requirement Analysis: Most of the time, we need to display text of different styles in the view, but in order to reduce the viewgroup level, we do not want to add many TextView controls to implement text of different styles. Is there a way to implement multip

a previous project requires an effect: For a listactivity, the menus popped up by different items are different. As shown in, we need to bring up menus with different titles by pressing different items: For A Long press event, you can use the setonitemlongclick function of listview to associate the event. However, the

Android uses two attributes to classify the screen of a device: size and density. You should imagine the device screen size and density range for installing your app. For example, you should include some optional resources to optimize the display appearance of your applications on screens of different sizes and density. 1. four general dimensions: small, normal, large, xlarge 2. four General density types:

of course I'm using 1.7.*************************************************************************************************************SDK (software Development (development) kit (kit refers to a lot of small pieces of a small piece of something similar to a medicine box is called kit, this refers to the tool bag))Java has SDK (that is, JDK), Android also has SDK (such as. 9.png tools, etc.)JDK (Java development Kit)JDK is the SDK for the Java language

Android Message and obtainMessage are different. androidobtainA few days ago, I needed to implement an Ethernet function and read the source code of Ethernet. When I saw the source code in message processing, I found some differences: When I am processing messages: 1. Create a Handler object: private Handler handler = new Handler () {public void handleMessage (Message msg) {switch (msg. what) {case 0: break

This article translated from: http://developer.android.com/training/basics/supporting-devices/screens.html Android uses two attributes to classify the screen of a device: size and density. You should imagine the device screen size and density range for installing your app. For example, you should include some optional resources to optimize the display appearance of your applications on screens of different

============ Problem Description ============Take a look at the pictureHowever, on the Xiaomi or Huawei phone, the date control shows 201 April-September-03, the month column more than a "month" word, this feeling very uncomfortable:Ask: The above question, is the handset compatibility question, or the control itself parameter questionWhat should be done to ensure that different phones show the same?============ Solution 1============is not related to

As we all know, the data in the ListView is adapter adapted to the screen, so to implement the contents of each item in the ListView needs to manipulate the code in the adapter:We will refactor the following two methods when using different layouts: Getitemviewtype and Getviewtypecount.public class Myadapter extends Baseadapter {arraylistCreate a different viewholder by calling the type returned to determin

Today, someone asked me, Android system different resolution, different size of the phone, font size how to adapt it? In fact, the adaptation of the font and picture adaptation is a truth.OneThe principle is as follows:Suppose you need to adapt to 320x240,480x320 resolution. Create a new folder under the Res directory values-320x240, values-480x320. Then in the f

Automatically generate images at different Android resolutions It is troublesome to process the icons for Android screen resolution adaptation, which makes it a waste of time to make images of different sizes on the UI and is prone to errors. Therefore, I wrote a tool in Python to automate image processing, the UI only

: Myproject/ Res/ Values/ Strings. xml Values-ES/ Strings. xml Values-fr/ Strings. xml Add the string values of each language to the corresponding file. At runtime, the android system uses the corresponding string resources based on the current language settings of the User device. For example, the following is a string resource file in different languages. English (default language encoding),/values/string

There are a lot of nice examples in the Android API demos, and the code for these examples is pretty good, so if you're working through every single example in the API demos, congratulations on being a real Android player. It's also a way for some of the more confused Android developers to point out an ability to improve themselves. There are many examples in API

After 4.0, a new Android project will automatically generate drawable,drawalbe-ldpi,drawable-mdpi,drawable-hdpi,drawable-xhdpi,drawable-xxhdpi six folders, In addition to Drawable, the other 5 folders correspond to four levels of Density:120dip (low), 160dip (Medium), 240dip (High), 320dip (Xhigh), 480dip (drawable-xxhdpi). The current mainstream approach is to put the picture file in the Drawable-hdpi folder, and the image-related XML file (such as b

()/6);Canvas.concat (m);Canvas.drawbitmap (Mbmp,0,0,null);Super.ondraw (canvas);Canvas.restore ();Represents a matrix change that removes Polytopoly. Just shows the picture display of the clipping area.The source code of the five sequence diagram is:Mbmp=bitmapfactory.decoderesource (Getresources (), R.DRAWABLE.GUIDE_PAGE01);Canvas.save ();float src[]={0,0,getwidth (), 0,getwidth (), GetHeight (), 0,getheight ()};float sou[]={0,0, (float) (getwidth ()), (float) (+), (float) (getwidth ()), (floa