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How to get started with Android Studio
Although Google has long said that we want to use android studio for eclipse say bye
But after I tried the download, I gave up. Why?
Which package will be downloaded as soon as it is started? why? Because there is a wall in tianchao
Then I found an open-source project on GitHub today, which contains what I want. However, th
Configuring the BAIDUMAP Environment
1. In the Baidu API to create a new one of their app package name and app name to be aware of their Android Studio and the package name and app name consistent;
2. Baidu map also needs to fill in a SHA1 digital signature:
A, input keytool-list-v-keystore Debug.keystore, you will get three fingerprint certificates, select the SHA1 type of certificate (the key password
="android.permission.INTERNET" /> uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />3, in the activity of the application3.1 Instantiation of Imageloader protected ImageLoader imageLoader = ImageLoader.getInstance();3.2 Configuring option options = new DisplayImageOptions.Builder() .showImageOnLoading(R.drawable.dog)//加载图片时显示的默认图片 .showImageForEmptyUri(R.drawable.girl)//访问地址无内容时显示的图片 .showImageOnFail(R.drawable.luobo)//加载失败时显示的图片
In Android, sometimes we don't need to use the local SQLite database to provide data, more often from the network to get data, then how does Android get data from the server? There are many kinds of
One: Obtain data method based on HTTP protocol. Two: Data acquisition method based on SAOP protocol, three: forget------
of the transformation, the following to demonstrate the results of the changes, we need an apk to do the test, we randomly get an apk, because here do not want to write a project script, Then replace the system's Proguard.jar tool with our modified Proguard.jar. So just get the Classes.dex file in the APK and convert it to a Classes.jar file. Then put it directly into the Proguard project to run .Iv. runni
Before using some network to find the class for network access, and later found that the Android development has a Chinese class library xutils more comprehensive, but also more classic, so the subsequent use of Xutils class library to record.In this case, WCF is used by the server to write the WCF service side in: http://www.cnblogs.com/madyina/p/3454741.html Download deploymentThe service description is as follows:All 4 public methods return a user
A few days ago write code encountered a place need to get latitude and longitude, do not need Baidu map, because as long as the current location of the latitude and longitude on the line, the Android API has a built-in method, here to write, the following code we can take to use, here simple to, just copy into their own code, Then call the Showlocation () method
Get the width and height of the loaded layout during Android initialization (continued)-RelativeLayout trap
Next, the last question has been introduced. In the initialization or OnCreate method, get the width and height of the loaded layout. Finally, call view. measure (0, 0); then call getMeasuredWidth and getMeasuredHeight to obtain the measurement width and h
("SELECT * from users where name =?") and password =? ", new String[]{username,userpassword}); the cursor in this sentence corresponds to a resultset in SQL Server.There is no graphical interface is a bit more troublesome, is not good operation to view the data table, it is necessary to perform a CMD view, relatively troublesome. Take a look at the next blog post: http://blog.csdn.net/frightingforambition/article/details/24439981Full Demo:http://download.csdn.net/detail/u011250851/7248227
Print call stack Needless to say, basically every developer will use, discuss a few methods, previously said, http://blog.csdn.net/freshui/article/details/9456889 again simple tidy up, wordy on the long-winded:)Basically divided into two categories, one is static, to insert the printed statement into the code, a class is dynamic, need to look at the time to see, real-time observation of the thread call stack situation. Static methods1. Print the call stack in JavaRelatively simple, using Throwab
); Intent.putextra ("Return-data",true); Startactivityforresult (Intent, head_image_zoom); }}The above code gets the return value of the process, using three methods, the detailed implementation of the time is only one way to do. The third way is recommended.It is worth mentioning that. This small project needs to add a privilege value to the configuration file:uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>Error without this permission!This small project is use
); }}One place to note is that the MyApp class has to be registered in the Androidmanifest file.Step two: Next we will be able to put the picture of the ListView related content to write goodFirst, the contents of the Activity_main.xml file xmlns:app= "Http://schemas.android.com/apk/res-auto" Xmlns:tools= "Http://schemas.android.com/tools" Android:layout_width= "Match_parent" android:layout_height= "Match_parent" android:orientation
In other words, today and the server developers a little tease, why?Say today there is a "collection of products" request interface, is GET request of the Oh, my client to write the interface, click on the "Favorite button", Return to " collection success ", I ordered a bit, is actually still " collection success ", I again point, this next to, Return to Me "Cancel collection success", OK, I ordered a bit, thoroughly depressed, incredibly again "to ca
Android: Get the object size in onCreate ()In onCreate (), the View has not been drawn. Many times, we need to execute some code to operate the View when a page is just loaded, we usually place the code in the onCreate () method of Activity or the onCreateView () method of Fragment. However, because the View is not fully drawn when these Hook methods are called,
way. The third way is recommended.It is worth mentioning that the small project needs to add a permission value in the configuration file:uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>Error without this permission!This small project is very practical, most of the apps have access to the user's avatar, the user's avatar settings, so we can refer to, if there is anything wrong place, please actively message exchange, common p
passive method. To actively call it, we recommend that you use a thread to call it. After initializing the map, I wrote a thread, the geocode ("detailed address", "Specific City") method of MKSearch is called in the thread, and the loading is successful. However, one problem is that I have to click the screen to refresh the map and start searching on the Internet, that is, to refresh the androidmanifest IN THE AndroidMainfest. xml file.
Android: tar
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