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As we all know, the Android resource file is an int type ID to save its reference, through the annotation type, we can write the code, the time to find the parameter type of error, avoid potential bugs, as follows:By @LayoutRes We specify that the parameter must be in R.LAYOUT.XXX format, and the IDE will prompt us for errorsIntroduction of annotation types into the project through GradleCompile ' com.android.support:support-annotations:23.1.1 '
Android Studio Run with--STACKTRACE option to get the stack trace. Run with--info or--debu
Hint Information
It actually lets you look at more log information. Find the root of your project, such as your project is MyApplication, enter the directory under DOS command to execute
If the above command doesn't work, use the following command to try
Can see a lot of wron
This article illustrates four ways to get picture resources from the Android programming implementation. Share to everyone for your reference, specific as follows:
1. The picture is placed in the SDcard:
Copy Code code as follows:
Bitmap imagebitmap = bitmapfactory.decodefile (path)//path is the path to the picture, and the directory is/sdcard
2. The picture is under the project's Res fol
Android6.0 the Apache HTTP client all the packages and classes are marked as deprecated no longer recommends that all HTTP-related data requests and submissions be implemented through the HttpURLConnection class, The reality is that a lot of Android developers have always been Apache HTTP clients to do Andoird client and back-end HTTP Interface data interaction, small series just used httpurlconnection to do an An
First, the phenomenon
The usual way to download files via the Android WebView is
1. Rewrite the Downloadlistener Ondownloadstart method, pop-up dialog box in Ondownloadstart method prompts the user to have a new file to download
2. After the user clicks OK, downloads the file through the HTTP GET
As a result of the Android WebView, the above download file ste
This article mainly introduces Android to get the phone screen size implementation code, Android development often need to get the screen width, this article directly packaged into a tool class, the need for friends can refer to the
Android in the custom control, often need
In Android development, we often use the network connection function and the server data interaction, this Android SDK provides Apache httpclient to facilitate our use of a variety of HTTP services. You can think of httpclient as a browser, through its API we can easily send out Get,post request (of course its function is far more than these)
This only describes
This demo demo shows that Android interacts with the server through get and POST request methods, so you need to build a server test that you can use Tomcat for reference: http://blog.csdn.net/youmingyu/article/ details/52524006, Demo: Download address.
Note Open Access network permissions:
Source:
Package fk.androiddemo_007;
Import Android.os.Handler;
Import Android.os.Message;
Import android.support.v7
Android development: Get all software information, android Development
Program running:
Program code:
/*** Obtain all software information ** 1. display All software in the system in asynchronous mode * 2. click Open specified software * 3. local SharedPreferences * @ author jph * Date: 2014.09.21 */public class ScanPackage1 extends Activity {/** scan successf
Mainactivity is as follows:
Copy Code code as follows:
Package cn.testjavascript;
Import Java.util.StringTokenizer;
Import Android.os.Bundle;
Import Android.webkit.WebView;
Import android.app.Activity;
/**
* Demo Description:
* Get the data from the form on the Web in Android
*/
public class Mainactivity extends activity {
Private WebView Mwebview;
Private String date =null;
Private
Whether it is PC-side software or Android software, sometimes when sold without outright buyout or purchase of copyright, then you need a set of selling, and to ensure that the software is forbidden to copy.The software on the PC side can be added to the code to detect the hard drive serial number. In this case, it is not possible to copy to another computer because the hard drive serial number is identified incorrectly. Then in
[Practical] How To Get The Android Status Bar and the android Status Bar
private static int getStatusHeight(Context context){ int statusHeight = 0; Rect localRect = new Rect(); ((Activity) context).getWindow().getDecorView().getWindowVisibleDisplayFrame(localRect); statusHeight = localRect.top; if (0 == statusHeight){
GET for Android Http client Programming
Speaking of Http programming, I don't have to remember the GET and POST request methods. This article lists the common Http programming methods in Android with simple steps and instructions, for the reference and guidance of those who have just started on the
Android get contacts and android contacts
In getting started with Android, record the problems encountered in learning and some personal summaries.The contact database path is/data/com. android. providers. contacts/database/contacts2.db.Permission issues:
Android -- get application version name and version number, Android -- version number
Use Package Manager
Package com. liunan. myfirstapp. util; import android. content. context; import android. content. pm. applicationInfo; import andro
How to get the native phone number on Android, and now Android provides an API to read the number that was cured on the early SIM card,
Copy Code code as follows:
Private String Getphonenumber () {
Telephonymanager Mtelephonymgr;
Mtelephonymgr = (Telephonymanager) getsystemservice (Context.telephony_service);
return Mtelephonymgr.getline1number ();
}
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