how to view pdf files on android

directory where your Javah is located 3:working directory fill it in. 4:arguments Fill in The last apply is the right, Then put the mouse on the Hellowordactiviry.java, and notice that it's not on the project. Then click on the button just now, point this green, not the right triangle, and then you will see the JNI directory under the header file, The same is the correct code [HTML]View Plaincopy /* Don't

When using WebView to load Web pages, there are some fixed resource files such as JS jquery package, CSS, pictures and other resources will be relatively large, if directly from the network loading will cause the page to load relatively slow, and will consume more traffic. So these files should be in assets and packaged with the app.To solve this problem, you need to use the Shouldinterceptrequest (WebView

Most of the time, our software needs to store or re-access the processed data. Android provides the following methods for data storage:FileSharedpreferences (parameter)SQLite DatabaseContent Provider)Network 1. File 1.1 Use Files for data storage Activity provides the openfileoutput () method to output data to a file. The specific implementation process is the same as saving data to a file in the j2se envir

During this time, I was learning about Android Application Development. I was thinking that since Java was used for development, it should be a good decompilation to get the source code. Google is actually very simple. Here is my practice process. I solemnly declare that the purpose of the post is not to crack the software of other people, but it is completely a learning attitude, but it seems that some foreign software can be customized in this way.1

associate some classes during production, and direct deletion may cause errors. In this case of class conflicts in the jar package, you cannot delete one of them at will, but you must check whether there is any association that causes other classes to become unavailable. "Here, I would like to ask what the association relationship is like. I am not very familiar with compilation and dx. Other online solutions: Method 1:Eclipse-> Project-> remove Build Automatically-> Clear-> Build Project-> B

the download task information.Setfilterbyid (Long ... ids): Query download task information based on task numberSetfilterbystatus (int flags): Download task based on download status query　　Here's how to use it:Private voidQuerydowntask (Downloadmanager Downmanager,intstatus) {Downloadmanager.query Query=NewDownloadmanager.query (); Query.setfilterbystatus (status); Cursor Cursor=downmanager.query (query); while(Cursor.movetonext ()) {String Downid=cursor.getstring (Cursor.getcolumnindex

files. Put the JSON file you want to use in the Extract directory (you can download the JSON example to http://www.json-schema.org/address): Then, at the command line, enter: Jsonschema2pojo--source Address--target Java-gen You can enter the-HELP option to view additional parameters: Jsonschema2pojo–help For some non-standard JSON

Android recommends using an XML file to set the UI interface and then control the logical part with Java Code, which shows MVC thought. The full name of MVC is the model view Controller, which is models -Views (view) -Controller (Controller) abbreviation, a software design paradigm that organizes code with a separate approach to business logic, data, and interfa

Go from the following articles:http://blog.csdn.net/zuolongsnail/article/details/6559338http://blog.csdn.net/xiazdong/article/details/7687439Http://www.cnblogs.com/feisky/archive/2011/01/05/1926177.html1. File storage data uses IO operations in Java to save and read files, except that Android encapsulates the acquisition of input and output streams in the context class.The created storage file is saved unde

The list of files in the SD card is displayed through ListView in Android there are two methods, one is: Through the inheritance listactivity display, the second is: use Baseadapter display. Baseadapter is a common base class adapter that provides display data for some controls, such as ListView and spinner. Here are the steps to use the Baseadapter class to display the SD card via ListView: 1.main.xml int

The example in this article describes how the Android implementation puts files in SDcard. Share to everyone for your reference. Specifically as follows: Use the activity of the Openfileoutput () method to save the file, the file is stored in the mobile phone space, the general mobile phone storage space is not very large, storing small files also line, if you w

Usually we need to store on the phone for audio, video and so on large files, previously learned to use file for storage (using the file operation to store); Because of the small storage space of the phone itself, we need to store the file in SDcard, Today I also learned how to use the SDcard storage in Android; First, if you want to use SDcard for storage in your program, we have to do the following permi

author : Wan Jing, the absolute dustReprint Please famous source : http://blog.csdn.net/shulianghan/article/details/36438365Sample code Download :-- CSDN : http://download.csdn.net/detail/han1202012/7639253;-- GitHub : https://github.com/han1202012/TracerouteAndBusybox;1. Principles and Ideasfile permission modification cannot be implemented : If No root privileges , you cannot change the file permissions of a binary file;-- push BusyBox to Android

Android briefly introduces SharedPreference, internal files, and sdcard data storage, SharedPreference Store simple data in xml structure and store it in the data/package name/shared_prefs folder Usage There are three ways to create an object GetSharedPreferences () of Context () GetPreferences () of the Activity () Getdefasharsharedpreferences () of PreferenceManager () Get Data SharedPrefs. getXXX () meth

The company has a 16 gb sd card. After it is put on the mobile phone, the image library has never been flushed out. at first, it was thought that the SD card was very big and it took some time to scan. but the next day, there was still no card in the Image Library. that's strange. The SD card clearly has images. Why is the image not shown in the Image Library. check the log and find the SD card scanned again. there are also images scanned logs. I thought it was a problem with the image display i

1. Duplicate files copied in APK Meta-inf/license.txtandroid { packagingOptions { exclude ‘META-INF/LICENSE.txt‘ }}My Logcat:log execution failed for task ':P Rog:packagedebug '. Duplicate files copied in APK meta-inf/license.txt File 1:/home/scijoker/androidstudioprojects/progproject/prog/libs/ Httpclient-4.1.1.jar File 2:/home/scijoker/androidstudioprojects/progproject/prog/libs/httpclient-4.1