p7m file android

String getfromassets (string filename ){Try {Inputstreamreader inputreader = new inputstreamreader (getresources (). getassets (). Open (filename ));Bufferedreader bufreader = new bufferedreader (inputreader );String line = "";String result = "";While (line = bufreader. Readline ())! = NULL)Result + = line;Return result;} Catch (exception e ){E. printstacktrace ();}}Of course, if you want to get the memory stream, you can also directly return the memory stream! Next, create a new project

1. If the database file is larger than 1 MB, use the Filesplit tool to cut. First download the software tool 2. first put the existing database under the assets folder. If this file does not exist, create this folder in the android project. The Code is as follows: import java. io. File;Import java. io. FileOutputStream

Official Android development documentation Training series course Chinese version: data storage file storage The file system used by Android is similar to the disk-type file system on other platforms. This section describes how to use FileAPI to read and write files in the

Download: DownLoaderTask. java package com.johnny.testzipanddownload;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import android.app.ProgressDialog;import android.content.Context;import android.content.DialogInterf

Four storage methods for Android data: SharedPreferences, SQLite, Content Provider, and File (2) -- SQLite and androidsqlite SQLite is a lightweight database designed for embedded devices. It has only five data types: NULL: NULL INTEGER: INTEGER REAL: Floating Point Number TEXT: String BLOB: Big Data In SQLite, the BOOLEAN and DATE types are not specifically designed, because the BOOLEAN type can replace tr

Gradle packaging android (implement external import signature file, multi-channel packaging, import ant script) Android automatic packaging has been completed recently. Previously, it has completed packaging in the form of command lines, the original ant script packaging, and android-based SDK packaging, and implemente

Data persistence means that the instantaneous data in memory is saved to the storage device, ensuring that the data is not lost even when the phone or computer shuts down. The data stored in memory is instantaneous, while the data stored in the storage device is persisted, and persistence provides a mechanism for transforming the data between the transient state and the persistent state.Persistence technology is widely used in various programming fields, and the nature of this book is to explore

Copyright NOTICE: Reprint must indicate this article transferred from Zhangjie's blog: http://blog.yanzhenjie.com Android Debug DAFA Custom IDE Default signature file, do you bother debugging a third-party SDK when the debug signature and release signature collide? Do you pass the third-party feature test when you debug, and the release is not available?If you haven't met the question I'm talking about

Recently, we have been studying Android transplantation. The target platform is.I have seen many excellent articles on the Internet and have gained a lot of inspiration.Here is an article on how to use NFS as the root file system, which is well written and reposted here. After reading this article, based on your own experiences, write down your usage methods for your reference. [First written by Steve Guo,

This example describes how Android saves and reads data in file format. Share to everyone for your reference, specific as follows: To secure the data directly in the form of a file in the device, the standard Java file input stream (FileInputStream) is obtained through the Context.openfileinput () method, through Cont

Then the widget cannot be installed and executed! In reference to the official forum on the same issue after a post, there is no real solution (mainly the landlord is not honest, resolved also do not explain how to solve). In the end, it was solved by myself, because I used Win7, the default Launch SDK Eclipse is not administrator rights, resulting in an error. The solution is: 1. Open AVD directory (default is c:users your name. Android), remove t

When doing Android NDK development, C code needs to be compiled with Ndk-build, while Java code needs to be compiled with the Android SDK.There are two methods of compiling C code:First, write the C code, and then use Cygwin to build ndk-build environment, with Ndk-build to compile the relevant. so file (Libs directory),Then use eclipse to compile the Java progra

Mediarecord can be used for recording in Android, which is easy to operate. However, it is not professional enough to Process audio. If you want to process audio in real time or encapsulate the audio You can use audiorecord for recording. Here is a piece of code. Audio Recording in audiorecord and audio encapsulation in WAV format are implemented. Audiotrack and audiotrack can be used for edge recording and play, you can refer to: http://blog.sina.com

Common attributes Android: id --- specify the corresponding ID for the controlAndroid: text --- specifies the text displayed in the control. Note that strings in the strings. xml file should be used as much as possible here.Android: grimace --- specifies the basic position of the control, such as center and right. Here, the text position in the control is not the control itself.Android: textSize --- speci