Creating and Porting NDK- Based Android Applications. The CDT module is not required, but does enable development in the familiar Eclipse IDE. The Cygwin module must be installed in the Windows environment, but is not required in the Linux environment. Of course, the entire development environment needs to support the Java development environment. The following sections explain the installation steps for each module separately. Android NDK Installation. This section describes how to install the Android NDK: 1. Install the Android NDK. Android NDK installation is relatively simple. All you need to do is to extract the downloaded android- ndk- r. I am trying to prevent applications from binding to a Service if they are not signed with the same certificate as the containing application. For this I have declared. Network Attached Storage (NAS) for home and business, Synology is dedicated to provide DiskStation NAS that offers RAID storage, storage for virtualization, backup. This site uses cookies for analytics, personalized content and ads. By continuing to browse this site, you agree to this use. Learn more. In this case, we install Android NDK in the directory D: \Android\android- ndk- r. You need to remember this location, as it is required for the following configuration to set up the environment. Install Cygwin. This section describes how to install Cygwin: 1. Android applications can incorporate native code using the Native Development Kit (NDK) toolset. It allows developers to reuse legacy code, program for low-level. Visit Cygwin’s official web site (http: //www. Download the Cygwin software, as shown in Figure 7- 5. Go to the download page, and then click on the setup. Figure 7- 5. Cygwin Download Page. Double- click the downloaded setup. The pop- up shown in Figure 7- 6 appears. Figure 7- 6. Cygwin Initial Install Window. The installation mode selection box is shown in Figure 7- 7. In this example, select Install from Internet mode. Figure 7- 7. Cygwin Install Mode Selection. The display installation directory and user settings selection box is shown in Figure 7- 8. Figure 7- 8. Installation Directory and User Settings Selection. You are next prompted to enter a temporary directory to store the downloaded files, as shown in Figure 7- 9. Android Unbind Service From Activity DiagramFigure 7- 9. Cygwin Temporary Directory Setting for Downloaded Files. Next you are prompted to select an Internet connection type, as shown in Figure 7- 1. For this example, select Direct Connection. Figure 7- 1. 0. Cygwin Setup Internet Connection Type Selection. You are now prompted to select a download mirror site, as shown in Figure 7- 1. Figure 7- 1. 1. Cygwin Install: Prompt to Select Download Mirror Site. Start the download and install the basic parts, as shown in Figure 7- 1. During the setup, a Setup alert will indicate that this is the first time you are installing Cygwin, as shown in Figure 7- 1. Click OK to continue. Figure 7- 1. 2. Cygwin Installation Package Download and Install. Select the packages to install, as shown in Figure 7- 1. The default is to install all of the packages. Figure 7- 1. 3. Cygwin Packages Install Selection. If you download all components, the total size is more than 3. GB. This requires a very long time on normal broadband Internet speeds; it is actually not recommended to install all the components. You need to install the NDK Devel component and the Shells components, as shown in Figure 7- 1. Figure 7- 1. 4. Cygwin Components Packages Required by NDKThere are some tricks to the selection of Devel and Shells from the Install component packages. You can first click on the loop icon next to All; it will loop among Install, Default, and Uninstall. Set it to Uninstall State, and then click the loop icon next to the Devel and Shells entries so that it stays in the Install state. Finally, click Next to continue. The contents of the selected components are displayed next, as shown in Figure 7- 1. Figure 7- 1. 5. Dependency Reminder After Selecting Cygwin Component Package. Start to download and install the selected components, as shown in Figure 7- 1. Figure 7- 1. 6. Cygwin Download and Install Selected Components. Installation is complete. Message boxes appear, as shown in Figure 7- 1. Figure 7- 1. 7. Cygwin Reminder Boxes after Installation Is Complete. Configure the Cygwin Windows path environment variable. Follow these steps to add the NDK package installation directory and Cygwin bin directory to the path environment variable: 1. On the desktop, right- click My Computer and select the \Properties\Advanced\Environment Variables menu item. Click System Variables in the PATH variable. Then click the Edit button in the dialog box of the [variable value] NDK package added after the installation directory, in the subdirectory build\tools\cygwin\bin. For example, if the NDK is installed in the directory D: \Android\android- ndk- r. Cygwin is installed in the D: \cygwin directory, you add the path after the PATH variable, as follows: PATH=..; D: \Android\android- ndk- r. D: \Android\android- ndk- r. D: \cygwin\bin. After this configuration is successful, you can use the console command cmd under Linux commands. For example, Figure 7- 1. Windows dir command and the Linux ls command. Figure 7- 1. 8. Command- Line Window after Installing the NDKYou configure Cygwin’s internal environment variables for NDK as follows: 1. Before configuring the NDK Cygwin internal environment variables, you must run Cygwin at least once, otherwise the \cygwin\home directory will be empty. Click the Browse button in Windows Explorer and select the mintty. Cygwin installation directory (in this example, it is located at D: \cygwin\bin). The window is shown in Figure 7- 1. Figure 7- 1. 9. Initial Window when Starting Cygwin for the First Time. Then select the Windows menu \programs\Cygwin\Cygwin terminal. You can directly enter the Cygwin window, as shown in Figure 7- 2. Figure 7- 2. 0. Cygwin Window if it Is Not Being Run for the First Time. This will create a username (in this case, the Windows logon username hlgu) subdirectory under empty\cygwin\home and generate several files in the directory. D: \cygwin\home\hlgu> dir. Find . bash_profile in the installation directory cygwin\home\< username> \ file. In this case, it is D: \cygwin\home\hlgu\. Bash_profile. To the end of the file, add the following code: NDK=< android- ndk- r. NDK_folder> export NDKANDROID_NDK_ROOT=< android- ndk- r. NDK_folder > export ANDROID_NDK_ROOTThe line < android- ndk- r. NDK_folder > corresponds to the installation directory of the NDK package. In this example, it’s D: \Android\android- ndk- r. Cygwin provides a directory- conversion mechanism. Add /cygdrive/DRIVELETTER/ in front of the directory to refer to the designated directory in the drive. Here, DRIVELETTER is the driver letter of the directory. Consider this example: NDK= /cygdrive/d/Android/android- ndk- r. NDKANDROID_NDK_ROOT=/cygdrive/d/Android/android- ndk- r. ANDROID_NDK_ROOT4. Determine whether the command can be run by testing the make command. C: \Documents and Settings\hlgu> make - v. GNU Make 3. 8. 2. Built for i. 68. 6- pc- cygwin. Copyright (C) 2. 01. Free Software Foundation, Inc. License GPLv. 3+: GNU GPL version 3 or later < http: //gnu. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. If you see this output, it means the make command is running normally. Make sure the version of make is 3. Now you can test the gcc, g+, gcj, and gnat commands: C: \Documents and Settings\hlgu> gcc - v. Access denied. C: \Documents and Settings\hlgu> g++ - v. Access denied. C: \Documents and Settings\hlgu> gcj. Access denied. C: \Documents and Settings\hlgu> gnat. Access denied. If you get the Access denied message, you need to continue the following steps. Otherwise, the installation is completed successfully. Under the bin directory of Cygwin, delete the gcc. Under the same directory, select the needed gcc, g++, gcj, and gnat files that match the version. For example, version 4 corresponds to gcc- 4. Make copies of those files and rename the copied files gcc. Now test again to see if gcc and the other commands can run: C: \Documents and Settings\hlgu> gcc - v. Using built- in specifications, you can see which commands are available: COLLECT_GCC=gcc. COLLECT_LTO_WRAPPER=/usr/lib/gcc/i. Target: i. 68. 6- pc- cygwin. Configured with: /gnu/gcc/releases/respins/4. C - -datadir=/usr/share - -infodir=/usr/share/info - -mandir=/usr/share/man - v - -with- gmp=/usr - -with- mpfr=/usr - -enable- bootstrap - -enable- version- specific- runtime- libs - -libexecdir=/usr/lib - -enable- static - -enable- shared - -enable- shared- libgcc - -disable- __cxa_atexit - -with- gnu- ld - -with- gnu- as - -with- dwarf. CC=gcc- 4 CXX=g++- 4 CC_FOR_TARGET=gcc- 4. CXX_FOR_TARGET=g++- 4 GNATMAKE_FOR_TARGET=gnatmake GNATBIND_FOR_TARGET=gnatbind - -with- ecj- jar=/usr/share/java/ecj. Thread model: posixgcc version 4. GCC)C: \Documents and Settings\hlgu> g++ - v. Using built- in specifications, like gcc, you can see which commands are available: COLLECT_GCC=g++COLLECT_LTO_WRAPPER=/usr/lib/gcc/i. Net. Beans Plugin Portal, Net. Beans IDE Plugins Repository.
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