java.lang.System.loadLibrary()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.lang.System.loadLibrary()方法的一些代码示例，展示了System.loadLibrary()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。System.loadLibrary()方法的具体详情如下：
包路径：java.lang.System
类名称：System
方法名：loadLibrary

System.loadLibrary介绍

[英]Loads and links the library with the specified name. The mapping of the specified library name to the full path for loading the library is implementation-dependent.
[中]加载并链接具有指定名称的库。指定库名称到加载库的完整路径的映射取决于实现。

代码示例

代码示例来源：origin: netty/netty

  1. /**
  2.  * Delegate the calling to {@link System#load(String)} or {@link System#loadLibrary(String)}.
  3.  * @param libName - The native library path or name
  4.  * @param absolute - Whether the native library will be loaded by path or by name
  5.  */
  6. public static void loadLibrary(String libName, boolean absolute) {
  7.   if (absolute) {
  8.     System.load(libName);
  9.   } else {
  10.     System.loadLibrary(libName);
  11.   }
  12. }

代码示例来源：origin: google/ExoPlayer

  1. /**
  2.  * Returns whether the underlying libraries are available, loading them if necessary.
  3.  */
  4. public synchronized boolean isAvailable() {
  5.  if (loadAttempted) {
  6.   return isAvailable;
  7.  }
  8.  loadAttempted = true;
  9.  try {
  10.   for (String lib : nativeLibraries) {
  11.    System.loadLibrary(lib);
  12.   }
  13.   isAvailable = true;
  14.  } catch (UnsatisfiedLinkError exception) {
  15.   // Do nothing.
  16.  }
  17.  return isAvailable;
  18. }

代码示例来源：origin: stackoverflow.com

  1. class JNIGlue {
  2.   static {
  3.     System.loadLibrary("foo");
  4.   }
  5. }

代码示例来源：origin: stackoverflow.com

  1. static {
  2.   System.loadLibrary("stlport_shared");
  3.   System.loadLibrary("foo");
  4.   System.loadLibrary("bar");
  5. }

代码示例来源：origin: redisson/redisson

  1. /**
  2.  * Delegate the calling to {@link System#load(String)} or {@link System#loadLibrary(String)}.
  3.  * @param libName - The native library path or name
  4.  * @param absolute - Whether the native library will be loaded by path or by name
  5.  */
  6. public static void loadLibrary(String libName, boolean absolute) {
  7.   if (absolute) {
  8.     System.load(libName);
  9.   } else {
  10.     System.loadLibrary(libName);
  11.   }
  12. }

代码示例来源：origin: wildfly/wildfly

  1. /**
  2.  * Delegate the calling to {@link System#load(String)} or {@link System#loadLibrary(String)}.
  3.  * @param libName - The native library path or name
  4.  * @param absolute - Whether the native library will be loaded by path or by name
  5.  */
  6. public static void loadLibrary(String libName, boolean absolute) {
  7.   if (absolute) {
  8.     System.load(libName);
  9.   } else {
  10.     System.loadLibrary(libName);
  11.   }
  12. }

代码示例来源：origin: redisson/redisson

  1. /**
  2.  * Make a call to {@link System#loadLibrary(String)} to load the native library which assumes
  3.  * that the library is available on the path based on this {@link Bundle}'s {@link Manifest}.
  4.  */
  5. public void start(BundleContext context)
  6.     throws Exception
  7. {
  8.   String library = System.mapLibraryName(LIBRARY_NAME);
  9.   if (library.toLowerCase().endsWith(".dylib")) {
  10.     // some MacOS JDK7+ vendors map to dylib instead of jnilib
  11.     library = library.replace(".dylib", ".jnilib");
  12.   }
  13.   System.loadLibrary(library);
  14.   SnappyLoader.setSnappyApi(new SnappyNative());
  15. }

代码示例来源：origin: stackoverflow.com

  1. public class MainActivity extends Activity {
  3. @Override
  4. protected void onCreate(Bundle savedInstanceState) {
  5.   super.onCreate(savedInstanceState);
  7.   // A normal textview
  8.   TextView textView = new TextView(getApplicationContext());
  9.   // set the text of textview with the string of shared cpp code
  10.   textView.setText(concateneMyStringWithCppString("Javaaaa"));
  11.   // normal things
  12.   setContentView(textView);
  14.   // only interface things nothng important
  15.   textView.setTextSize(50);
  16.   textView.setTextColor(Color.BLACK);
  17.   textView.setGravity(Gravity.CENTER);
  18. }
  20. // very important
  21. private native String concateneMyStringWithCppString(String myString);
  22. static {
  23.   System.loadLibrary("HelloCpp");
  24. }
  26. }

代码示例来源：origin: stackoverflow.com

  1. public class Main {
  2.   public native int square(int i);
  3.   public static void main(String[] args) {
  4.     System.loadLibrary("Main");
  5.     System.out.println(new Main().square(2));
  6.   }
  7. }

代码示例来源：origin: stackoverflow.com

  1. public class Main {
  2.   public native int intMethod(int i);
  3.   public static void main(String[] args) {
  4.     System.loadLibrary("Main");
  5.     System.out.println(new Main().intMethod(2));
  6.   }
  7. }

代码示例来源：origin: koral--/android-gif-drawable

  1. static void loadLibrary() {
  2.     try {
  3.       System.loadLibrary(BASE_LIBRARY_NAME);
  4.     } catch (final UnsatisfiedLinkError e) {
  5.       ReLinker.loadLibrary(getContext());
  6.     }
  7.   }
  8. }

代码示例来源：origin: stackoverflow.com

  1. class HelloWorld {
  2. private native void print();
  3. public static void main(String[] args) {
  4.   new HelloWorld().print();
  5. }
  6. static {
  7.   System.loadLibrary("HelloWorld");
  8. }  }

代码示例来源：origin: Tencent/tinker

  1. /**
  2.  * only support auto load lib/armeabi library from patch.
  3.  * in some process, you may not want to install tinker
  4.  * and you can load patch dex and library without install tinker!
  5.  */
  6. public static void loadArmLibrary(ApplicationLike applicationLike, String libName) {
  7.   if (libName == null || libName.isEmpty() || applicationLike == null) {
  8.     throw new TinkerRuntimeException("libName or context is null!");
  9.   }
  10.   if (TinkerApplicationHelper.isTinkerEnableForNativeLib(applicationLike)) {
  11.     if (TinkerApplicationHelper.loadLibraryFromTinker(applicationLike, "lib/armeabi", libName)) {
  12.       return;
  13.     }
  14.   }
  15.   System.loadLibrary(libName);
  16. }

代码示例来源：origin: Tencent/tinker

  1. /**
  2.  * The same as {@link #loadArmV7Library(Context, String)} but it can be called before
  3.  * calling {@link TinkerInstaller#install}
  4.  * @param appLike
  5.  * @param libName
  6.  */
  7. public static void loadArmV7LibraryWithoutTinkerInstalled(ApplicationLike appLike, String libName) {
  8.   if (libName == null || libName.isEmpty() || appLike == null) {
  9.     throw new TinkerRuntimeException("libName or appLike is null!");
  10.   }
  11.   if (TinkerApplicationHelper.isTinkerEnableForNativeLib(appLike)) {
  12.     if (TinkerApplicationHelper.loadLibraryFromTinker(appLike, "lib/armeabi-v7a", libName)) {
  13.       return;
  14.     }
  15.   }
  16.   System.loadLibrary(libName);
  17. }

代码示例来源：origin: Tencent/tinker

  1. /**
  2.  * only support auto load lib/armeabi-v7a library from patch.
  3.  * in some process, you may not want to install tinker
  4.  * and you can load patch dex and library without install tinker!
  5.  * }
  6.  */
  7. public static void loadArmV7aLibrary(ApplicationLike applicationLike, String libName) {
  8.   if (libName == null || libName.isEmpty() || applicationLike == null) {
  9.     throw new TinkerRuntimeException("libName or context is null!");
  10.   }
  11.   if (TinkerApplicationHelper.isTinkerEnableForNativeLib(applicationLike)) {
  12.     if (TinkerApplicationHelper.loadLibraryFromTinker(applicationLike, "lib/armeabi-v7a", libName)) {
  13.       return;
  14.     }
  15.   }
  16.   System.loadLibrary(libName);
  17. }

代码示例来源：origin: Tencent/tinker

  1. /**
  2.  * The same as {@link #loadArmLibrary(Context, String)} but it can be called before
  3.  * calling {@link TinkerInstaller#install}
  4.  * @param appLike
  5.  * @param libName
  6.  */
  7. public static void loadArmLibraryWithoutTinkerInstalled(ApplicationLike appLike, String libName) {
  8.   if (libName == null || libName.isEmpty() || appLike == null) {
  9.     throw new TinkerRuntimeException("libName or appLike is null!");
  10.   }
  11.   if (TinkerApplicationHelper.isTinkerEnableForNativeLib(appLike)) {
  12.     if (TinkerApplicationHelper.loadLibraryFromTinker(appLike, "lib/armeabi", libName)) {
  13.       return;
  14.     }
  15.   }
  16.   System.loadLibrary(libName);
  17. }

代码示例来源：origin: Tencent/tinker

  1. /**
  2.  * you can use TinkerInstaller.loadArmV7Library replace your System.loadLibrary for auto update library!
  3.  * only support auto load lib/armeabi-v7a library from patch.
  4.  * for other library in lib/* or assets,
  5.  * you can load through {@code TinkerInstaller#loadLibraryFromTinker}
  6.  */
  7. public static void loadArmV7Library(Context context, String libName) {
  8.   if (libName == null || libName.isEmpty() || context == null) {
  9.     throw new TinkerRuntimeException("libName or context is null!");
  10.   }
  11.   Tinker tinker = Tinker.with(context);
  12.   if (tinker.isEnabledForNativeLib()) {
  13.     if (TinkerLoadLibrary.loadLibraryFromTinker(context, "lib/armeabi-v7a", libName)) {
  14.       return;
  15.     }
  16.   }
  17.   System.loadLibrary(libName);
  18. }

代码示例来源：origin: Tencent/tinker

  1. /**
  2.  * you can use TinkerInstaller.loadLibrary replace your System.loadLibrary for auto update library!
  3.  * only support auto load lib/armeabi library from patch.
  4.  * for other library in lib/* or assets,
  5.  * you can load through {@code TinkerInstaller#loadLibraryFromTinker}
  6.  */
  7. public static void loadArmLibrary(Context context, String libName) {
  8.   if (libName == null || libName.isEmpty() || context == null) {
  9.     throw new TinkerRuntimeException("libName or context is null!");
  10.   }
  11.   Tinker tinker = Tinker.with(context);
  12.   if (tinker.isEnabledForNativeLib()) {
  13.     if (TinkerLoadLibrary.loadLibraryFromTinker(context, "lib/armeabi", libName)) {
  14.       return;
  15.     }
  16.   }
  17.   System.loadLibrary(libName);
  18. }

代码示例来源：origin: libgdx/libgdx

  1. /** Loads a shared library for the platform the application is running on.
  2.  * @param libraryName The platform independent library name. If not contain a prefix (eg lib) or suffix (eg .dll). */
  3. public void load (String libraryName) {
  4.   // in case of iOS, things have been linked statically to the executable, bail out.
  5.   if (isIos) return;
  6.   synchronized (SharedLibraryLoader.class) {
  7.     if (isLoaded(libraryName)) return;
  8.     String platformName = mapLibraryName(libraryName);
  9.     try {
  10.       if (isAndroid)
  11.         System.loadLibrary(platformName);
  12.       else
  13.         loadFile(platformName);
  14.       setLoaded(libraryName);
  15.     } catch (Throwable ex) {
  16.       throw new GdxRuntimeException("Couldn't load shared library '" + platformName + "' for target: "
  17.         + System.getProperty("os.name") + (is64Bit ? ", 64-bit" : ", 32-bit"), ex);
  18.     }
  19.   }
  20. }

代码示例来源：origin: libgdx/libgdx

  1. /** Loads a shared library for the platform the application is running on.
  2.  * @param libraryName The platform independent library name. If not contain a prefix (eg lib) or suffix (eg .dll). */
  3. public void load (String libraryName) {
  4.   // in case of iOS, things have been linked statically to the executable, bail out.
  5.   if (isIos) return;
  6.   synchronized (SharedLibraryLoader.class) {
  7.     if (isLoaded(libraryName)) return;
  8.     String platformName = mapLibraryName(libraryName);
  9.     try {
  10.       if (isAndroid)
  11.         System.loadLibrary(platformName);
  12.       else
  13.         loadFile(platformName);
  14.       setLoaded(libraryName);
  15.     } catch (Throwable ex) {
  16.       throw new GdxRuntimeException("Couldn't load shared library '" + platformName + "' for target: "
  17.         + System.getProperty("os.name") + (is64Bit ? ", 64-bit" : ", 32-bit"), ex);
  18.     }
  19.   }
  20. }

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