Java Code Examples for android.content.Context#getClassLoader()

The following examples show how to use android.content.Context#getClassLoader() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: EmuDetector.java From Telegram-FOSS with GNU General Public License v2.0

6 votes

private String getProp(Context context, String property) {
    try {
        ClassLoader classLoader = context.getClassLoader();
        Class<?> systemProperties = classLoader.loadClass("android.os.SystemProperties");

        Method get = systemProperties.getMethod("get", String.class);

        Object[] params = new Object[1];
        params[0] = property;

        return (String) get.invoke(systemProperties, params);
    } catch (Exception exception) {
        // empty catch
    }
    return null;
}

Example 2

Source File: HotFix.java From Android-Tech with Apache License 2.0

6 votes

@TargetApi(14)
private static void injectBelowApiLevel14(Context context, String str, String str2)
        throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException {
    PathClassLoader obj = (PathClassLoader) context.getClassLoader();
    DexClassLoader dexClassLoader =
            new DexClassLoader(str, context.getDir("dex", 0).getAbsolutePath(), str, context.getClassLoader());
    dexClassLoader.loadClass(str2);
    setField(obj, PathClassLoader.class, "mPaths",
            appendArray(getField(obj, PathClassLoader.class, "mPaths"), getField(dexClassLoader, DexClassLoader.class,
                            "mRawDexPath")
            ));
    setField(obj, PathClassLoader.class, "mFiles",
            combineArray(getField(obj, PathClassLoader.class, "mFiles"), getField(dexClassLoader, DexClassLoader.class,
                            "mFiles")
            ));
    setField(obj, PathClassLoader.class, "mZips",
            combineArray(getField(obj, PathClassLoader.class, "mZips"), getField(dexClassLoader, DexClassLoader.class,
                    "mZips")));
    setField(obj, PathClassLoader.class, "mDexs",
            combineArray(getField(obj, PathClassLoader.class, "mDexs"), getField(dexClassLoader, DexClassLoader.class,
                    "mDexs")));
    obj.loadClass(str2);
}

Example 3

Source File: MultiDexUtils.java From iGap-Android with GNU Affero General Public License v3.0

6 votes

/**
 * Get all loaded external classes name in "classes2.dex", "classes3.dex" ....
 *
 * @return get all loaded external classes
 */
public List<String> getLoadedExternalDexClasses(Context context) {
    try {
        final List<String> externalDexClasses = getExternalDexClasses(context);
        if (externalDexClasses != null && !externalDexClasses.isEmpty()) {
            final ArrayList<String> classList = new ArrayList<>();
            final java.lang.reflect.Method m = ClassLoader.class.getDeclaredMethod("findLoadedClass", new Class[]{String.class});
            m.setAccessible(true);
            final ClassLoader cl = context.getClassLoader();
            for (String clazz : externalDexClasses) {
                if (m.invoke(cl, clazz) != null) {
                    classList.add(clazz.replaceAll("\\.", "/").replaceAll("$", ".class"));
                }
            }
            return classList;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

Example 4

Source File: AppUtils.java From AndroidNavigation with MIT License

6 votes

public static boolean isVivoCutout(Context context) {
    if (!isVivo()) {
        return false;
    }

    boolean ret = false;

    try {
        ClassLoader cl = context.getClassLoader();
        Class ftFeature = cl.loadClass("android.util.FtFeature");
        Method[] methods = ftFeature.getDeclaredMethods();
        if (methods != null) {
            for (int i = 0; i < methods.length; i++) {
                Method method = methods[i];
                if (method.getName().equalsIgnoreCase("isFeatureSupport")) {
                    ret = (boolean) method.invoke(ftFeature, NOTCH_IN_SCREEN_VOIO);
                    break;
                }
            }
        }
    } catch (Exception e) {
        // ignore
    }

    return ret;
}

Example 5

Source File: ClassLoaderInjectHelper.java From Neptune with Apache License 2.0

6 votes

/**
 * api >= 14时，注入jar
 *
 * @param context application object
 * @param dexPath lib path
 * @return inject object
 */
private static InjectResult injectAboveEqualApiLevel14(Context context, String dexPath, String soPath) {
    PathClassLoader pathClassLoader = (PathClassLoader) context.getClassLoader();
    File optDir = PluginInstaller.getPluginInjectRootPath(context);
    FileUtils.checkOtaFileValid(optDir, new File(dexPath));
    DexClassLoader dexClassLoader = new DexClassLoader(dexPath, optDir.getAbsolutePath(), soPath,
            pathClassLoader);
    InjectResult result = null;

    // If version > 22 LOLLIPOP_MR1
    if (Build.VERSION.SDK_INT > 22) {
        result = injectAboveApiLevel22(pathClassLoader, dexClassLoader);
    } else {
        result = injectAboveEqualApiLevel14(pathClassLoader, dexClassLoader);
    }

    return result;
}

Example 6

Source File: VDUtility.java From NewsMe with Apache License 2.0

6 votes

/**
 * 用反射方式加载类
 * 
 * @param context
 * @param path
 * @return
 */
public static Object loadClass(Context context, String path) {
	try {
		String dexPath = context.getApplicationInfo().sourceDir;
		PathClassLoader pathClassLoader = new PathClassLoader(dexPath,
				context.getClassLoader());
		Class<?> c = Class.forName(path, true, pathClassLoader);
		Object ret = c.newInstance();
		return ret;
	} catch (InstantiationException ex1) {
		ex1.printStackTrace();
	} catch (IllegalAccessException ex2) {
		ex2.printStackTrace();
	} catch (ClassNotFoundException ex3) {
		ex3.printStackTrace();
	}

	return null;
}

Example 7

Source File: HotFix.java From SDKHoxFix with Apache License 2.0

6 votes

@TargetApi(14)
private static void injectBelowApiLevel14(Context context, String str, String str2)
    throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException {
    PathClassLoader obj = (PathClassLoader) context.getClassLoader();
    DexClassLoader dexClassLoader =
        new DexClassLoader(str, context.getDir("dex", 0).getAbsolutePath(), str, context.getClassLoader());
    dexClassLoader.loadClass(str2);
    setField(obj, PathClassLoader.class, "mPaths",
        appendArray(getField(obj, PathClassLoader.class, "mPaths"), getField(dexClassLoader, DexClassLoader.class,
                "mRawDexPath")
        ));
    setField(obj, PathClassLoader.class, "mFiles",
        combineArray(getField(obj, PathClassLoader.class, "mFiles"), getField(dexClassLoader, DexClassLoader.class,
                "mFiles")
        ));
    setField(obj, PathClassLoader.class, "mZips",
        combineArray(getField(obj, PathClassLoader.class, "mZips"), getField(dexClassLoader, DexClassLoader.class,
            "mZips")));
    setField(obj, PathClassLoader.class, "mDexs",
        combineArray(getField(obj, PathClassLoader.class, "mDexs"), getField(dexClassLoader, DexClassLoader.class,
            "mDexs")));
    obj.loadClass(str2);
}

Example 8

Source File: PluginServiceClient.java From springreplugin with Apache License 2.0

5 votes

/**
 * 启动 Service 时，从 Intent 中获取 ComponentName
 */
private static ComponentName getServiceComponentFromIntent(Context context, Intent intent) {
    ClassLoader cl = context.getClassLoader();
    String plugin = PluginFactory.fetchPluginName(cl);

    /* Intent 中已指定 ComponentName */
    if (intent.getComponent() != null) {
        // 根据 Context 所带的插件信息，来填充 Intent 的 ComponentName 对象。具体见方法说明
        return PluginClientHelper.getComponentNameByContext(context, intent.getComponent());

    } else {
        /* Intent 中已指定 Action，根据 action 解析出 ServiceInfo */
        if (!TextUtils.isEmpty(intent.getAction())) {
            ComponentList componentList = PluginFactory.queryPluginComponentList(plugin);
            if (componentList != null) {
                // 返回 ServiceInfo 和 Service 所在的插件
                Pair<ServiceInfo, String> pair = componentList.getServiceAndPluginByIntent(context, intent);
                if (pair != null) {
                    return new ComponentName(pair.second, pair.first.name);
                }
            }
        } else {
            if (LOG) {
                LogDebug.d(PLUGIN_TAG, "PSS.startService(): No Component and no Action");
            }
        }
    }
    return null;
}

Example 9

Source File: HotFix.java From letv with Apache License 2.0

5 votes

@TargetApi(14)
private static void injectBelowApiLevel14(Context context, String str) throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException {
    PathClassLoader obj = (PathClassLoader) context.getClassLoader();
    DexClassLoader dexClassLoader = new DexClassLoader(str, context.getDir(Constant.JAR_IN_FOLDER_NAME, 0).getAbsolutePath(), str, context.getClassLoader());
    setField(obj, PathClassLoader.class, "mPaths", appendArray(getField(obj, PathClassLoader.class, "mPaths"), getField(dexClassLoader, DexClassLoader.class, "mRawDexPath")));
    setField(obj, PathClassLoader.class, "mFiles", combineArray(getField(obj, PathClassLoader.class, "mFiles"), getField(dexClassLoader, DexClassLoader.class, "mFiles")));
    setField(obj, PathClassLoader.class, "mZips", combineArray(getField(obj, PathClassLoader.class, "mZips"), getField(dexClassLoader, DexClassLoader.class, "mZips")));
    setField(obj, PathClassLoader.class, "mDexs", combineArray(getField(obj, PathClassLoader.class, "mDexs"), getField(dexClassLoader, DexClassLoader.class, "mDexs")));
}

Example 10

Source File: PluginUtils.java From NGA-CLIENT-VER-OPEN-SOURCE with GNU General Public License v2.0

5 votes

public static ClassLoader createClassLoader(String name) {
    Context context = ApplicationContextHolder.getContext();
    File extractFile = context.getFileStreamPath(name);
    String dexPath = extractFile.getPath();
    String libPath = PluginUtils.unzipLibraryFile(dexPath, extractFile.getParent());
    File fileRelease = context.getDir("dex", Context.MODE_PRIVATE);
    return new DexClassLoader(dexPath, fileRelease.getAbsolutePath(), libPath, context.getClassLoader());
}

Example 11

Source File: PluginSupportFragment.java From Neptune with Apache License 2.0

5 votes

@Override
public void onAttach(Context context) {
    super.onAttach(context);
    // 如果当前 ClassLoader 与 context 的 classLoader 不一致，则为宿主运行
    mInHost = getClass().getClassLoader() != context.getClassLoader();
    if (mInHost) {
        initPackageName();
        modifyHostContextForPlugin();
    }
}

Example 12

Source File: WelcomeAty.java From Huochexing12306 with Apache License 2.0

5 votes

public static String getProp(Context context, String property) {
 	try {
 		ClassLoader cl = context.getClassLoader();
 		@SuppressWarnings("rawtypes")
Class SystemProperties = cl.loadClass("android.os.SystemProperties");
 		@SuppressWarnings("unchecked")
Method method = SystemProperties.getMethod("get", String.class);
 		Object[] params = new Object[1];
 		params[0] = new String(property);
 		return (String)method.invoke(SystemProperties, params);
 	} catch (Exception e) {
 		return null;
 	}
 }

Example 13

Source File: FixDexUtils.java From My-MVP with Apache License 2.0

5 votes

private static void doDexInject(Context appContext, HashSet<File> loadedDex) {
    String optimizeDir = appContext.getFilesDir().getAbsolutePath() + File.separator + OPTIMIZE_DEX_DIR;// data/data/包名/files/optimize_dex（这个必须是自己程序下的目录）
    File fopt = new File(optimizeDir);
    if (!fopt.exists()) {
        fopt.mkdirs();
    }
    try {
        // 1.加载应用程序的dex
        PathClassLoader pathLoader = (PathClassLoader) appContext.getClassLoader();
        for (File dex : loadedDex) {
            // 2.加载指定的修复的dex文件
            DexClassLoader dexLoader = new DexClassLoader(
                    dex.getAbsolutePath(),// 修复好的dex（补丁）所在目录
                    fopt.getAbsolutePath(),// 存放dex的解压目录（用于jar、zip、apk格式的补丁）
                    null,// 加载dex时需要的库
                    pathLoader// 父类加载器
            );
            // 3.合并
            Object dexPathList = getPathList(dexLoader);
            Object pathPathList = getPathList(pathLoader);
            Object leftDexElements = getDexElements(dexPathList);
            Object rightDexElements = getDexElements(pathPathList);
            // 合并完成
            Object dexElements = combineArray(leftDexElements, rightDexElements);
            // 重写给PathList里面的Element[] dexElements;赋值
            Object pathList = getPathList(pathLoader);
            setField(pathList, pathList.getClass(), "dexElements", dexElements);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

Example 14

Source File: HotFix.java From HotFix with MIT License

5 votes

private static void injectAboveEqualApiLevel14(Context context, String str, String str2)
    throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException {
    PathClassLoader pathClassLoader = (PathClassLoader) context.getClassLoader();
    Object a = combineArray(getDexElements(getPathList(pathClassLoader)),
        getDexElements(getPathList(
            new DexClassLoader(str, context.getDir("dex", 0).getAbsolutePath(), str, context.getClassLoader()))));
    Object a2 = getPathList(pathClassLoader);
    setField(a2, a2.getClass(), "dexElements", a);
    pathClassLoader.loadClass(str2);
}

Example 15

Source File: PluginClientHelper.java From springreplugin with Apache License 2.0

5 votes

/**
 * 根据Context所带的插件信息，来填充Intent的ComponentName对象
 * 若外界将Context.xxxService方法用PluginServiceClient代替（如编译工具所做的），则这里会做如下事情：
 *      1、将外界传递的Intent为com.qihoo360.mobilesafe的包名，变成一个特定插件的包名
 *      2、这样交给外界的时候，其ComponentName已变成“插件名-类名”的形式，可以做下一步处理
 *      3、若其后处理失败，则仍会调用系统的相应方法（但不是该函数的职责）
 *
 * @param c    根据Context内容来决定如何填充Intent，此为那个Context对象
 * @param from ComponentName
 * @return 新的ComponentName。或者如果插件有问题，则返回from
 */
public static ComponentName getComponentNameByContext(Context c, ComponentName from) {
    if (from == null) {
        // 如果Intent里面没有带ComponentName，则我们不支持此特性，直接返回null
        // 外界会直接调用其系统的对应方法
        return null;
    }
    String appPackage = IPC.getPackageName();
    if (!TextUtils.equals(from.getPackageName(), appPackage)) {
        // 自己已填好了要使用的插件名（作为CN的Key），这里不做处理
        return from;
    }

    // 根据Context的ClassLoader来看到底属于哪个插件，还是只是主程序
    ClassLoader cl = c.getClassLoader();
    String pn = PluginFactory.fetchPluginName(cl);
    if (TextUtils.isEmpty(pn)) {
        // 获得了无效的插件信息，这种情况很少见，故打出错误信息，什么也不做
        if (LOGR) {
            LogRelease.e(PLUGIN_TAG, "pch.iibc: pn is n. n=" + from);
        }
    } else if (TextUtils.equals(pn, RePlugin.PLUGIN_NAME_MAIN)) {
        // 此Context属于主工程，则也什么都不做。稍后会直接走“主程序的Context”来做处理
        if (LOG) {
            LogDebug.d(PLUGIN_TAG, "PluginClientHelper.iibc(): Call Main! n=" + from);
        }
    } else {
        // 将Context所在的插件名写入CN中，待后面的方法去处理
        if (LOG) {
            LogDebug.d(PLUGIN_TAG, "PluginClientHelper.iibc(): Call Plugin! n=" + from);
        }
        return new ComponentName(pn, from.getClassName());
    }
    return from;
}

Example 16

Source File: SecondaryDex.java From secondary-dex-gradle with Apache License 2.0

5 votes

/**
 * Loads Dexes
 *
 * @param cxt    Application or Activity Context
 * @param dexDir The Dex Directory: Example: {@code /data/data/com.beetalk/app_dex/}
 * @param names
 * @return
 */
private static boolean appendOdexesToClassPath(Context cxt, File dexDir, String[] names) {
    // non-existing ZIP in classpath causes an exception on ICS
    // so filter out the non-existent
    String strDexDir = dexDir.getAbsolutePath();
    ArrayList<String> zipPaths = new ArrayList<String>();
    for (int i = 0; i < names.length; i++) {
        String zipPath = strDexDir + '/' + names[i];
        File f = new File(zipPath);
        if (f.isFile()) {
            zipPaths.add(zipPath);
        }
    }

    String[] zipsOfDex = new String[zipPaths.size()];
    zipPaths.toArray(zipsOfDex);

    PathClassLoader pcl = (PathClassLoader) cxt.getClassLoader();
    // do something dangerous
    try {
        if (Build.VERSION.SDK_INT < SDK_INT_ICS) {
            FrameworkHack.appendDexListImplUnderICS(zipsOfDex, pcl, dexDir);
        } else { // ICS+
            boolean kitkatPlus = Build.VERSION.SDK_INT >= SDK_INT_KITKAT;
            ArrayList<File> jarFiles = strings2Files(zipsOfDex);
            FrameworkHack.appendDexListImplICS(jarFiles, pcl, dexDir, kitkatPlus);
        }
        // update theAppended if succeeded to prevent duplicated classpath entry
        for (String jarName : names) {
            theAppended.add(jarName);
        }
        Log.d(LOG_TAG, "appendOdexesToClassPath completed : " + pcl);
        Log.d(LOG_TAG, "theAppended : " + theAppended);
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
    return true;
}

Example 17

Source File: ViewProxyBuilder.java From ViewInspector with Apache License 2.0

4 votes

private ViewProxyBuilder(Context context, Class<T> clazz) {
  mContext = context;
  mBaseClass = clazz;
  mParentClassLoader = context.getClassLoader();
}

Example 18

Source File: PluginViewInflater.java From Android-Plugin-Framework with MIT License

4 votes

private ClassLoader getClassLoader(Context context, String name, String prefix) {
    return context.getClassLoader();
}

Example 19

Source File: VClientImpl.java From container with GNU General Public License v3.0

4 votes

public ClassLoader getClassLoader(ApplicationInfo appInfo) {
    Context context = createPackageContext(appInfo.packageName);
    return context.getClassLoader();
}

Example 20

Source File: MonoPackageManager.java From Argus-RAT with GNU General Public License v3.0

4 votes

public static void LoadApplication (Context context, ApplicationInfo runtimePackage, String[] apks)
{
	synchronized (lock) {
		if (context instanceof android.app.Application) {
			Context = context;
		}
		if (!initialized) {
			android.content.IntentFilter timezoneChangedFilter  = new android.content.IntentFilter (
					android.content.Intent.ACTION_TIMEZONE_CHANGED
			);
			context.registerReceiver (new mono.android.app.NotifyTimeZoneChanges (), timezoneChangedFilter);
			
			System.loadLibrary("monodroid");
			Locale locale       = Locale.getDefault ();
			String language     = locale.getLanguage () + "-" + locale.getCountry ();
			String filesDir     = context.getFilesDir ().getAbsolutePath ();
			String cacheDir     = context.getCacheDir ().getAbsolutePath ();
			String dataDir      = getNativeLibraryPath (context);
			ClassLoader loader  = context.getClassLoader ();

			Runtime.init (
					language,
					apks,
					getNativeLibraryPath (runtimePackage),
					new String[]{
						filesDir,
						cacheDir,
						dataDir,
					},
					loader,
					new java.io.File (
						android.os.Environment.getExternalStorageDirectory (),
						"Android/data/" + context.getPackageName () + "/files/.__override__").getAbsolutePath (),
					MonoPackageManager_Resources.Assemblies,
					context.getPackageName ());
			
			mono.android.app.ApplicationRegistration.registerApplications ();
			
			initialized = true;
		}
	}
}