private void toggleCamera(boolean isNeedEnableCam) {
// TODO temporary insertion will be removed when GLVideoView will be fixed
DisplayMetrics displaymetrics = new DisplayMetrics();
displaymetrics.setToDefaults();
ViewGroup.LayoutParams layoutParams = imgMyCameraOff.getLayoutParams();
layoutParams.height = localVideoView.getHeight();
layoutParams.width = localVideoView.getWidth();
imgMyCameraOff.setLayoutParams(layoutParams);
Log.d(
TAG,
"Width is: "
+ imgMyCameraOff.getLayoutParams().width
+ " height is:"
+ imgMyCameraOff.getLayoutParams().height);
if (SessionManager.getCurrentSession() != null) {
SessionManager.getCurrentSession().setVideoEnabled(isNeedEnableCam);
cameraToggle.setChecked(isNeedEnableCam);
if (isNeedEnableCam) {
Log.d(TAG, "Camera is on");
switchCameraToggle.setVisibility(View.VISIBLE);
imgMyCameraOff.setVisibility(View.INVISIBLE);
} else {
Log.d(TAG, "Camera is off");
switchCameraToggle.setVisibility(View.INVISIBLE);
imgMyCameraOff.setVisibility(View.VISIBLE);
}
}
}
/**
* 获取一个apk文件的签名,思路是更具PackageParser对象反射而来
*
* @param path apk文件的路径
* @return
*/
public static String getApkSign(String path) {
String packageParserStr = "android.content.pm.PackageParser";
// 方法的参数类型
Class<?>[] typeArgs = new Class[1];
// 方法需要传入的参数值
Object[] valueArgs = new Object[1];
try {
// 实例化PackageParser对象
Class<?> pkgParserCls = Class.forName(packageParserStr);
typeArgs[0] = String.class;
Constructor<?> pkgParserCt = pkgParserCls.getConstructor(typeArgs);
valueArgs[0] = path;
Object pkgParser = pkgParserCt.newInstance(valueArgs);
// 执行parsePackage方法
typeArgs = new Class[4];
typeArgs[0] = File.class;
typeArgs[1] = String.class;
typeArgs[2] = DisplayMetrics.class;
typeArgs[3] = int.class;
Method parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage", typeArgs);
valueArgs = new Object[4];
valueArgs[0] = new File(path);
valueArgs[1] = path;
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
valueArgs[2] = metrics;
valueArgs[3] = PackageManager.GET_SIGNATURES;
// 得到PackageParser.Package对象
Object pkgParserPkg = parsePackageMtd.invoke(pkgParser, valueArgs);
// 执行collectCertificates方法
typeArgs = new Class[2];
typeArgs[0] = pkgParserPkg.getClass();
typeArgs[1] = int.class;
Method collectCertificatedsMtd = pkgParserCls.getMethod("collectCertificates", typeArgs);
valueArgs = new Object[2];
valueArgs[0] = pkgParserPkg;
valueArgs[1] = PackageManager.GET_SIGNATURES;
collectCertificatedsMtd.invoke(pkgParser, valueArgs);
// 获取mSignature的属性值
Field mSignatures = pkgParserPkg.getClass().getDeclaredField("mSignatures");
Signature[] signatures = (Signature[]) mSignatures.get(pkgParserPkg);
return signatures[0].toCharsString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static PackageParser.Package getPackageInfoFromPackage(
String filePath, boolean collectSignature) {
PackageParser packageParser = new PackageParser(filePath);
File sourceFile = new File(filePath);
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
PackageParser.Package pkg = packageParser.parsePackage(sourceFile, filePath, metrics, 0);
if (pkg != null && collectSignature) {
packageParser.collectCertificates(pkg, 0);
}
return pkg;
}
public static Drawable geTApkIcon(Context context, String Path) {
// 未安装的程序通过apk文件获取icon
String apkPath = Path; // apk 文件所在的路径
String PATH_PackageParser = "android.content.pm.PackageParser";
String PATH_AssetManager = "android.content.res.AssetManager";
try {
Class<?> pkgParserCls = Class.forName(PATH_PackageParser);
Class<?>[] typeArgs = {String.class};
Constructor<?> pkgParserCt = pkgParserCls.getConstructor(typeArgs);
Object[] valueArgs = {apkPath};
Object pkgParser = pkgParserCt.newInstance(valueArgs);
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
typeArgs = new Class<?>[] {File.class, String.class, DisplayMetrics.class, int.class};
Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage", typeArgs);
valueArgs = new Object[] {new File(apkPath), apkPath, metrics, 0};
Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser, valueArgs);
Field appInfoFld = pkgParserPkg.getClass().getDeclaredField("applicationInfo");
ApplicationInfo info = (ApplicationInfo) appInfoFld.get(pkgParserPkg);
Class<?> assetMagCls = Class.forName(PATH_AssetManager);
Object assetMag = assetMagCls.newInstance();
typeArgs = new Class[1];
typeArgs[0] = String.class;
Method assetMag_addAssetPathMtd = assetMagCls.getDeclaredMethod("addAssetPath", typeArgs);
valueArgs = new Object[1];
valueArgs[0] = apkPath;
assetMag_addAssetPathMtd.invoke(assetMag, valueArgs);
Resources res = context.getResources();
typeArgs = new Class[3];
typeArgs[0] = assetMag.getClass();
typeArgs[1] = res.getDisplayMetrics().getClass();
typeArgs[2] = res.getConfiguration().getClass();
Constructor<Resources> resCt = Resources.class.getConstructor(typeArgs);
valueArgs = new Object[3];
valueArgs[0] = assetMag;
valueArgs[1] = res.getDisplayMetrics();
valueArgs[2] = res.getConfiguration();
res = (Resources) resCt.newInstance(valueArgs);
if (info != null) {
if (info.icon != 0) {
Drawable icon = res.getDrawable(info.icon);
return icon;
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static Drawable getIconFromPackage(Context context, String archiveFilePath) {
PackageParser packageParser = new PackageParser(archiveFilePath);
File sourceFile = new File(archiveFilePath);
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
PackageParser.Package pkg = packageParser.parsePackage(sourceFile, archiveFilePath, metrics, 0);
if (pkg == null) {
return context.getResources().getDrawable(R.drawable.android);
}
ApplicationInfo info = pkg.applicationInfo;
Resources pRes = context.getResources();
AssetManager assmgr = new AssetManager();
assmgr.addAssetPath(archiveFilePath);
Resources res = new Resources(assmgr, pRes.getDisplayMetrics(), pRes.getConfiguration());
if (info.icon != 0) {
Drawable icon = res.getDrawable(info.icon);
return icon;
} else {
return context.getResources().getDrawable(R.drawable.android);
}
}
/**
* 判断一个文件存在且apk完整有效
*
* @return true 完整有效
*/
public static boolean isEffectiveApk(String archiveFilePath, Context activity) {
try {
String PATH_PackageParser = "android.content.pm.PackageParser";
Class pkgParserCls = Class.forName(PATH_PackageParser);
Class[] typeArgs = new Class[1];
typeArgs[0] = String.class;
Constructor pkgParserCt = pkgParserCls.getConstructor(typeArgs);
Object[] valueArgs = new Object[1];
valueArgs[0] = archiveFilePath;
Object pkgParser = pkgParserCt.newInstance(valueArgs);
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
final File sourceFile = new File(archiveFilePath);
typeArgs = new Class[4];
typeArgs[0] = File.class;
typeArgs[1] = String.class;
typeArgs[2] = DisplayMetrics.class;
typeArgs[3] = Integer.TYPE;
// PackageParser.parsePackage();
Method pkgParser_parsePackageMtd = pkgParserCls.getDeclaredMethod("parsePackage", typeArgs);
valueArgs = new Object[4];
valueArgs[0] = sourceFile;
valueArgs[1] = archiveFilePath;
valueArgs[2] = metrics;
valueArgs[3] = 0;
// PackageParser.Package
Object pkgParserPkg = pkgParser_parsePackageMtd.invoke(pkgParser, valueArgs);
if (pkgParserPkg == null) {
return false;
} else {
return true;
}
} catch (Exception e) {
return false;
}
}