CropImage.java 文件源码

/**
 * Check if the app requests a specific permission in the manifest.
 *
 * @param permissionName the permission to check
 * @return true - the permission in requested in manifest, false - not.
 */
public static boolean hasPermissionInManifest(@NonNull Context context, @NonNull String permissionName) {
    String packageName = context.getPackageName();
    try {
        PackageInfo packageInfo = context.getPackageManager().getPackageInfo(packageName, PackageManager.GET_PERMISSIONS);
        final String[] declaredPermisisons = packageInfo.requestedPermissions;
        if (declaredPermisisons != null && declaredPermisisons.length > 0) {
            for (String p : declaredPermisisons) {
                if (p.equalsIgnoreCase(permissionName)) {
                    return true;
                }
            }
        }
    } catch (PackageManager.NameNotFoundException e) {
    }
    return false;
}