update toolkit

src/main/java/com/virjar/ratel/api/UnPackerToolKit.java

@@ -8,7 +8,6 @@ import com.virjar.ratel.api.rposed.RC_MethodHook;
 import com.virjar.ratel.api.rposed.RposedHelpers;
 
 import java.io.File;
-import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.lang.reflect.Constructor;
@@ -118,7 +117,7 @@ public class UnPackerToolKit {
      *
      * @return 一个apk文件，该文件包括代码和资源，但是没有签名，无法直接运行
      */
-    public File constructUnpackedApk() {
+    public static File constructUnpackedApk() {
         try {
             return constructUnpackedApkInternal();
         } catch (IOException e) {
@@ -129,7 +128,7 @@ public class UnPackerToolKit {
 
     public static final Pattern classesIndexPattern = Pattern.compile("classes(\\d+)\\.dex");
 
-    private File constructUnpackedApkInternal() throws IOException {
+    private static File constructUnpackedApkInternal() throws IOException {
         File workDir = RatelToolKit.ratelUnpack.getWorkDir();
         if (workDir == null || !workDir.exists()) {
             return null;