Error for joining text in extension

[Soham_Shah]

The extension is compiled but i get the error

Code:

public Datepicker(ComponentContainer container) {
super(container.$form());
this.container = container;
final Calendar c = Calendar.getInstance();
year = c.get(Calendar.YEAR);
javaMonth = c.get(Calendar.MONTH);
month = javaMonth + 1;
day = c.get(Calendar.DAY_OF_MONTH);
instant = Dates.DateInstant(year, month, day);
}
SimpleFunction(description = "Creates in the arrangement")
public Object CreateArrangement(AndroidViewComponent arrangement / int orientation, boolean scrollable, final boolean clickable /) {
Create(hv2,"Label","title");
title = COMPONENTS.get("title");
//((Label) title).Text("s");
((Label) title).Text(String.join(Dates.MonthName(instant)," ",(String.valueOf(Dates.Year(instant)))));
}

[ewpatton]

String.join was added to Java in Java 8, and in Android it is available starting at SDK 26 (Android 8.0). If you want to maximize backward compatibility, use TextUtils.join instead.

[vknow360]

But why to use any other method when you can easily do it using +.
"String1"+"String2" = "String1String2"

[Soham_Shah]

when i change it to
((Label) title).Text((Dates.MonthName(instant))+" "+(String.valueOf(Dates.Year(instant))));

i get error:
Buildfile: /projects/goldv2/appinventor-sources/appinventor/build.xml

extensions:

clean:

init:

common_CommonUtils:

init:

CommonUtils:

common_CommonVersion:

init:

CommonVersion:
[exec] Result: 128
[exec] Result: 128

CopyToRunLibDir:

components_AndroidRuntime:

init:
[mkdir] Created dir: /projects/goldv2/appinventor-sources/appinventor/build/components
[mkdir] Created dir: /projects/goldv2/appinventor-sources/appinventor/components/build
[mkdir] Created dir: /projects/goldv2/appinventor-sources/appinventor/co
components_AndroidRuntime:

init:

CommonConstants:
[javac] Compiling 6 source files to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/CommonConstants
[javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
[javac] 1 warning

HtmlEntities:
[javac] Compiling 1 source file to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/HtmlEntities
[javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
[javac] 1 warning

common_CommonVersion:

init:

CommonVersion:
[exec] Result: 128
[exec] Result: 128

AndroidRuntime:
[mkdir] Created dir: /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AndroidRuntime
[javac] Compiling 332 source files to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AndroidRuntime
[javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
[javac] Note: Some input files use or override a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] Note: Some input files use unchecked or unsafe operations.
[javac] Note: Recompile with -Xlint:unchecked for details.
[javac] 1 warning
[javac] Creating empty /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AndroidRuntime/com/google/appinventor/components/runtime/util/package-info.class
[javac] Creating empty /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AndroidRuntime/com/google/appinventor/components/annotations/androidmanifest/package-info.class
[javac] Creating empty /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AndroidRuntime/com/google/appinventor/components/runtime/collect/package-info.class
[javac] Creating empty /projects/goldv2/appin [javac] Note: Some input files use or override a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] Note: Some input files use unchecked or unsafe operations.
[javac] Note: Recompile with -Xlint:unchecked for details.
[javac] 1 warning

components_Barcode:

Barcode:

components_ComponentList:

init:

CommonConstants:

ComponentProcessingLib:
[depend] Deleted 6 out of date files in 0 seconds
[javac] Compiling 2 source files to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/ComponentProcessingLib
[javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
[javac] 1 warning
[javac] Creating empty /projects/goldv2/appinventor-sources/appinventor/components/build/classes/ComponentProcessingLib/com/google/appinventor/components/annotations/androidmanifest/package-info.class
[javac] Creating empty /projects/goldv2/appinventor-sources/appinventor/components/build/classes/ComponentProcessingLib/com/google/appinventor/components/annotations/package-info.class
[jar] Building jar: /projects/goldv2/appinventor-sources/appinventor/components/build/ComponentProcessingLib.jar

HtmlEntities:

common_CommonUtils:

init:

CommonUtils:

AnnotationProcessors:
[mkdir] Created dir: /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AnnotationProcessors
[javac] Compiling 7 source files to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AnnotationProcessors
[javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
[javac] Note: /projects/goldv2/appinventor-sources/appinventor/components/src/com/google/appinventor/components/scripts/ComponentProcessor.java uses or overrides a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] 1 warning
[javac] Creating empty /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AnnotationProcessors/com/google/appinventor/components/scripts/package-info.class
[copy] Copying 22 files to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AnnotationProcessors
[jar] Building jar: /projects/goldv2/appinventor-sources/appinventor/components/build/AnnotationProcessors.jar

common_CommonVersion:

init:

CommonVersion:
[exec] Result: 128
[exec] Result: 128

AndroidRuntime:
[javac] Compiling 15 source files to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/AndroidRuntime
[javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
[javac] 1 warning

Barcode:

ComponentList:
[javac] Compiling 307 source files to /projects/goldv2/appinventor-sources/appinventor/components/build/classes/ComponentList
[javac]
[javac]
[javac] An annotation processor threw an uncaught exception.
[javac] Consult the following stack trace for details.
[javac] java.lang.ClassFormatError: Truncated class file
[javac] at java.lang.ClassLoader.defineClass1(Native Method)
[javac] at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
[javac] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[javac] at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
[javac] at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
[javac] at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
[javac] at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
[javac] at java.security.AccessController.doPrivileged(Native Method)
[javac] at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
[javac] at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
[javac] at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
[javac] at java.lang.ClassLoader.defineClass1(Native Method)
[javac] at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
[javac] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[javac] at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
[javac] at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
[javac] at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
[javac] at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
[javac] at java.security.AccessController.doPrivileged(Native Method)
[javac] at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
[javac] at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
[javac] at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
[javac] at com.sun.tools.javac.processing.JavacProcessingEnvironment$NameProcessIterator.hasNext(JavacProcessingEnvironment.java:417)
[javac] at com.sun.tools.javac.processing.JavacProcessingEnvironment$DiscoveredProcessors$ProcessorStateIterator.hasNext(JavacProcessingEnvironment.java:617)
[javac] at com.sun.tools.javac.processing.JavacProcessingEnvironment.atLeastOneProcessor(JavacProcessingEnvironment.java:455)
[javac] at com.sun.tools.javac.main.JavaCompiler.initProcessAnnotations(JavaCompiler.java:1050)
[javac] at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:852)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:523)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:381)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:370)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:361)
[javac] at com.sun.tools.javac.Main.compile(Main.java:56)
[javac] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[javac] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[javac] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[javac] at java.lang.reflect.Method.invoke(Method.java:498)
[javac] at org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:58)
[javac] at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1160)
[javac] at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:936)
[javac] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
[javac] at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
[javac] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[javac] at java.lang.reflect.Method.invoke(Method.java:498)
[javac] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[javac] at org.apache.tools.ant.Task.perform(Task.java:348)
[javac] at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:68)
[javac] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
[javac] at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
[javac] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[javac] at java.lang.reflect.Method.invoke(Method.java:498)
[javac] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[javac] at org.apache.tools.ant.Task.perform(Task.java:348)
[javac] at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:396)
[javac] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
[javac] at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
[javac] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[javac] at java.lang.reflect.Method.invoke(Method.java:498)
[javac] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[javac] at org.apache.tools.ant.Task.perform(Task.java:348)
[javac] at org.apache.tools.ant.Target.execute(Target.java:435)
[javac] at org.apache.tools.ant.Target.performTasks(Target.java:456)
[javac] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405)
[javac] at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
[javac] at org.apache.tools.ant.Project.executeTargets(Project.java:1260)
[javac] at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:441)
[javac] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
[javac] at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
[javac] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[javac] at java.lang.reflect.Method.invoke(Method.java:498)
[javac] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[javac] at org.apache.tools.ant.Task.perform(Task.java:348)
[javac] at org.apache.tools.ant.Target.execute(Target.java:435)
[javac] at org.apache.tools.ant.Target.performTasks(Target.java:456)
[javac] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405)
[javac] at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
[javac] at org.apache.tools.ant.Project.executeTargets(Project.java:1260)
[javac] at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:441)
[javac] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
[javac] at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
[javac] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[javac] at java.lang.reflect.Method.invoke(Method.java:498)
[javac] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[javac] at org.apache.tools.ant.Task.perform(Task.java:348)
[javac] at org.apache.tools.ant.Target.execute(Target.java:435)
[javac] at org.apache.tools.ant.Target.performTasks(Target.java:456)
[javac] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405)
[javac] at org.apache.tools.ant.Project.executeTarget(Project.java:1376)
[javac] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[javac] at org.apache.tools.ant.Project.executeTargets(Project.java:1260)
[javac] at org.apache.tools.ant.Main.runBuild(Main.java:853)
[javac] at org.apache.tools.ant.Main.startAnt(Main.java:235)
[javac] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:285)
[javac] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:112)

BUILD FAILED
/projects/goldv2/appinventor-sources/appinventor/build.xml:35: The following error occurred while executing this line:
/projects/goldv2/appinventor-sources/appinventor/build-common.xml:404: The following error occurred while executing this line:
/projects/goldv2/appinventor-sources/appinventor/components/build.xml:495: The following error occurred while executing this line:
/projects/goldv2/appinventor-sources/appinventor/components/build.xml:306: Compile failed; see the compiler error output for details.

Total time: 13 seconds
(Launcher.java:285)
[javac] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:112)

BUILD FAILED
/projects/goldv2/appinventor-sources/appinventor/build.xml:35: The following error occurred while executing this line:
/projects/goldv2/appinventor-sources/appinventor/build-common.xml:404: The following error occurred while executing this line:
/projects/goldv2/appinventor-sources/appinventor/components/build.xml:495: The following error occurred while executing this line:
/projects/goldv2/appinventor-sources/appinventor/components/build.xml:306: Compile failed; see the compiler error output for details.

Total time: 13 seconds

[Soham_Shah]

@ewpatton

String.join was added to Java in Java 8, and in Android it is available starting at SDK 26 (Android 8.0). If you want to maximize backward compatibility, use TextUtils.join instead.

[javac] /projects/goldv2/appinventor-sources/appinventor/components/src/com/appybuilder/sohamtshah2005/Datepicker/Datepicker.java:9: error: cannot access ComponentConstants
[javac] import com.google.appinventor.components.common.ComponentConstants;
[javac] ^

when i use textutils.join method i get the error code:

replace = String.valueOf((Integer.valueOf(LAST_ID.replace("cardcal","")))+1);
Create((Arrangement_Logic(weekday)),"Label",(TextUtils.join("labelcal", (replace.toString()))));

[vknow360]

@Soham_Shah

((Label) title).Text((Dates.MonthName(instant))+" "+(String.valueOf(Dates.Year(instant))));

why there is "" between both strings?

[Soham_Shah]

it is a used to add a space @vknow360

[vknow360]

@Soham_Shah

((Label) title).Text((Dates.MonthName(instant))+" "+(String.valueOf(Dates.Year(instant))));

Some brackets can be removed:

((Label) title).Text(Dates.MonthName(instant)+" "+Dates.Year(instant).toString()));

[Soham_Shah]

@vknow360

((Label) title).Text(Dates.MonthName(instant)+" "+Dates.Year(instant).toString()));

/projects/goldv2/appinventor-sources/appinventor/components/src/com/appybuilder/sohamtshah2005/Datepicker/Datepicker.java:163: error: int cannot be dereferenced
[javac] ((Label) title).Text(Dates.MonthName(instant)+" "+Dates.Year(instant).toString());

[vknow360]

Aren't you using extension template or latest ai sources?
If so then I suggest you to use extension template.

[Soham_Shah]

@vknow360

gest you to use extension template.

what's that?

[MohamedTamer]

@Soham_Shah

what's that?

Extension Template Repository

Hi all, I have been experimenting on a new system for building extensions. This version no longer requires checking out the whole source tree of App Inventor to build an extension, which means that you can manage extensions in different repositories without a lot of overhead. The template repository is available on GitHub. I would appreciate feedback on this approach and how it is or isn’t working. Regards, Evan W. Patton, Ph.D. Lead Software Engineer, MIT App Inventor

[Soham_Shah]

Ohk so what do i need to change? And im using applybuilder code editor

[Souvik_Bera]

The shortest way I can write the code is

((Label) title).Text(Dates.MonthName(instant)+Dates.Year(instant));

And it should work regardless if its the source or extension temple