我试图保存一个名称取决于输入的UIDocument。在下面的简单示例中，我使用了Text Field（nameText.text）中的文本。截至目前，代码正在创建一个空白文档（可能是一个单独的问题）但它只创建一个名称为＃34;无标题6＆＃34;，＆＃34;无标题7＆＃34;等等的文档。
Build Date: 2018-06-11 15:45:50 +0000
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PLUGIN OUTPUT
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Fetching plugin "cordova-plugin-file@4.3.3" via npm
Installing "cordova-plugin-file" at "4.3.3" for android
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Installing "cordova-plugin-compat" at "1.2.0" for android
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"<preference name="AndroidPersistentFileLocation" value="Compatibility" />"
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Subproject Path: CordovaLib
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Dependent plugin "cordova-plugin-file" already installed on android.
Plugin dependency "cordova-plugin-compat@1.2.0" already fetched, using that version.
Dependent plugin "cordova-plugin-compat" already installed on android.
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PROJECT PROPERTIES
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# This file is automatically generated by Android Tools.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must be checked in Version Control Systems.
#
# To customize properties used by the Ant build system edit
# "ant.properties", and override values to adapt the script to your
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#
# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
# Project target.
target=android-25
android.library.reference.1=CordovaLib
cordova.system.library.1=com.android.support:support-v4:24.1.1+
cordova.gradle.include.1=phonegap-plugin-push/moodle-push.gradle
cordova.system.library.2=com.android.support:support-v13:23+
cordova.system.library.3=com.google.android.gms:play-services-gcm:9.8+
cordova.system.library.4=me.leolin:ShortcutBadger:1.1.11@aar
cordova.system.library.5=com.android.support:support-v4:27.1.0
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COMPILE OUTPUT
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Subproject Path: CordovaLib
Running command: /project/gradlew cdvBuildDebug -b /project/build.gradle -Dorg.gradle.daemon=true -Dorg.gradle.jvmargs=-Xmx2048m -Pandroid.useDeprecatedNdk=true
The Task.leftShift(Closure) method has been deprecated and is scheduled to be removed in Gradle 5.0. Please use Task.doLast(Action) instead.
at build_4vswg8l01ivt4x0mvr9cvmwol.run(/project/build.gradle:138)
The JavaCompile.setDependencyCacheDir() method has been deprecated and is scheduled to be removed in Gradle 4.0.
Incremental java compilation is an incubating feature.
The TaskInputs.source(Object) method has been deprecated and is scheduled to be removed in Gradle 4.0. Please use TaskInputs.file(Object).skipWhenEmpty() instead.
The ProjectDependency.getProjectConfiguration() method has been deprecated and is scheduled to be removed in Gradle 4.0.
ModuleDependency.getConfiguration() has been deprecated and is scheduled to be removed in Gradle 4.0. Use ModuleDependency.getTargetConfiguration() instead.
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'project'.
> Could not resolve all dependencies for configuration ':_debugApkCopy'.
> Could not find com.android.support:support-v4:27.1.0.
Required by:
project :
> Could not find com.android.support:support-v4:27.1.0.
Required by:
project :
> Could not find com.android.support:support-v4:27.1.0.
Required by:
project : > com.android.support:support-v13:23.4.0
> Could not find com.android.support:support-v4:27.1.0.
Required by:
project : > com.google.android.gms:play-services-gcm:9.8.0 > com.google.android.gms:play-services-basement:9.8.0
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 1.363 secs
Command finished with error code 1: /project/gradlew cdvBuildDebug,-b,/project/build.gradle,-Dorg.gradle.daemon=true,-Dorg.gradle.jvmargs=-Xmx2048m,-Pandroid.useDeprecatedNdk=true
Error: /project/gradlew: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'project'.
> Could not resolve all dependencies for configuration ':_debugApkCopy'.
> Could not find com.android.support:support-v4:27.1.0.
Required by:
project :
> Could not find com.android.support:support-v4:27.1.0.
Required by:
project :
> Could not find com.android.support:support-v4:27.1.0.
Required by:
project : > com.android.support:support-v13:23.4.0
> Could not find com.android.support:support-v4:27.1.0.
Required by:
project : > com.google.android.gms:play-services-gcm:9.8.0 > com.google.android.gms:play-services-basement:9.8.0
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
at ChildProcess.whenDone (/project/cordova/node_modules/cordova-common/src/superspawn.js:169:23)
at emitTwo (events.js:106:13)
at ChildProcess.emit (events.js:191:7)
at maybeClose (internal/child_process.js:877:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
编辑：
我通过添加.appendingPathExtension并将其与.appendingPathComponent一起使用取得了一些进展，如下所示。还在测试。
@IBAction func saveDocument(_ sender: UIButton? = nil) {
print("...saving...")
newUrl = try? FileManager.default.url(
for: .documentDirectory,
in: .userDomainMask,
appropriateFor: nil, create: true
).appendingPathComponent(nameText.text!+".json")
let document = CRDocument(fileURL: newUrl!)
document.cR = cR
document.updateChangeCount(.done)
document.save(to: newUrl!, for: .forCreating)
}