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我有两个弦乐时间。我怎样才能得到这两个时间之间的持续时间?我尝试使用DateTimeFormatter,但它不起作用。
val startTime = LocalDate.parse("19:30", DateTimeFormatter.ofPattern("HH:mm"))
val endTime = LocalDate.parse("20:30", DateTimeFormatter.ofPattern("HH:mm"))
val newDate = Period.between(startTime, endTime)
我认为它需要将两个日期转换为米利斯,然后做减法。但我不知道该怎么做!你的建议,好吗?!
错误信息:
进程:com.example.leetcodedraft,PID:23723
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.leetcodedraft/com.example.leetcodedraft.MainActivity}: java.time.format.DateTimeParseException: Text '19:30' could not be parsed: Unable to obtain LocalDate from TemporalAccessor: {},ISO resolved to 19:30 of type java.time.format.Parsed
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.time.format.DateTimeParseException: Text '19:30' could not be parsed: Unable to obtain LocalDate from TemporalAccessor: {},ISO resolved to 19:30 of type java.time.format.Parsed
at java.time.format.DateTimeFormatter.createError(DateTimeFormatter.java:1920)
at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1855)
at java.time.LocalDate.parse(LocalDate.java:394)
at com.example.leetcodedraft.Test.startTest(Test.kt:16)
at com.example.leetcodedraft.MainActivity.onCreate(MainActivity.kt:36)
at android.app.Activity.performCreate(Activity.java:7136)
at android.app.Activity.performCreate(Activity.java:7127)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.time.DateTimeException: Unable to obtain LocalDate from TemporalAccessor: {},ISO resolved to 19:30 of type java.time.format.Parsed
at java.time.LocalDate.from(LocalDate.java:362)
at java.time.-$$Lambda$Bq8PKq1YWr8nyVk9SSfRYKrOu4A.queryFrom(Unknown Source:0)
at java.time.format.Parsed.query(Parsed.java:226)
at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1851)
at java.time.LocalDate.parse(LocalDate.java:394)
at com.example.leetcodedraft.Test.startTest(Test.kt:16)
at com.example.leetcodedraft.MainActivity.onCreate(MainActivity.kt:36)
at android.app.Activity.performCreate(Activity.java:7136)
at android.app.Activity.performCreate(Activity.java:7127)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
1条答案
按热度按时间wi3ka0sx1#
过了一段时间,我解决了这个问题:
接收数据的示例:“1ч.45ми н.,“2ч.",“15ми н.”谢谢你的动力,伙计们!