的Android未捕獲的異常創建的SimpleDateFormat對象

Question

我正在試圖調用 SimpleDateFormat的構造函數時未捕獲的異常時：

String test = "Thu Feb 02 00:00:00 EST 2017"; 
SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd hh:mm:ss Z yyyy"); 

堆棧跟蹤爲：

02-15 15:55:31.999 27669-27669/com.clackityclack.parseproject W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x40e76300) 02-15 15:55:32.077 27669-27669/com.clackityclack.parseproject E/AndroidRuntime: FATAL EXCEPTION: main java.lang.IllegalStateException: Could not execute method for android:onClick at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293) at android.view.View.performClick(View.java:4084) at android.view.View$PerformClick.run(View.java:16966) at android.os.Handler.handleCallback(Handler.java:615) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4745) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288) at android.view.View.performClick(View.java:4084)  at android.view.View$PerformClick.run(View.java:16966)  at android.os.Handler.handleCallback(Handler.java:615)  at android.os.Handler.dispatchMessage(Handler.java:92)  at android.os.Looper.loop(Looper.java:137)  at android.app.ActivityThread.main(ActivityThread.java:4745)  at java.lang.reflect.Method.invokeNative(Native Method)  at java.lang.reflect.Method.invoke(Method.java:511)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)  at dalvik.system.NativeStart.main(Native Method)  Caused by: java.lang.NoClassDefFoundError: android.icu.text.SimpleDateFormat at com.clackityclack.parseproject.childAddActivity.done(childAddActivity.java:69) at java.lang.reflect.Method.invokeNative(Native Method)  at java.lang.reflect.Method.invoke(Method.java:511)  at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)  at android.view.View.performClick(View.java:4084)  at android.view.View$PerformClick.run(View.java:16966)  at android.os.Handler.handleCallback(Handler.java:615)  at android.os.Handler.dispatchMessage(Handler.java:92)  at android.os.Looper.loop(Looper.java:137)  at android.app.ActivityThread.main(ActivityThread.java:4745)  at java.lang.reflect.Method.invokeNative(Native Method)  at java.lang.reflect.Method.invoke(Method.java:511)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)  at dalvik.system.NativeStart.main(Native Method) 

的進口：

import android.app.DatePickerDialog; import android.app.DialogFragment; import android.content.Context; import android.content.Intent; import android.icu.text.SimpleDateFormat; import android.os.Build; import android.support.annotation.RequiresApi; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.KeyEvent; import android.view.View; import android.view.inputmethod.InputMethodManager; import android.widget.DatePicker; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast;

import com.parse.ParseException; import com.parse.ParseObject; import com.parse.SaveCallback;

import java.io.IOException; import java.sql.SQLException; import java.util.Date; */

import android.app.DatePickerDialog; import android.app.DialogFragment; import android.content.Context; import android.content.Intent; import android.icu.text.SimpleDateFormat; import android.os.Build; import android.support.annotation.RequiresApi; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.KeyEvent; import android.view.View; import android.view.inputmethod.InputMethodManager; import android.widget.DatePicker; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast;

import com.parse.ParseException; import com.parse.ParseObject; import com.parse.SaveCallback;

import java.io.IOException; import java.sql.SQLException; import java.util.Date;

Answer 1

刪除此項導入import android.icu.text.SimpleDateFormat;

而是用import java.text.SimpleDateFormat;代替。