-2
我在意圖類之間傳遞變量。我有以下的代碼可以正常工作當意圖傳遞變量時強制關閉
public void onClick(View v) {
// TODO Auto-generated method stub
//startActivity(new Intent("com.th3ramr0d.prtmanager.ONEWEEKDAYTWO"));
//VARIABLES FOR DAY 1
EditText d1instructor = (EditText) findViewById(R.id.wkOneDayOneInstructorName);
String day1_inst = d1instructor.getText().toString();
EditText d1uniform = (EditText) findViewById(R.id.wkOneDayOneUniform);
String day1_uniform = d1uniform.getText().toString();
EditText d1location = (EditText) findViewById(R.id.wkOneDayOneLocation);
String day1_location = d1location.getText().toString();
TimePicker d1hrtime = (TimePicker) findViewById(R.id.wkOneDayOneTime_Picker);
int d1hours = d1hrtime.getCurrentHour();
TimePicker d1mintime = (TimePicker) findViewById(R.id.wkOneDayOneTime_Picker);
int d1min = d1mintime.getCurrentMinute();
Spinner dOnex1 = (Spinner) findViewById(R.id.wkOneDayOneexOne);
String d1x1 = (String) dOnex1.getSelectedItem().toString();
Spinner dOnex2 = (Spinner) findViewById(R.id.wkOneDayOneexTwo);
String d1x2 = (String) dOnex2.getSelectedItem().toString();
Spinner dOnex3 = (Spinner) findViewById(R.id.wkOneDayOneexThree);
String d1x3 = (String) dOnex3.getSelectedItem().toString();
Spinner dOnex4 = (Spinner) findViewById(R.id.wkOneDayOneexFour);
String d1x4 = (String) dOnex4.getSelectedItem().toString();
//PASS CHOSEN DATE
int day = getIntent().getExtras().getInt("day");
String month = getIntent().getStringExtra("month");
int year = getIntent().getExtras().getInt("year");
String dayofweek = getIntent().getStringExtra("dayofweek");
//PASS VARIABLES WITH INTENT
Intent intent = new Intent (OneWeekPlan_Start_Btn.this, Week1Day2.class);
//PASS VARIABLES FOR DATE SET
intent.putExtra("day", day);
intent.putExtra("month", month);
intent.putExtra("year", year);
intent.putExtra("dayofweek", dayofweek);
//PASS VARIABLES FOR DAY 1
intent.putExtra("day1_inst", day1_inst);
intent.putExtra("day1_uniform", day1_uniform);
intent.putExtra("day1_location", day1_location);
intent.putExtra("d1hours", d1hours);
intent.putExtra("d1min", d1min);
intent.putExtra("d1x1", d1x1);
intent.putExtra("d1x2", d1x2);
intent.putExtra("d1x3", d1x3);
intent.putExtra("d1x4", d1x4);
startActivity(intent);
權PASS所選日期評論我進入
//VARIABLES FOR DAY 2
EditText d2instructor = (EditText) findViewById(R.id.wkOneDayTwoInstructorName);
String day2_inst = d2instructor.getText().toString();
，然後添加只是startActivity（意向）以上的意圖以上;
//PASS VARIABLES FOR DAY 2
intent.putExtra("day2_inst", day2_inst);
添加最後2個代碼塊後，當我按下按鈕時，它強制關閉。
logcat的
11-22 18:38:04.385: D/AndroidRuntime(31952): Shutting down VM
11-22 18:38:04.385: W/dalvikvm(31952): threadid=1: thread exiting with uncaught exception
(group=0x415f6ba8)
11-22 18:38:04.395: E/AndroidRuntime(31952): FATAL EXCEPTION: main
11-22 18:38:04.395: E/AndroidRuntime(31952): Process: com.th3ramr0d.prtmanager, PID: 31952
11-22 18:38:04.395: E/AndroidRuntime(31952): java.lang.NullPointerException
11-22 18:38:04.395: E/AndroidRuntime(31952): at
com.th3ramr0d.prtmanager.OneWeekPlan_Start_Btn$1.onClick(OneWeekPlan_Start_Btn.java:60)
11-22 18:38:04.395: E/AndroidRuntime(31952): at android.view.View.performClick(View.java:4438)
11-22 18:38:04.395: E/AndroidRuntime(31952): at
android.view.View$PerformClick.run(View.java:18422)
11-22 18:38:04.395: E/AndroidRuntime(31952): at
android.os.Handler.handleCallback(Handler.java:733)
11-22 18:38:04.395: E/AndroidRuntime(31952): at
android.os.Handler.dispatchMessage(Handler.java:95)
11-22 18:38:04.395: E/AndroidRuntime(31952): at android.os.Looper.loop(Looper.java:136)
11-22 18:38:04.395: E/AndroidRuntime(31952): at
android.app.ActivityThread.main(ActivityThread.java:5001)
11-22 18:38:04.395: E/AndroidRuntime(31952): at java.lang.reflect.Method.invokeNative(Native
Method)
11-22 18:38:04.395: E/AndroidRuntime(31952): at
java.lang.reflect.Method.invoke(Method.java:515)
11-22 18:38:04.395: E/AndroidRuntime(31952): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
11-22 18:38:04.395: E/AndroidRuntime(31952): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
11-22 18:38:04.395: E/AndroidRuntime(31952): at dalvik.system.NativeStart.main(Native Method)
11-22 18:38:05.846: I/Process(31952): Sending signal. PID: 31952 SIG: 9
11-22 18:38:06.117: I/Adreno-EGL(32079): <qeglDrvAPI_eglInitialize:320>: EGL 1.4 QUALCOMM Build:
I0404c4692afb8623f95c43aeb6d5e13ed4b30ddbDate: 11/06/13
11-22 18:38:06.147: D/OpenGLRenderer(32079): Enabling debug mode 0