버튼을 클릭하여 의도 한 다른 활동으로 데이터 보내기

Question

사용자가 "제출"버튼을 클릭하면 HomeActivity에 어린이 프로필을 설정하고 싶습니다. 나는 모든 데이터를 데이터베이스에 저장하고 있으며 작동 중입니다. 그러나 "제출"버튼을 클릭하면 응용 프로그램이 충돌합니다. 데이터는 KidsProfileActivity에서 HomeActivity으로 전달되지 않습니다.

KidsProfileActivity.java

btnSubmit.setOnClickListener(new View.OnClickListener() { 

    @Override 
    public void onClick(View arg0) { 

     strKidsName = edtKidsName.getText().toString(); 
     strKidsBirthDate = edtKidsBirthDate.getText().toString(); 
     strKidsBirthTime = edtKidsBirthTime.getText().toString(); 
     strKidsWeight = edtKidsWeight.getText().toString(); 
     strKidsHeight = edtKidsHeight.getText().toString(); 
     strKidsHeadCircumference = edtKidsHeadCircumference.getText() 
       .toString(); 
     strHealthStatus = spHealthStatus.getSelectedItem().toString(); 

     if (rbtnBoy.isChecked()) { 
      strGenderValue = "Boy"; 
     } else { 
      strGenderValue = "Girl"; 
     } 

     if (strKidsName.equals("")) { 
      ting("Please Enter Kids"); 
     } else if (strKidsBirthDate.equals("")) { 
      ting("Please Enter BirthDate"); 
     } else if (strKidsBirthTime.equals("")) { 
      ting("Please Enter BirthTime"); 
     } else if (strKidsHeight.equals("")) { 
      ting("Please Enter Weight"); 
     } else if (strKidsWeight.equals("")) { 
      ting("Please Enter Weight"); 
     } else if (strKidsHeadCircumference.equals("")) { 
      ting("Please Enter HeadCircumference"); 
     } 

     else if (strHealthStatus.equals("")) { 
      ting("Please Select HealthStatus"); 
     } 

     else { 
      masterDatabaseAdapter.kidsProfileEntry(strKidsName, 
        strKidsBirthDate, strKidsBirthTime, strGenderValue, 
        strKidsHeight, strKidsWeight, 
        strKidsHeadCircumference, strHealthStatus); 
      Intent displaykidsProfile = new Intent(
        KidsProfileActivity.this, HomeActivity.class); 

      displaykidsProfile.putExtra("kidsname", strKidsName); 
      displaykidsProfile.putExtra("birthdate", strKidsBirthDate); 
      displaykidsProfile.putExtra("birthtime", strKidsBirthTime); 
      displaykidsProfile.putExtra("height", strKidsHeight); 
      displaykidsProfile.putExtra("weight", strKidsWeight); 
      displaykidsProfile.putExtra("head", 
        strKidsHeadCircumference); 
      displaykidsProfile.putExtra("health", strHealthStatus); 

      startActivity(displaykidsProfile); 
     } 

HomeActivity.java

myIntent = getIntent(); 
if (myIntent.hasExtra("kidsname") && myIntent.hasExtra("birthdate") 
     && myIntent.hasExtra("birthtime") 
     && myIntent.hasExtra("height") && myIntent.hasExtra("weight")&& myIntent.hasExtra("head")&& myIntent.hasExtra("health")) 
{ 

    tvKidsName.setText(myIntent.getStringExtra("kidsname")); 
    tvKidsBirthDate.setText(myIntent.getStringExtra("birthdate")); 
    tvKidsBirthTime.setText(myIntent.getStringExtra("birthtime")); 
    tvKidsHeight.setText(myIntent.getStringExtra("height")); 
    tvKidsWeight.setText(myIntent.getStringExtra("weight")); 
    tvKidsHeadCircumference.setText(myIntent.getStringExtra("head")); 
    tvHealthStatus.setText(myIntent.getStringExtra("health")); 

} else { 
    showAlert("Enter Kids Profile First"); 
} 

로그 캣

05-15 11:28:22.016: E/AndroidRuntime(1508): FATAL EXCEPTION: main 
05-15 11:28:22.016: E/AndroidRuntime(1508): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.slidingmenuexample/com.example.kidsfinal.HomeActivity}: java.lang.NullPointerException 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.app.ActivityThread.access$600(ActivityThread.java:130) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.os.Handler.dispatchMessage(Handler.java:99) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.os.Looper.loop(Looper.java:137) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.app.ActivityThread.main(ActivityThread.java:4745) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at java.lang.reflect.Method.invokeNative(Native Method) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at java.lang.reflect.Method.invoke(Method.java:511) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at dalvik.system.NativeStart.main(Native Method) 
05-15 11:28:22.016: E/AndroidRuntime(1508): Caused by: java.lang.NullPointerException 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at com.example.kidsfinal.HomeActivity.initComponent(HomeActivity.java:74) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at com.example.kidsfinal.HomeActivity.onCreate(HomeActivity.java:37) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.app.Activity.performCreate(Activity.java:5008) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 
05-15 11:28:22.016: E/AndroidRuntime(1508):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 

Answer 1

 Bundle myIntent = getIntent().getExtras(); 

if (myIntent.hasExtra("kidsname") && myIntent.hasExtra("birthdate") 
     && myIntent.hasExtra("birthtime") 
     && myIntent.hasExtra("height") && myIntent.hasExtra("weight")&& myIntent.hasExtra("head")&& myIntent.hasExtra("health")) 
{ 

    tvKidsName.setText(myIntent.getStringExtra("kidsname")); 
    tvKidsBirthDate.setText(myIntent.getStringExtra("birthdate")); 
    tvKidsBirthTime.setText(myIntent.getStringExtra("birthtime")); 
    tvKidsHeight.setText(myIntent.getStringExtra("height")); 
    tvKidsWeight.setText(myIntent.getStringExtra("weight")); 
    tvKidsHeadCircumference.setText(myIntent.getStringExtra("head")); 
    tvHealthStatus.setText(myIntent.getStringExtra("health")); 

} else { 
    showAlert("Enter Kids Profile First"); 
} 

.

문제점 의도 라인 얻을이다

번들 myIntent = getIntent()를 getExtras();

대신

myIntent = getIntent()를;

나는 당신에게 유용 할 것입니다.

Answer 2

당신은 의도로부터 엑스트라를 얻어야합니다. getIntent(). getExtras()를 시도하고 계속하십시오.