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나는 앱을 가지고 있으며 편집 텍스트를 계산하려고합니다. 이 코드가 있습니다Android - edittext에서 텍스트를 가져 와서 계산하는 방법
package com.minimale.cijfer;
import android.app.Activity;
import android.os.Bundle;
import android.text.InputType;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import com.minimale.cijfer.R;
public class main extends Activity {
/** Called when the activity is first created. */
EditText gehaald_een;
EditText gehaald_twee;
EditText gehaald_drie;
EditText gehaald_een_weging;
EditText gehaald_twee_weging;
EditText gehaald_drie_weging;
EditText nieuw;
EditText nieuw_weging;
EditText finalResult;
OnClickListener radioGroup;
double een;
double twee;
double drie;
double vier;
double een_c;
double twee_c;
double drie_c;
double nieuw_c;
double weging_t;
double answer;
Button addButton;
Button divideButton;
Button multiplyButton;
Button subtractButton;
Button final_calculation;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
gehaald_een = (EditText)findViewById(R.id.editText1);
gehaald_twee = (EditText)findViewById(R.id.editText2);
gehaald_drie = (EditText)findViewById(R.id.editText3);
gehaald_een_weging = (EditText)findViewById(R.id.editText4);
gehaald_twee_weging = (EditText)findViewById(R.id.editText5);
gehaald_drie_weging = (EditText)findViewById(R.id.editText6);
finalResult = (EditText)findViewById(R.id.answer);
nieuw = (EditText)findViewById(R.id.editText7);
nieuw_weging = (EditText)findViewById(R.id.editText8);
divideButton =(Button)findViewById(R.id.button1);
divideButton.setOnClickListener(new DivideButtonHandler());
}
private class DivideButtonHandler implements OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
een = Double.parseDouble(gehaald_een_weging.getText().toString());
twee = Double.parseDouble(gehaald_twee_weging.getText().toString());
drie = Double.parseDouble(gehaald_drie_weging.getText().toString());
vier = Double.parseDouble(nieuw_weging.getText().toString());
een_c = Double.parseDouble(gehaald_een.getText().toString());
twee_c = Double.parseDouble(gehaald_twee.getText().toString());
drie_c = Double.parseDouble(gehaald_drie.getText().toString());
nieuw_c = Double.parseDouble(nieuw.getText().toString());
weging_t = Double.parseDouble(nieuw_weging.getText().toString());
answer = ((een + twee + drie + vier) * nieuw_c - ((een_c * een) + (twee * twee_c))/weging_t);
finalResult.setText(answer + "");
}
}
}
을하지만 버튼에 내 응용 프로그램을 실행하고있는 글고 상자를 작성 누르면, 내 응용 프로그램 강제 종료합니다. 아무도 내가 뭘 잘못했는지 알아?
와
교체 Logcat 출력에 나타나는 stacktrace? –
@Graham Borland 나는 지금 내가 어떻게 볼 수있는, 내 PC에 이클립스와 2 일 우분투가 있고 그것은 윈도우 이클립 – Gromdroid
ur ur main.xml과 다릅니다. 내가 뭔가를 잘못 했어야했다. 나는 ur 코드를 사용했기 때문에 나에게 잘 돌아갔다. logcat 출력을 보려면 ur cmd 프롬프트에서 adb logcat 명령을 실행하십시오. http://developer.android.com/guide/developing/tools/adb.html#logcat – Rohit