'개발자/Android'에 해당되는 글 3건

package com.bill.hello;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends Activity {

private Button button1,button2,button3,button4,button5,button6,button7,button8,button9,button10,button11,button12,button13,button14,button15,button16;

private TextView text;

private EditText edit;

private int a;

private int where=0;

@Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

          setContentView(R.layout.activity_main);

          Toast.makeText(getApplicationContext(), "welcome", Toast.LENGTH_SHORT).show();

          button1 = (Button)findViewById(R.id.button1);

          button2 = (Button)findViewById(R.id.button2);

          button3 = (Button)findViewById(R.id.button3);

          button4 = (Button)findViewById(R.id.button4);

          button5 = (Button)findViewById(R.id.button5);

          button6 = (Button)findViewById(R.id.button6);

          button7 = (Button)findViewById(R.id.button7);

          button8 = (Button)findViewById(R.id.button8);

          button9 = (Button)findViewById(R.id.button9);

          button10 = (Button)findViewById(R.id.button10);

          button11 = (Button)findViewById(R.id.button11);

          button12 = (Button)findViewById(R.id.button12);

          button13 = (Button)findViewById(R.id.button13);

          button14 = (Button)findViewById(R.id.button14);

          button15 = (Button)findViewById(R.id.button15);

          button16 = (Button)findViewById(R.id.button16);

          text = (TextView)findViewById(R.id.t1);

          edit = (EditText)findViewById(R.id.e1);

          OnClickListener cl = new OnClickListener(){

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

if(v==button1){

edit.setText(edit.getText().toString()+1);

}

else if(v==button2){

edit.setText(edit.getText().toString()+2);

}

else if(v==button3){

edit.setText(edit.getText().toString()+3);

}

else if(v==button4){

// +  부분

a = Integer.valueOf(edit.getText().toString().trim());

edit.setText("");

where =1;

}

else if(v==button5){

edit.setText(edit.getText().toString()+4);

}

else if(v==button6){

edit.setText(edit.getText().toString()+5);

}

else if(v==button7){

edit.setText(edit.getText().toString()+6);

}

else if(v==button8){

//-

a = Integer.valueOf(edit.getText().toString().trim());

edit.setText("");

where =2;

}

else if(v==button9){

edit.setText(edit.getText().toString()+7);

}

else if(v==button10){

edit.setText(edit.getText().toString()+8);

}

else if(v==button11){

edit.setText(edit.getText().toString()+9);

}

else if(v==button12){

//*

a = Integer.valueOf(edit.getText().toString().trim());

edit.setText("");

where =3;

}

else if(v==button13){

edit.setText(edit.getText().toString()+0);

}

else if(v==button14){

//=

if(where==1){

a = a + Integer.valueOf(edit.getText().toString().trim());

edit.setText(Integer.toString(a));

}

else if(where==2){

a = a - Integer.valueOf(edit.getText().toString().trim());

edit.setText(Integer.toString(a));

}

else if(where==3){

a = a * Integer.valueOf(edit.getText().toString().trim());

edit.setText(Integer.toString(a));

}

else if(where==4){

a = a / Integer.valueOf(edit.getText().toString().trim());

edit.setText(Integer.toString(a));

}

}

else if(v==button15){

//C

edit.setText("");

}

else if(v==button16){

// /

a = Integer.valueOf(edit.getText().toString().trim());

edit.setText("");

where =4;

}

}

};

      button1.setOnClickListener(cl);

      button2.setOnClickListener(cl);

      button3.setOnClickListener(cl);

      button4.setOnClickListener(cl);

      button5.setOnClickListener(cl);

      button6.setOnClickListener(cl);

      button7.setOnClickListener(cl);

      button8.setOnClickListener(cl);

      button9.setOnClickListener(cl);

      button10.setOnClickListener(cl);

      button11.setOnClickListener(cl);

      button12.setOnClickListener(cl);

      button13.setOnClickListener(cl);

      button14.setOnClickListener(cl);

      button15.setOnClickListener(cl);

      button16.setOnClickListener(cl);

}

}

          Log.i("test","info");        - 녹색 

          Log.e("test","erro");       - 빨강

          Log.w("test","warning");  - 주황

          Log.d("test","debug");      - 남색

i e w d 에 따라 색깔이 다르다.

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

          setContentView(R.layout.activity_main);

          Toast.makeText(getApplicationContext(), "onCreate()", Toast.LENGTH_SHORT).show();

      }

@Override

protected void onDestroy() {

// TODO Auto-generated method stub

super.onDestroy();

        Toast.makeText(getApplicationContext(), "onDestroy()", Toast.LENGTH_SHORT).show();

}

@Override

protected void onPause() {

// TODO Auto-generated method stub

super.onPause();

        Toast.makeText(getApplicationContext(), "onPause()", Toast.LENGTH_SHORT).show();

}

@Override

protected void onRestart() {

// TODO Auto-generated method stub

super.onRestart();

        Toast.makeText(getApplicationContext(), "onRestart()", Toast.LENGTH_SHORT).show();

}

@Override

protected void onResume() {

// TODO Auto-generated method stub

super.onResume();

        Toast.makeText(getApplicationContext(), "onResume()", Toast.LENGTH_SHORT).show();

}

@Override

protected void onStart() {

// TODO Auto-generated method stub

super.onStart();

        Toast.makeText(getApplicationContext(), "onStart()", Toast.LENGTH_SHORT).show();

}

@Override

protected void onStop() {

// TODO Auto-generated method stub

super.onStop();

        Toast.makeText(getApplicationContext(), "onStop()", Toast.LENGTH_SHORT).show();

}

7가지의 생명주기를 눈으로 확인해 볼 수 있다.

onDestroy 는 finish 하여야 종료가 된다.