기본 형태의 프로젝트 만들기-MainActivity.java

CODEDRAGON Development/Android

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MainActivity.java

  1. 파일의 빨강색으로 마킹한 부분 삭제/수정
  2. ActionBarActivity > Activity 로 수정
  3. 마우스 우클릭 > Source > Organize Imports

   

package kr.android.helloworld;

   

import android.support.v7.app.ActionBarActivity;

import android.support.v7.app.ActionBar;

import android.support.v4.app.Fragment;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.os.Build;

   

public class MainActivity extends ActionBarActivity {

   

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

   

if (savedInstanceState == null) {

getSupportFragmentManager().beginTransaction()

.add(R.id.container, new PlaceholderFragment())

.commit();

}

}

   

   

@Override

public boolean onCreateOptionsMenu(Menu menu) {

 

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

   

@Override

public boolean onOptionsItemSelected(MenuItem item) {

// Handle action bar item clicks here. The action bar will

// automatically handle clicks on the Home/Up button, so long

// as you specify a parent activity in AndroidManifest.xml.

int id = item.getItemId();

if (id == R.id.action_settings) {

return true;

}

return super.onOptionsItemSelected(item);

}

   

/**

* A placeholder fragment containing a simple view.

*/

public static class PlaceholderFragment extends Fragment {

   

public PlaceholderFragment() {

}

   

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

View rootView = inflater.inflate(R.layout.fragment_main, container, false);

return rootView;

}

}

   

}

   

최초 프로젝트 생성 후 MainActivity.java파일

   

기본 형태로 만든 MainActivity.java파일 내용

   

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