레이아웃(Layout) : 버튼 & 텍스트 입력 [Activity, 전개(inflation)]

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/LinearLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

 

    <EditText

        android:id="@+id/et1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:inputType="text"

        />

   

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="버튼1"

        android:textColor="#0000ff"

        android:onClick="onClick"

        />

 

    <Button

        android:id="@+id/btn2"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="버튼2"

        android:textColor="#0000ff" />

 

</LinearLayout>

 

 

 

MainActivity.java

package com.example.testex03;

 

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

import android.view.inputmethod.InputMethodManager;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

 

public class MainActivity extends Activity {

        //findViewId와 같은 메서드는 Activity에서 상속받은것임!

        //키보드

        InputMethodManager imm;

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

       //전개(inflation) : XML문서에 정의된 레이아웃과 속성을 읽어서 실제 뷰를 생성

setContentView(R.layout.activity_main);

       

        imm = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);

       

        Button btn2 = (Button)findViewById(R.id.btn2);

        btn2.setOnClickListener(new View.OnClickListener() {

                      

        @Override

                       public void onClick(View v) {

                              EditText et1 = (EditText)findViewById(R.id.et1);

                              String msg = et1.getText().toString();

                             

                              //alret창

                              Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();

                             

                              //키보드창을 숨기기

                              imm.hideSoftInputFromWindow(et1.getWindowToken(), 0);

                             

                       }

               }); 

    }

 

    @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;

    }

   

    public void onClick(View view){

        Toast.makeText(this, "android:onClick", Toast.LENGTH_SHORT).show();

    }

   

}