안드로이드 앱 만들기1

1.  글자 나타내기를 클릭하면  입력한 글자가 잠깐 메세지로 출력

2. 홈페이지 열기를 클릭하면 입력한 URL이 열림

3. 처음에는 기본 이미지만 나타나고, 라디오 버튼을 클릭하면 다른 이미지로 변경

Java source

package com.example.ryan.study;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    EditText editText;
    Button btn1, btn2;
    RadioGroup rdg;
    RadioButton rdbtn1, rdbtn2;
    ImageView image1,image2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        editText = (EditText) findViewById(R.id.edit);
        btn1 = (Button) findViewById(R.id.btn1);
        btn2 = (Button) findViewById(R.id.btn2);
        rdg = (RadioGroup) findViewById(R.id.radg);
        rdbtn1 = (RadioButton) findViewById(R.id.rdbtn1);
        rdbtn2 = (RadioButton) findViewById(R.id.rdbtn2);
        image1 = (ImageView) findViewById(R.id.image1);
        image2 = (ImageView) findViewById(R.id.image2);


//        editText.setText(new View.);

        editText.getText();
        btn1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                //Log.v("글자나타내기",editText.getText().toString());
                //Toast.makeText(getApplicationContext(),editText.getText().toString(),Toast.LENGTH_SHORT).show();
                Toast.makeText(getApplicationContext(), "글자 나타내기", Toast.LENGTH_SHORT).show();
            }
        });

        btn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(getApplicationContext(), "http://m.doum.net", Toast.LENGTH_SHORT).show();
                Intent mIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(editText.getText().toString()));
                startActivity(mIntent);
            }
        });


    rdg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int i) {
            if(rdbtn1.isChecked()==true){
                image1.setVisibility(View.VISIBLE);
                image2.setVisibility(View.INVISIBLE);
            }
            else if(rdbtn2.isChecked()==true){
                image1.setVisibility(View.INVISIBLE);
                image2.setVisibility(View.VISIBLE);
            }
        }
    });




    }
}

xml source

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.ryan.study.MainActivity">

    <EditText
        android:id="@+id/edit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="http://m.daum.net" />

    <Button
        android:id="@+id/btn1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="글자 나타내기" />

    <Button
        android:id="@+id/btn2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="홈페이지 열기" />

    <RadioGroup
        android:id="@+id/radg"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:checkedButton="@+id/rdbtn1">

        <RadioButton
            android:id="@+id/rdbtn1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="160dp"
            android:text="누가" />

        <RadioButton
            android:id="@+id/rdbtn2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="160dp"
            android:text="오레오" />


    </RadioGroup>

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="visible">

        <ImageView
            android:id="@+id/image1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:visibility="visible"
            app:srcCompat="@drawable/cat1" />

        <ImageView
            android:id="@+id/image2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:visibility="invisible"
            app:srcCompat="@drawable/cat2" />
    </FrameLayout>


</LinearLayout>