Programming/Android

안드로이드 프로그래밍 2장 예제 (fourbutton,edittext,radiobutton,imageview)

fishersheep 2021. 8. 16. 17:35
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fourbutton

MainActivity.java

package com.example.fourbutton;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

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

        Button btn1 = (Button) findViewById(R.id.button1);
        btn1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent mIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http:://m.nate.com"));
                startActivity(mIntent);
            }
        });

        Button btn2 = (Button) findViewById(R.id.button2);
        btn2.setBackgroundColor(Color.GREEN);
        btn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent mIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("tel:/911"));
                startActivity(mIntent);
            }
        });

        Button btn3 = (Button) findViewById(R.id.button3);
        btn3.setBackgroundColor(Color.RED);
        btn3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent mIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("content://media/internal/images/media"));
                startActivity(mIntent);
            }
        });

        Button btn4 = (Button) findViewById(R.id.button4);
        btn4.setBackgroundColor(Color.YELLOW);
        btn4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });
    }
}

Activity_Main.xml

<?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:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="네이트홈페이지열기" />


    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="911응급전화걸기" />

    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="갤러리열기" />

    <Button
        android:id="@+id/button4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="끝내기" />

</LinearLayout>

안드로이드프로그래밍 fourbutton

edittext,radiobutton,imageview 활용

MainActivity.java

package com.example.ex7app;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.text.Editable;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

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

        final EditText edt1 = (EditText) findViewById(R.id.editText1);


        Button btn1 = (Button) findViewById(R.id.button1);
        btn1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
            String str = edt1.getText().toString();
                Toast.makeText(MainActivity.this,str,Toast.LENGTH_SHORT).show();
            }
        });

        Button btn2 = (Button) findViewById(R.id.button2);
        btn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent mIntent= new Intent(Intent.ACTION_VIEW, Uri.parse(String.valueOf(edt1.getText())));
                startActivity(mIntent);
            }
        });

        RadioButton rdb1=(RadioButton) findViewById(R.id.radioButton1);
        final ImageView imv1=(ImageView)findViewById(R.id.image1);
        final ImageView imv2=(ImageView)findViewById(R.id.image2);

        imv1.setVisibility(View.INVISIBLE);
        imv2.setVisibility(View.INVISIBLE);


        imv2.setVisibility(View.VISIBLE);

        rdb1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
            imv1.setImageResource(R.drawable.o);
            imv1.setVisibility(View.VISIBLE);
            imv2.setVisibility(View.INVISIBLE);
            }
        });

        RadioButton rdb2=(RadioButton)findViewById(R.id.radioButton2);

        rdb2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                imv1.setVisibility(View.INVISIBLE);
                imv2.setImageResource(R.drawable.pie2);
                imv2.setVisibility(View.VISIBLE);
            }
        });
    }
}

Activity_Main.xml

<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <EditText
        android:id="@+id/editText1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="20"
        android:inputType="textPersonName"
        android:text="" />

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:text="글자 나타내기" />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:text="홈페이지 열기" />

    <RadioButton
        android:id="@+id/radioButton1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:text="오레오"
        android:layout_gravity="center"/>

    <RadioButton
        android:id="@+id/radioButton2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:text="파이"
        android:layout_gravity="center"/>

    <ImageView
        android:id="@+id/image1"
        android:layout_width="87dp"
        android:layout_height="255dp"
        android:layout_gravity="center"
        android:src="@drawable/o"
        android:layout_weight="1"/>

    <ImageView
        android:id="@+id/image2"
        android:layout_width="87dp"
        android:layout_height="268dp"
        android:layout_gravity="center"
        android:src="@drawable/pie2"
        android:layout_weight="1"/>

</LinearLayout>

안드로이드프로그래밍 2장예제

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