#4 안드로이드 스튜디오 이미지뷰 (ImageView) 예제 [ 홍드로이드 ]

<?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">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="홍드로이드"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.05"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.032" />
 
 
    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="앱개발자"
        tools:layout_editor_absoluteX="16dp"
        tools:layout_editor_absoluteY="70dp" />
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="안녕하세요" />
 
    <EditText
        android:id="@+id/et_test"
        android:layout_width="100dp"
        android:layout_height="wrap_content" />
 
    <Button
        android:id="@+id/btn_test"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="버튼" />
 
 
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="left">
 
        <ImageView
            android:id="@+id/test"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:src="@mipmap/ic_launcher" />
 
    </LinearLayout>
 
 
</LinearLayout>

package com.example.study01;
 
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
 
public class MainActivity extends AppCompatActivity {
 
 
    EditText et_test;
    Button btn_test;
    ImageView test;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        et_test = (EditText)findViewById(R.id.et_test);
 
        btn_test = (Button)findViewById(R.id.btn_test);
        btn_test.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this, SubActivity.class);
                startActivity(intent);
            }
        });
 
        test = (ImageView)findViewById(R.id.test);
        test.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(),"홍드로이드 잘생김",Toast.LENGTH_SHORT).show();
            }
        });
 
 
 
 
    }
}
 

[activity_sub.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">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="홍드로이드"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.05"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.032" />
 
 
    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="앱개발자"
        tools:layout_editor_absoluteX="16dp"
        tools:layout_editor_absoluteY="70dp" />
    
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="안녕하세요"/>
 
    <EditText
        android:id="@+id/et_test"
        android:layout_width="100dp"
        android:layout_height="wrap_content" />
 
    <Button
        android:id="@+id/btn_test"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="버튼"/>
 
 
 
 
</LinearLayout>

[SubActivity.java]

package com.example.study01;
 
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
 
public class SubActivity extends AppCompatActivity {
 
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sub);
 
 
    }
}