[안드로이드 프로그래밍] 11장 직접 풀어보기 11-1

한빛아카데미 Android Studio를 활용한 안드로이드 프로그래밍 6판

 

p.439 직접 풀어보기 11-1

 

영화 포스터를 클릭하면 나오는 대화상자의 제목 창에 영화 제목이 보이도록 [실습11-1]을 수정하라.

대화상자의 아이콘도 수정하라.

 

HINT posterID와 동일한 개수의 문자열 배열을 정의하고 영화 제목을 넣는다.

 

코드

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <GridView
        android:id="@+id/gridView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:numColumns="4" />

</LinearLayout>

 

item.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical">

    <ImageView
        android:id="@+id/ivPoster"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

 

MainActivity.java

package com.cookandroid.test2;

import androidx.appcompat.app.AppCompatActivity;

import android.app.AlertDialog;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setTitle("그리드뷰 영화 포스터");

        final GridView gv = findViewById(R.id.gridView1);
        MyGridAdapter gAdapter = new MyGridAdapter(this);
        gv.setAdapter(gAdapter);
    }

    public class MyGridAdapter extends BaseAdapter {
        Context context;
        Integer[] posterID = {R.drawable.mov01, R.drawable.mov02,
                R.drawable.mov03, R.drawable.mov04, R.drawable.mov05,
                R.drawable.mov06, R.drawable.mov07, R.drawable.mov08,
                R.drawable.mov09, R.drawable.mov10, R.drawable.mov01,
                R.drawable.mov02, R.drawable.mov03, R.drawable.mov04,
                R.drawable.mov05, R.drawable.mov06, R.drawable.mov07,
                R.drawable.mov08, R.drawable.mov09, R.drawable.mov10,
                R.drawable.mov01, R.drawable.mov02, R.drawable.mov03,
                R.drawable.mov04, R.drawable.mov05, R.drawable.mov06,
                R.drawable.mov07, R.drawable.mov08, R.drawable.mov09,
                R.drawable.mov10};

        public MyGridAdapter(Context c) { context = c; }

        public int getCount() { return posterID.length; }

        public Object getItem(int position) { return null; }

        public long getItemId(int position) { return 0; }

        String[] posterTitle = {"써니", "완득이", "괴물", "라디오스타", "비열한거리", "왕의남자",
                "아일랜드", "웰컴투동막골", "헬보이", "빽투더퓨처", "써니", "완득이", "괴물", "라디오스타",
                "비열한거리", "왕의남자", "아일랜드", "웰컴투동막골", "헬보이", "빽투더퓨처", "써니", "완득이",
                "괴물", "라디오스타", "비열한거리", "왕의남자", "아일랜드", "웰컴투동막골", "헬보이",
                "빽투더퓨처", "써니", "완득이", "괴물", "라디오스타", "비열한거리", "왕의남자", "아일랜드",
                "웰컴투동막골", "헬보이", "빽투더퓨처"};

        public View getView(int position, View convertView, ViewGroup parent) {
            ImageView imageview = new ImageView(context);
            imageview.setLayoutParams(new GridView.LayoutParams(200, 300));
            imageview.setScaleType(ImageView.ScaleType.FIT_CENTER);
            imageview.setPadding(5, 5, 5, 5);
            imageview.setImageResource(posterID[position]);

            final int pos = position;
            imageview.setOnClickListener(new View.OnClickListener() {
                public void onClick(View v) {
                    View dialogView = View.inflate(MainActivity.this, R.layout.item, null);
                    AlertDialog.Builder dlg = new AlertDialog.Builder(MainActivity.this);
                    ImageView ivPoster = dialogView.findViewById(R.id.ivPoster);
                    ivPoster.setImageResource(posterID[pos]);
                    dlg.setTitle(posterTitle[pos]);
                    dlg.setIcon(R.drawable.movie_icon);
                    dlg.setView(dialogView);
                    dlg.setNegativeButton("닫기", null);
                    dlg.show();
                }
            });
            return imageview;
        }
    }
}

 

결과