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Java 如何全屏显示所选网格图像

java android xml gridview

Java 如何全屏显示所选网格图像,java,android,xml,gridview,android-activity,Java,Android,Xml,Gridview,Android Activity,我使用教程创建了一个网格视图应用程序： 请参见教程链接： 我想在其中添加新功能，我想在新的全屏活动中显示选定的网格图像 我试过这样做，但出现了错误：读取我的代码： 错误： 说明资源路径位置类型ImageAdapter不能为 已解析为类型AndroidGridLayoutActivity.java/TD的副本 GridView/src/com/td/GridView第21行Java问题 说明资源路径位置类型ImageAdapter不能为 已解析为FullImageActivity.java类型/T

我使用教程创建了一个网格视图应用程序：

请参见教程链接：

我想在其中添加新功能，我想在新的全屏活动中显示选定的网格图像

我试过这样做，但出现了错误：读取我的代码：

错误：

  • 说明资源路径位置类型ImageAdapter不能为 已解析为类型AndroidGridLayoutActivity.java/TD的副本 GridView/src/com/td/GridView第21行Java问题

  • 说明资源路径位置类型ImageAdapter不能为 已解析为FullImageActivity.java类型/TD的副本 GridView/src/com/td/GridView第20行Java问题

  • 说明资源路径位置类型构造函数 MainActivity（FullImageActivity）是 未定义的FullImageActivity.java/TD的副本 GridView/src/com/td/GridView第20行Java问题

    • 我的代码这是教程中使用的原始代码/请参阅本文顶部的链接 这是第1个教程中仅使用栅格视图图像的代码

    MainActivity.java

    package com.td.gridview;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewTreeObserver;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

public class MainActivity extends Activity {

    private GridView photoGrid;
    private int mPhotoSize, mPhotoSpacing;
    private ImageAdapter imageAdapter;

    // Some items to add to the GRID
    private static final String[] CONTENT = new String[] { "Akon", "Justin Bieber", "AlRight", "Big Sean",
            "Britney Spears", "Hilary", "Micheal Buble", "Akon", "Justin Bieber", "AlRight", "Big Sean",
            "Britney Spears", "Hilary", "Micheal Buble", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Britney Spears",
            "Hilary", "Micheal Buble", "Akon", "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary",
            "Micheal Buble" };
    private static final int[] ICONS = new int[] { R.drawable.cover_akon, R.drawable.cover_justin,
            R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary,
            R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin, R.drawable.cover_alright,
            R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb,
            R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon,
            R.drawable.cover_justin, R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney,
            R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin,
            R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary,
            R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin, R.drawable.cover_alright,
            R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb,
            R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon,
            R.drawable.cover_justin, R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney,
            R.drawable.cover_hilary, R.drawable.cover_mb };

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

        // get the photo size and spacing
        mPhotoSize = getResources().getDimensionPixelSize(R.dimen.photo_size);
        mPhotoSpacing = getResources().getDimensionPixelSize(R.dimen.photo_spacing);

        // initialize image adapter
        imageAdapter = new ImageAdapter();

        photoGrid = (GridView) findViewById(R.id.albumGrid);

        // set image adapter to the GridView
        photoGrid.setAdapter(imageAdapter);

        // get the view tree observer of the grid and set the height and numcols dynamically
        photoGrid.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                if (imageAdapter.getNumColumns() == 0) {
                    final int numColumns = (int) Math.floor(photoGrid.getWidth() / (mPhotoSize + mPhotoSpacing));
                    if (numColumns > 0) {
                        final int columnWidth = (photoGrid.getWidth() / numColumns) - mPhotoSpacing;
                        imageAdapter.setNumColumns(numColumns);
                        imageAdapter.setItemHeight(columnWidth);

                    }
                }
            }
        });
    }

    // ///////// ImageAdapter class /////////////////
    public class ImageAdapter extends BaseAdapter {
        private LayoutInflater mInflater;
        private int mItemHeight = 0;
        private int mNumColumns = 0;
        private RelativeLayout.LayoutParams mImageViewLayoutParams;

        public ImageAdapter() {
            mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            mImageViewLayoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT,
                    LayoutParams.MATCH_PARENT);
        }

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

        // set numcols
        public void setNumColumns(int numColumns) {
            mNumColumns = numColumns;
        }

        public int getNumColumns() {
            return mNumColumns;
        }

        // set photo item height
        public void setItemHeight(int height) {
            if (height == mItemHeight) {
                return;
            }
            mItemHeight = height;
            mImageViewLayoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, mItemHeight);
            notifyDataSetChanged();
        }

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

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

        public View getView(final int position, View view, ViewGroup parent) {

            if (view == null)
                view = mInflater.inflate(R.layout.photo_item, null);

            ImageView cover = (ImageView) view.findViewById(R.id.cover);
            TextView title = (TextView) view.findViewById(R.id.title);

            cover.setLayoutParams(mImageViewLayoutParams);

            // Check the height matches our calculated column width
            if (cover.getLayoutParams().height != mItemHeight) {
                cover.setLayoutParams(mImageViewLayoutParams);
            }

            cover.setImageResource(ICONS[position % ICONS.length]);
            title.setText(CONTENT[position % CONTENT.length]);

            return view;
        }
    }

}

    package com.td.gridview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;

public class FullImageActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.full_image);

        // get intent data
        Intent i = getIntent();

        // Selected image id
        int position = i.getExtras().getInt("id");
        ImageAdapter imageAdapter = new ImageAdapter(this);

        ImageView imageView = (ImageView) findViewById(R.id.full_image_view);
        imageView.setImageResource(imageAdapter.mThumbIds[position]);
    }

}

    package com.td.gridview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;

public class AndroidGridLayoutActivity extends Activity {

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

        GridView gridView = (GridView) findViewById(R.id.albumGrid);

        // Instance of ImageAdapter Class
        gridView.setAdapter(new ImageAdapter(this));

        /**
         * On Click event for Single Gridview Item
         * */
        gridView.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View v,
                    int position, long id) {

                // Sending image id to FullScreenActivity
                Intent i = new Intent(getApplicationContext(), FullImageActivity.class);
                // passing array index
                i.putExtra("id", position);
                startActivity(i);
            }
        });
    }
}

    package com.td.gridview;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewTreeObserver;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;

public class MainActivity extends Activity {

    private GridView photoGrid;
    private int mPhotoSize, mPhotoSpacing;
    private ImageAdapter imageAdapter;

    // Some items to add to the GRID
    private static final String[] CONTENT = new String[] { "Akon", "Justin Bieber", "AlRight", "Big Sean",
            "Britney Spears", "Hilary", "Micheal Buble", "Akon", "Justin Bieber", "AlRight", "Big Sean",
            "Britney Spears", "Hilary", "Micheal Buble", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Britney Spears",
            "Hilary", "Micheal Buble", "Akon", "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary",
            "Micheal Buble" };
    static final int[] ICONS = new int[] { R.drawable.cover_akon, R.drawable.cover_justin,
            R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary,
            R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin, R.drawable.cover_alright,
            R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb,
            R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon,
            R.drawable.cover_justin, R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney,
            R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin,
            R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary,
            R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin, R.drawable.cover_alright,
            R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb,
            R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon,
            R.drawable.cover_justin, R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney,
            R.drawable.cover_hilary, R.drawable.cover_mb };

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

        // get the photo size and spacing
        mPhotoSize = getResources().getDimensionPixelSize(R.dimen.photo_size);
        mPhotoSpacing = getResources().getDimensionPixelSize(R.dimen.photo_spacing);

        // initialize image adapter
        imageAdapter = new ImageAdapter();

        photoGrid = (GridView) findViewById(R.id.albumGrid);

        //start sent image to full screen             

        /**
         * On Click event for Single Gridview Item
         * */
        photoGrid.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View v,
                    int position, long id) {

                // Sending image id to FullScreenActivity
                Intent i = new Intent(getApplicationContext(), FullImageActivity.class);
                // passing array index
                i.putExtra("id", position);
                startActivity(i);
            }
        });
        //end sent image to full screen

        // set image adapter to the GridView
        photoGrid.setAdapter(imageAdapter);

        // get the view tree observer of the grid and set the height and numcols dynamically
        photoGrid.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                if (imageAdapter.getNumColumns() == 0) {
                    final int numColumns = (int) Math.floor(photoGrid.getWidth() / (mPhotoSize + mPhotoSpacing));
                    if (numColumns > 0) {
                        final int columnWidth = (photoGrid.getWidth() / numColumns) - mPhotoSpacing;
                        imageAdapter.setNumColumns(numColumns);
                        imageAdapter.setItemHeight(columnWidth);

                    }
                }
            }
        });
    }

    // ///////// ImageAdapter class /////////////////
    public class ImageAdapter extends BaseAdapter {
        private LayoutInflater mInflater;
        private int mItemHeight = 0;
        private int mNumColumns = 0;
        private RelativeLayout.LayoutParams mImageViewLayoutParams;

        public ImageAdapter() {
            mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            mImageViewLayoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT,
                    LayoutParams.MATCH_PARENT);
        }

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

        // set numcols
        public void setNumColumns(int numColumns) {
            mNumColumns = numColumns;
        }

        public int getNumColumns() {
            return mNumColumns;
        }

        // set photo item height
        public void setItemHeight(int height) {
            if (height == mItemHeight) {
                return;
            }
            mItemHeight = height;
            mImageViewLayoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, mItemHeight);
            notifyDataSetChanged();
        }

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

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

        public View getView(final int position, View view, ViewGroup parent) {

            if (view == null)
                view = mInflater.inflate(R.layout.photo_item, null);

            ImageView cover = (ImageView) view.findViewById(R.id.cover);
            TextView title = (TextView) view.findViewById(R.id.title);

            cover.setLayoutParams(mImageViewLayoutParams);

            // Check the height matches our calculated column width
            if (cover.getLayoutParams().height != mItemHeight) {
                cover.setLayoutParams(mImageViewLayoutParams);
            }

            cover.setImageResource(ICONS[position % ICONS.length]);
            title.setText(CONTENT[position % CONTENT.length]);

            return view;
        }
    }

}

    package com.td.gridview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;

public class FullImageActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.full_image);

        // get intent data
        Intent i = getIntent();

        // Selected image id
        int position = i.getExtras().getInt("id");
        ImageView imageView = (ImageView) findViewById(R.id.full_image_view);
        imageView.setImageResource(MainActivity.ICONS[position]);

    }

}
    活动\u main.xml

    <GridView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/albumGrid"
    style="@style/PhotoGrid"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/black"
    android:columnWidth="@dimen/photo_size"
    android:horizontalSpacing="@dimen/photo_spacing"
    android:numColumns="auto_fit"
    android:padding="4dp"
    android:scrollbars="none"
    android:stretchMode="columnWidth"
    android:verticalSpacing="@dimen/photo_spacing" />

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/album_item"
    android:layout_width="match_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/cover"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/cover"
        android:background="#70000000"
        android:padding="6dp" >

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="end"
            android:singleLine="true"
            android:textColor="@color/white"
            android:textSize="12sp"
            android:textStyle="bold" />
    </LinearLayout>

</RelativeLayout>

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.td.gridview"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.td.gridview.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <activity
            android:name="com.td.gridview.AndroidGridLayoutActivity"
            android:label="@string/app_name" >            
        </activity>
        <activity
            android:name="com.td.gridview.FullImageActivity"
            android:label="@string/app_name" >            
        </activity>
    </application>

</manifest>

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ImageView 
            android:id="@+id/full_image_view"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"/>

</LinearLayout>
    AndroidGridLayoutActivity.java

    package com.td.gridview;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewTreeObserver;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

public class MainActivity extends Activity {

    private GridView photoGrid;
    private int mPhotoSize, mPhotoSpacing;
    private ImageAdapter imageAdapter;

    // Some items to add to the GRID
    private static final String[] CONTENT = new String[] { "Akon", "Justin Bieber", "AlRight", "Big Sean",
            "Britney Spears", "Hilary", "Micheal Buble", "Akon", "Justin Bieber", "AlRight", "Big Sean",
            "Britney Spears", "Hilary", "Micheal Buble", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Britney Spears",
            "Hilary", "Micheal Buble", "Akon", "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary",
            "Micheal Buble" };
    private static final int[] ICONS = new int[] { R.drawable.cover_akon, R.drawable.cover_justin,
            R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary,
            R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin, R.drawable.cover_alright,
            R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb,
            R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon,
            R.drawable.cover_justin, R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney,
            R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin,
            R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary,
            R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin, R.drawable.cover_alright,
            R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb,
            R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon,
            R.drawable.cover_justin, R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney,
            R.drawable.cover_hilary, R.drawable.cover_mb };

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

        // get the photo size and spacing
        mPhotoSize = getResources().getDimensionPixelSize(R.dimen.photo_size);
        mPhotoSpacing = getResources().getDimensionPixelSize(R.dimen.photo_spacing);

        // initialize image adapter
        imageAdapter = new ImageAdapter();

        photoGrid = (GridView) findViewById(R.id.albumGrid);

        // set image adapter to the GridView
        photoGrid.setAdapter(imageAdapter);

        // get the view tree observer of the grid and set the height and numcols dynamically
        photoGrid.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                if (imageAdapter.getNumColumns() == 0) {
                    final int numColumns = (int) Math.floor(photoGrid.getWidth() / (mPhotoSize + mPhotoSpacing));
                    if (numColumns > 0) {
                        final int columnWidth = (photoGrid.getWidth() / numColumns) - mPhotoSpacing;
                        imageAdapter.setNumColumns(numColumns);
                        imageAdapter.setItemHeight(columnWidth);

                    }
                }
            }
        });
    }

    // ///////// ImageAdapter class /////////////////
    public class ImageAdapter extends BaseAdapter {
        private LayoutInflater mInflater;
        private int mItemHeight = 0;
        private int mNumColumns = 0;
        private RelativeLayout.LayoutParams mImageViewLayoutParams;

        public ImageAdapter() {
            mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            mImageViewLayoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT,
                    LayoutParams.MATCH_PARENT);
        }

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

        // set numcols
        public void setNumColumns(int numColumns) {
            mNumColumns = numColumns;
        }

        public int getNumColumns() {
            return mNumColumns;
        }

        // set photo item height
        public void setItemHeight(int height) {
            if (height == mItemHeight) {
                return;
            }
            mItemHeight = height;
            mImageViewLayoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, mItemHeight);
            notifyDataSetChanged();
        }

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

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

        public View getView(final int position, View view, ViewGroup parent) {

            if (view == null)
                view = mInflater.inflate(R.layout.photo_item, null);

            ImageView cover = (ImageView) view.findViewById(R.id.cover);
            TextView title = (TextView) view.findViewById(R.id.title);

            cover.setLayoutParams(mImageViewLayoutParams);

            // Check the height matches our calculated column width
            if (cover.getLayoutParams().height != mItemHeight) {
                cover.setLayoutParams(mImageViewLayoutParams);
            }

            cover.setImageResource(ICONS[position % ICONS.length]);
            title.setText(CONTENT[position % CONTENT.length]);

            return view;
        }
    }

}

    package com.td.gridview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;

public class FullImageActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.full_image);

        // get intent data
        Intent i = getIntent();

        // Selected image id
        int position = i.getExtras().getInt("id");
        ImageAdapter imageAdapter = new ImageAdapter(this);

        ImageView imageView = (ImageView) findViewById(R.id.full_image_view);
        imageView.setImageResource(imageAdapter.mThumbIds[position]);
    }

}

    package com.td.gridview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;

public class AndroidGridLayoutActivity extends Activity {

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

        GridView gridView = (GridView) findViewById(R.id.albumGrid);

        // Instance of ImageAdapter Class
        gridView.setAdapter(new ImageAdapter(this));

        /**
         * On Click event for Single Gridview Item
         * */
        gridView.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View v,
                    int position, long id) {

                // Sending image id to FullScreenActivity
                Intent i = new Intent(getApplicationContext(), FullImageActivity.class);
                // passing array index
                i.putExtra("id", position);
                startActivity(i);
            }
        });
    }
}

    package com.td.gridview;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewTreeObserver;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;

public class MainActivity extends Activity {

    private GridView photoGrid;
    private int mPhotoSize, mPhotoSpacing;
    private ImageAdapter imageAdapter;

    // Some items to add to the GRID
    private static final String[] CONTENT = new String[] { "Akon", "Justin Bieber", "AlRight", "Big Sean",
            "Britney Spears", "Hilary", "Micheal Buble", "Akon", "Justin Bieber", "AlRight", "Big Sean",
            "Britney Spears", "Hilary", "Micheal Buble", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Akon",
            "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary", "Micheal Buble", "Britney Spears",
            "Hilary", "Micheal Buble", "Akon", "Justin Bieber", "AlRight", "Big Sean", "Britney Spears", "Hilary",
            "Micheal Buble" };
    static final int[] ICONS = new int[] { R.drawable.cover_akon, R.drawable.cover_justin,
            R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary,
            R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin, R.drawable.cover_alright,
            R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb,
            R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon,
            R.drawable.cover_justin, R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney,
            R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin,
            R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary,
            R.drawable.cover_mb, R.drawable.cover_akon, R.drawable.cover_justin, R.drawable.cover_alright,
            R.drawable.cover_big_sean, R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb,
            R.drawable.cover_britney, R.drawable.cover_hilary, R.drawable.cover_mb, R.drawable.cover_akon,
            R.drawable.cover_justin, R.drawable.cover_alright, R.drawable.cover_big_sean, R.drawable.cover_britney,
            R.drawable.cover_hilary, R.drawable.cover_mb };

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

        // get the photo size and spacing
        mPhotoSize = getResources().getDimensionPixelSize(R.dimen.photo_size);
        mPhotoSpacing = getResources().getDimensionPixelSize(R.dimen.photo_spacing);

        // initialize image adapter
        imageAdapter = new ImageAdapter();

        photoGrid = (GridView) findViewById(R.id.albumGrid);

        //start sent image to full screen             

        /**
         * On Click event for Single Gridview Item
         * */
        photoGrid.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View v,
                    int position, long id) {

                // Sending image id to FullScreenActivity
                Intent i = new Intent(getApplicationContext(), FullImageActivity.class);
                // passing array index
                i.putExtra("id", position);
                startActivity(i);
            }
        });
        //end sent image to full screen

        // set image adapter to the GridView
        photoGrid.setAdapter(imageAdapter);

        // get the view tree observer of the grid and set the height and numcols dynamically
        photoGrid.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                if (imageAdapter.getNumColumns() == 0) {
                    final int numColumns = (int) Math.floor(photoGrid.getWidth() / (mPhotoSize + mPhotoSpacing));
                    if (numColumns > 0) {
                        final int columnWidth = (photoGrid.getWidth() / numColumns) - mPhotoSpacing;
                        imageAdapter.setNumColumns(numColumns);
                        imageAdapter.setItemHeight(columnWidth);

                    }
                }
            }
        });
    }

    // ///////// ImageAdapter class /////////////////
    public class ImageAdapter extends BaseAdapter {
        private LayoutInflater mInflater;
        private int mItemHeight = 0;
        private int mNumColumns = 0;
        private RelativeLayout.LayoutParams mImageViewLayoutParams;

        public ImageAdapter() {
            mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            mImageViewLayoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT,
                    LayoutParams.MATCH_PARENT);
        }

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

        // set numcols
        public void setNumColumns(int numColumns) {
            mNumColumns = numColumns;
        }

        public int getNumColumns() {
            return mNumColumns;
        }

        // set photo item height
        public void setItemHeight(int height) {
            if (height == mItemHeight) {
                return;
            }
            mItemHeight = height;
            mImageViewLayoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, mItemHeight);
            notifyDataSetChanged();
        }

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

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

        public View getView(final int position, View view, ViewGroup parent) {

            if (view == null)
                view = mInflater.inflate(R.layout.photo_item, null);

            ImageView cover = (ImageView) view.findViewById(R.id.cover);
            TextView title = (TextView) view.findViewById(R.id.title);

            cover.setLayoutParams(mImageViewLayoutParams);

            // Check the height matches our calculated column width
            if (cover.getLayoutParams().height != mItemHeight) {
                cover.setLayoutParams(mImageViewLayoutParams);
            }

            cover.setImageResource(ICONS[position % ICONS.length]);
            title.setText(CONTENT[position % CONTENT.length]);

            return view;
        }
    }

}

    package com.td.gridview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;

public class FullImageActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.full_image);

        // get intent data
        Intent i = getIntent();

        // Selected image id
        int position = i.getExtras().getInt("id");
        ImageView imageView = (ImageView) findViewById(R.id.full_image_view);
        imageView.setImageResource(MainActivity.ICONS[position]);

    }

}
    什么是imageAdapter.mThumbIds[位置]？我想你应该试试这个

    setImageResource（MainActivity.ICONS[position]）

    你是否检查了提供的教程链接，请再看一次，你会得到这个，实际上这是我的问题，因为我不知道如何用我的代码调整它。ImageAdapter是第2教程中的类，m.Thumbid是包含图像的数组。有关~imageAdapter.mThumbIds[position]~图像适配器中是否有ThumbsIds数组，请参阅此处的链接？？通过编辑代码中的上一行，您将得到预期的结果..dude thanx为您提供帮助实际上由于我的代码不同，我不知道如何将图像数组设置为
    imageAdapter.mThumbIds[position]
    现在我将其更改为`imageView.setImageResource（MainActivity.ICONS[position]）`那有帮助