Android仿微信朋友圈上傳圖片

先看效果圖:

android 仿微信朋友圈上傳圖片,相冊選擇拍照上傳,裁剪編輯等,沒什麼技術點,直接上代碼 如下

1. MainActivity 主類 界面操作類

package com.dynamic;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;

import android.app.Activity;
import android.app.Dialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ColorDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;

import android.provider.MediaStore;
import android.text.Editable;
import android.text.Selection;
import android.text.Spannable;
import android.text.TextWatcher;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.ViewTreeObserver.OnPreDrawListener;
import android.view.WindowManager;
import android.view.animation.AnimationUtils;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;

import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.HorizontalScrollView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.ScrollView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnItemClickListener {

    private GridView gridview;
    private GridAdapter adapter;

    private TextView activity_selectimg_send;
    private ImageView back;
    private EditText comment_content;
    private String temp;
    private Button selectimg_bt_content_type, selectimg_bt_search;
    private LinearLayout selectimg_relativeLayout_below;
    private ScrollView activity_selectimg_scrollView;
    private HorizontalScrollView selectimg_horizontalScrollView;

    private List<String> categoryList;

    private float dp;

    public List<Bitmap> bmp = new ArrayList<Bitmap>();
    public List<String> drr = new ArrayList<String>();

    protected void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_selectimg);

        Init();
    }

    List<String> urList = new ArrayList<String>();

    public void Init() {
        dp = getResources().getDimension(R.dimen.dp);
        comment_content = (EditText) findViewById(R.id.comment_content);
        comment_content.setFocusable(true);
        comment_content.setFocusableInTouchMode(true); 

        back = (ImageView) findViewById(R.id.back);
        back.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                MainActivity.this.finish();
            }
        });

        selectimg_horizontalScrollView = (HorizontalScrollView) findViewById(R.id.selectimg_horizontalScrollView);
        gridview = (GridView) findViewById(R.id.noScrollgridview);
        gridview.setSelector(new ColorDrawable(Color.TRANSPARENT));
        gridviewInit();
        comment_content.addTextChangedListener(new TextWatcher() {

            @Override
            public void onTextChanged(CharSequence s, int start, int before,
                    int count) {
                // TODO Auto-generated method stub
                temp = s.toString();
            }

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) {
                // TODO Auto-generated method stub

            }

            @Override
            public void afterTextChanged(Editable s) {
                // TODO Auto-generated method stub

            }
        });
        activity_selectimg_send = (TextView) findViewById(R.id.activity_selectimg_send);
        activity_selectimg_send.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                if (bmp.size() < 1) {
                    Toast.makeText(getApplicationContext(), "至少需要一張圖片",
                            Toast.LENGTH_SHORT).show();
                    return;
                }

                ((InputMethodManager) getSystemService(INPUT_METHOD_SERVICE))
                        .hideSoftInputFromWindow(MainActivity.this
                                .getCurrentFocus().getWindowToken(),
                                InputMethodManager.HIDE_NOT_ALWAYS);

                String content = comment_content.getText().toString().trim();
                if (content.equals("")) {
                    Toast.makeText(getApplicationContext(), "發佈的內容不能爲空",
                            Toast.LENGTH_SHORT).show();
                    return;
                }
                for (int i = 0; i < drr.size(); i++) {
                    urList.add(drr.get(i));
                }
                activity_selectimg_send.setEnabled(false);

                // 圖片地址 urList；
            }
        });

        selectimg_relativeLayout_below = (LinearLayout) findViewById(R.id.selectimg_relativeLayout_below);
        activity_selectimg_scrollView = (ScrollView) findViewById(R.id.activity_selectimg_scrollView);
        activity_selectimg_scrollView.setVerticalScrollBarEnabled(false);

        final View decorView = getWindow().getDecorView();
        final WindowManager wm = this.getWindowManager();

        decorView.getViewTreeObserver().addOnGlobalLayoutListener(
                new OnGlobalLayoutListener() {
                    @Override
                    public void onGlobalLayout() {
                        @SuppressWarnings("deprecation")
                        int displayheight = wm.getDefaultDisplay().getHeight();
                        Rect rect = new Rect();
                        decorView.getWindowVisibleDisplayFrame(rect);
                        int dynamicHight = rect.bottom - rect.top;
                        float ratio = (float) dynamicHight
                                / (float) displayheight;

                        if (ratio > 0.2f && ratio < 0.6f) {
                            selectimg_relativeLayout_below
                                    .setVisibility(View.VISIBLE);
                            activity_selectimg_scrollView.scrollBy(0,
                                    activity_selectimg_scrollView.getHeight());
                        } else {
                            selectimg_relativeLayout_below
                                    .setVisibility(View.GONE);
                        }
                    }
                });

    }

    public void gridviewInit() {
        adapter = new GridAdapter(this);
        adapter.setSelectedPosition(0);
        int size = 0;
        if (bmp.size() < 6) {
            size = bmp.size() + 1;
        } else {
            size = bmp.size();
        }
        LayoutParams params = gridview.getLayoutParams();
        final int width = size * (int) (dp * 9.4f);
        params.width = width;
        gridview.setLayoutParams(params);
        gridview.setColumnWidth((int) (dp * 9.4f));
        gridview.setStretchMode(GridView.NO_STRETCH);
        gridview.setNumColumns(size);
        gridview.setAdapter(adapter);
        gridview.setOnItemClickListener(this);

        selectimg_horizontalScrollView.getViewTreeObserver()
                .addOnPreDrawListener(// 繪製完畢
                        new OnPreDrawListener() {
                            public boolean onPreDraw() {
                                selectimg_horizontalScrollView.scrollTo(width,
                                        0);
                                selectimg_horizontalScrollView
                                        .getViewTreeObserver()
                                        .removeOnPreDrawListener(this);
                                return false;
                            }
                        });
    }

    protected void onPause() {
        // TODO Auto-generated method stub
        // temp=comment_content.getText().toString().trim();
        super.onPause();
    }

    public class GridAdapter extends BaseAdapter {
        private LayoutInflater listContainer;
        private int selectedPosition = -1;
        private boolean shape;

        public boolean isShape() {
            return shape;
        }

        public void setShape(boolean shape) {
            this.shape = shape;
        }

        public class ViewHolder {
            public ImageView image;
            public Button bt;
        }

        public GridAdapter(Context context) {
            listContainer = LayoutInflater.from(context);
        }

        public int getCount() {
            if (bmp.size() < 6) {
                return bmp.size() + 1;
            } else {
                return bmp.size();
            }
        }

        public Object getItem(int arg0) {

            return null;
        }

        public long getItemId(int arg0) {

            return 0;
        }

        public void setSelectedPosition(int position) {
            selectedPosition = position;
        }

        public int getSelectedPosition() {
            return selectedPosition;
        }

        /**
         * ListView Item設置
         */
        public View getView(int position, View convertView, ViewGroup parent) {
            final int sign = position;
            // 自定義視圖
            ViewHolder holder = null;
            if (convertView == null) {
                holder = new ViewHolder();
                // 獲取list_item佈局文件的視圖

                convertView = listContainer.inflate(
                        R.layout.item_published_grida, null);

                // 獲取控件對象
                holder.image = (ImageView) convertView
                        .findViewById(R.id.item_grida_image);
                holder.bt = (Button) convertView
                        .findViewById(R.id.item_grida_bt);
                // 設置控件集到convertView
                convertView.setTag(holder);
            } else {
                holder = (ViewHolder) convertView.getTag();
            }

            if (position == bmp.size()) {
                holder.image.setImageBitmap(BitmapFactory.decodeResource(
                        getResources(), R.drawable.icon_addpic_unfocused));
                holder.bt.setVisibility(View.GONE);
                if (position == 6) {
                    holder.image.setVisibility(View.GONE);
                }
            } else {
                holder.image.setImageBitmap(bmp.get(position));
                holder.bt.setOnClickListener(new OnClickListener() {

                    public void onClick(View v) {
                        PhotoActivity.bitmap.remove(sign);
                        bmp.get(sign).recycle();
                        bmp.remove(sign);
                        drr.remove(sign);

                        gridviewInit();
                    }
                });
            }

            return convertView;
        }
    }

    public class PopupWindows extends PopupWindow {

        public PopupWindows(Context mContext, View parent) {

            View view = View
                    .inflate(mContext, R.layout.item_popupwindows, null);
            view.startAnimation(AnimationUtils.loadAnimation(mContext,
                    R.anim.fade_ins));
            LinearLayout ll_popup = (LinearLayout) view
                    .findViewById(R.id.ll_popup);
            // ll_popup.startAnimation(AnimationUtils.loadAnimation(mContext,
            // R.anim.push_bottom_in_2));

            setWidth(LayoutParams.FILL_PARENT);
            setHeight(LayoutParams.FILL_PARENT);
            setBackgroundDrawable(new BitmapDrawable());
            setFocusable(true);
            setOutsideTouchable(true);
            setContentView(view);
            showAtLocation(parent, Gravity.BOTTOM, 0, 0);
            update();

            Button bt1 = (Button) view
                    .findViewById(R.id.item_popupwindows_camera);
            Button bt2 = (Button) view
                    .findViewById(R.id.item_popupwindows_Photo);
            Button bt3 = (Button) view
                    .findViewById(R.id.item_popupwindows_cancel);
            bt1.setOnClickListener(new OnClickListener() {
                public void onClick(View v) {
                    photo();
                    dismiss();
                }
            });
            bt2.setOnClickListener(new OnClickListener() {
                public void onClick(View v) {
                    Intent i = new Intent(
                            // 相冊
                            Intent.ACTION_PICK,
                            android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                    startActivityForResult(i, RESULT_LOAD_IMAGE);
                    dismiss();
                }
            });
            bt3.setOnClickListener(new OnClickListener() {
                public void onClick(View v) {
                    dismiss();
                }
            });

        }
    }

    private static final int TAKE_PICTURE = 0;
    private static final int RESULT_LOAD_IMAGE = 1;
    private static final int CUT_PHOTO_REQUEST_CODE = 2;
    private static final int SELECTIMG_SEARCH = 3;
    private String path = "";
    private Uri photoUri;

    public void photo() {
        try {
            Intent openCameraIntent = new Intent(
                    MediaStore.ACTION_IMAGE_CAPTURE);

            String sdcardState = Environment.getExternalStorageState();
            String sdcardPathDir = android.os.Environment
                    .getExternalStorageDirectory().getPath() + "/tempImage/";
            File file = null;
            if (Environment.MEDIA_MOUNTED.equals(sdcardState)) {
                // 有sd卡，是否有myImage文件夾
                File fileDir = new File(sdcardPathDir);
                if (!fileDir.exists()) {
                    fileDir.mkdirs();
                }
                // 是否有headImg文件
                file = new File(sdcardPathDir + System.currentTimeMillis()
                        + ".JPEG");
            }
            if (file != null) {
                path = file.getPath();
                photoUri = Uri.fromFile(file);
                openCameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);

                startActivityForResult(openCameraIntent, TAKE_PICTURE);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
        case TAKE_PICTURE:
            if (drr.size() < 6 && resultCode == -1) {// 拍照
                startPhotoZoom(photoUri);
            }
            break;
        case RESULT_LOAD_IMAGE:
            if (drr.size() < 6 && resultCode == RESULT_OK && null != data) {// 相冊返回
                Uri uri = data.getData();
                if (uri != null) {
                    startPhotoZoom(uri);
                }
            }
            break;
        case CUT_PHOTO_REQUEST_CODE:
            if (resultCode == RESULT_OK && null != data) {// 裁剪返回
                Bitmap bitmap = Bimp.getLoacalBitmap(drr.get(drr.size() - 1));
                PhotoActivity.bitmap.add(bitmap);
                bitmap = Bimp.createFramedPhoto(480, 480, bitmap,
                        (int) (dp * 1.6f));
                bmp.add(bitmap);
                gridviewInit();
            }
            break;
        case SELECTIMG_SEARCH:
            if (resultCode == RESULT_OK && null != data) {
                String text = "#" + data.getStringExtra("topic") + "#";
                text = comment_content.getText().toString() + text;
                comment_content.setText(text);

                comment_content.getViewTreeObserver().addOnPreDrawListener(
                        new OnPreDrawListener() {
                            public boolean onPreDraw() {
                                comment_content.setEnabled(true);
                                // 設置光標爲末尾
                                CharSequence cs = comment_content.getText();
                                if (cs instanceof Spannable) {
                                    Spannable spanText = (Spannable) cs;
                                    Selection.setSelection(spanText,
                                            cs.length());
                                }
                                comment_content.getViewTreeObserver()
                                        .removeOnPreDrawListener(this);
                                return false;
                            }
                        });

            }

            break;
        }
    }

    private void startPhotoZoom(Uri uri) {
        try {
            // 獲取系統時間 然後將裁剪後的圖片保存至指定的文件夾
            SimpleDateFormat sDateFormat = new SimpleDateFormat(
                    "yyyyMMddhhmmss");
            String address = sDateFormat.format(new java.util.Date());
            if (!FileUtils.isFileExist("")) {
                FileUtils.createSDDir("");

            }
            drr.add(FileUtils.SDPATH + address + ".JPEG");
            Uri imageUri = Uri.parse("file:///sdcard/formats/" + address
                    + ".JPEG");

            final Intent intent = new Intent("com.android.camera.action.CROP");

            // 照片URL地址
            intent.setDataAndType(uri, "image/*");

            intent.putExtra("crop", "true");
            intent.putExtra("aspectX", 1);
            intent.putExtra("aspectY", 1);
            intent.putExtra("outputX", 480);
            intent.putExtra("outputY", 480);
            // 輸出路徑
            intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
            // 輸出格式
            intent.putExtra("outputFormat",
                    Bitmap.CompressFormat.JPEG.toString());
            // 不啓用人臉識別
            intent.putExtra("noFaceDetection", false);
            intent.putExtra("return-data", false);
            startActivityForResult(intent, CUT_PHOTO_REQUEST_CODE);

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    protected void onDestroy() {

        FileUtils.deleteDir(FileUtils.SDPATH);
        FileUtils.deleteDir(FileUtils.SDPATH1);
        // 清理圖片緩存
        for (int i = 0; i < bmp.size(); i++) {
            bmp.get(i).recycle();
        }
        for (int i = 0; i < PhotoActivity.bitmap.size(); i++) {
            PhotoActivity.bitmap.get(i).recycle();
        }
        PhotoActivity.bitmap.clear();
        bmp.clear();
        drr.clear();
        super.onDestroy();
    }

    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        ((InputMethodManager) getSystemService(INPUT_METHOD_SERVICE))
                .hideSoftInputFromWindow(MainActivity.this
                        .getCurrentFocus().getWindowToken(),
                        InputMethodManager.HIDE_NOT_ALWAYS);
        if (arg2 == bmp.size()) {
            String sdcardState = Environment.getExternalStorageState();
            if (Environment.MEDIA_MOUNTED.equals(sdcardState)) {
                new PopupWindows(MainActivity.this, gridview);
            } else {
                Toast.makeText(getApplicationContext(), "sdcard已拔出，不能選擇照片",
                        Toast.LENGTH_SHORT).show();
            }
        } else {
            Intent intent = new Intent(MainActivity.this,
                    PhotoActivity.class);

            intent.putExtra("ID", arg2);
            startActivity(intent);
        }
    }

}

2. 圖片壓縮處理類Bimp

package com.dynamic;

import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.RectF;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.provider.ContactsContract.Contacts.Photo;

/**
 * 壓縮圖片
 * 
 * @author Administrator
 * 
 */
public class Bimp {
    public static int max = 0;
    public static boolean act_bool = true;
    public static List<Bitmap> bmp = new ArrayList<Bitmap>();

    // 圖片sd地址 上傳服務器時把圖片調用下面方法壓縮後 保存到臨時文件夾 圖片壓縮後小於100KB，失真度不明顯
    public static List<String> drr = new ArrayList<String>();

    // TelephonyManager tm = (TelephonyManager) this
    // .getSystemService(Context.TELEPHONY_SERVICE);

    public static Bitmap revitionImageSize(String path) throws IOException {
        BufferedInputStream in = new BufferedInputStream(new FileInputStream(
                new File(path)));

        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        // Bitmap btBitmap=BitmapFactory.decodeFile(path);
        // System.out.println("原尺寸高度："+btBitmap.getHeight());
        // System.out.println("原尺寸寬度："+btBitmap.getWidth());
        BitmapFactory.decodeStream(in, null, options);
        in.close();
        int i = 0;
        Bitmap bitmap = null;
        while (true) {
            if ((options.outWidth >> i <= 800)
                    && (options.outHeight >> i <= 800)) {
                in = new BufferedInputStream(
                        new FileInputStream(new File(path)));
                options.inSampleSize = (int) Math.pow(2.0D, i);
                options.inJustDecodeBounds = false;
                bitmap = BitmapFactory.decodeStream(in, null, options);
                break;
            }
            i += 1;
        }
        // 當機型爲三星時圖片翻轉
//      bitmap = Photo.photoAdapter(path, bitmap);
//      System.out.println("-----壓縮後尺寸高度：" + bitmap.getHeight());
//      System.out.println("-----壓縮後尺寸寬度度：" + bitmap.getWidth());
        return bitmap;
    }

    public static Bitmap getLoacalBitmap(String url) {
        try {
            FileInputStream fis = new FileInputStream(url);
            return BitmapFactory.decodeStream(fis); // /把流轉化爲Bitmap圖片

        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 
     * @param x
     *            圖像的寬度
     * @param y
     *            圖像的高度
     * @param image
     *            源圖片
     * @param outerRadiusRat
     *            圓角的大小
     * @return 圓角圖片
     */
    public static Bitmap createFramedPhoto(int x, int y, Bitmap image, float outerRadiusRat) {
        // 根據源文件新建一個darwable對象
        Drawable imageDrawable = new BitmapDrawable(image);

        // 新建一個新的輸出圖片
        Bitmap output = Bitmap.createBitmap(x, y, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        // 新建一個矩形
        RectF outerRect = new RectF(0, 0, x, y);

        // 產生一個紅色的圓角矩形
        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        paint.setColor(Color.RED);
        canvas.drawRoundRect(outerRect, outerRadiusRat, outerRadiusRat, paint);

        // 將源圖片繪製到這個圓角矩形上
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        imageDrawable.setBounds(0, 0, x, y);
        canvas.saveLayer(outerRect, paint, Canvas.ALL_SAVE_FLAG);
        imageDrawable.draw(canvas);
        canvas.restore();

        return output;
    }
}

4. 文件處理類FileUtils

package com.dynamic;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.graphics.Bitmap;
import android.os.Environment;
import android.util.Log;

public class FileUtils {

    public static String SDPATH = Environment.getExternalStorageDirectory()
            + "/formats/";
    public static String SDPATH1 = Environment.getExternalStorageDirectory()
        + "/myimages/";
    public static void saveBitmap(Bitmap bm, String picName) {
        Log.e("", "保存圖片");
        try {
            if (!isFileExist("")) {
                File tempf = createSDDir("");
            }
            File f = new File(SDPATH, picName + ".JPEG"); 
            if (f.exists()) {
                f.delete();
            }
            FileOutputStream out = new FileOutputStream(f);
            bm.compress(Bitmap.CompressFormat.JPEG, 90, out);
            out.flush();
            out.close();
            Log.e("", "已經保存");
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static File createSDDir(String dirName) throws IOException {
        File dir = new File(SDPATH + dirName);
        if (Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED)) {

            System.out.println("createSDDir:" + dir.getAbsolutePath());
            System.out.println("createSDDir:" + dir.mkdir());
        }
        return dir;
    }

    public static boolean isFileExist(String fileName) {
        File file = new File(SDPATH + fileName);
        file.isFile();
        return file.exists();
    }

    public static void delFile(String fileName){
        File file = new File(SDPATH + fileName);
        if(file.isFile()){
            file.delete();
        }
        file.exists();
    }

    public static void deleteDir(String path) {
        File dir = new File(path);
        if (dir == null || !dir.exists() || !dir.isDirectory())
            return;

        for (File file : dir.listFiles()) {
            if (file.isFile())
                file.delete(); // 刪除所有文件
            else if (file.isDirectory())
                deleteDir(path); // 遞規的方式刪除文件夾
        }
        dir.delete();// 刪除目錄本身
    }

    public static boolean fileIsExists(String path) {
        try {
            File f = new File(path);
            if (!f.exists()) {
                return false;
            }
        } catch (Exception e) {

            return false;
        }
        return true;
    }

}

4. 圖片選擇類PhotoActivity

package com.dynamic;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;


public class PhotoActivity extends Activity {

    private ArrayList<View> listViews = null;
    private ViewPager pager;
    private MyPageAdapter adapter;

    public static List<Bitmap> bitmap = new ArrayList<Bitmap>();

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_photo);

        pager = (ViewPager) findViewById(R.id.viewpager);
        pager.setOnPageChangeListener(pageChangeListener);
        for (int i = 0; i < bitmap.size(); i++) {
            initListViews(bitmap.get(i));//
        }

        adapter = new MyPageAdapter(listViews);// 構造adapter
        pager.setAdapter(adapter);// 設置適配器
        Intent intent = getIntent();
        int id = intent.getIntExtra("ID", 0);
        pager.setCurrentItem(id);
    }

    private void initListViews(Bitmap bm) {
        if (listViews == null)
            listViews = new ArrayList<View>();
        ImageView img = new ImageView(this);// 構造textView對象
        img.setBackgroundColor(0xff000000);
        img.setImageBitmap(bm);
        img.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
                LayoutParams.FILL_PARENT));
        listViews.add(img);// 添加view
    }

    private OnPageChangeListener pageChangeListener = new OnPageChangeListener() {

        public void onPageSelected(int arg0) {// 頁面選擇響應函數
        // count = arg0;
        }

        public void onPageScrolled(int arg0, float arg1, int arg2) {// 滑動中。。。

        }

        public void onPageScrollStateChanged(int arg0) {// 滑動狀態改變

        }
    };

    class MyPageAdapter extends PagerAdapter {

        private ArrayList<View> listViews;// content

        private int size;// 頁數

        public MyPageAdapter(ArrayList<View> listViews) {// 構造函數
                                                            // 初始化viewpager的時候給的一個頁面
            this.listViews = listViews;
            size = listViews == null ? 0 : listViews.size();
        }

        public void setListViews(ArrayList<View> listViews) {// 自己寫的一個方法用來添加數據
            this.listViews = listViews;
            size = listViews == null ? 0 : listViews.size();
        }

        public int getCount() {// 返回數量
            return size;
        }

        public int getItemPosition(Object object) {
            return POSITION_NONE;
        }

        public void destroyItem(View arg0, int arg1, Object arg2) {// 銷燬view對象
            ((ViewPager) arg0).removeView(listViews.get(arg1 % size));
        }

        public void finishUpdate(View arg0) {
        }

        public Object instantiateItem(View arg0, int arg1) {// 返回view對象
            try {
                ((ViewPager) arg0).addView(listViews.get(arg1 % size), 0);

            } catch (Exception e) {
            }
            return listViews.get(arg1 % size);
        }

        public boolean isViewFromObject(View arg0, Object arg1) {
            return arg0 == arg1;
        }

    }
}

代碼下載