1. 简介
本次demo中一共封装了两个组件：ImageEditButton 和 ImageEditContainer。其中ImageEditContainer 是在 ImageEditButton，两个组件可单独使用。
在demo中，实现了 图片选择（拍照+本地），裁剪，压缩，保存本地 以及对已选择图片的删除操作（如果有修改需求，也可以使用对应方法进行操作，该方法已添加）；
还有就是 针对 6.0权限的处理问题，本次使用了第三方库 rxpermissions 进行权限的处理。
2.项目主目录结构
3. 功能介绍
MainActivity.java 界面效果图：
ImageEditContainer 组件初始化：
layImageContainer = (ImageEditContainer) findViewById(R.id.lay_image_container); layImageContainer.setEditListener(this); layImageContainer.setBtnImageResource(R.drawable.icon_picture_photograph); layImageContainer.setTotalImageQuantity(3);
如上代码，设置组件的监听，添加按钮展示图，以及最多选择图片个数。
implements ImageEditContainer.ImageEditContainerListener 的实现
@Override public void doAddImage() { PopupWindow mCameraPop = SelectPicturePopupWindowUtils.showSelectPicturePopupWindow(this); if (mCameraPop != null) mCameraPop.showAtLocation(layImageContainer, Gravity.BOTTOM, 0, 0); } @Override public void doEditLocalImage(ImageItem imageItem) { if (imageItem != null) { layImageContainer.updateEditedImageItem(imageItem); } } @Override public void doEditRemoteImage(RemoteImageItem remoteImageItem) { if (remoteImageItem != null) { if (remoteImageItem.isDeleted) { layImageContainer.removeRemoteImageItem(remoteImageItem); } else { layImageContainer.updateRemoteImageItem(remoteImageItem); } } }
当图片选择数量达到最大个数时，添加按钮会消失。效果图如下所示：
图片裁剪 效果图如下所示：
图片可拖拽，缩放
图片选择好后，进行图片压缩：
private void compressImage(String path) { if (TextUtils.isEmpty(path)) { return; } compressImage = compressImage + 1; ImageItem imageItem = new ImageItem(); imageItem.storedPath = path; File file = new File(FilePathUtils.getImageSavePath()); if (!file.exists()) { file.mkdirs(); } String filePath = FilePathUtils.getImageSavePath() + System.currentTimeMillis() + ".jpg"; new Thread(new MyThread(imageItem, path, filePath)).start(); List<String> imagePaths = new ArrayList<>(); imagePaths.add(path); layImageContainer.addNewImageItem(imageItem); }
图片压缩比较慢，要开启个 线程进行压缩:
public class MyThread implements Runnable { private String imgPath; private String outPath; private ImageItem imageItem; public MyThread(ImageItem imageItem, String imgPath, String outPath) { this.imageItem = imageItem; this.imgPath = imgPath; this.outPath = outPath; } public void run() { try { BitmapUtil.compressAndGenImage(imgPath, outPath, 500, false); compressImage = compressImage - 1; imageItem.storedPath = outPath; } catch (IOException e) { compressImage = compressImage - 1; e.printStackTrace(); } } }
使用的压缩方法：
/** * Compress by quality, and generate image to the path specified * * @param imgPath * @param outPath * @param maxSize target will be compressed to be smaller than this size.(kb) * @param needsDelete Whether delete original file after compress * @throws IOException */ public static void compressAndGenImage(String imgPath, String outPath, int maxSize, boolean needsDelete) throws IOException { compressAndGenImage(getBitmap(imgPath), outPath, maxSize); // Delete original file if (needsDelete) { File file = new File(imgPath); if (file.exists()) { file.delete(); } } }
组件 ImageEditContainer 添加图片方法介绍：
可添加本地和网络图片
/** * 添加本地图片 * List<String> storePaths 本地图片路径数组 */ public void addNewImages(List<String> storePaths) { } /** * 添加本地图片 */ public void addNewImageItem(ImageItem imageItem) { } /** * 添加网络图片 */ public void addRemoteImageItem(RemoteImageItem remoteImageItem) { }
组件 ImageEditContainer 其他方法介绍：
/** * 设置组件中 选择按钮的宽高 */ public void setImvHeightAndWidth(int height, int width) { } /** * 设置图片最大数量 */ public void setTotalImageQuantity(int totalImageQuantity) { } /** * 设置图片展示图 */ public void setBtnImageResource(int resid) { } /** * 获取组件中所有图片对象（本地+网络） */ public List<Object> getAllImageItems() { } public void updateEditedImageItem(ImageItem imageItem) { } /** * 更新网络图片 */ public void updateRemoteImageItem(RemoteImageItem remoteImageItem) { } /** * 删除网络图片 */ public void removeRemoteImageItem(RemoteImageItem remoteImageItem) { }
4. 组件代码
1.ImageEditButton.java
/** * Created by dingzuoqiang on 2017/6/20. * Email: 530858106@qq.com */ public class ImageEditButton extends RelativeLayout { private final static String TAG = "ImageEditButton"; private ImageView imvAddImage; private ImageView imvEdit; private int imvHeight; private int imvWidth; public ImageEditButtonListener editButtonListener; public ImageEditButton(Context context) { this(context, null); } public ImageEditButton(Context context, AttributeSet attrs) { super(context, attrs); LayoutInflater.from(context).inflate(R.layout.image_edit_button_view, this, true); imvHeight = CommonUtil.dip2px(getContext(), 70); imvWidth = imvHeight; imvAddImage = (ImageView) findViewById(R.id.imv_add_image); imvEdit = (ImageView) findViewById(R.id.imv_edit); setImvHeightAndWidth(imvHeight, imvWidth); imvAddImage.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { doEditImage(); } }); imvEdit.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { doEditImage2(); } }); } public void setImvHeightAndWidth(int height, int width) { this.imvHeight = height; this.imvWidth = width; ViewGroup.LayoutParams layoutParams = imvAddImage.getLayoutParams(); layoutParams.width = imvHeight; layoutParams.height = imvWidth; imvAddImage.setLayoutParams(layoutParams); } public int getImvHeight() { return imvHeight; } public int getImvWidth() { return imvWidth; } public void setPadding2(int left, int top, int right, int bottom) { this.setPadding(left, top, right, bottom); } public void setBtnImageResource(int resid) { imvAddImage.setImageResource(resid); // ImageLoaderUtils.loadImageFromDrawable(resid, imvAddImage, null); } public void reset() { imvEdit.setVisibility(GONE); } public void setEditButtonListener(ImageEditButtonListener editButtonListener) { this.editButtonListener = editButtonListener; } public BaseImageItem getImageItem() { Object object = this.getTag(); if (object instanceof BaseImageItem) return (BaseImageItem) object; return null; } public void displayUI() { // Object object = this.getTag(); if (object == null) return; if (object instanceof ImageItem) { ImageItem imageItem = (ImageItem) object; if (TextUtils.isEmpty(imageItem.storedPath)) return; File file = new File(imageItem.storedPath); if (file.exists()) { // 其实Glide加载本地图片和加载网络图片调用的方法是一样的,唯一的区别是说加载SD卡的图片需要SD卡的权限,加载网络需要网络权限 Glide.with(getContext()).load(file).crossFade().into(imvAddImage); } } else if (object instanceof RemoteImageItem) { // 如果是 remoteImageItem 则需要从读取图片，同时不可以裁剪 RemoteImageItem remoteImageItem = (RemoteImageItem) object; Glide.with(getContext()).load(remoteImageItem.thumbUrl).centerCrop().crossFade().into(imvAddImage); } // TODO BaseImageItem baseImageItem = (BaseImageItem) object; displayNoteIcons(baseImageItem); } private void displayNoteIcons(BaseImageItem baseImageItem) { imvEdit.setVisibility(VISIBLE); } private void doEditImage() { if (editButtonListener == null) return; Object object = this.getTag(); if (object == null) { // add image editButtonListener.doAddImage(); } else { // if (object instanceof ImageItem) { editButtonListener.doEditLocalImage((ImageItem) object); } else if (object instanceof RemoteImageItem) { editButtonListener.doEditRemoteImage((RemoteImageItem) object); } } } private void doEditImage2() { if (editButtonListener == null) return; Object object = this.getTag(); if (object != null) { // if (object instanceof ImageItem) { ImageItem imageItem = (ImageItem) object; imageItem.isDeleted = true; editButtonListener.doEditLocalImage(imageItem); } else if (object instanceof RemoteImageItem) { RemoteImageItem remoteImageItem = (RemoteImageItem) object; remoteImageItem.isDeleted = true; editButtonListener.doEditRemoteImage(remoteImageItem); } } } public interface ImageEditButtonListener { public void doAddImage(); public void doEditLocalImage(ImageItem imageItem1); public void doEditRemoteImage(RemoteImageItem remoteImageItem); } }
2.ImageEditContainer.java
/** * Created by dingzuoqiang on 2017/6/20. * Email: 530858106@qq.com */ public class ImageEditContainer extends HorizontalScrollView implements ImageEditButton.ImageEditButtonListener { private final static String TAG = "ImageEditContainer"; public ImageEditContainerListener mEditListener; private int idValue = 0; ImageEditButton imbAddImage; ViewGroup buttonsContainer; private int totalImageQuantity = 3;// 总添加数量 private int mBtnBgResid = 0; public ImageEditContainer(Context context) { //super(context); this(context, null); } public ImageEditContainer(Context context, AttributeSet attrs) { super(context, attrs); // LayoutInflater.from(context).inflate(R.layout.image_edit_container, this, true); imbAddImage = (ImageEditButton) findViewById(R.id.imb_add_image); imbAddImage.setEditButtonListener(this); // buttonsContainer = (ViewGroup) findViewById(R.id.lay_container); setHorizontalScrollBarEnabled(false); setHorizontalFadingEdgeEnabled(false); } public void setImvHeightAndWidth(int height, int width) { for (int i = 0; i < buttonsContainer.getChildCount(); i++) { ImageEditButton imageEditButton = (ImageEditButton) buttonsContainer.getChildAt(i); if (imageEditButton == null) continue; imageEditButton.setImvHeightAndWidth(height, width); } } public void setTotalImageQuantity(int totalImageQuantity) { if (totalImageQuantity > 0) this.totalImageQuantity = totalImageQuantity; } public void setBtnImageResource(int resid) { mBtnBgResid = resid; imbAddImage.setBtnImageResource(mBtnBgResid); } public List<Object> getAllImageItems() { List<Object> allItems = new ArrayList<>(); for (int i = 0; i < buttonsContainer.getChildCount(); i++) { ImageEditButton imageEditButton = (ImageEditButton) buttonsContainer.getChildAt(i); if (imageEditButton == null) continue; if (imageEditButton.getTag() == null) continue; allItems.add(imageEditButton.getTag()); } return allItems; } /** * 添加本地图片 */ public void addNewImages(List<String> storePaths) { for (int i = 0; i < storePaths.size(); i++) { String path = storePaths.get(i); ImageItem imageItem = new ImageItem(); imageItem.storedPath = path; imageItem.id = idValue++; Log.i(TAG, "index=" + i + " id=" + imageItem.id); imageItem.index = (buttonsContainer.getChildCount() - 1); addBaseImageItemToContainer(imageItem); } } /** * 添加本地图片 */ public void addNewImageItem(ImageItem imageItem) { if (imageItem == null) return; imageItem.id = idValue++; imageItem.index = (buttonsContainer.getChildCount() - 1); addBaseImageItemToContainer(imageItem); } public void updateEditedImageItem(ImageItem imageItem) { ImageEditButton imageEditButton = getImageEditButtonForImageItemById(imageItem); if (imageEditButton == null) { return; } Object originObj = imageEditButton.getTag(); if (!(originObj instanceof ImageItem)) { if (originObj instanceof RemoteImageItem) { RemoteImageItem remoteItem = (RemoteImageItem) originObj; if (remoteItem.index == imageItem.index) { imageEditButton.setTag(imageItem); imageEditButton.displayUI(); return; } reorderForImageItem(imageItem); } return; } ImageItem originImageItem = (ImageItem) originObj; if (imageItem.isDeleted) { removeButtonContainImageItem(imageItem); resetImageItemIndex(); return; } else { if (originImageItem.index == imageItem.index) { imageEditButton.setTag(imageItem); imageEditButton.displayUI(); return; } reorderForImageItem(imageItem); } } /** * 添加网络图片 */ public void addRemoteImageItem(RemoteImageItem remoteImageItem) { addBaseImageItemToContainer(remoteImageItem); } /** * 更新网络图片 */ public void updateRemoteImageItem(RemoteImageItem remoteImageItem) { ImageEditButton imageEditButton = getImageEditButtonForImageItemById(remoteImageItem); if (imageEditButton == null) { if (getAllImageItems().size() > 0) { List<Object> objectList = getAllImageItems(); for (int i = 0; i < objectList.size(); i++) { BaseImageItem baseImageItem = (BaseImageItem) objectList.get(i); removeButtonContainImageItem(baseImageItem); } // objectList.add(0, remoteImageItem); for (int i = 0; i < objectList.size(); i++) { addRemoteImageItem((RemoteImageItem) objectList.get(i)); } // } else { addRemoteImageItem(remoteImageItem); } return; } BaseImageItem baseImageItem = (BaseImageItem) imageEditButton.getTag(); if (baseImageItem instanceof ImageItem) return; RemoteImageItem originRemoteItem = (RemoteImageItem) baseImageItem; if (remoteImageItem.index == originRemoteItem.index) { // index 相同 只是update imageEditButton.setTag(remoteImageItem); imageEditButton.displayUI(); return; } reorderForImageItem(remoteImageItem); } /** * 删除网络图片 */ public void removeRemoteImageItem(RemoteImageItem remoteImageItem) { ImageEditButton imageEditButton = getImageEditButtonForImageItemById(remoteImageItem); if (null != imageEditButton && null != imageEditButton.getTag()) { BaseImageItem baseImageItem = (BaseImageItem) imageEditButton.getTag(); if (baseImageItem instanceof ImageItem) return; RemoteImageItem originRemoteItem = (RemoteImageItem) baseImageItem; removeButtonContainImageItem(remoteImageItem); resetImageItemIndex(); } } private void reorderForImageItem(BaseImageItem imageItem) { removeButtonContainImageItem(imageItem); List<BaseImageItem> imageItems = new ArrayList<>(); imageItems.add(imageItem); int count = buttonsContainer.getChildCount(); for (int i = imageItem.index; i < count; i++) { ImageEditButton button = (ImageEditButton) buttonsContainer.getChildAt(i); if (button == null) continue; BaseImageItem imageItem1 = (BaseImageItem) button.getTag(); if (imageItem1 == null) continue; imageItems.add(imageItem1); } for (int i = 0; i < imageItems.size(); i++) { BaseImageItem item = imageItems.get(i); removeButtonContainImageItem(item); } // for (int i = 0; i < imageItems.size(); i++) { addBaseImageItemToContainer(imageItems.get(i)); } } private void resetImageItemIndex() { for (int i = 0; i < buttonsContainer.getChildCount(); i++) { try { ImageEditButton button = (ImageEditButton) buttonsContainer.getChildAt(i); if (button == null) continue; BaseImageItem imageItem = (BaseImageItem) button.getTag(); if (imageItem == null) continue; imageItem.index = i; } catch (Exception ignored) { } } } private ImageEditButton getImageEditButtonForImageItemById(BaseImageItem imageItem) { for (int i = 0; i < buttonsContainer.getChildCount(); i++) { ImageEditButton imageEditButton = (ImageEditButton) buttonsContainer.getChildAt(i); if (imageEditButton == null) continue; if (imageEditButton.getImageItem() == null) continue; BaseImageItem searchedImageItem = imageEditButton.getImageItem(); if (imageItem.id.longValue() == searchedImageItem.id.longValue()) { return imageEditButton; } } return null; } /* 删除一个 ImageItem */ private void removeButtonContainImageItem(BaseImageItem imageItem) { ImageEditButton imageEditButton = getImageEditButtonForImageItemById(imageItem); if (imageEditButton == null) return; buttonsContainer.removeView(imageEditButton); resetImageItemIndex(); imbAddImage.setVisibility(buttonsContainer.getChildCount() <= totalImageQuantity ? VISIBLE : GONE); } private void addBaseImageItemToContainer(BaseImageItem imageItem) { buttonsContainer.removeView(imbAddImage); ImageEditButton imageEditButton = new ImageEditButton(getContext()); if (mBtnBgResid != 0) imageEditButton.setBtnImageResource(mBtnBgResid); imageEditButton.setTag(imageItem); imageEditButton.setEditButtonListener(this); // buttonsContainer.addView(imageEditButton, buttonsContainer.getChildCount(), new RelativeLayout.LayoutParams(nSize, imbAddImage.getHeight())); buttonsContainer.addView(imageEditButton, buttonsContainer.getChildCount()); LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) imageEditButton.getLayoutParams(); layoutParams.rightMargin = CommonUtil.dip2px(getContext(), 5); imageEditButton.setLayoutParams(layoutParams); imageEditButton.setImvHeightAndWidth(imbAddImage.getImvHeight(), imbAddImage.getImvWidth()); imageEditButton.displayUI(); // buttonsContainer.addView(imbAddImage, buttonsContainer.getChildCount()); // imbAddImage.setVisibility(buttonsContainer.getChildCount() <= totalImageQuantity ? VISIBLE : GONE); resetImageItemIndex(); } /* ImageEditButton listener */ public void doAddImage() { if (mEditListener != null) { mEditListener.doAddImage(); } } public void doEditLocalImage(ImageItem imageItem) { if (mEditListener != null) { mEditListener.doEditLocalImage(imageItem); } } public void doEditRemoteImage(RemoteImageItem remoteImageItem) { if (mEditListener != null) { mEditListener.doEditRemoteImage(remoteImageItem); } } // ----- public void setEditListener(ImageEditContainerListener editListener) { this.mEditListener = editListener; } // public interface ImageEditContainerListener { public void doAddImage(); public void doEditLocalImage(ImageItem imageItem1); public void doEditRemoteImage(RemoteImageItem remoteImageItem); }
项目下载：ImageEditContainer
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。