從相冊獲取圖片及調用相機拍照獲取圖片，最後上傳圖片到服務器，相機上傳圖片

從相冊獲取圖片及調用相機拍照獲取圖片，最後上傳圖片到服務器，相機上傳圖片

調用相機拍照獲取圖片： 跳轉到到拍照界面：   Intent takeIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); //下面這句指定調用相機拍照後的照片存儲的路徑 mSzImageFileName = Long.toString(System.currentTimeMillis()) + ".png"; takeIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), mSzImageFileName))); startActivityForResult(takeIntent, REQUEST_TAKE_PHOTO);   從相冊獲取圖片：  從相冊選擇圖片：   Intent pickIntent = new Intent(Intent.ACTION_PICK, null); // 如果要限制上傳到服務器的圖片類型時可以直接寫如：image/jpeg 、 image/png等的類型 pickIntent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*"); startActivityForResult(pickIntent, REQUEST_PICK_PHOTO);    從相冊返回一張圖片或者拍照返回一張圖片： 監聽返回結果： @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { switch (requestCode) { case REQUEST_PICK_PHOTO:// 直接從相冊獲取 try { startPhotoZoom(data.getData());//跳轉到截圖界面 } catch (NullPointerException e) { e.printStackTrace();// 用戶點擊取消操作 } break; case REQUEST_TAKE_PHOTO:// 調用相機拍照 mHandler.postDelayed(new Runnable() { @Override public void run() { File temp = new File(Environment.getExternalStorageDirectory(), mSzImageFileName); if (temp.exists()) { startPhotoZoom(Uri.fromFile(temp));//跳轉到截圖界面 } } }, 1000); break; case REQUEST_CUT_PHOTO:// 取得裁剪後的圖片 if (data != null) { setPicToView(data);//保存和上傳圖片 } break; }   super.onActivityResult(requestCode, resultCode, data); }   返回圖片後進行裁剪： 裁剪圖片： /** * 裁剪圖片方法實現 */ private void startPhotoZoom(Uri uri) { LogUtil.e("PersonalInformationActivity", "onActivityResult uri" + uri); if (uri != null) { Intent intent = new Intent("com.android.camera.action.CROP"); intent.setDataAndType(uri, "image/*"); // 下面這個crop=true是設置在開啟的Intent中設置顯示的VIEW可裁剪 intent.putExtra("crop", "true"); // aspectX aspectY 是寬高的比例 intent.putExtra("aspectX", 1); intent.putExtra("aspectY", 1); // outputX outputY 是裁剪圖片寬高 intent.putExtra("outputX", 300); intent.putExtra("outputY", 300); intent.putExtra("return-data", true); startActivityForResult(intent, REQUEST_CUT_PHOTO); } }   裁剪後保存和上傳圖片： /** * 保存裁剪之後的圖片數據 * * @param picdata */ private void setPicToView(Intent picdata) { Bundle extras = picdata.getExtras(); if (extras != null) { // 取得SDCard圖片路徑做顯示 Bitmap photo = extras.getParcelable("data"); mSzImageFileName = Long.toString(System.currentTimeMillis()) + ".png"; mImgUrlPath = Environment.getExternalStorageDirectory() + File.separator + "cut_image" + File.separator + mSzImageFileName; try { NetUtil.saveBitmapToFile(photo, mImgUrlPath); } catch (IOException e) { e.printStackTrace(); }     // 新線程後台上傳服務端 new Thread(uploadImageRunnable).start(); } }   上傳圖片的線程： Runnable uploadImageRunnable = new Runnable() { @Override public void run() { Map<String, String> params = new HashMap<>(); params.put("mid", mSzId);//上傳參數 Map<String, File> files = new HashMap<>(); files.put("myUpload", new File(mImgUrlPath));//上傳文件路徑 try { String json = NetUtil.uploadFile(Constants.URL_EDIT_IMG, params, files); //json為服務器返回的數據，可自己解析（如json解析）取得想要的數據 } } } catch (IOException e) { e.printStackTrace(); } } };   保存圖片和上傳圖片的工具類NetUtil ： public class NetUtil { //上傳圖片到服務器 public static String uploadFile(String url, Map<String, String> params, Map<String, File> files) throws IOException { String tempStr = null; String BOUNDARY = java.util.UUID.randomUUID().toString(); String PREFIX = "--", LINEND = "\r\n"; String MULTIPART_FROM_DATA = "multipart/form-data"; String CHARSET = "UTF-8"; HttpURLConnection conn = null; try { URL uri = new URL(url); conn = (HttpURLConnection) uri.openConnection(); conn.setReadTimeout(10 * 1000); // 緩存的最長時間 conn.setDoInput(true);// 允許輸入 conn.setDoOutput(true);// 允許輸出 conn.setUseCaches(false); // 不允許使用緩存 conn.setRequestMethod("POST"); conn.setRequestProperty("connection", "keep-alive"); conn.setRequestProperty("Charsert", "UTF-8"); conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY); // 首先組拼文本類型的參數 StringBuilder sb = new StringBuilder(); for (Map.Entry<String, String> entry : params.entrySet()) { sb.append(PREFIX); sb.append(BOUNDARY); sb.append(LINEND); sb.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"" + LINEND); sb.append("Content-Type: text/plain; charset=" + CHARSET + LINEND); sb.append("Content-Transfer-Encoding: 8bit" + LINEND); sb.append(LINEND); sb.append(entry.getValue()); sb.append(LINEND); } LogUtil.e("NetUtil", "uploadFile sb:" + sb.toString()); DataOutputStream outStream = new DataOutputStream(conn.getOutputStream()); outStream.write(sb.toString().getBytes()); // 發送文件數據 if (files != null) for (Map.Entry<String, File> file : files.entrySet()) { StringBuilder sb1 = new StringBuilder(); sb1.append(PREFIX); sb1.append(BOUNDARY); sb1.append(LINEND); sb1.append("Content-Disposition: form-data; name="+file.getKey()+"; filename=\"" + file.getValue() + "\"" + LINEND); sb1.append("Content-Type: application/octet-stream; charset=" + CHARSET + LINEND); sb1.append(LINEND); LogUtil.e("NetUtil", "uploadFile sb1:" + sb1.toString()); outStream.write(sb1.toString().getBytes()); InputStream is = new FileInputStream(file.getValue()); byte[] buffer = new byte[1024]; int len = 0; while ((len = is.read(buffer)) != -1) { outStream.write(buffer, 0, len); } is.close(); outStream.write(LINEND.getBytes()); } // 請求結束標志 byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes(); outStream.write(end_data); outStream.flush(); outStream.close(); StringBuilder sb2 = new StringBuilder(); BufferedReader in = new BufferedReader(new InputStreamReader(conn .getInputStream(), CHARSET)); String inputLine; while ((inputLine = in.readLine()) != null) { sb2.append(inputLine); } in.close(); tempStr = sb2.toString(); } catch (Exception e) { } finally { if (conn != null) { conn.disconnect(); } } return tempStr; }   /** * Save Bitmap to a file.保存圖片到SD卡。 * * @param bitmap * @return error message if the saving is failed. null if the saving is * successful. * @throws IOException */ public static void saveBitmapToFile(Bitmap bitmap, String _file) throws IOException { BufferedOutputStream os = null; try { File file = new File(_file); int end = _file.lastIndexOf(File.separator); String _filePath = _file.substring(0, end); File filePath = new File(_filePath); if (!filePath.exists()) { filePath.mkdirs(); } file.createNewFile(); os = new BufferedOutputStream(new FileOutputStream(file)); bitmap.compress(Bitmap.CompressFormat.PNG, 100, os); } finally { if (os != null) { try { os.close(); } catch (IOException e) { } } } } }