Android实现拍照+相册+鲁班压缩获取图片

private SystemPictureSelector pictureSelector;
//掉用前请先添加权限pictureSelector.getSystemPhotoByCamera();//相机
pictureSelector.getSystemPhotoByGallery();//相册
//重写onActivityResult方法@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {pictureSelector.bindingActivityForResult(requestCode, resultCode, data);}

清单文件

 file_paths文件

SystemPictureSelector类

public class SystemPictureSelector {public static final int TAKE_PHOTO = 101;public static final int LOCAL_GALLERY = 102;public static final String TAG = "SystemPictureSelector";public static final int REQUEST_TAKE_PHOTO = 2018;public static final int REQUEST_GALLERY_PHOTO = 2019;public static final int REQUEST_CROP_PICTURE = 2020;private Activity mContext;private int mBehavior = 1;private int mAspectX = 1;private int mAspectY = 1;private int mOutputX = 200;private int mOutputY = 200;private String mSavedPath;private boolean mWeatherCrop = false;private OnSystemPictureSelectListener mListener;private File mTargetPhoto;private File mOutputFile;public SystemPictureSelector(Builder builder) {this.mContext = builder.context;this.mAspectX = builder.aspectX;this.mAspectY = builder.aspectY;this.mOutputX = builder.outputX;this.mOutputY = builder.outputY;this.mWeatherCrop = builder.weatherCrop;this.mSavedPath = builder.savedPath;this.mListener = builder.listener;}Uri imgUri = null;/*** get picture by taking photo*/public void getSystemPhotoByCamera() {mSavedPath = getSavedPath();mBehavior = TAKE_PHOTO;File imgFile = new File(mSavedPath);if (!imgFile.getParentFile().exists()) {imgFile.getParentFile().mkdirs();}if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {// 适配Android7.0通过contentResolver获取uriContentValues contentValues = new ContentValues(1);contentValues.put(MediaStore.Images.Media.DATA, imgFile.getAbsolutePath());imgUri = mContext.getApplication().getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues);} else {// 7.0以下通过文件获取uriimgUri = Uri.fromFile(imgFile);}Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);intent.putExtra(MediaStore.EXTRA_OUTPUT, imgUri);mContext.startActivityForResult(intent, REQUEST_TAKE_PHOTO);}/*** get picture by local gallery*/public void getSystemPhotoByGallery() {mBehavior = LOCAL_GALLERY;Intent intent = new Intent(Intent.ACTION_PICK, null);intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");mContext.startActivityForResult(intent, REQUEST_GALLERY_PHOTO);}/*** 采取系统自带方式裁剪图片** @param targetPhoto 需要裁剪的目标图片* @param outputFile  我们指定的输出文件*/private void cropPictureBySystemWay(File targetPhoto, File outputFile) {Intent intent = new Intent("com.android.camera.action.CROP");if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {// android7.0设置输出文件的uriintent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);intent.setDataAndType(getUriByFileForN(mContext, targetPhoto), "image/*");//intent.setDataAndType(file2Uri(mContext,targetPhoto),"image/*");} else {intent.setDataAndType(Uri.fromFile(targetPhoto), "image/*");}//设置图片裁剪区域宽高比intent.putExtra("aspectX", mAspectX);intent.putExtra("aspectY", mAspectY);intent.putExtra("crop", "true");//设置图片裁剪后输出质量（一般来说，值越大，越清晰，但需要根据情况而定）//intent.putExtra("outputX", mOutputX);//intent.putExtra("outputY", mOutputY);intent.putExtra("scale", true);//支持缩放intent.putExtra("return-data", false);intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(outputFile));intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());intent.putExtra("noFaceDetection", true);//取消人脸识别mContext.startActivityForResult(intent, REQUEST_CROP_PICTURE);}/*** 根据文件转换成对应的Uri** @param ctx* @param file* @return*/public static Uri file2Uri(Context ctx, File file) {if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {return FileProvider.getUriForFile(ctx, BuildConfig.APPLICATION_ID + ".fileprovider", file);} else {return Uri.fromFile(file);}}/*** Android7.0根据文件获取uri*/private Uri getUriByFileForN(Context context, File imageFile) {String filePath = imageFile.getAbsolutePath();Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,new String[]{MediaStore.Images.Media._ID},MediaStore.Images.Media.DATA + "=? ",new String[]{filePath}, null);if (cursor != null && cursor.moveToFirst()) {int id = cursor.getInt(cursor.getColumnIndex(MediaStore.MediaColumns._ID));Uri baseUri = Uri.parse("content://media/external/images/media");return Uri.withAppendedPath(baseUri, "" + id);} else {if (imageFile.exists()) {ContentValues values = new ContentValues();values.put(MediaStore.Images.Media.DATA, filePath);return context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);} else {return null;}}}private String getSavedPathByTime() {return getExternalStoragePath() + File.separator + String.valueOf(System.currentTimeMillis()) + ".png";}private String getPhotoPathByUri(Intent data) {Uri sourceUri = data.getData();String[] projection = {MediaStore.Images.Media.DATA};Cursor cursor = mContext.managedQuery(sourceUri, projection, null, null, null);int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);cursor.moveToFirst();String imgPath = cursor.getString(columnIndex);return imgPath;}/*** 获取SD下的对应的应用路径*/private String getExternalStoragePath() {StringBuilder sb = new StringBuilder();sb.append(Environment.getExternalStorageDirectory().getAbsolutePath());sb.append(File.separator);String ROOT_DIR = "Android/data/" + mContext.getPackageName();sb.append(ROOT_DIR);sb.append(File.separator);return sb.toString();}/*** by moos on 2018/05/12* desc:绑定所在activity的onActivityForResult方法，处理回调数据** @param requestCode 请求码* @param resultCode  结果码* @param data        返回结果*/public void bindingActivityForResult(int requestCode, int resultCode, Intent data) {if (resultCode == Activity.RESULT_OK) {switch (requestCode) {case REQUEST_TAKE_PHOTO:// 系统拍照mTargetPhoto = new File(mSavedPath);if (mWeatherCrop) {// 去裁剪mOutputFile = new File(getSavedPathByTime());cropPictureBySystemWay(mTargetPhoto, mOutputFile);} else {// 不裁剪if (mListener != null) {mListener.onSelectedSuccess(mTargetPhoto);mListener.onSelectedMessage("拍照成功～");}}break;case REQUEST_GALLERY_PHOTO:// 本地图库if (data != null) {mTargetPhoto = new File(getPhotoPathByUri(data));if (mWeatherCrop) {// 去裁剪mOutputFile = new File(getSavedPathByTime());cropPictureBySystemWay(mTargetPhoto, mOutputFile);} else {// 不裁剪if (mListener != null) {mListener.onSelectedSuccess(mTargetPhoto);mListener.onSelectedMessage("从本地选取图片成功～");}}} else {mListener.onSelectedMessage("从本地图库获取到的数据为空！");}break;case REQUEST_CROP_PICTURE:// 系统裁剪if (data != null) {Log.d("----------data != ", "null");if (mBehavior == TAKE_PHOTO && mTargetPhoto != null) {}LuBanYaSuo(mOutputFile);} else {Log.d("---------data = ", "null");mListener.onSelectedMessage("系统裁剪失败，无法获取裁剪数据");}break;}}}private void LuBanYaSuo(File file) {Luban.with(mContext).load(file.getAbsolutePath())                   // 传人要压缩的图片列表.ignoreBy(100)                                  // 忽略不压缩图片的大小.setTargetDir(getYaSuoPath())             // 设置压缩后文件存储位置.setCompressListener(new OnCompressListener() { //设置回调@Overridepublic void onStart() {// TODO 压缩开始前调用，可以在方法内启动 loading UI}@Overridepublic void onSuccess(File file) {// TODO 压缩成功后调用，返回压缩后的图片文件if (mListener != null) {mListener.onSelectedSuccess(file);mListener.onSelectedMessage("裁剪成功～");}}@Overridepublic void onError(Throwable e) {// TODO 当压缩过程出现问题时调用}}).launch();}private String getYaSuoPath() {String path = Environment.getExternalStorageDirectory() + "/Luban/image/";File file = new File(path);if (file.mkdirs()) {return path;}return path;}private String getSavedPath() {return Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + String.valueOf(System.currentTimeMillis()) + ".png";}public static class Builder {private Activity context;private OnSystemPictureSelectListener listener;private int aspectX = 1;private int aspectY = 1;private int outputX = 200;private int outputY = 200;private String savedPath = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + String.valueOf(System.currentTimeMillis()) + ".png";private boolean weatherCrop = true;public Builder(Activity context) {this.context = context;}public Builder isCropped(boolean weatherCrop) {this.weatherCrop = weatherCrop;return this;}/*** 为图片设置裁剪的区域比例** @param aspectX width aspect* @param aspectY height aspect* @return*/public Builder setCropSize(int aspectX, int aspectY) {this.aspectX = aspectX;this.aspectY = aspectY;return this;}/*** 为裁剪后的图片设置输出质量** @param outputX output width quality* @param outputY output height quality* @return*/public Builder setOutputSize(int outputX, int outputY) {this.outputX = outputX;this.outputY = outputY;return this;}/*** 为图片设置存储路径** @param path saved path you wanted* @return*/public Builder setOutputPath(String path) {this.savedPath = path;return this;}public Builder setOnSelectListener(OnSystemPictureSelectListener listener) {this.listener = listener;return this;}public SystemPictureSelector create() {return new SystemPictureSelector(this);}}interface OnSystemPictureSelectListener {void onSelectedSuccess(File file);void onSelectedMessage(String message);}
}

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