需要拍照的界面可以根据自己项目需求直接继承该Activity，附带详细注解,拍照剪切专题会进行详细讲解，，大结局篇给出一个完整的总结，
public abstract class RequestWithTakePhotoActivity extends BaseActivity {private static final String IMAGE_UNSPECIFIED = "image/*";private static final String IMAGE_TMP = "photo_tmp.png";private static final String IMAGE_TMP_2 = "photo_tmp2.png";private static final int TAKE_PHOTO = 0;private static final int PIC_PHOTO = 1;// private static final int CROP_PHOTO = 2;private static final int CROP_BIG_PICTURE = 3;private boolean enableCrop = true;private static final int MAX_LINE = 480;private Uri imageUri;protected PopDialog dialog = null;private ArrayList<Integer> save_images_arr_id = new ArrayList<Integer>();private ArrayList<String> save_images_arr_paths = new ArrayList<String>();public final static int GET_PHOTO_RESULT_ID = 6;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);File outFile = new File(getExternalCacheDir() + "/" + IMAGE_TMP);imageUri = Uri.fromFile(outFile);//测试后会发现并没有进入到onCreate方法//不对，虽然不是构造方法，但是子类实现onCrreate方法的时候的super.onCreate(savedInstanceState);就会指向这里的代码Log.i("ResquestWithTakePotoActivity", "拍照时进入到ResquestWithTakePotoActivity");}protected void enableCrop(boolean flag) {//子类用于设置能否剪切的标志enableCrop = flag;}public void imageChooseItem(boolean isShowSelectPhoto) {LayoutInflater inflater = LayoutInflater.from(this);View view = inflater.inflate(R.layout.take_photo_select, null);view.findViewById(R.id.photo_delete).setVisibility(View.GONE);view.findViewById(R.id.take_photo).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {startActionCamera();//拍照按钮点击后，启动照相机if (dialog != null) {dialog.cancel();}}});if (isShowSelectPhoto) {view.findViewById(R.id.pic_photo).setVisibility(View.VISIBLE);view.findViewById(R.id.take_photo_line).setVisibility(View.VISIBLE);view.findViewById(R.id.pic_photo).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// startImagePick();SelectPhoto();if (dialog != null) {dialog.cancel();}}});} else {view.findViewById(R.id.take_photo_line).setVisibility(View.GONE);view.findViewById(R.id.pic_photo).setVisibility(View.GONE);}dialog = DialogUtil.showInfo(this,getResources().getString(R.string.title_select), view,new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {dialog.cancel();}}, false, false);}public void imageChooseItemWithDelete(int type, final int index,boolean isSetBitmap) {LayoutInflater inflater = LayoutInflater.from(this);View view = inflater.inflate(R.layout.take_photo_select, null);Log.e("hf:issetbitamp", isSetBitmap + "");if (isSetBitmap) {view.findViewById(R.id.take_photo_line).setVisibility(View.VISIBLE);view.findViewById(R.id.photo_delete).setVisibility(View.VISIBLE);} else {view.findViewById(R.id.photo_delete).setVisibility(View.GONE);view.findViewById(R.id.take_photo_line).setVisibility(View.GONE);}view.findViewById(R.id.pic_photo).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// startImagePick();SelectPhoto();if (dialog != null) {dialog.cancel();}}});view.findViewById(R.id.take_photo).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {startActionCamera();if (dialog != null) {dialog.cancel();}}});view.findViewById(R.id.photo_delete).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {deleteImage(index);if (dialog != null) {dialog.cancel();}}});dialog = DialogUtil.showInfo(this,getResources().getString(R.string.title_select), view,new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {dialog.cancel();}}, false, false);}abstract protected void deleteImage(int index);private void startActionCamera() {//以startActivityForResult的方式跳转到照相机界面Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);// action is// captureintent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);//另存图片地址 startActivityForResult(intent, TAKE_PHOTO);}private void startImagePick(Uri uri) {Intent intent = new Intent("com.android.camera.action.CROP");intent.setDataAndType(uri, "image/*");intent.putExtra("crop", "true");intent.putExtra("aspectX", getCropX());intent.putExtra("aspectY", getCropY());intent.putExtra("outputX", getCropWidth());intent.putExtra("outputY", getCropHeight());intent.putExtra("scale", true);intent.putExtra("return-data", false);intent.putExtra("scaleUpIfNeeded", true);// 解决当图片大小小于输出大小时，部分机器截取图片黑边intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());intent.putExtra("noFaceDetection", false); // no face detectionstartActivityForResult(intent, PIC_PHOTO);}private void SelectPhoto() {Intent intent = new Intent();intent.setClass(this, SelectFromPhotoAlbumActivity.class);intent.putExtra("TYPE", "single_pic");intent.putExtra("SELECTED_IMAGES", save_images_arr_paths);intent.putExtra("SELECTED_IMAGES_ID", save_images_arr_id);startActivityForResult(intent, GET_PHOTO_RESULT_ID);}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {switch (requestCode) {case TAKE_PHOTO:Log.e("hfdd:", imageUri + "");if (resultCode != Activity.RESULT_CANCELED) {cropImageUri(imageUri, CROP_BIG_PICTURE);}break;case CROP_BIG_PICTURE:// from crop_big_pictureLog.e("hf:", imageUri + "");if (imageUri != null) {Bitmap bitmap = decodeUriAsBitmap(imageUri);onImageCroped(bitmap);} else {return;}break;case PIC_PHOTO:if (imageUri != null) {Bitmap bitmap = decodeUriAsBitmap(imageUri);onImageCroped(bitmap);} else {return;}break;case GET_PHOTO_RESULT_ID:if (data != null) {ArrayList<Integer> images_arr_id = data.getIntegerArrayListExtra("select_photos");ArrayList<String> images_arr_paths = data.getStringArrayListExtra("select_photos_paths");Uri uri = Uri.parse("file://" + images_arr_paths.get(0));startImagePick(uri);}break;}super.onActivityResult(requestCode, resultCode, data);}private Bitmap decodeUriAsBitmap(Uri uri) {Bitmap bitmap = null;try {bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(uri));} catch (FileNotFoundException e) {e.printStackTrace();return null;}return bitmap;}private void cropImageUri(Uri uri, int requestCode) {Intent intent = new Intent("com.android.camera.action.CROP");intent.setDataAndType(uri, "image/*");intent.putExtra("crop", "true");intent.putExtra("aspectX", getCropX());intent.putExtra("aspectY", getCropY());intent.putExtra("outputX", getCropWidth());intent.putExtra("outputY", getCropHeight());intent.putExtra("scale", true);intent.putExtra("scaleUpIfNeeded", true);// 解决当图片大小小于输出大小时，部分机器截取图片黑边intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);intent.putExtra("return-data", false);intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());intent.putExtra("noFaceDetection", true); // no face detectionstartActivityForResult(intent, requestCode);}protected boolean savePicture(Bitmap image, File picture) {if (!picture.exists()) {try {File path = new File(picture.getParent());if (!path.exists()) {if (!path.mkdirs()) {return false;}}if (!picture.createNewFile()) {return false;}} catch (IOException e) {e.printStackTrace();return false;}}BufferedOutputStream stream;try {stream = new BufferedOutputStream(new FileOutputStream(picture));image.compress(Bitmap.CompressFormat.JPEG, 100, stream);stream.close();} catch (Exception e) {e.printStackTrace();return false;}return true;}abstract protected int getCropWidth();abstract protected int getCropHeight();abstract protected int getCropX();abstract protected int getCropY();abstract protected void onImageCroped(Bitmap image);abstract protected void onImageSelected(Uri uri);}
有一种旅行，叫单车旅行。它没有奢侈准备，
