话不多说，直接给出一个工具类，想要的拿去
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package com.locinengine.utils;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.view.ContextThemeWrapper;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.Toast;
/**
* 照片选择
*
* @author larsonzhong@163.com
*
*/
public class PhotoPickUtil {
private final int _2000 = 2000;
private Activity activityContext;
private Fragment fragmentContext;
private OnPhotoPickedlistener onPhotoPickedlistener;
public PhotoPickUtil(Activity context,
OnPhotoPickedlistener onPhotoPickedlistener) {
super();
this.activityContext = context;
this.onPhotoPickedlistener = onPhotoPickedlistener;
}
public PhotoPickUtil(Activity activityContext, Fragment fragmentContext,
OnPhotoPickedlistener onPhotoPickedlistener) {
super();
this.activityContext = activityContext;
this.fragmentContext = fragmentContext;
this.onPhotoPickedlistener = onPhotoPickedlistener;
}
/**
在调用的activity或fragment的onActivityResult(...)中调用次方法，处理拍照/相册返回的数据
*/
public void pickResult(int requestCode, int resultCode, Intent data) {
if (resultCode != Activity.RESULT_OK)
return;
switch (requestCode) {
case CROPED_PHOTO: // 调用图片裁剪返回的
Bitmap img = data.getParcelableExtra("data");
if (onPhotoPickedlistener != null) {
onPhotoPickedlistener.photoPicked(null, img);
}
break;
case CAMERA_WITH_DATA: // 照相机程序返回的
if (doCrop) {
doCropPhoto(mCurrentPhotoFile, cropWidth, cropHeight);
} else {
if (onPhotoPickedlistener != null) {
onPhotoPickedlistener.photoPicked(
mCurrentPhotoFile.getPath(), null);
mCurrentPhotoFile = null;
}
}
break;
case PHOTO_PICKED:
Uri originalUri = data.getData(); // 调用相册选择返回的图片
String path = getGalleryImgPath(originalUri);
if (doCrop) {
doCropPhoto(new File(path), cropWidth, cropHeight);
} else {
if (onPhotoPickedlistener != null) {
onPhotoPickedlistener.photoPicked(path, null);
}
}
break;
}
}
private boolean doCrop;
private int cropWidth;
private int cropHeight;
/*
* 用来标识请求照相功能的 activity
*/
public final int CAMERA_WITH_DATA = 3023;
/*
* 用来标识请求 gallery 的 activity
*/
public final int CAMERA_CROP = 3022;
/*
* 用来标识请求 gallery 的 activity
*/
public final int CROPED_PHOTO = 3021;
public final int PHOTO_PICKED = 3024;
/*
* 拍照的照片存储位置
*/
private final File PHOTO_DIR_SD = new File(
Environment.getExternalStorageDirectory() + "/DCIM/Camera");
private final File PHOTO_DIR_ROOT = new File(Environment.getRootDirectory()
+ "/DCIM/Camera");
private File mCurrentPhotoFile;// 照相机拍照得到的图片
/**
* 有取消选择的图片（需设置监听器），拍照和选择图片3个选项
*
* @param activity
* @param cropImg
* @param outWith
* @param outHeight
* @param cancelClickListener
*/
public void doPickPhotoAction(final boolean cropImg, final int outWith,
final int outHeight,
final OnPickPhotoCancelClickListener cancelClickListener) {
this.doCrop = cropImg;
this.cropWidth = outWith;
this.cropHeight = outHeight;
File dir = null;
// showToast(activity, "若添加实时拍摄照片导致重启，请尝试在应用外拍照，再选择从相册中获取进行添加！");
String status = Environment.getExternalStorageState();
if (status.equals(Environment.MEDIA_MOUNTED)) {// 判断是否有SD卡
dir = PHOTO_DIR_SD;
} else {
dir = PHOTO_DIR_ROOT;
}
if (!dir.exists()) {
dir.mkdirs();// 创建照片的存储目录
}
mCurrentPhotoFile = new File(dir, getImgName());// 给新照的照片文件命名
// Wrap our context to inflate list items using correct theme
Context dialogContext = new ContextThemeWrapper(activityContext,
android.R.style.Theme_Light);
String cancel = "返回";
String[] choices = new String[3];
choices[0] = "清除";//
choices[1] = "拍照";// getString(MediaStore.ACTION_IMAGE_CAPTURE); //拍照
choices[2] = "从相册选择图片";// getString(R.string.pick_photo); //从相册中选择
ListAdapter adapter = new ArrayAdapter<String>(dialogContext,
android.R.layout.simple_list_item_1, choices);
AlertDialog.Builder builder = new AlertDialog.Builder(dialogContext);
builder.setTitle("选择图片");
builder.setSingleChoiceItems(adapter, -1,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
switch (which) {
case 0:
if (cancelClickListener != null) {
cancelClickListener.onClick();
}
dialog.dismiss();
break;
case 1: {
doTakePhoto();
break;
}
case 2:
doPickPhotoFromGallery();// 从相册中去获取
break;
}
}
});
builder.setNegativeButton(cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
/**
* 只有拍照和选择照片两个选项
*
* @param activity
* @param cropImg
* @param outWith
* @param outHeight
*/
public void doPickPhotoAction(final boolean cropImg, final int outWith,
final int outHeight) {
this.doCrop = cropImg;
this.cropWidth = outWith;
this.cropHeight = outHeight;
File dir = null;
// showToast(activity, "若添加实时拍摄照片导致重启，请尝试在应用外拍照，再选择从相册中获取进行添加！");
String status = Environment.getExternalStorageState();
if (status.equals(Environment.MEDIA_MOUNTED)) {// 判断是否有SD卡
dir = PHOTO_DIR_SD;
} else {
dir = PHOTO_DIR_ROOT;
}
if (!dir.exists()) {
dir.mkdirs();// 创建照片的存储目录
}
mCurrentPhotoFile = new File(dir, getImgName());// 给新照的照片文件命名
// Wrap our context to inflate list items using correct theme
Context dialogContext = new ContextThemeWrapper(activityContext,
android.R.style.Theme_Light);
String cancel = "返回";
String[] choices = new String[2];
choices[0] = "拍照";// getString(MediaStore.ACTION_IMAGE_CAPTURE); //拍照
choices[1] = "从相册选择图片";// getString(R.string.pick_photo); //从相册中选择
ListAdapter adapter = new ArrayAdapter<String>(dialogContext,
android.R.layout.simple_list_item_1, choices);
AlertDialog.Builder builder = new AlertDialog.Builder(dialogContext);
builder.setTitle("选择图片");
builder.setSingleChoiceItems(adapter, -1,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
switch (which) {
case 0: {
doTakePhoto();
break;
}
case 1:
doPickPhotoFromGallery();// 从相册中去获取
break;
}
}
});
builder.setNegativeButton(cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
/**
* 拍照获取图片
*
* @param cropImg
*
*/
private void doTakePhoto() {
try {
final Intent intent = getTakePickIntent(mCurrentPhotoFile);
if (fragmentContext != null)
fragmentContext
.startActivityForResult(intent, CAMERA_WITH_DATA);
else
activityContext
.startActivityForResult(intent, CAMERA_WITH_DATA);
} catch (ActivityNotFoundException e) {
e.printStackTrace();
Toast.makeText(activityContext, "图片获取失败", _2000).show();
}
}
private Intent getTakePickIntent(File f) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE, null);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
if (doCrop) {
intent.putExtra("return-data", true);
}
return intent;
}
// 请求Gallery程序
private void doPickPhotoFromGallery() {
try {
// Launch picker to choose photo for selected contact
final Intent intent = getPhotoPickIntent();
if (fragmentContext != null)
fragmentContext.startActivityForResult(intent, PHOTO_PICKED);
else
activityContext.startActivityForResult(intent, PHOTO_PICKED);
} catch (ActivityNotFoundException e) {
e.printStackTrace();
Toast.makeText(activityContext, "图片获取失败", _2000).show();
}
}
// 封装请求Gallery的intent
private Intent getPhotoPickIntent() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
intent.setType("image/*");
// if (cropImg) {
// intent.putExtra("crop", "true");
// // 设置裁剪框高宽比例和输出的图片尺寸，不设为原始尺寸
// // if (outHeight > outWith) {
// // intent.putExtra("aspectX", 1);
// // intent.putExtra("aspectY", outHeight / outWith);
// // } else if (outWith > outHeight) {
// intent.putExtra("aspectX", outWith);
// intent.putExtra("aspectY", outHeight);
// // }
// intent.putExtra("outputX", outWith);
// intent.putExtra("outputY", outHeight);
// // 设置使系统返回图片bitmap对象
// intent.putExtra("return-data", true);
// }
return intent;
}
private void doCropPhoto(File f, int outWith, int outHeight) {
try {
// 启动gallery去剪辑这个照片
final Intent intent = getCropImageIntent(Uri.fromFile(f), outWith,
outHeight);
if (fragmentContext != null)
fragmentContext.startActivityForResult(intent, CROPED_PHOTO);
else
activityContext.startActivityForResult(intent, CROPED_PHOTO);
} catch (Exception e) {
Toast.makeText(activityContext, "图片获取失败", _2000).show();
}
}
/**
* Constructs an intent for image cropping. 调用图片剪辑程序
*/
private Intent getCropImageIntent(Uri photoUri, int outWith, int outHeight) {
Intent intent = new Intent("com.android.camera.action.CROP")
.setDataAndType(photoUri, "image/*").putExtra("crop", "true")
.putExtra("return-data", true);
// .putExtra("scale", true)
// // 黑边
// .putExtra("scaleUpIfNeeded", true)
// // 黑边
intent.putExtra("aspectX", outWith);
intent.putExtra("aspectY", outHeight);
intent.putExtra("outputX", outWith);
intent.putExtra("outputY", outHeight);
return intent;
}
@SuppressWarnings("deprecation")
private String getGalleryImgPath(Uri photoUri) {
// 这里开始的第二部分，获取图片的路径：
String[] proj = { MediaStore.Images.Media.DATA };
// 好像是android多媒体数据库的封装接口，具体的看Android文档
Cursor cursor = activityContext.managedQuery(photoUri, proj, null,
null, null);
// 按我个人理解 这个是获得用户选择的图片的索引值
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
// 将光标移至开头 ，这个很重要，不小心很容易引起越界
cursor.moveToFirst();
// 最后根据索引值获取图片路径
String path = cursor.getString(column_index);
return path;
}
@SuppressLint("SimpleDateFormat")
private String getImgName() {
SimpleDateFormat sdf = new SimpleDateFormat();
sdf.applyPattern("yyyyMMdd_HHmmsss");
StringBuilder result = new StringBuilder("IMG_");
result.append(sdf.format(new Date()) + (int) (Math.random() * 100))
.append(".jpg");
return result.toString();
}
public interface OnPhotoPickedlistener {
public void photoPicked(String path, Bitmap bmp);
}
public interface OnPickPhotoCancelClickListener {
public void onClick();
}
}
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原文：http://zhonglunshun.iteye.com/blog/2274319