package net.oschina.gitapp.common;
import static net.oschina.gitapp.common.Contanst.*;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.util.regex.Pattern;
//import com.umeng.socialize.bean.SHARE_MEDIA;
//import com.umeng.socialize.controller.UMServiceFactory;
//import com.umeng.socialize.controller.UMSocialService;
//import com.umeng.socialize.media.QQShareContent;
//import com.umeng.socialize.media.SinaShareContent;
//import com.umeng.socialize.media.UMImage;
//import com.umeng.socialize.sso.SinaSsoHandler;
//import com.umeng.socialize.sso.UMQQSsoHandler;
//import com.umeng.socialize.weixin.controller.UMWXHandler;
//import com.umeng.socialize.weixin.media.CircleShareContent;
//import com.umeng.socialize.weixin.media.WeiXinShareContent;
import net.oschina.gitapp.AppContext;
import net.oschina.gitapp.AppException;
import net.oschina.gitapp.AppManager;
import net.oschina.gitapp.R;
import net.oschina.gitapp.api.ApiClient;
import net.oschina.gitapp.bean.Commit;
import net.oschina.gitapp.bean.CommitDiff;
import net.oschina.gitapp.bean.Event;
import net.oschina.gitapp.bean.Issue;
import net.oschina.gitapp.bean.Project;
import net.oschina.gitapp.bean.User;
import net.oschina.gitapp.ui.CodeFileDetailActivity;
import net.oschina.gitapp.ui.CommitDetailActivity;
import net.oschina.gitapp.ui.CommitFileDetailActivity;
import net.oschina.gitapp.ui.ImageZoomActivity;
import net.oschina.gitapp.ui.IssueDetailActivity;
import net.oschina.gitapp.ui.IssueEditActivity;
import net.oschina.gitapp.ui.LoginActivity;
import net.oschina.gitapp.ui.MainActivity;
import net.oschina.gitapp.ui.NotificationActivity;
import net.oschina.gitapp.ui.ProjectActivity;
import net.oschina.gitapp.ui.ProjectCodeActivity;
import net.oschina.gitapp.ui.ProjectSomeInfoListActivity;
import net.oschina.gitapp.ui.ProjectReadMeActivity;
import net.oschina.gitapp.ui.SearchActivity;
import net.oschina.gitapp.ui.MySelfInfoActivity;
import net.oschina.gitapp.ui.ShakeActivity;
import net.oschina.gitapp.ui.UserInfoActivity;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.Html;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.style.AbsoluteSizeSpan;
import android.text.style.ForegroundColorSpan;
import android.text.style.StyleSpan;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;
/**
* 应用程序UI工具包：封装UI相关的一些操作
*
* @author liux (http://my.oschina.net/liux)
* @version 1.0
* @created 2012-3-21
*/
public class UIHelper {
/** 表情图片匹配 */
private static Pattern facePattern = Pattern
.compile("\\[{1}([0-9]\\d*)\\]{1}");
/** 全局web样式 */
public final static String WEB_STYLE = "<style>* {font-size:14px;line-height:20px;} p {color:#333;} a {color:#3E62A6;} img {max-width:310px;} "
+ "img.alignleft {float:left;max-width:120px;margin:0 10px 5px 0;border:1px solid #ccc;background:#fff;padding:2px;} "
+ "a.tag {font-size:15px;text-decoration:none;background-color:#bbd6f3;border-bottom:2px solid #3E6D8E;border-right:2px solid #7F9FB6;color:#284a7b;margin:2px 2px 2px 0;padding:2px 4px;white-space:nowrap;}</style>";
/**
* 发送App异常崩溃报告
*
* @param cont
* @param crashReport
*/
public static void sendAppCrashReport(final Context context,
final String crashReport) {
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setIcon(android.R.drawable.ic_dialog_info);
builder.setCancelable(false);
builder.setTitle(R.string.app_error);
builder.setMessage(R.string.app_error_message);
builder.setPositiveButton(R.string.submit_report,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
// 发送异常报告
Intent i = new Intent(Intent.ACTION_SEND);
// i.setType("text/plain"); //模拟器
i.setType("message/rfc822"); // 真机
// 接收错误报告的邮箱地址
i.putExtra(Intent.EXTRA_EMAIL,
new String[] { "zhangdeyi@oschina.net" });
i.putExtra(Intent.EXTRA_SUBJECT,
"GIT@OSC,Android客户端 - 错误报告");
i.putExtra(Intent.EXTRA_TEXT, crashReport);
context.startActivity(Intent.createChooser(i, "发送错误报告"));
// 退出
AppManager.getAppManager().AppExit(context);
}
});
builder.setNegativeButton(R.string.sure,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
// 退出
AppManager.getAppManager().AppExit(context);
}
});
builder.show();
}
/**
* 点击返回监听事件
*
* @param activity
* @return
*/
public static View.OnClickListener finish(final Activity activity) {
return new View.OnClickListener() {
public void onClick(View v) {
activity.finish();
}
};
}
/**
* 弹出Toast消息
*
* @param msg
*/
public static void ToastMessage(Context cont, String msg) {
Toast.makeText(cont, msg, Toast.LENGTH_SHORT).show();
}
public static void ToastMessage(Context cont, int msg) {
Toast.makeText(cont, msg, Toast.LENGTH_SHORT).show();
}
public static void ToastMessage(Context cont, String msg, int time) {
Toast.makeText(cont, msg, time).show();
}
public static AlertDialog.Builder getDialog(Context context, String title, String message, String... buttonStrs) {
AlertDialog.Builder dialog = new Builder(context);
dialog.setCancelable(false);
dialog.setTitle(title);
dialog.setMessage(message);
dialog.setPositiveButton(buttonStrs[0], new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
return dialog;
}
/**
* 分析并组合动态的标题
*
* @param author_name
* 动态作者的名称
* @param pAuthor_And_pName
* 项目的作者和项目名
* @param eventTitle
* 事件的title（Issue或者pr或分支）
* @return
*/
public static SpannableString parseEventTitle(String author_name,
String pAuthor_And_pName, Event event) {
String title = "";
String eventTitle = "";
int action = event.getAction();
switch (action) {
case Event.EVENT_TYPE_CREATED:// 创建了issue
eventTitle = event.getTarget_type() + getEventsTitle(event);
title = "在项目 " + pAuthor_And_pName + " 创建了 " + eventTitle;
break;
case Event.EVENT_TYPE_UPDATED:// 更新项目
title = "更新了项目 " + pAuthor_And_pName;
break;
case Event.EVENT_TYPE_CLOSED:// 关闭项目
eventTitle = event.getTarget_type() + getEventsTitle(event);
title = "关闭了项目 " + pAuthor_And_pName + " 的 " + eventTitle;
break;
case Event.EVENT_TYPE_REOPENED:// 重新打开了项目
eventTitle = event.getTarget_type() + getEventsTitle(event);
title = "重新打开了项目 " + pAuthor_And_pName + " 的 " + eventTitle;
break;
case Event.EVENT_TYPE_PUSHED:// push
eventTitle = event.getData().getRef()
.substring(event.getData().getRef().lastIndexOf("/") + 1);
title = "推送到了项目 " + pAuthor_And_pName + " 的 " + eventTitle + " 分支";
break;
case Event.EVENT_TYPE_COMMENTED:// 评论
if (event.getEvents().getIssue() != null) {
eventTitle = "Issues";
} else if (event.getEvents().getPull_request() != null) {
eventTitle = "PullRequest";
}
eventTitle = eventTitle + getEventsTitle(event);
title = "评论了项目 " + pAuthor_And_pName + " 的 " + eventTitle;
break;
case Event.EVENT_TYPE_MERGED:// 合并
eventTitle = event.getTarget_type() + getEventsTitle(event);
title = "接受了项目 " + pAuthor_And_pName + " 的 " + eventTitle;
break;
case Event.EVENT_TYPE_JOINED:// # User joined project
title = "加入了项目 " + pAuthor_And_pName;
break;
case Event.EVENT_TYPE_LEFT:// # User left project
title = "离开了项目 " + pAuthor_And_pName;
break;
case Event.EVENT_TYPE_FORKED:// fork了项目
title = "Fork了项目 " + pAuthor_And_pName;
break;
default:
title = "更新了动态：";
break;
}
title = author_name + " " + title;
SpannableString sps = new SpannableString(title);
// 设置用户名字体大小、加粗、高亮
sps.setSpan(new AbsoluteSizeSpan(14, true), 0, author_name.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
sps.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), 0,
author_name.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
sps.setSpan(new ForegroundColorSpan(Color.parseColor("#0e5986")), 0,
author_name.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
// 设置项目名字体大小和高亮
int start = title.indexOf(pAuthor_And_pName);
int end = start + pAuthor_And_pName.length();
sps.setSpan(new AbsoluteSizeSpan(14, true), start, end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
sps.setSpan(new ForegroundColorSpan(Color.parseColor("#0e5986")),
start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
// 设置动态的title字体大小和高亮
if (!StringUtils.isEmpty(eventTitle) && eventTitle != null) {
start = title.indexOf(eventTitle);
end = start + eventTitle.length();
if (start > 0 && end > 0 && start < end) {
sps.setSpan(new AbsoluteSizeSpan(14, true), start, end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
sps.setSpan(
new ForegroundColorSpan(Color.parseColor("#0e5986")),
start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
return sps;
}
private static String getEventsTitle(Event event) {
String title = "";
if (event.getEvents().getIssue() != null) {
title = " #" + event.getEvents().getIssue().getIid();
}
if (event.getEvents().getPull_request() != null) {
title = " #" + event.getEvents().getPull_request().getIid();
}
return title;
}
/**
* 加载显示用户头像
*
* @param imgFace
* @param faceURL
*/
public static void showUserFace(final ImageView imgFace,
final String faceURL) {
showLoadImage(imgFace, faceURL,
imgFace.getContext().getString(R.string.msg_load_userface_fail));
}
/**
* 加载显示图片
*
* @param imgFace
* @param faceURL
* @param errMsg
*/
public static void showLoadImage(final ImageView imgView,
final String imgURL, final String errMsg) {
// 读取本地图片
if (StringUtils.isEmpty(imgURL) || imgURL.endsWith("portrait.gif")) {
Bitmap bmp = BitmapFactory.decodeResource(imgView.getResources(),
R.drawable.mini_avatar);
imgView.setImageBitmap(bmp);
return;
}
// 是否有缓存图片
final String filename = FileUtils.getFileName(imgURL);
// Environment.getExternalStorageDirectory();返回/sdcard
String filepath = imgView.getContext().getFilesDir() + File.separator
+ filename;
File file = new File(filepath);
if (file.exists()) {
Bitmap bmp = ImageUtils.getBitmap(imgView.getContext(), filename);
imgView.setImageBitmap(bmp);
return;
}
// 从网络获取&写入图片缓存
String _errMsg = imgView.getContext().getString(
R.string.msg_load_image_fail);
if (!StringUtils.isEmpty(errMsg))
_errMsg = errMsg;
final String ErrMsg = _errMsg;
final Handler handler = new Handler() {
public void handleMessage(Message msg) {
if (msg.what == 1 && msg.obj != null) {
imgView.setImageBitmap((Bitmap) msg.obj);
try {
// 写图片缓存
ImageUtils.saveImage(imgView.getContext(), filename,
(Bitmap) msg.obj);
} catch (IOException e) {
e.printStackTrace();
}
} else {
ToastMessage(imgView.getContext(), ErrMsg);
}
}
};
new Thread() {
public void run() {
Message msg = new Message();
try {
Bitmap bmp = ApiClient.getNetBitmap(imgURL);
msg.what = 1;
msg.obj = bmp;
} catch (AppException e) {
e.printStackTrace();
msg.what = -1;
msg.obj = e;
}
handler.sendMessage(msg);
}
}.start();
}
/**
* 清除app缓存
*
* @param activity
*/
public static void clearAppCache(Activity activity) {
final AppContext ac = (AppContext) activity.getApplication();
final Handler handler = new Handler() {
public void handleMessage(Message msg) {
if (msg.what == 1) {
ToastMessage(ac, "缓存清除成功");
} else {
ToastMessage(ac, "缓存清除失败");
}
}
};
new Thread() {
public void run() {
Message msg = new Message();
try {
ac.clearAppCache();
msg.what = 1;
} catch (Exception e) {
e.printStackTrace();
msg.what = -1;
}
handler.sendMessage(msg);
}
}.start();
}
/**
* 显示登录的界面
*
* @param context
*/
public static void showLoginActivity(Context context) {
Intent intent = new Intent(context, LoginActivity.class);
context.startActivity(intent);
}
/**
* 显示项目的详情
*
* @param context
* @param project
* @param projectId
*/
public static void showProjectDetail(Context context, Project project,
String projectId) {
Intent intent = new Intent(context, ProjectActivity.class);
Bundle bundle = new Bundle();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
bundle.putSerializable(PROJECT, project);
bundle.putString(PROJECTID, projectId);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 显示commit详情
*
* @param context
* @param project
* @param commit
*/
public static void showCommitDetail(Context context, Project project,
Commit commit) {
Intent intent = new Intent(context, CommitDetailActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.PROJECT, project);
bundle.putSerializable(Contanst.COMMIT, commit);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 显示commit的Diff详情
*
* @param context
* @param project
* @param commit
* @param commitDiff
*/
public static void showCommitDiffFileDetail(Context context,
Project project, Commit commit, CommitDiff commitDiff) {
Intent intent = new Intent(context, CommitFileDetailActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.PROJECT, project);
bundle.putSerializable(Contanst.COMMIT, commit);
bundle.putSerializable(Contanst.COMMITDIFF, commitDiff);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 显示issue的详情
*
* @param context
* @param project
* @param issue
*/
public static void showIssueDetail(Context context, Project project,
Issue issue, String projectId, String issueId) {
Intent intent = new Intent(context, IssueDetailActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.PROJECT, project);
bundle.putSerializable(Contanst.ISSUE, issue);
bundle.putString(Contanst.PROJECTID, projectId);
bundle.putString(Contanst.ISSUEID, issueId);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 显示issue的编辑或者新增issue的界面
*
* @param context
* @param project
* @param issue
*/
public static void showIssueEditOrCreate(Context context, Project project,
Issue issue) {
Intent intent = new Intent(context, IssueEditActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.PROJECT, project);
bundle.putSerializable(Contanst.ISSUE, issue);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 显示用户信息详情
*
* @param context
*/
public static void showMySelfInfoDetail(Context context) {
Intent intent = new Intent(context, MySelfInfoActivity.class);
context.startActivity(intent);
}
/**
* 显示搜索界面
*
* @param context
*/
public static void showSearch(Context context) {
Intent intent = new Intent(context, SearchActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
/**
* 显示用户详情界面
*
* @param context
* @param user
*/
public static void showUserInfoDetail(Context context, User user,
String user_id) {
Intent intent = new Intent(context, UserInfoActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.USER, user);
bundle.putString(Contanst.USERID, user_id);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 点击动态显示动态详情
*
* @param context
* @param event
*/
public static void showEventDetail(Context context, Event event) {
if (event.getEvents().getIssue() != null) {
showIssueDetail(context, null, null, event.getProject().getId(),
event.getEvents().getIssue().getId());
} else {
showProjectDetail(context, null, event.getProject().getId());
}
}
// 查看代码文件详情
public static void showCodeFileDetail(Context context, String path,
String fileName, String ref, Project project) {
Intent intent = new Intent(context, CodeFileDetailActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.PROJECT, project);
bundle.putString("fileName", fileName);
bundle.putString("path",
path == null || StringUtils.isEmpty(path) ? fileName : path
+ "/" + fileName);
bundle.putString("ref", ref);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 显示项目的readme详情
*
* @param context
* @param project
*/
public static void showProjectReadMeActivity(Context context,
Project project) {
Intent intent = new Intent(context, ProjectReadMeActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.PROJECT, project);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 显示项目的一些列表信息列表
*
* @param context
* @param project
*/
public static void showProjectListActivity(Context context,
Project project, int type) {
Intent intent = new Intent(context, ProjectSomeInfoListActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.PROJECT, project);
bundle.putInt("project_list_type", type);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 显示项目的代码列表
*
* @param context
* @param project
*/
public static void showProjectCodeActivity(Context context, Project project) {
Intent intent = new Intent(context, ProjectCodeActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable(Contanst.PROJECT, project);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 进入主界面
*
* @param context
*/
public static void goMainActivity(Context context) {
Intent intent = new Intent(context, MainActivity.class);
context.startActivity(intent);
}
/**
* 显示图片查看界面
*
* @param context
* @param img_url
*/
public static void showImageZoomActivity(Context context, String img_url) {
Intent intent = new Intent(context, ImageZoomActivity.class);
Bundle bundle = new Bundle();
bundle.putString(Contanst.IMG_URL, img_url);
intent.putExtras(bundle);
context.startActivity(intent);
}
/**
* 打开浏览器
*
* @param context
* @param url
*/
public static void openBrowser(Context context, String url) {
try {
Uri uri = Uri.parse(url);
Intent it = new Intent(Intent.ACTION_VIEW, uri);
context.startActivity(it);
} catch (Exception e) {
e.printStackTrace();
ToastMessage(context, "无法浏览此网页", 500);
}
}
// 发送通知广播
public static void sendBroadCast(Context context, int count) {
if (!((AppContext) context.getApplicationContext()).isLogin()
|| count == 0)
return;
Intent intent = new Intent("net.oschina.gitapp.action.APPWIDGET_UPDATE");
intent.putExtra("count", count);
context.sendBroadcast(intent);
}
/**
* 显示通知详情页面
*
* @param context
*/
public static void showNotificationDetail(Context context) {
Intent intent = new Intent(context, NotificationActivity.class);
context.startActivity(intent);
}
/**
* 显示分享操作
*
* @param context
* @param shareContent
* @param shareImage
*/
public static void showShareOption(Activity context, String title,
String url, String shareContent, Bitmap shareImage) {
// UMImage mUMImgBitmap = new UMImage(context, shareImage);
// // 首先在您的Activity中添加如下成员变量
// final UMSocialService mController = UMServiceFactory
// .getUMSocialService("com.umeng.share");
//
// // appID是你在微信开发平台注册应用的AppID, 这里需要替换成你注册的AppID
// String appID = "wx850b854f6aad6764";
// // 添加微信平台
// UMWXHandler wxHandler = new UMWXHandler(context, appID);
// wxHandler.addToSocialSDK();
// // 设置分享到微信的内容
// WeiXinShareContent weixinContent = new WeiXinShareContent(mUMImgBitmap);
// weixinContent.setShareContent(shareContent);
// weixinContent.setTitle(title);
// weixinContent.setTargetUrl(url);
// weixinContent.setShareImage(mUMImgBitmap);
// wxHandler.mShareMedia = weixinContent;
// mController.setShareMedia(weixinContent);
//
// // 支持微信朋友圈
// UMWXHandler wxCircleHandler = new UMWXHandler(context, appID);
// // 设置朋友圈分享的内容
// CircleShareContent circleMedia = new CircleShareContent();
// circleMedia.setShareContent(shareContent);
// circleMedia.setShareImage(mUMImgBitmap);
// circleMedia.setTargetUrl(url);
// circleMedia.setTitle(title);
// wxCircleHandler.mShareMedia = circleMedia;
// mController.setShareMedia(circleMedia);
// wxCircleHandler.setToCircle(true);
// wxCircleHandler.addToSocialSDK();
//
// // 参数1为当前Activity，参数2为开发者在QQ互联申请的APP ID，参数3为开发者在QQ互联申请的APP kEY.
// UMQQSsoHandler qqSsoHandler = new UMQQSsoHandler(context, "1101982202",
// "GJxJGse5cu9iH4NM");
// QQShareContent qqShareContent = new QQShareContent();
// qqShareContent.setTitle(title);
// qqShareContent.setShareContent(shareContent);
// qqShareContent.setShareImage(mUMImgBitmap);
// qqShareContent.setTargetUrl(url);
// qqSsoHandler.mShareMedia = mUMImgBitmap;
// mController.setShareMedia(qqShareContent);
// qqSsoHandler.addToSocialSDK();
//
// SinaSsoHandler sinaSsoHandler = new SinaSsoHandler();
// SinaShareContent sinaShareContent = new SinaShareContent();
// String form = " 分享自GitOSC移动客户端，好项目尽在https://git.oschina.net";
// sinaShareContent.setShareContent(shareContent + " " + url + form);
// sinaShareContent.setTargetUrl(url);
// sinaShareContent.setShareImage(mUMImgBitmap);
// sinaShareContent.setTitle(title);
// mController.setShareMedia(sinaShareContent);
// mController.getConfig().setSsoHandler(sinaSsoHandler);
// // 移除人人分享操作
// mController.getConfig().removePlatform(SHARE_MEDIA.RENREN,
// SHARE_MEDIA.DOUBAN, SHARE_MEDIA.TENCENT);
//
// mController.openShare(context, false);
}
/**
* 获得屏幕的截图
*
* @param activity
*
* @return
*/
public static Bitmap takeScreenShot(Activity activity) {
// View是你需要截图的View
View view = activity.getWindow().getDecorView();
view.setDrawingCacheEnabled(true);
view.buildDrawingCache();
Bitmap b1 = view.getDrawingCache();
//图片允许最大空间 单位：KB
double maxSize = 100.00;
//将bitmap放至数组中，意在bitmap的大小（与实际读取的原文件要大）
ByteArrayOutputStream baos = new ByteArrayOutputStream();
b1.compress(Bitmap.CompressFormat.JPEG, 70, baos);
byte[] b = baos.toByteArray();
//将字节换成KB
double mid = b.length/1024;
//判断bitmap占用空间是否大于允许最大空间 如果大于则压缩 小于则不压缩
if (mid > maxSize) {
//获取bitmap大小 是允许最大大小的多少倍
double i = mid / maxSize;
//开始压缩 此处用到平方根 将宽带和高度压缩掉对应的平方根倍 （1.保持刻度和高度和原bitmap比率一致，压缩后也达到了最大大小占用空间的大小）
b1 = ImageUtils.zoomBitmap(b1, b1.getWidth() / Math.sqrt(i),
b1.getHeight() / Math.sqrt(i));
}
return b1;
}
}