Android实现微博分享及其注意事项

在前面我写了两篇关于QQ和微信的分享（http://blog.csdn.net/dawanganban/article/details/42015249）（http://blog.csdn.net/dawanganban/article/details/40478317）这一篇我们来看以怎样实现微博分享功能。

微博的參考文档在开放平台上转悠了半天，没有找到，终于才惊奇的发如今SDK的Demo中。还是我的老思路，遇到这样的第三方接入的最快最好的入手点就是入门文档和官方Demo,打开Demo我们就会看到相关文档和源代码，因为前面的APPID的申请和QQ、微信差点儿相同，所以我在这里就不反复了，能够參考一下上面的两篇文章。接下来我就将我封装好的源代码粘出来例如以下：

public class SinaShareManager{
/**
* 文字
*/
public static final int SINA_SHARE_WAY_TEXT = 1;
/**
* 图片
*/
public static final int SINA_SHARE_WAY_PIC = 2;
/**
* 链接
*/
public static final int SINA_SHARE_WAY_WEBPAGE = 3;

private static String sinaAppKey;
public static final String SCOPE =
"email,direct_messages_read,direct_messages_write,"
+ "friendships_groups_read,friendships_groups_write,statuses_to_me_read,"
+ "follow_app_official_microblog," + "invitation_write";
/** 微博分享的接口实例 */
private IWeiboShareAPI sinaAPI;

public void registSina(Context context){
//获取appkey
if(sinaAppKey == null){
sinaAppKey = SinaShareUtil.getSinaAppKey(context);
}
//初始化微博分享代码
if(sinaAppKey != null){
initSinaShare(context);
}
}

/**
* 新浪微博分享方法
* @param shareContent 分享的内容
*/
public void shareBySina(ShareContent shareContent, Context context){
if(sinaAPI == null) return;
switch (shareContent.getShareWay()) {
case SINA_SHARE_WAY_TEXT:
shareText(shareContent);
break;
case SINA_SHARE_WAY_PIC:
sharePicture(shareContent, context);
break;
case SINA_SHARE_WAY_WEBPAGE:
shareWebPage(shareContent, context);
break;
}
}

/*
* 分享文字
*/
private void shareText(ShareContent shareContent){
//初始化微博的分享消息
WeiboMessage weiboMessage = new WeiboMessage();
weiboMessage.mediaObject = getTextObj(shareContent.getContent());
//初始化从第三方到微博的消息请求
SendMessageToWeiboRequest request = new SendMessageToWeiboRequest();
request.transaction = buildTransaction("sinatext");
request.message = weiboMessage;
//发送请求信息到微博，唤起微博分享界面
sinaAPI.sendRequest(request);
}

/*
* 分享图片
*/
private void sharePicture(ShareContent shareContent, Context context){
WeiboMessage weiboMessage = new WeiboMessage();
weiboMessage.mediaObject = getImageObj(shareContent.getPicResource(), context);
//初始化从第三方到微博的消息请求
SendMessageToWeiboRequest request = new SendMessageToWeiboRequest();
request.transaction = buildTransaction("sinatext");
request.message = weiboMessage;
//发送请求信息到微博，唤起微博分享界面
sinaAPI.sendRequest(request);
}

private void shareWebPage(ShareContent shareContent, Context context){
WeiboMessage weiboMessage = new WeiboMessage();
weiboMessage.mediaObject = getWebpageObj(shareContent, context);
//初始化从第三方到微博的消息请求
SendMessageToWeiboRequest request = new SendMessageToWeiboRequest();
request.transaction = buildTransaction("sinatext");
request.message = weiboMessage;
//发送请求信息到微博，唤起微博分享界面
sinaAPI.sendRequest(request);
}

/**
* 欢迎关注-阳光小强-http://blog.csdn.net/dawanganban
* @author lixiaoqiang
*
*/
private abstract class ShareContent{
protected abstract int getShareWay();
protected abstract String getContent();
protected abstract String getTitle();
protected abstract String getURL();
protected abstract int getPicResource();
}

/**
* 设置分享文字的内容
* @author Administrator
*
*/
public class ShareContentText extends ShareContent{
private String content;

/**
* 构造分享文字类
* @param text 分享的文字内容
*/
public ShareContentText(String content){
this.content = content;
}

@Override
protected String getContent() {

return content;
}

@Override
protected String getTitle() {
return null;
}

@Override
protected String getURL() {
return null;
}

@Override
protected int getPicResource() {
return -1;
}

@Override
protected int getShareWay() {
return SINA_SHARE_WAY_TEXT;
}

}

/**
* 设置分享图片的内容
* @author Administrator
*
*/
public class ShareContentPic extends ShareContent{
private int picResource;
public ShareContentPic(int picResource){
this.picResource = picResource;
}

@Override
protected String getContent() {
return null;
}

@Override
protected String getTitle() {
return null;
}

@Override
protected String getURL() {
return null;
}

@Override
protected int getPicResource() {
return picResource;
}

@Override
protected int getShareWay() {
return SINA_SHARE_WAY_PIC;
}
}

/**
* 设置分享链接的内容
* @author Administrator
*
*/
public class ShareContentWebpage extends ShareContent{
private String title;
private String content;
private String url;
private int picResource;
public ShareContentWebpage(String title, String content,
String url, int picResource){
this.title = title;
this.content = content;
this.url = url;
this.picResource = picResource;
}

@Override
protected String getContent() {
return content;
}

@Override
protected String getTitle() {
return title;
}

@Override
protected String getURL() {
return url;
}

@Override
protected int getPicResource() {
return picResource;
}

@Override
protected int getShareWay() {
return SINA_SHARE_WAY_WEBPAGE;
}

}

/**
* 创建文本消息对象。

*
* @return 文本消息对象。
*/
private TextObject getTextObj(String text) {
TextObject textObject = new TextObject();
textObject.text = text;
return textObject;
}

private ImageObject getImageObj(int picResource, Context context){
ImageObject imageObject = new ImageObject();
Bitmap bmp = BitmapFactory.decodeResource(context.getResources(), picResource);
imageObject.setImageObject(bmp);
return imageObject;
}

private WebpageObject getWebpageObj(ShareContent shareContent, Context context){
WebpageObject mediaObject = new WebpageObject();
mediaObject.identify = Utility.generateGUID();
mediaObject.title = shareContent.getTitle();
mediaObject.description = shareContent.getContent();

// 设置 Bitmap 类型的图片到视频对象里
Bitmap bmp = BitmapFactory.decodeResource(context.getResources(), shareContent.getPicResource());
mediaObject.setThumbImage(bmp);
mediaObject.actionUrl = shareContent.getURL();
mediaObject.defaultText = shareContent.getContent();
return mediaObject;
}

private void initSinaShare(Context context){
// 创建微博 SDK 接口实例
sinaAPI = WeiboShareSDK.createWeiboAPI(context, sinaAppKey);
//检查版本号支持情况
checkSinaVersin(context);
sinaAPI.registerApp();
}

private void checkSinaVersin(final Context context) {
// 获取微博client相关信息，如是否安装、支持 SDK 的版本号
boolean isInstalledWeibo = sinaAPI.isWeiboAppInstalled();
//int supportApiLevel = sinaAPI.getWeiboAppSupportAPI();

// 假设未安装微博client，设置下载微博相应的回调
if (!isInstalledWeibo) {
sinaAPI.registerWeiboDownloadListener(new IWeiboDownloadListener() {
@Override
public void onCancel() {
Toast.makeText(context,
"取消下载",
Toast.LENGTH_SHORT).show();
}
});
}
}

private String buildTransaction(final String type) {
return (type == null) ? String.valueOf(System.currentTimeMillis()) : type + System.currentTimeMillis();
}
}

如有疑问能够提出或者加入博客旁边的QQ群进行交流。希望这三篇文章对大家有所帮助。