Android Studio 微信分享功能（包括可以分享到朋友圈，分享到朋友）
第一步：配置sdk
在build.gradle文件中，添加如下依赖即可：
在Android Studio中新建你的工程，并保证网络设置可以成功从jcenter下载微信SDK即可。
dependencies {
compile 'com.tencent.mm.opensdk:wechat-sdk-android-with-mta:+'
}
或者是以下
dependencies {
compile 'com.tencent.mm.opensdk:wechat-sdk-android-without-mta:+'
}
AndroidManifest.xml 设置
添加必要的权限支持:
第二步：
WechatShareManager.java 完善
package com.jackie.umeng.share;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Log;
import android.widget.Toast;
import com.tencent.mm.sdk.modelmsg.SendMessageToWX;
import com.tencent.mm.sdk.modelmsg.WXImageObject;
import com.tencent.mm.sdk.modelmsg.WXMediaMessage;
import com.tencent.mm.sdk.modelmsg.WXTextObject;
import com.tencent.mm.sdk.modelmsg.WXVideoObject;
import com.tencent.mm.sdk.modelmsg.WXWebpageObject;
import com.tencent.mm.sdk.openapi.IWXAPI;
import com.tencent.mm.sdk.openapi.WXAPIFactory;
/**
* 实现微信分享功能的核心类
* @author chengcj1
*
*/
public class WechatShareManager {
private static final int THUMB_SIZE = 150;
public static final int WECHAT_SHARE_WAY_TEXT = 1; //文字
public static final int WECHAT_SHARE_WAY_PICTURE = 2; //图片
public static final int WECHAT_SHARE_WAY_WEBPAGE = 3; //链接
public static final int WECHAT_SHARE_WAY_VIDEO = 4; //视频
public static final int WECHAT_SHARE_TYPE_TALK = SendMessageToWX.Req.WXSceneSession; //会话
public static final int WECHAT_SHARE_TYPE_FRENDS = SendMessageToWX.Req.WXSceneTimeline; //朋友圈
private static WechatShareManager mInstance;
private ShareContent mShareContentText, mShareContentPicture, mShareContentWebpag, mShareContentVideo;
private IWXAPI mWXApi;
private Context mContext;
private WechatShareManager(Context context){
this.mContext = context;
//初始化数据
//初始化微信分享代码
initWechatShare(context);
}
/**
* 获取WeixinShareManager实例
* 非线程安全，请在UI线程中操作
* @return
*/
public static WechatShareManager getInstance(Context context){
if(mInstance == null){
mInstance = new WechatShareManager(context);
}
return mInstance;
}
private void initWechatShare(Context context){
if (mWXApi == null) {
mWXApi = WXAPIFactory.createWXAPI(context, WechatShareUtil.WECHAT_APP_ID, true);
}
mWXApi.registerApp(WechatShareUtil.WECHAT_APP_ID);
}
/**
* 通过微信分享
* @param shareWay 分享的方式（文本、图片、链接）
* @param shareType 分享的类型（朋友圈，会话）
*/
public void shareByWebchat(ShareContent shareContent, int shareType){
switch (shareContent.getShareWay()) {
case WECHAT_SHARE_WAY_TEXT:
shareText(shareContent, shareType);
break;
case WECHAT_SHARE_WAY_PICTURE:
sharePicture(shareContent, shareType);
break;
case WECHAT_SHARE_WAY_WEBPAGE:
shareWebPage(shareContent, shareType);
break;
case WECHAT_SHARE_WAY_VIDEO:
shareVideo(shareContent, shareType);
break;
}
}
private abstract class ShareContent {
protected abstract int getShareWay();
protected abstract String getContent();
protected abstract String getTitle();
protected abstract String getURL();
protected abstract int getPictureResource();
}
/**
* 设置分享文字的内容
* @author chengcj1
*
*/
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 int getShareWay() {
return WECHAT_SHARE_WAY_TEXT;
}
@Override
protected String getContent() {
return content;
}
@Override
protected String getTitle() {
return null;
}
@Override
protected String getURL() {
return null;
}
@Override
protected int getPictureResource() {
return -1;
}
}
/*
* 获取文本分享对象
*/
public ShareContent getShareContentText(String content) {
if (mShareContentText == null) {
mShareContentText = new ShareContentText(content);
}
return (ShareContentText) mShareContentText;
}
/**
* 设置分享图片的内容
* @author chengcj1
*
*/
public class ShareContentPicture extends ShareContent {
private int pictureResource;
public ShareContentPicture(int pictureResource){
this.pictureResource = pictureResource;
}
@Override
protected int getShareWay() {
return WECHAT_SHARE_WAY_PICTURE;
}
@Override
protected int getPictureResource() {
return pictureResource;
}
@Override
protected String getContent() {
return null;
}
@Override
protected String getTitle() {
return null;
}
@Override
protected String getURL() {
return null;
}
}
/*
* 获取图片分享对象
*/
public ShareContent getShareContentPicture(int pictureResource) {
if (mShareContentPicture == null) {
mShareContentPicture = new ShareContentPicture(pictureResource);
}
return (ShareContentPicture) mShareContentPicture;
}
/**
* 设置分享链接的内容
* @author chengcj1
*
*/
public class ShareContentWebpage extends ShareContent {
private String title;
private String content;
private String url;
private int pictureResource;
public ShareContentWebpage(String title, String content, String url, int pictureResource){
this.title = title;
this.content = content;
this.url = url;
this.pictureResource = pictureResource;
}
@Override
protected int getShareWay() {
return WECHAT_SHARE_WAY_WEBPAGE;
}
@Override
protected String getContent() {
return content;
}
@Override
protected String getTitle() {
return title;
}
@Override
protected String getURL() {
return url;
}
@Override
protected int getPictureResource() {
return pictureResource;
}
}
/*
* 获取网页分享对象
*/
public ShareContent getShareContentWebpag(String title, String content, String url, int pictureResource) {
if (mShareContentWebpag == null) {
mShareContentWebpag = new ShareContentWebpage(title, content, url, pictureResource);
}
return (ShareContentWebpage) mShareContentWebpag;
}
/**
* 设置分享视频的内容
* @author chengcj1
*
*/
public class ShareContentVideo extends ShareContent {
private String url;
public ShareContentVideo(String url) {
this.url = url;
}
@Override
protected int getShareWay() {
return WECHAT_SHARE_WAY_VIDEO;
}
@Override
protected String getContent() {
return null;
}
@Override
protected String getTitle() {
return null;
}
@Override
protected String getURL() {
return url;
}
@Override
protected int getPictureResource() {
return -1;
}
}
/*
* 获取视频分享内容
*/
public ShareContent getShareContentVideo(String url) {
if (mShareContentVideo == null) {
mShareContentVideo = new ShareContentVideo(url);
}
return (ShareContentVideo) mShareContentVideo;
}
/*
* 分享文字
*/
private void shareText(ShareContent shareContent, int shareType) {
String text = shareContent.getContent();
//初始化一个WXTextObject对象
WXTextObject textObj = new WXTextObject();
textObj.text = text;
//用WXTextObject对象初始化一个WXMediaMessage对象
WXMediaMessage msg = new WXMediaMessage();
msg.mediaObject = textObj;
msg.description = text;
//构造一个Req
SendMessageToWX.Req req = new SendMessageToWX.Req();
//transaction字段用于唯一标识一个请求
req.transaction = buildTransaction("textshare");
req.message = msg;
//发送的目标场景， 可以选择发送到会话 WXSceneSession 或者朋友圈 WXSceneTimeline。 默认发送到会话。
req.scene = shareType;
mWXApi.sendReq(req);
}
/*
* 分享图片
*/
private void sharePicture(ShareContent shareContent, int shareType) {
Bitmap bitmap = BitmapFactory.decodeResource(mContext.getResources(), shareContent.getPictureResource());
WXImageObject imgObj = new WXImageObject(bitmap);
WXMediaMessage msg = new WXMediaMessage();
msg.mediaObject = imgObj;
Bitmap thumbBitmap = Bitmap.createScaledBitmap(bitmap, THUMB_SIZE, THUMB_SIZE, true);
bitmap.recycle();
msg.thumbData = Util.bmpToByteArray(thumbBitmap, true); //设置缩略图
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("imgshareappdata");
req.message = msg;
req.scene = shareType;
mWXApi.sendReq(req);
}
/*
* 分享链接
*/
private void shareWebPage(ShareContent shareContent, int shareType) {
WXWebpageObject webpage = new WXWebpageObject();
webpage.webpageUrl = shareContent.getURL();
WXMediaMessage msg = new WXMediaMessage(webpage);
msg.title = shareContent.getTitle();
msg.description = shareContent.getContent();
Bitmap thumb = BitmapFactory.decodeResource(mContext.getResources(), shareContent.getPictureResource());
if(thumb == null) {
Toast.makeText(mContext, "图片不能为空", Toast.LENGTH_SHORT).show();
} else {
msg.thumbData = Util.bmpToByteArray(thumb, true);
}
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("webpage");
req.message = msg;
req.scene = shareType;
mWXApi.sendReq(req);
}
/*
* 分享视频
*/
private void shareVideo(ShareContent shareContent, int shareType) {
WXVideoObject video = new WXVideoObject();
video.videoUrl = shareContent.getURL();
WXMediaMessage msg = new WXMediaMessage(video);
msg.title = shareContent.getTitle();
msg.description = shareContent.getContent();
Bitmap thumb = BitmapFactory.decodeResource(mContext.getResources(), R.drawable.send_music_thumb);
// BitmapFactory.decodeStream(new URL(video.videoUrl).openStream());
/**
* 测试过程中会出现这种情况，会有个别手机会出现调不起微信客户端的情况。造成这种情况的原因是微信对缩略图的大小、title、description等参数的大小做了限制，所以有可能是大小超过了默认的范围。
* 一般情况下缩略图超出比较常见。Title、description都是文本，一般不会超过。
*/
Bitmap thumbBitmap = Bitmap.createScaledBitmap(thumb, THUMB_SIZE, THUMB_SIZE, true);
thumb.recycle();
msg.thumbData = Util.bmpToByteArray(thumbBitmap, true);
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("video");
req.message = msg;
req.scene = shareType;
mWXApi.sendReq(req);
}
private String buildTransaction(final String type) {
return (type == null) ? String.valueOf(System.currentTimeMillis()) : type + System.currentTimeMillis();
}
}
MainActivity.java
package com.jackie.umeng.share;
import com.jackie.umeng.share.WechatShareManager.ShareContentPicture;
import com.jackie.umeng.share.WechatShareManager.ShareContentText;
import com.jackie.umeng.share.WechatShareManager.ShareContentVideo;
import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
private Button mShareText, mSharePicture, mShareVideo;
private WechatShareManager mShareManager;
private Context mContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mShareText = (Button) findViewById(R.id.share_text);
mSharePicture = (Button) findViewById(R.id.share_picture);
mShareVideo = (Button) findViewById(R.id.share_video);
mShareText.setOnClickListener(this);
mSharePicture.setOnClickListener(this);
mShareVideo.setOnClickListener(this);
mContext = this;
mShareManager = WechatShareManager.getInstance(mContext);
}
@Override
public void onClick(View v) {
if(isWeixinAvilible(mContext)) {
}else {
Toast.makeText(mContext, "您还没有安装微信，请先安装微信客户端", Toast.LENGTH_SHORT).show();
}
switch (v.getId()) {
case R.id.share_text:
ShareContentText mShareContentText = (ShareContentText) mShareManager.getShareContentText("微信文本分享");
mShareManager.shareByWebchat(mShareContentText, WechatShareManager.WECHAT_SHARE_TYPE_FRENDS);
break;
case R.id.share_picture:
ShareContentPicture mShareContentPicture = (ShareContentPicture) mShareManager.getShareContentPicture(R.drawable.share);
mShareManager.shareByWebchat(mShareContentPicture, WechatShareManager.WECHAT_SHARE_TYPE_FRENDS);
break;
case R.id.share_video:
ShareContentVideo mShareContentVideo = (ShareContentVideo) mShareManager.getShareContentVideo("http://baidu.hz.letv.com/kan/agSlT?fr=v.baidu.com/");
mShareManager.shareByWebchat(mShareContentVideo, WechatShareManager.WECHAT_SHARE_TYPE_FRENDS);
break;
default:
break;
}
}
/**
* 判断 用户是否安装微信客户端
*/
public static boolean isWeixinAvilible(Context context) {
final PackageManager packageManager = context.getPackageManager();// 获取packagemanager
List pinfo = packageManager.getInstalledPackages(0);// 获取所有已安装程序的包信息
if (pinfo != null) {
for (int i = 0; i < pinfo.size(); i++) {
String pn = pinfo.get(i).packageName;
if (pn.equals("com.tencent.mm")) {
return true;
}
}
}
return false;
}
}
如果后台返给我们的数据是二进制流图片我们需要做一些改动如下：
二进制流转换成Bitmap类型的
第一步：
/**
* base64转为bitmap
* @return
*/
public static Bitmap base64ToBitmap(String picStrInMsg) {
Bitmap bitmap = null;
byte[] decode = Base64.decode(picStrInMsg, Base64.DEFAULT);
bitmap = BitmapFactory.decodeByteArray(decode, 0, decode.length);
return bitmap;
}
第二步：
在调用微信分享的方法里面
Bitmap bitmap = base64ToBitmap(arg.split("base64,")[1]);
try {
WXImageObject imgObj = new WXImageObject(bitmap);
WXMediaMessage msg = new WXMediaMessage();
msg.mediaObject = imgObj;
Bitmap thumbBitmap = Bitmap.createScaledBitmap(bitmap, 150, 150, true);
bitmap.recycle();
msg.thumbData = Util.bmpToByteArray(thumbBitmap, true); //设置缩略图
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("imgshareappdata");
req.message = msg;
req.scene = WechatShareManager.WECHAT_SHARE_TYPE_TALK;
mShareManager.mWXApi.sendReq(req);
} catch (ActivityNotFoundException e) {
// TODO: handle exception
Toast.makeText(mContext, "检查到您手机没有安装微信，请安装后使用该功能", Toast.LENGTH_LONG).show();
}
《-----------到这里就结束了以下的以下都是遇见问题的解决办法，希望对自己有帮助对大家有帮助---------》
最后如果出现以下问题isWebchatAvaliable()检查微信不好用请换成以下：
最后如果出现以下问题
做微信分享功能，遇到这个问题，在网上也没找到答案。最后发现问题解决了，我出现这个问题的原因是： APP_ID 的 错误，APP_ID一般以 wx 开头的18个字节长度的字符串。也就是说你的微信ID不对。