Android 微信分享问题解决小心得（二）

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分享音频点击跳转页面显示黑屏播放器（页面什么都没有全黑）

后来在分享音频的时候，需要添加分享音乐的URL地址，也就是WXMusicObject.musicUrl属性，但是又一个肯人的地方来了。当我设置了一个分享的音频地址的时候OK可以分享也可以播放，但是当我点击分享内容的时候跳转到了一个不知道是什么鬼的页面，除了播放、暂停按钮什么都没有全黑页面。郁闷无比呀！后来通过多方查找返现，WX并没有提供分享页面的属性在WXMusicObject类中。于是只能通过musicUrl属性自己拼接：

分享地址 + "#wechat_music_url=" + 音频地址

微信客户端首次登陆分享失败问题

本以为可以安安稳稳的分享数据了，好景不长测试给提了BUG，微信客户端首次登陆（清除WX数据）通过项目首次分享不成功。但是郁闷是第二次又成功了。也不知道微信在搞什么东东。找了好多文档都没有这样的事情发生，也测试IOS的分享也是没有这个问题，一度认为可能是WX-SDK问题。后来通过微信Demo发现每个Activity中都调用了IWXAPI.register()注册方法。于是将该方法写在了Application中，满心认为应该没有问题了，但是通过测试返现没有任何作用，于是各种测试发现也在Application中的时候当开启应用程序之后在登陆WX客户端分享就失败了。但是当登陆后在开启应用程序分享就没有问题了。所以调整了一下注册的位置，当我每次进行分享的时候调用register（）方法。分享完毕的时候调用unregister()方法取消注册。这个问题就完美解决了。

下面以分享音频为例，简单封装了一个工具类和大家分享

public class WXShareUtils {    private final String TAG = TTLog.makeLogTag(WXShareUtils.class);    private int THUMB_SIZE = 150;    private static volatile WXShareUtils manager;    //构造器对象    private Builder mBuilder;    private IWXAPI api;    private WXShareUtils() {    }    public static WXShareUtils getInstance() {        WXShareUtils cache = manager;        if (cache == null) {            synchronized (WXShareUtils.class) {                cache = manager;                if (cache == null) {                    cache = new WXShareUtils();                    manager = cache;                }            }        }        return cache;    }    public void shareMusic() throws IllegalStateException {        if (mBuilder == null) {            TTLog.d(TAG, "The utility object is null. --->Builder is not null.<---");            throw new IllegalStateException("The utility object is null. --->Builder is not null.<---");        } else if (TextUtils.isEmpty(mBuilder.getMusicUrl())) {            TTLog.d(TAG, "--->MusicUrl is not null.<---");            throw new IllegalStateException("--->MusicUrl is not null.<---");        } else if (mBuilder.getScene() != 0 && mBuilder.getScene() != 1) {            TTLog.d(TAG, "--->scene is SendMessageToWX.Req.WXSceneTimeline(0) or SendMessageToWX.Req.WXSceneSession(1).<---");            throw new IllegalStateException("--->scene is SendMessageToWX.Req.WXSceneTimeline(0) or SendMessageToWX.Req.WXSceneSession(1).<---");        } else if (mBuilder.getActivity() == null) {            TTLog.d(TAG, "--->Activity is not null.<---");            throw new IllegalStateException("--->Activity is not null.<---");        } else if (TextUtils.isEmpty(mBuilder.getTitle())) {            TTLog.d(TAG, "--->Title is not null.<---");            throw new IllegalStateException("--->Title is not null.<---");        } else if (TextUtils.isEmpty(mBuilder.getDescription())) {            TTLog.d(TAG, "--->Description is not null.<---");            throw new IllegalStateException("--->Description is not null.<---");        } else if (TextUtils.isEmpty(mBuilder.getShareUrl())) {            TTLog.d(TAG, "--->Share Url is not null.<---");            throw new IllegalStateException("--->Share Url is not null.<---");        }        RequestAsyncTask task = new RequestAsyncTask() {            @Override            public void callBack(Bitmap bitmap) {                shareWXMusic(bitmap);                releaseBuilder();            }        };        task.execute(mBuilder.getImageUrl());    }    /**     * 分享音频     *     * @param bmp     */    private void shareWXMusic(Bitmap bmp) {        api = getApi();        api.registerApp(Constants.APP_ID);        if (api.isWXAppInstalled()) {            WXMusicObject music = new WXMusicObject();            music.musicUrl = mBuilder.getShareUrl() + "#wechat_music_url=" + mBuilder.getMusicUrl();//            music.musicUrl = mBuilder.getMusicUrl();//            music.musicLowBandUrl = mBuilder.getMusicUrl();//            music.musicDataUrl = mBuilder.getShareUrl();            WXMediaMessage msg = new WXMediaMessage();            msg.mediaObject = music;            msg.title = mBuilder.getTitle();            msg.description = mBuilder.getDescription();            Bitmap thumbBmp = null;            if (bmp != null) {                thumbBmp = Bitmap.createScaledBitmap(bmp, THUMB_SIZE, THUMB_SIZE, true);                msg.thumbData = bmpToByteArray(thumbBmp, true);                bmp.recycle();            } else {                Bitmap resBitmap = BitmapFactory.decodeResource(TTApplication.getAppResources(), R.drawable.share_default_icon);                thumbBmp = Bitmap.createScaledBitmap(resBitmap, THUMB_SIZE, THUMB_SIZE, true);                msg.thumbData = bmpToByteArray(thumbBmp, true);                resBitmap.recycle();            }            SendMessageToWX.Req req = new SendMessageToWX.Req();            req.transaction = buildTransaction("music");            req.message = msg;            req.scene = mBuilder.getScene();            api.sendReq(req);        } else {            ToastUtils.showToast(mBuilder.getActivity(), R.string.share_error_content);        }        api.unregisterApp();    }    private String buildTransaction(final String type) {        return (type == null) ? String.valueOf(System.currentTimeMillis()) : type + System.currentTimeMillis();    }    private byte[] bmpToByteArray(final Bitmap bmp, final boolean needRecycle) {        ByteArrayOutputStream output = new ByteArrayOutputStream();        bmp.compress(Bitmap.CompressFormat.JPEG, 100, output);        byte[] result = output.toByteArray();        try {            output.close();        } catch (Exception e) {            e.printStackTrace();        }        if (needRecycle) {            bmp.recycle();        }        return result;    }    private Bitmap getImageFromNet(String url) {        HttpURLConnection conn = null;        try {            URL mURL = new URL(url);            conn = (HttpURLConnection) mURL.openConnection();            conn.setRequestMethod("GET"); //设置请求方法            conn.setConnectTimeout(10000); //设置连接服务器超时时间            conn.setReadTimeout(5000);  //设置读取数据超时时间            conn.setDoInput(true);            conn.connect(); //开始连接            int responseCode = conn.getResponseCode(); //得到服务器的响应码            if (responseCode == 200) {                //访问成功                InputStream is = conn.getInputStream(); //获得服务器返回的流数据                BufferedInputStream bufferedInputStream = new BufferedInputStream(is);                Bitmap bmpImage = BitmapFactory.decodeStream(bufferedInputStream);//根据流数据 创建一个bitmap对象                return bmpImage;            } else {                //访问失败                TTLog.d(TAG, "访问失败===responseCode：" + responseCode);            }        } catch (Exception e) {            TTLog.e(TAG, e, "load image url fail");            return null;        } finally {            if (conn != null) {                conn.disconnect(); //断开连接            }        }        return null;    }    /**     * 异步加载图片     */    private abstract class RequestAsyncTask extends AsyncTask<String, Void, Bitmap> {        public abstract void callBack(Bitmap bitmap);        @Override        protected Bitmap doInBackground(String... params) {            if (TextUtils.isEmpty(params[0])) {                return null;            }            return getImageFromNet(params[0]);        }        @Override        protected void onPostExecute(Bitmap bitmap) {            callBack(bitmap);        }    }    /*    * 内部Builder构建器    * */    public static class Builder {        private String musicUrl = null;        private String title = null;        private String description = null;        private String imageUrl = null;        private int scene = -1;//0 好友 1朋友圈 2 收藏        private Activity activity = null;        private String shareUrl = null;        public String getMusicUrl() {            return musicUrl;        }        public Builder setMusicUrl(String musicUrl) {            this.musicUrl = musicUrl;            return this;        }        public String getTitle() {            return title;        }        public Builder setTitle(String title) {            this.title = title;            return this;        }        public String getDescription() {            return description;        }        public Builder setDescription(String description) {            this.description = description;            return this;        }        public String getImageUrl() {            return imageUrl;        }        public Builder setImageUrl(String imageUrl) {            this.imageUrl = imageUrl;            return this;        }        public int getScene() {            return scene;        }        /**         * 0 好友 1朋友圈         *         * @param scene         * @return         */        public Builder setScene(int scene) {            this.scene = scene;            return this;        }        public Activity getActivity() {            return activity;        }        public Builder setActivity(Activity activity) {            this.activity = activity;            return this;        }        public String getShareUrl() {            return shareUrl;        }        public Builder setShareUrl(String shareUrl) {            this.shareUrl = shareUrl;            return this;        }    }    private IWXAPI getIWXAPI() {        return WXAPIFactory.createWXAPI(mBuilder.getActivity(), Constants.APP_ID, false);    }    private IWXAPI getIWXAPI(Context context){        return WXAPIFactory.createWXAPI(context, Constants.APP_ID, false);    }    public IWXAPI getApi() {        if (api != null)            return api;        else            return getIWXAPI();    }    public IWXAPI getApi(Context context) {        if (api != null)            return api;        else            return getIWXAPI(context);    }    private void releaseBuilder() {        if (mBuilder != null) {            mBuilder = null;            TTLog.d(TAG, "release WXShareUtils Builder.");        }    }    /**     * 配置方法     *     * @param builder     * @return     */    public WXShareUtils option(Builder builder) {        this.mBuilder = builder;        return manager;    }}

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