APP跳转微信小程序，跳转微信公众号

一、判断手机是否安装了微信的工具类：

//判断手机是否安装了某些程序的工具类
public class IsInstallUtils {//判断是否安装了微信public static boolean isWeixinAvilible(Context context) {final PackageManager packageManager = context.getPackageManager();// 获取packagemanagerList<PackageInfo> 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;}//判断是否安装了QQpublic static boolean isQQClientAvailable(Context context) {final PackageManager packageManager = context.getPackageManager();List<PackageInfo> pinfo = packageManager.getInstalledPackages(0);if (pinfo != null) {for (int i = 0; i < pinfo.size(); i++) {String pn = pinfo.get(i).packageName;if (pn.equals("com.tencent.mobileqq")) {return true;}}}return false;}//检测是否安装支付宝public static boolean isAliPayInstalled(Context context) {Uri uri = Uri.parse("alipays://platformapi/startApp");Intent intent = new Intent(Intent.ACTION_VIEW, uri);ComponentName componentName = intent.resolveActivity(context.getPackageManager());return componentName != null;}
}

二、Android App和微信的一些交互

1.APP跳转微信公众号：

if (IsInstallUtils.isWeixinAvilible(getActivity()) == true) {IWXAPI api = WXAPIFactory.createWXAPI(getActivity(), "微信开放平台AppId");JumpToBizProfile.Req req = new JumpToBizProfile.Req();req.toUserName = "小程序原始id";req.extMsg = "";req.profileType = JumpToBizProfile.JUMP_TO_NORMAL_BIZ_PROFILE;api.sendReq(req);} else {showToast("检测到手机未安装微信，请先下载微信");
}

2.APP跳转微信小程序

if (IsInstallUtils.isWeixinAvilible(getActivity())== true) {IWXAPI api = WXAPIFactory.createWXAPI(OrderXYDetailsActivity.this, "微信开放平台AppId");WXLaunchMiniProgram.Req req = new WXLaunchMiniProgram.Req();req.userName = "小程序原始id"; req.path = "pages/index/index?tradeno=" + orderInfo.get(0).getTradeno() + "&yybh=" + orderInfo.get(0).getYybh();  //拉起小程序页面的可带参路径，不填默认拉起小程序首页req.miniprogramType = WXLaunchMiniProgram.Req.MINIPTOGRAM_TYPE_RELEASE;// 可选打开 开发版，体验版和正式版api.sendReq(req);} else {showToast("检测到手机未安装微信，请先下载微信");
}

3.APP进行微信分享

public class ShareUtils {//分享到微信好友列表public static void ShareWXFriendList(final Context context, String url, String title, String description, final String HeaderImage) {WXWebpageObject webpage2 = new WXWebpageObject();webpage2.webpageUrl = url;final WXMediaMessage msg2 = new WXMediaMessage(webpage2);msg2.title = title;msg2.description = description;if (HeaderImage.equals("")) {Bitmap thumb2 = BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcher);Bitmap thumbBmp = Bitmap.createScaledBitmap(thumb2, 200, 200, true);msg2.thumbData = ImageUtils.bitmap2Bytes(thumbBmp, Bitmap.CompressFormat.PNG);} else {new AsyncTask<String, Void, Bitmap>() {@Overrideprotected Bitmap doInBackground(String... params) {return getBitMap(context,params[0]);}@Overrideprotected void onPostExecute(Bitmap bitmap) {
//                    int byteCount = bitmap.getByteCount();Bitmap thumbBmp = Bitmap.createScaledBitmap(bitmap, 200, 200, true);msg2.thumbData = ImageUtils.bitmap2Bytes(thumbBmp, Bitmap.CompressFormat.JPEG);new AsyncTask<String, Void, Bitmap>() {@Overrideprotected Bitmap doInBackground(String... params) {return getBitMap(context,params[0]);}@Overrideprotected void onPostExecute(Bitmap bitmap) {
//                    int byteCount = bitmap.getByteCount();Bitmap thumbBmp = Bitmap.createScaledBitmap(bitmap, 200, 200, true);msg2.thumbData = ImageUtils.bitmap2Bytes(thumbBmp, Bitmap.CompressFormat.JPEG);SendMessageToWX.Req req2 = new SendMessageToWX.Req();req2.transaction = "webpage" + System.currentTimeMillis();req2.message = msg2;req2.scene = SendMessageToWX.Req.WXSceneSession;//发送到好友界面req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;MyApplication.getWXapi().sendReq(req2);}}.execute(HeaderImage);}}.execute(HeaderImage);}SendMessageToWX.Req req2 = new SendMessageToWX.Req();req2.transaction = "webpage" + System.currentTimeMillis();req2.message = msg2;req2.scene = SendMessageToWX.Req.WXSceneSession;//发送到好友界面req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;MyApplication.getWXapi().sendReq(req2);}//分享到微信朋友圈public static void ShareWXFriendCircle(final Context context, String url, String title, String description, final String HeaderImage) {WXWebpageObject webpage2 = new WXWebpageObject();webpage2.webpageUrl = url;final WXMediaMessage msg2 = new WXMediaMessage(webpage2);msg2.title = title;msg2.description = description;if (HeaderImage.equals("")) {Bitmap thumb2 = BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcher);msg2.thumbData = ImageUtils.bitmap2Bytes(thumb2, Bitmap.CompressFormat.PNG);} else {new AsyncTask<String, Void, Bitmap>() {@Overrideprotected Bitmap doInBackground(String... params) {return getBitMap(context,params[0]);}@Overrideprotected void onPostExecute(Bitmap bitmap) {
//                    int byteCount = bitmap.getByteCount();Bitmap thumbBmp = Bitmap.createScaledBitmap(bitmap, 200, 200, true);msg2.thumbData = ImageUtils.bitmap2Bytes(thumbBmp, Bitmap.CompressFormat.JPEG);new AsyncTask<String, Void, Bitmap>() {@Overrideprotected Bitmap doInBackground(String... params) {return getBitMap(context,params[0]);}@Overrideprotected void onPostExecute(Bitmap bitmap) {
//                    int byteCount = bitmap.getByteCount();Bitmap thumbBmp = Bitmap.createScaledBitmap(bitmap, 200, 200, true);msg2.thumbData = ImageUtils.bitmap2Bytes(thumbBmp, Bitmap.CompressFormat.JPEG);SendMessageToWX.Req req2 = new SendMessageToWX.Req();req2.transaction = "webpage" + System.currentTimeMillis();req2.message = msg2;req2.scene = SendMessageToWX.Req.WXSceneTimeline;//发送到好友界面req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;MyApplication.getWXapi().sendReq(req2);}}.execute(HeaderImage);}}.execute(HeaderImage);}SendMessageToWX.Req req2 = new SendMessageToWX.Req();req2.transaction = "webpage" + System.currentTimeMillis();req2.message = msg2;req2.scene = SendMessageToWX.Req.WXSceneTimeline;//发送到好友界面req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;MyApplication.getWXapi().sendReq(req2);}public static Bitmap getBitMap(Context context,String ImageUrl) {Bitmap bitmap = null;try {
//            bitmap = Glide.with(context).load(ImageUrl).asBitmap().centerCrop().into(128,128).get();} catch (Exception e) {e.printStackTrace();}return bitmap;}
}

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APP跳转微信小程序，跳转微信公众号

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