微信分享

一：配置
gitHub：RxTools

1.llprojects {
    repositories {
        jcenter()
        maven { url "https://jitpack.io" }
    }
}

2.compile 'com.github.vondear:RxTools:v1.7.3.7'

使用方法：
    在Application中初始化 RxUtils.init(this);

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:name=".Application"
    android:roundIcon="@mipmap/ic_launcher_round"

3.权限：

<uses-permission android:name="android.permission.INTERNET"/>

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

4. 把微信开发资料里面的daima.jks导入工程，src目录下

5.//分享好友，朋友圈，收藏

tv.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            WechatShareTools.init(MainActivity.this, Constants.APP_ID);//初始化

            String url = "https://github.com/vondear/RxTools";//网页链接

            String description = "工欲善其事必先利其器！";//描述

            Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);//获取Bitmap
            byte[] bitmapByte = RxImageUtils.bitmap2Bytes(bitmap, Bitmap.CompressFormat.PNG);//将 Bitmap 转换成 byte[]

            WechatShareModel mWechatShareModel = new WechatShareModel(url, "APP名称", description, bitmapByte);

            //Friend 分享微信好友,Zone 分享微信朋友圈,Favorites 分享微信收藏
            WechatShareTools.shareURL(mWechatShareModel, WechatShareTools.SharePlace.Zone);//分享操作
            
        }
});

//文字类型分享示例：

private int mTargetScene = SendMessageToWX.Req.WXSceneSession;

IWXAPI api = WXAPIFactory.createWXAPI(this, Constants.APP_ID);

tv.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

String  text= "你好";

WXTextObject textObj = new WXTextObject();
textObj.text = text;

WXMediaMessage msg = new WXMediaMessage();
msg.mediaObject = textObj;

msg.description = text;

SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("text"); 
req.message = msg;
req.scene = mTargetScene;
api.sendReq(req);
finish();

        }
});

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

6.最后进行打包：