A simple way to add WeChat sharing to Android applications

1. Apply for your AppID
http://open.weixin.qq.com/

Friendly reminder: It is recommended to use the MD5 value in the last step of the eclipse packaging software to apply for the AppID

2. Download the libammsdk.jar package from the official website
http://open.weixin.qq.com/download/?lang=zh_CN

3. Copy libammsdk.jar to the libs directory of the project

4. Write code in the Activity that needs to be shared

private IWXAPI wxApi;  
//实例化  
wxApi = WXAPIFactory.createWXAPI(this, Constants.WX_APP_ID);  
wxApi.registerApp(Constants.WX_APP_ID);  
/** 
 * 微信分享 （这里仅提供一个分享网页的示例，其它请参看官网示例代码） 
 * @param flag(0:分享到微信好友，1：分享到微信朋友圈) 
 */  
private void wechatShare(int flag){  
    WXWebpageObject webpage = new WXWebpageObject();  
    webpage.webpageUrl = "这里填写链接url";  
    WXMediaMessage msg = new WXMediaMessage(webpage);  
    msg.title = "这里填写标题";  
    msg.description = "这里填写内容";  
    //这里替换一张自己工程里的图片资源  
    Bitmap thumb = BitmapFactory.decodeResource(getResources(), R.drawable.share_logo);  
    msg.setThumbImage(thumb);  
      
    SendMessageToWX.Req req = new SendMessageToWX.Req();  
    req.transaction = String.valueOf(System.currentTimeMillis());  
    req.message = msg;  
    req.scene = flag==0?SendMessageToWX.Req.WXSceneSession:SendMessageToWX.Req.WXSceneTimeline;  
    wxApi.sendReq(req);  
}  
//在需要分享的地方添加代码：  
wechatShare(0);//分享到微信好友  
wechatShare(1);//分享到微信朋友圈

5. Create a new wxapi directory under the directory corresponding to your package name , and add a WXEntryActivity class in the wxapi directory, which inherits from Activity and implements the IWXAPIEventHandler interface

##

/** 微信客户端回调activity示例 */  
public class WXEntryActivity extends Activity implements IWXAPIEventHandler {  
    // IWXAPI 是第三方app和微信通信的openapi接口  
    private IWXAPI api;  
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        api = WXAPIFactory.createWXAPI(this, "这里替换第一步申请的APP_ID", false);  
        api.handleIntent(getIntent(), this);  
        super.onCreate(savedInstanceState);  
    }  
    @Override  
    public void onReq(BaseReq arg0) { }  
  
    @Override  
    public void onResp(BaseResp resp) {  
        LogManager.show(TAG, "resp.errCode:" + resp.errCode + ",resp.errStr:"  
                + resp.errStr, 1);  
        switch (resp.errCode) {  
        case BaseResp.ErrCode.ERR_OK:  
            //分享成功  
            break;  
        case BaseResp.ErrCode.ERR_USER_CANCEL:  
            //分享取消  
            break;  
        case BaseResp.ErrCode.ERR_AUTH_DENIED:  
            //分享拒绝  
            break;  
        }  
    }  
}

6. Configuration manifest file AndroidManifest.xml

<activity    
    android:name=".wxapi.WXEntryActivity"  
    android:exported="true"  
    android:screenOrientation="portrait"   
    android:theme="@android:style/Theme.Translucent.NoTitleBar" />

7. Sign the packaged software, and then you can test it

For more simple methods of adding WeChat sharing to Android applications, please pay attention to the PHP Chinese website for related articles!