直奔主题
注意：需要了解集成的可以查看demo，demo不能唤起支付或分享等功能，因为没有配置appKey，只能用作代码参考。
1、微信支付、登录、分享工具类：WXApiHelper.java
/**
* 微信SDK帮助类
*/
public class WXApiHelper {
private static final String WX_APP_ID = "wx666666";//TODO 微信相关
private static final String WX_APP_SECRET = "66666666666666666";
private static final String WX_SCOPE = "snsapi_userinfo";
private static final String WX_STATE = "my_app_wx_login";
private static final String WX_GRANT_TYPE = "authorization_code";
private static final String WX_PACKAGE_VALUE = "Sign=WXPay";
private static WXApiHelper mHelper;
private final IWXAPI mWxApi;
/**
* APP.getInstance() 为Application的context
*/
private WXApiHelper() {
mWxApi = WXAPIFactory.createWXAPI(APP.getInstance(), WX_APP_ID, false);
mWxApi.registerApp(WX_APP_ID);
}
public static WXApiHelper get() {
if (mHelper == null) {
mHelper = new WXApiHelper();
}
return mHelper;
}
/**
* 微信登录
*/
public void doWxLogin() {
final SendAuth.Req req = new SendAuth.Req();
req.scope = WX_SCOPE;
req.state = WX_STATE;
mWxApi.sendReq(req);
}
/**
* 微信支付
*
* @param payInfo 支付相关信息，需要从自己的服务器获取
*/
public void doWxPay(PayInfo payInfo) {
PayReq req = new PayReq();
req.appId = WX_APP_ID;
req.partnerId = payInfo.getPartnerid();
req.prepayId = payInfo.getPrepayid();
req.nonceStr = payInfo.getNoncestr();
req.timeStamp = payInfo.getTimestamp();
req.packageValue = WX_PACKAGE_VALUE;
req.sign = payInfo.getSign();
mWxApi.sendReq(req);
}
/**
* 微信分享url给朋友
*
* @param title 标题
* @param description 内容
* @param url 分享的url
*/
public void doShareUrlToWeChat(String title, String description, String url) {
doShareUrl(title, description, url, SendMessageToWX.Req.WXSceneSession);
}
/**
* 微信分享url到朋友圈
* @param title 标题
* @param description 内容
* @param url 分享的url
*/
public void doShareUrlToTimeline(String title, String description, String url) {
doShareUrl(title, description, url, SendMessageToWX.Req.WXSceneTimeline);
}
private void doShareUrl(String title, String description, String url, int scene) {
WXWebpageObject webpage = new WXWebpageObject();
webpage.webpageUrl = url;
WXMediaMessage msg = new WXMediaMessage(webpage);
msg.title = title;
msg.description = description;
// Bitmap thumbBmp = BitmapFactory.decodeResource(getResources(), R.drawable.send_music_thumb);
// msg.thumbData = Util.bmpToByteArray(thumbBmp, true);
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = "webpage";
req.message = msg;
req.scene = scene;
// req.userOpenId = getOpenId();
mWxApi.sendReq(req);
}
//TODO 其他分享功能可以写到这里
public void handleIntent(Intent intent, IWXAPIEventHandler handler) {
mWxApi.handleIntent(intent, handler);
}
}
2、实体类PayInfo.java
/**
* 支付订单信息 (微信)
*/
public class PayInfo {
//微信相关信息
private String return_code;//返回代号
private String return_msg;//
private String appid;//应用ID
private String mch_id;//
private String noncestr;//随机字符串
private String sign;//签名
private String result_code;//结果代号
private String prepayid;//预支付交易会话ID
private String trade_type;//交易类型
private String partnerid;//商户号
private String timestamp;//时间戳
//Getter 和 setter 方法这里就忽略不写
}
3、调用
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
private void doWeChatPay() {
final PayInfo payInfo = new PayInfo();
//TODO 实际的PayInfo需要调自己的服务器获取相关信息
WXApiHelper.get().doWxPay(payInfo);
}
private void doWeChatShare() {
WXApiHelper.get().doShareUrlToWeChat("活动", "这是一个公益活动", "公益活动的网页链接");
}
private void doWeChatLogin() {
WXApiHelper.get().doWxLogin();
}
}
4、支付回调WXPayEntryActivity.java
public class WXPayEntryActivity extends AppCompatActivity implements IWXAPIEventHandler {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
WXApiHelper.get().handleIntent(getIntent(), this);
}
@Override
public void onReq(BaseReq baseReq) {
}
@Override
public void onResp(BaseResp baseResp) {
final int type = baseResp.getType();
if (ConstantsAPI.COMMAND_PAY_BY_WX == type) {
switch (baseResp.errCode) {
case BaseResp.ErrCode.ERR_OK:
//TODO 支付成功
break;
case BaseResp.ErrCode.ERR_COMM:
Toast.makeText(this, "支付发生错误", Toast.LENGTH_LONG).show();
finish();
break;
case BaseResp.ErrCode.ERR_USER_CANCEL:
Toast.makeText(this, "已取消", Toast.LENGTH_LONG).show();
finish();
break;
default:
Toast.makeText(this, "错误码：" + baseResp.errCode, Toast.LENGTH_LONG).show();
finish();
break;
}
}
}
}
5、分享和登录回调WXEntryActivity.java
public class WXEntryActivity extends AppCompatActivity implements IWXAPIEventHandler {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
WXApiHelper.get().handleIntent(getIntent(), this);
}
@Override
public void onReq(BaseReq baseReq) {
}
@Override
public void onResp(BaseResp baseResp) {
final int type = baseResp.getType();
if (ConstantsAPI.COMMAND_SENDAUTH == type) {//登录
switch (baseResp.errCode) {
case BaseResp.ErrCode.ERR_OK:
final String code = ((SendAuth.Resp) baseResp).code;
getWxLoginInfo(code);
break;
case BaseResp.ErrCode.ERR_AUTH_DENIED:
Toast.makeText(this, "拒绝授权微信登录", Toast.LENGTH_LONG).show();
finish();
break;
case BaseResp.ErrCode.ERR_USER_CANCEL:
Toast.makeText(this, "已取消", Toast.LENGTH_LONG).show();
finish();
break;
default:
Toast.makeText(this, "错误码：" + baseResp.errCode, Toast.LENGTH_LONG).show();
finish();
break;
}
} else if (ConstantsAPI.COMMAND_SENDMESSAGE_TO_WX == type) {//分享
finish();
}
}
private void getWxLoginInfo(String code) {
//TODO 通过微信SDK返回的code，请求自己的服务器获取用户信息。
}
}
总结：经过上面的简单封装，微信支付、登录和分享功能都使用起来都变得非常简单。同时增加了复用性，在不同项目里只要拷贝文件小改一下就可以。最后就是这个demo只是简单封装，如果有哪里做的不正确或者哪里还可以优化的话，可以在评论区告诉下我，大家互相学习学习。
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