Android实现微信登录的示例代码

    <Button
        android:id="@+id/wxlogin"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="微信登录" />

public class MainActivity extends Activity {
    private Button wxlogin;
    private Platform wx;
 @Override
    protected void onCreate(Bundle savedInstanceState) {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        wxlogin = (Button) login_view.findViewById(R.id.wxlogin);
        wxlogin.setOnClickListener(new wxloginListener());
        }


private class wxloginListener implements OnClickListener {
        @Override
        public void onClick(View arg0) {
            wx = ShareSDK.getPlatform(Wechat.NAME);
            System.out.println("微信是否已经授权1："+wx.isAuthValid());
            if(wx.isAuthValid()){
                wx.removeAccount(true);
            }
            System.out.println("微信是否已经授权2："+wx.isAuthValid());
            wx.SSOSetting(false); // 设置false表示使用SSO授权方式
            wx.authorize();
            wx.showUser(null);
            wx.setPlatformActionListener(new PlatformActionListener() {
                @Override
                public void onComplete(Platform platform, int i, HashMap<String, Object> hashMap) {
                    System.out.println("wx登录测试hashMap"+hashMap);
                    System.out.println("wx登录测试hashMap"+hashMap.toString());
                    String unionid = (String) hashMap.get("unionid");
                    System.out.println("wx登录测试unionid"+unionid);
                    System.out.println("wx登录测试"+platform.getDb().toString());
                    String thirdLoginId = platform.getDb().getUserId();
                    System.out.println("wx登录测试thirdLoginId："+thirdLoginId);
                    String userName = platform.getDb().getUserName();
                    System.out.println("wx登录测试userName："+ userName);
                    String image = platform.getDb().getUserIcon();
                    System.out.println("wx登录测试image："+image);
                    String sex = qq.getDb().getUserGender();
                    System.out.println("wx登录测试sex："+sex);
                    System.out.println("wx登录测试："+"成功了");
                }

                @Override
                public void onError(Platform platform, int i, Throwable throwable) {

                }

                @Override
                public void onCancel(Platform platform, int i) {

                }
            });
            wx.removeAccount(true);
            System.out.println("微信是否已经授权3："+wx.isAuthValid());
        }
    }
}