相关疑难解决方法(0)

这是一个跟进问题:PHP:简单的方式来启动PayPal结账？

所以,我的问题是我指定了返回网址.但是,在使用PayPal付款后,我最终会在一个屏幕上显示:

您刚刚完成了付款.XXXX,您刚刚完成了付款.此付款的交易ID为:XXXXXXXXXXXXX.

我们会发送一封确认电子邮件至XX@XXXX.com.此交易将在您的对帐单上显示为PAYPAL.

Go to PayPal account overview

Run Code Online (Sandbox Code Playgroud)

我需要它不显示此屏幕并直接转到返回URL.我有:

• 设置"返回"变量
• 将"rm"变量设置为:2(根据指南=" 使用POST方法将买方的浏览器重定向到返回URL,并包含所有付款变量 ")

事实上,这是我的整个形式:

<form method="post" action="https://www.sandbox.paypal.com/cgi-bin/webscr">
  <input type="hidden" value="_xclick" name="cmd">
  <input type="hidden" value="onlinestore@thegreekmerchant.com" name="business">
  <!-- <input type="hidden" name="undefined_quantity" value="1" /> -->
  <input type="hidden" value="Order at The Greek Merchant:&lt;Br /&gt;Goldfish Flock BLG&lt;br /&gt;" name="item_name">
  <input type="hidden" value="NA" name="item_number">
  <input type="hidden" value="22.16" name="amount">
  <input type="hidden" value="5.17" name="shipping">
  <input type="hidden" value="0" name="discount_amount">        
  <input type="hidden" value="0" name="no_shipping">
  <input type="hidden" value="No comments" name="cn">
  <input type="hidden" value="USD" name="currency_code">
  <input type="hidden" value="http://XXX/XXX/XXX/paypal/return" name="return">
  <input …

我试图建立一个相机应用程序(我相当新)当我在真实设备上运行应用程序时它给了我这个错误:

    05-26 13:16:37.504 14076-14076/involved.pose9 E/AndroidRuntime: FATAL EXCEPTION: main
                                                            Process: involved.pose9, PID: 14076
                                                            java.lang.RuntimeException: Fail to connect to camera service
                                                                at android.hardware.Camera.<init>(Camera.java:511)
                                                                at android.hardware.Camera.open(Camera.java:368)
                                                                at involved.pose9.CameraActivity.surfaceCreated(CameraActivity.java:63)
                                                                at android.view.SurfaceView.updateWindow(SurfaceView.java:582)
                                                                at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:177)
                                                                at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:944)
                                                                at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2067)
                                                                at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1119)
                                                                at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6060)
                                                                at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
                                                                at android.view.Choreographer.doCallbacks(Choreographer.java:670)
                                                                at android.view.Choreographer.doFrame(Choreographer.java:606)
                                                                at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
                                                                at android.os.Handler.handleCallback(Handler.java:746)
                                                                at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                at android.os.Looper.loop(Looper.java:148)
                                                                at android.app.ActivityThread.main(ActivityThread.java:5443)
                                                                at java.lang.reflect.Method.invoke(Native Method)
                                                                at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
                                                                at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)

这是我的班级

    import android.graphics.PixelFormat;
    import android.hardware.Camera;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.SurfaceHolder;
    import android.view.SurfaceView;
    import android.view.Window;
    import android.view.WindowManager;

    import java.io.IOException;

    public …