我如何通过从一个活动的信息的EditText到另一个网址在新的活动的的WebView加载？ [英] How do I pass info from one activity's EditText to another for the url to be loaded in that new activity's WebView?
问题描述
一切！我已经通过计算器了几个小时，现在搜索和无法找到解决我的问题。
all! I have been searching through StackOverflow for a few hours now and cannot find a solution to my problem.
我正在开发一款Android应用，需要采取通过从一个EditText在一个活动的用户输入（这恰好是一个int值）。然后我需要的EditText的int值要传递给第二个活动，并解析成一个URL装载到该次活动网页视图。但是，我不能得到这个工作。事实上，我不能让我的WebView在所有的工作，甚至试图加载像谷歌的网站。下面是我的code。
I am developing an android app that needs to take input from the user in one activity through an EditText (this happens to be an int value). I then need that EditText's int value to be passed to a second activity, and parsed into a url to be loaded into a webview in that second activity. However, I cannot get this to work. In fact, I cannot get my WebView to work at all, even trying to load websites like Google. Below is my code.
public void takeInput(View view) {
Intent intent = new Intent(this, WebViewActivity.class);
EditText editText = (EditText) findViewById(R.id.editText);
Integer vendorID = Integer.parseInt(editText.getText().toString());
intent.putExtra(EXTRA_VENDORID, vendorID);
startActivity(intent);
以上是被称为当屏幕上的按钮是pressed的OnClick方法。
Above is the method that is called when an onscreen button is pressed OnClick.
这是下一个活动的code如下。
The code from the next activity is below.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_web_view);
String testURL2 = "www.google.com";
WebView streetwiseSite = (WebView) this.findViewById(R.id.webView);
streetwiseSite.getSettings().setJavaScriptEnabled(true);
Intent intent = getIntent();
Bundle extras = intent.getExtras();
String vendorID = extras.getString(MainActivity.EXTRA_VENDORID);
Integer vendorID = Integer.parseInt(extras.getString(MainActivity.EXTRA_VENDORID));
String targetURL = "www.something.org/purchase/";
下面是XML code为我的第一个活动。
Here is the XML code for my first activity.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity">
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:background="@drawable/logo" />
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/imageView"
android:layout_centerHorizontal="true"
android:text="MobilePay"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:hint="Vendor ID #"
android:inputType="number" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/editText"
android:layout_centerHorizontal="true"
android:layout_marginTop="72dp"
android:onClick="takeInput"
android:text="Pay" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView"
android:layout_centerHorizontal="true"
android:layout_marginTop="34dp"
android:text="Enter Vendor ID and"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView2"
android:layout_centerHorizontal="true"
android:text="Payment Amount to Pay"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>
下面是我的XML code代表的WebView活动，第二个活动。
Here is my XML code for the WebView activity, the second activity.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.august.streetwise.WebViewActivity">
<WebView
android:id="@+id/webView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true" />
</RelativeLayout>
在理想情况下应该采取用户的输入，其解析到URL，并加载该网站。然而，这里是我从logcat中得到错误。
Ideally this should take the user's input, parse it into the URL, and load that website. However, here are the errors I get from logcat.
23 04-21：36：14.837 17904-17904 / com.myname.app W / BindingManager的：不能调用determinedVisibility（） - 从未见过的PID的连接：17904
04-21 23:36:14.837 17904-17904/com.myname.app W/BindingManager﹕ Cannot call determinedVisibility() - never saw a connection for the pid: 17904
任何想法？我已经出来拉我的头发了这一点。
Any ideas? I've been pulling my hair out over this.
推荐答案
WebView.loadUrl（）中不添加任何协议格式化字符串的开头。因此， www.something.org 不会自动成为 http://www.something.org 。
WebView.loadUrl() does not add any protocol formatting to the beginning of the string. Therefore, www.something.org does not automatically become http://www.something.org.
如果没有在字符串开头的协议信息， WebView.loadUrl（）抛出断然无益的误差 W / BindingManager的：不能叫determinedVisibility （） - 从未见过的PID的连接，因为 www.something.org 不是一个完整的网址
Without the protocol information at the beginning of the string, WebView.loadUrl() throws the decidedly unhelpful error W/BindingManager﹕ Cannot call determinedVisibility() - never saw a connection for the pid because www.something.org isn't a complete URL.
您可能会认为这种行为会被记录在案的地方。 ;）
You would think this behavior would be documented somewhere. ;)
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