我打开Amazon.com域中的任何页面(例如"http://www.amazon.com"),然后尝试像这样注入JQuery:
var injected = page.injectJs('jquery-1.7.1.js');
console.log("jquery was injected successfully: " + injected);
此代码将打印true到控制台.但是,尝试$(document)从内部访问page.evaluate()如下:
page.onLoadFinished = function (status) {
var results = page.evaluate(function() {
$(document);
});
phantom.exit();
};
将打印TypeError: 'undefined' is not a function到控制台.
此代码适用于我尝试过的大多数其他域.我注意到亚马逊似乎有自己的JQuery版本加载,我想知道它是否可能与我正在以某种方式加载的JQuery版本冲突.有任何想法吗？
创建BroadcastReceiver,在安装/卸载任何应用程序时显示应用程序名称和版本号.但我得到包名intent.getData().但是当我试图使用packagemanager找到该应用程序的名称时,它会在所有安装/卸载/替换的情况下抛出异常.可能存在的问题是什么？如何解决这个问题？
码:
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.widget.Toast;
public class ApplicationStatusNotification extends BroadcastReceiver {
/**
* This method receives message for any application status(Install/ Uninstall) and display details.
*/
@Override
public void onReceive(Context context, Intent intent) {
// Get application status(Install/ Uninstall)
boolean applicationStatus = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
String toastMessage = null;
// Check if the application is install or uninstall and display the message accordingly
if(intent.getAction().equals("android.intent.action.PACKAGE_INSTALL")){
// Application Install
toastMessage = "PACKAGE_INSTALL: …根据尝试到ListView点击项目来设置文本菜单标题.ListView包含书签列表 - > FAVICON + BOOKMARK TITLE
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
menu.add(0, EDIT_ID, 0, R.string.menu_edit);
menu.add(0, DELETE_ID, 0, R.string.menu_delete);
menu.add(0, SHARE_ID, 0, R.string.menu_share);
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
View itemID = (info.targetView);
menu.setHeaderTitle("bla" + itemID);
}
当我运行这段代码就说明android.widget.RelativeLayout@423d2389或什么,如果我改变itemID到String itemID = ((TextView) info.targetView).getText().toString();我得到强制关闭的,即使在Eclipse中显示没有错误或当我运行该应用程序长按.
我也希望以同样的方式获得favicon ...
感谢帮助!
我已经为onClick另一个视图的自定义对话框顶部编写了代码.它给了我nullpointer exception.我也尝试过使用Layout inflater.它给了我错误ok.setOnclickListener.我的代码有什么问题？
ImageButton search =(ImageButton) findViewById(R.id.search);
search.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Dialog searchDialog = new Dialog(Page.this);
/*LayoutInflater inflater = (LayoutInflater) getApplicationContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.search, null);
searchDialog.addContentView(layout, new LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
searchDialog.setContentView(layout);*/
searchDialog.setContentView(R.layout.search);
searchDialog.setTitle("Search Dialog");
searchDialog.setCancelable(true);
Button ok = (Button)findViewById(R.id.OkButton);
ok.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String searchString = null;
EditText searchText = (EditText)findViewById(R.id.searchText);
if(searchText.getText()!=null){
searchString = searchText.getText().toString();
}
Log.i("TAG","Search word :"+searchString);
}
});
searchDialog.show(); …我目前修改了"Google地图视图"代码(如下所示),但是当地图加载并且您点击地图上的项目时,它会返回错误.
我相信它与mContext的null值有关,但我不确定,如果有人能帮我解决这个问题,我真的很感激:
protected boolean onTap(int index) {
OverlayItem item = mOverlays.get(index);
Context mContext = null;
AlertDialog.Builder dialog = new AlertDialog.Builder(mContext);
我的地图类:
package testing.map;
import java.util.List;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
public class Mapview extends MapActivity {
/** Called when the activity is first created. */
protected boolean isRouteDisplayed(){
return false;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mapview);
MapView mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
List<Overlay> mapOverlays = mapView.getOverlays(); …我刚开始使用Netbeans 7.1.1并且在使用时遇到了问题taglib,它说的uri cannot be resolved in web.xml也不是jar文件.
我该怎么办？
我还发现这个问题可以通过添加jstl.jar和standard.jstlWEB-INF文件来解决.但没有改善.
那么有人可以建议如何解决这个URI问题？
我一直在网上搜索如何将画布上的内容转换为位图.我尝试了多种方法来实现这一点,例如将绘图缓存保存到位图,但最终结果是背景位图闪烁了一会儿,然后变成了黑屏.测试图像显示在背景上,但不会被下次调用的背景覆盖OnDraw.
MainThreading{
...
if(notuptodate == true){
//call readyBackground to create the background bitmap
this.mainPanel.readyBackground(canvas);
//post the canvas
surfaceHolder.unlockCanvasAndPost(canvas);
//clean the Canvas
canvas = null;
//ready new Canvas
canvas = this.surfaceHolder.lockCanvas();//lock the canvas to enable editing
}//if not true
if (MainThreading.notuptodate == false){
mainPanel.onDraw(canvas);
}//if false
...
}//mainthreading
//this method is run first to create the Bitmap that on draw will use
public void readyBackGround(Canvas canvas){
if (MainThreading.notuptodate){
//method used to draw multiple Bitmaps onto the canvas
renderBackground(canvas);
//private …我搜索并查看了这样的多个问题,但我的问题与我发现的任何问题都有所不同.我看过Java Docs.
如何打开此c文件的等价物:
stream1 = fopen (out_file, "r+b");
一旦我从文件中完成了部分读取,无论文件中有多少字节,第一次写入都会使下一次读取返回EOF.
基本上我想要一个不这样做的文件I/O流.我正在尝试做的全部目的是替换当前文件中现有文件中的字节.在进行Read-> Write之前,我不想在副本中复制或复制.
我正在尝试使用以下内容获取专辑封面照片:
$facebook->api("/{ALBUM_ID}/picture", "get");
但是,如果我使用上面的代码,我什么也得不回,如果我尝试在Facebook上使用Open Graph API资源管理器,它只是在那里加载图形.
如果我从浏览器访问它,我会得到一个返回图像.
以上调用是否不返回图片网址？如果没有,它返回什么以及如何使用它？
我正在关注Heroku-Facebook App教程,并在尝试在Facebook上查看我的应用时出错.与默认的应用程序主页相反,屏幕上会显示以下错误和回溯.
TypeError
TypeError: Incorrect padding
Traceback (most recent call last)
File "/app/lib/python2.7/site-packages/flask/app.py", line 1306, in __call__
return self.wsgi_app(environ, start_response)
File "/app/lib/python2.7/site-packages/flask/app.py", line 1294, in wsgi_app
response = self.make_response(self.handle_exception(e))
File "/app/lib/python2.7/site-packages/flask/app.py", line 1292, in wsgi_app
response = self.full_dispatch_request()
File "/app/lib/python2.7/site-packages/flask/app.py", line 1062, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/app/lib/python2.7/site-packages/flask/app.py", line 1060, in full_dispatch_request
rv = self.dispatch_request()
File "/app/lib/python2.7/site-packages/flask/app.py", line 1047, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/app/exampleap
修复此错误需要采取哪些具体步骤？