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My personal nodejs share Forum: tnodejs.com reference: http://blog.csdn.net/nhconch/article/details/7295456
Problems to be Solved: How to preview and edit local images before uploading;Recently, we found that many of these functions are implemented based on flash, and many JavaScript implementations have poor code compatibility, especially when IE and Firefox are incompatible with chrome.Code implementation mainly uses the jquery plug-in imgareaselect
Android WebView interacting with JavaScriptNovember, 2015 Https://mthli.github.io/Android-WebView-JavaScript
Recently in doing some and webview related work, the period involved with JavaScript interactive operation, web search a lot of blog, feeling write is not very good, spent more time to see understand. Here to su
Reprint please explain the source!KQW Siege LionSource: Personal Station | CSDNThis article refers to the introduction of Android and HTML+JS interactionLoad Local HTMLcontentWebView = (WebView) findViewById(R.id.webview);// 加载Assets下的HtmlcontentWebView.loadUrl("file:///android_asset/html/test.html");Enable JavaScriptcontentWebView.getSettings().setJavaScriptEnabled(true);contentWebView.addJavascriptInterfa
WebView interaction with JavaScript-Android
In our work, we need to use WebView to interact with javascript. Below we will introduce a simple requirement.
Let's take a look at it first:
Requirements:
1. click a button to go to The WebView loading interface. If you want to share this interface with other platforms, the share button will be displayed on the curr
Reprint Please specify Source: http://blog.csdn.net/forwardyzk/article/details/46819925In the work, there is a need to use WebView and JavaScript to interact with, the following we have a simple need to introduce.First Look at:Demand:1. Click on a button to enter an interface to load WebView, assuming that the interface needs to share this interface to other platforms, then display the "Share" button in the current interface, assuming no need to share
Today, WebView with JavaScript in Android, the first is to add WebView controls to the layout file:[HTML]View Plaincopy
WebView
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
Then add the permissions in the manifest:[HTML]View Plaincopy
uses-permission android:name= " and
If WebView can interact with
handler are used in the code, which are ignored temporarily ).
Isn't I using sendjavascript instead of loadurl? Sendjavascript is the method provided by Cordova for webview encapsulation. In fact, we changed the sentence:
View. loadurl ("javascript:" + this. Callback );
The effect is the same (of course, if you do not use Cordova, but write your own activity, you must write it ).
Okay. After writing the class, we should expose this class to JS
current aava call. 4215 Ms. It runs on Intel's moorestown (1.5 GHz) and uses the same CPU as the netbook. On the netbook, run sunspider on the latest Firefox build, or on Firefox mobile build on the meego-based aava phone. The difference is very small. For a prototype phone, 4.2 seconds is impressive. These numbers confirm the CPU speed again and confirm that the sunspider speed is about to be reduced to 2 seconds (using the latest chrome or
://192.168.31.109/demo.html");
}
@JavascriptInterface
public void jsextent() {
Log.e(TAG,"========== js extension success.");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The
To facilitate interaction between Web pages and Android apps, the Android system provides a mechanism for invoking Java class methods in WebView JavaScript Web scripts. You can map a Java object to a JavaScript object as long as you call the Addjavascriptinterface method.
1. Mapping Java objects to
method provided by Cordova for WebView encapsulation. In fact, we changed the sentence:
View. loadUrl ("javascript:" + this. callback );
The effect is the same (of course, if you do not use Cordova, but write your own Activity, you must write it ).
Okay. After writing the class, we should expose this class to js:
AppView. getSettings (). setJavaScriptEnabled (true); // enable
Android Development, in addition to the use of the original eco-development approach, can also be developed using Java+html+javascript hybrid development, which can save a lot of development time, but also to enable users of different devices to obtain the same user experience. OK, no more nonsense, first come to see what to do today.The main is to achieve a simp
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