原文地址：http://droidyue.com/blog/2014/09/20/interaction-between-java-and-javascript-in-android/
Activiy
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final WebView myWebView = (WebView) findViewById(R.id.myWebView);
WebSettings settings = myWebView.getSettings();
settings.setJavaScriptEnabled(true);
myWebView.addJavascriptInterface(new JsInteration(), "control");
myWebView.setWebChromeClient(new WebChromeClient() {
});
myWebView.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
testMethod(myWebView);
}
});
myWebView.loadUrl("file:///android_asset/js_java_interaction.html");
}
private void testMethod(WebView webView) {
String call = "javascript:sayHello()";
//call = "javascript:alertMessage(\"" + "content" + "\")";
call = "javascript:toastMessage(\"" + "content" + "\")";
//call = "javascript:sumToJava(1,2)";
webView.loadUrl(call);
}
public class JsInteration {
@JavascriptInterface
public void toastMessage(String message) {
Toast.makeText(getApplicationContext(), message, Toast.LENGTH_LONG)
.show();
}
@JavascriptInterface
public void onSumResult(int result) {
//Log.i(LOGTAG, "onSumResult result=" + result);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
Html代码
<html>
<script type="text/javascript">
function sayHello() {
alert("Hello")
}
function alertMessage(message) {
alert(message)
}
function toastMessage(message) {
window.control.toastMessage(message)
}
function sumToJava(number1, number2){
window.control.onSumResult(number1 + number2)
}
</script>
Java-Javascript Interaction In Android
</html>
时间： 2024-10-21 05:31:55