Android WebView-使用Javascript设置HTML字段焦点
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我有一个带有可见的“ 0”组件的应用程序，该组件用于显示一些动态生成的HTML（也可以运行Javascript）。启用了“ 0”。
对于几页，我试图在页面加载完成后设置输入文本框之一的焦点-不是通过Body
onLoad()
onPageFinished()
webview.loadURL(\"javascript:JSMethod();\");
document.getElementById(\'text1\').focus()
Focus Text1
Java Focus Text1
Java Focus Text1 And Keyboard Open
WebView.loadURL()
Button#2
webview.requestFocus()
requestFocusOnTouch()
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.inputmethod.InputMethodManager;
import android.webkit.JsResult;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class WebViewProjectTestJSHTMLFocusActivity extends Activity {
Activity _current = null;
WebView wv = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
_current = this;
//setContentView(R.layout.main);
String data = \"<html><body>\" +
\"<script>function focusser() { document.getElementById(\\\"text1\\\").focus(); } </script>\" +
\"<script>function javaFocusser() { javautil.javaFocus(false); } </script>\" +
\"<script>function javaFocusserKeyboard() { javautil.javaFocus(true); } </script>\" +
\"Text 1<input type=\'text\' id=\'text1\'/><br/>\" +
\"Text 2<input type=\'text\' id=\'text2\'/><br/>\" +
\"<input type=\'button\' value=\'Focus Text1\' onClick=\'focusser()\'/>\" +
\"<input type=\'button\' value=\'Java Focus Text1\' onClick=\'javaFocusser()\'/>\" +
\"<input type=\'button\' value=\'Java Focus Text1 And Keyboard Open\' onClick=\'javaFocusserKeyboard()\'/>\" +
\"</body></html>\";
wv = new WebView(this);
wv.getSettings().setJavaScriptEnabled(true);
// Set some HTML
wv.loadDataWithBaseURL(\"file:///android_asset/\", data, \"text/html\", \"UTF-8\", null);
// Call back required after page load finished
wv.setWebViewClient(new CustomWebViewClient());
// Enable Alert calls
wv.setWebChromeClient(new CustomWebChromeClient());
// For JS->Java calls
wv.addJavascriptInterface(this, \"javautil\");
setContentView(wv);
}
/**
* Calls the same javascript and forces the keyboard to open
*/
public void javaFocus(final boolean shouldForceOpenKeyboard) {
Thread t = new Thread(\"Java focusser thread\") {
public void run() {
wv.loadUrl(\"javascript:focusser();\");
if(shouldForceOpenKeyboard) {
InputMethodManager mgr = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
mgr.showSoftInput(wv, InputMethodManager.SHOW_IMPLICIT);
}
}
};
// Run on the View Thread.
_current.runOnUiThread(t);
}
/**
* Calls focus method after the page load is complete.
*/
final class CustomWebViewClient
extends WebViewClient {
@Override
public void onPageFinished(WebView view, String url) {
// javaFocus(true);
Log.d(\"TestExamples\", \"focusser call complete\");
}
}
final class CustomWebChromeClient
extends WebChromeClient {
@Override
public boolean onJsAlert(WebView view, String url, String message, JsResult result) {
Log.d(\"TestExamples\", \"JS Alert :: \" + message);
return false;
}
}
}
javaFocus()
WebView
document.getElementById(\"text1\").focus();
public void javaFocus(final boolean shouldForceOpenKeyboard) {
Thread t = new Thread(\"Java focusser thread\") {
public void run() {
wv.requestFocus(View.FOCUS_DOWN);
wv.loadUrl(\"javascript:focusser();\");
if(shouldForceOpenKeyboard) {
InputMethodManager mgr = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
mgr.showSoftInput(wv, InputMethodManager.SHOW_IMPLICIT);
}
}
};
// Run on the View Thread.
_current.runOnUiThread(t);
}
onCreate()
..... More onCreate code before....
// Enable Alert calls
wv.setWebChromeClient(new CustomWebChromeClient());
// For JS->Java calls
wv.addJavascriptInterface(this, \"javautil\");
setContentView(wv);
new Thread(\"After sometime Focus\") {
public void run() {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
javaFocus(true);
}
}.start();
.... onCreate() ends after this....
没有找到相关结果
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雇砰