Android Open Source - jsWebView My Web Chrome Client

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License

The source code is released under:

Apache License

Java Source Code

package wjj.js;
/*w w w  . j  a v a2s  . com*/
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.content.DialogInterface.OnClickListener;
import android.content.DialogInterface.OnKeyListener;
import android.graphics.Bitmap;
import android.os.Message;
import android.util.Log;
import android.view.KeyEvent;
import android.webkit.JsPromptResult;
import android.webkit.JsResult;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.widget.EditText;

public class MyWebChromeClient extends WebChromeClient {

  /**
   * ?????window.alert????????????title?????????file:////??
   */
  @Override
  public boolean onJsAlert(WebView view, String url, String message,
      JsResult result) {
    AlertDialog.Builder builder = new AlertDialog.Builder(view.getContext());
    builder.setTitle("alert????").setMessage(message)
        .setPositiveButton("??", null);// ??????????alert????????????????listener????null
  
    // ???keycode??84?????
    builder.setOnKeyListener(new OnKeyListener() {
      @Override
      public boolean onKey(DialogInterface dialog, int keyCode,
          KeyEvent event) {
        Log.v("onJsAlert", "keyCode==" + keyCode + "event=" + event);
        return true;
      }
    });
    // ???????back????
    builder.setCancelable(false);
    AlertDialog dialog = builder.create();
    dialog.show();
    result.confirm();// ??????????????confirm,???????????????????????????????alert????????????????alert??????
    return true;

  }

  @Override
  public boolean onJsBeforeUnload(WebView view, String url, String message,
      JsResult result) {
    return super.onJsBeforeUnload(view, url, message, result);
  }

  /**
   * ?????window.confirm????????????title?????????file:////??
   */
  @Override
  public boolean onJsConfirm(WebView view, String url, String message,
      final JsResult result) {
    final AlertDialog.Builder builder = new AlertDialog.Builder(
        view.getContext());
    builder.setTitle("confirm????").setMessage(message)
        .setPositiveButton("??", new OnClickListener() {
          @Override
          public void onClick(DialogInterface dialog, int which) {
            result.confirm();
          }
        }).setNeutralButton("????", new OnClickListener() {
          @Override
          public void onClick(DialogInterface dialog, int which) {
            result.cancel();
          }
        });
    builder.setOnCancelListener(new OnCancelListener() {
      @Override
      public void onCancel(DialogInterface dialog) {
        result.cancel();
      }
    });

    // ???keycode??84????????????????????????????????????????????
    builder.setOnKeyListener(new OnKeyListener() {
      @Override
      public boolean onKey(DialogInterface dialog, int keyCode,
          KeyEvent event) {
        Log.v("onJsConfirm", "keyCode==" + keyCode + "event=" + event);
        return true;
      }
    });
    // ???????back????
    // builder.setCancelable(false);
    AlertDialog dialog = builder.create();
    dialog.show();
    return true;

  }

  /**
   * ?????window.prompt????????????title?????????file:////??
   * window.prompt('?????????????', '618119.com');
   */
  @Override
  public boolean onJsPrompt(WebView view, String url, String message,
      String defaultValue, final JsPromptResult result) {
    final AlertDialog.Builder builder = new AlertDialog.Builder(
        view.getContext());
    builder.setTitle("prompt????").setMessage(message);
    final EditText et = new EditText(view.getContext());
    et.setSingleLine();
    et.setText(defaultValue);
    builder.setView(et);
    builder.setPositiveButton("??", new OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        result.confirm(et.getText().toString());
      }
    }).setNeutralButton("????", new OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        result.cancel();
      }
    });

    // ???keycode??84????????????????????????????????????????????
    builder.setOnKeyListener(new OnKeyListener() {
      @Override
      public boolean onKey(DialogInterface dialog, int keyCode,
          KeyEvent event) {
        Log.v("onJsPrompt", "keyCode==" + keyCode + "event=" + event);
        return true;
      }
    });

    // ???????back????
    // builder.setCancelable(false);
    AlertDialog dialog = builder.create();
    dialog.show();
    return true;
  }

}

Java Source Code List

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