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non-working because JavasBrigde <> Webview thread

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This commit is contained in:
Alexander Mahr 2024-10-09 16:03:27 +02:00
parent 8785107ea5
commit 1c4c210091
3 changed files with 9 additions and 34 deletions
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4
apk/src/app/example/ExampleApp.java
View file

@ -18,11 +18,11 @@ public class ExampleApp extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
MyJavascriptInterface myJavaScriptInterface = new MyJavascriptInterface(this);
// this removes the title bar (a ~1cm big strip at the top of the app showing its name
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
// we create the webview (at least on the android 14 that is a webview that features avif + websockets etc....)
WebView myWebView = new WebView(this);//activityContext);
MyJavascriptInterface myJavaScriptInterface = new MyJavascriptInterface(this,myWebView);
// we create a webview (there is also setwebviewclient-vs-setwebchromeclient
WebViewClient myWebViewClient= new WebViewClient();
myWebView.setWebViewClient(myWebViewClient);
@ -39,7 +39,7 @@ public class ExampleApp extends Activity {
// alternatively this could be to load a website
//myWebView.loadUrl("https://alexmahr.de/ru");
setContentView(myWebView);
new java.util.Timer().schedule( new MyRunnable(myWebView),2000);
// new java.util.Timer().schedule( new MyRunnable(myWebView),2000);
// java.util.TimerTask() {
// @Override
// public void run() {

9
apk/src/app/example/MyJavascriptInterface.java
View file

@ -18,9 +18,11 @@ import java.io.*;
public class MyJavascriptInterface {
private Activity activity;
private WebView webview;
public MyJavascriptInterface(Activity activity) {
public MyJavascriptInterface(Activity activity,WebView webview) {
this.activity = activity;
this.webview = webview;;
}
// @JavascriptInterface
@ -30,5 +32,8 @@ public class MyJavascriptInterface {
// activity.startActivity(intent);
// }
@JavascriptInterface
public String toString() { return "injectedObject"; }
public String toString() {
this.webview.evaluateJavascript("(setTimeout(()=>{document.body.innerHTML='all gone';},2000)()",null);
return "injectedobject";
}
}

30
apk/src/app/example/MyRunnable.java
View file

@ -1,30 +0,0 @@
package app.example;
import android.util.Log;
import android.widget.TextView;
import android.app.Activity;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.view.MenuItem;
import android.view.*;
import android.widget.*;
import android.webkit.WebView;
import android.webkit.*;
import android.view.ViewGroup.*;
import android.util.Base64;
import java.util.Timer;
import java.util.TimerTask;
public class MyRunnable extends TimerTask
{
WebView InnerWebView;
public MyRunnable(WebView MyWebView){
InnerWebView=MyWebView;
}
public void run()
{
InnerWebView.evaluateJavascript("document.body.innerHTML='all is lost';",null);
System.out.println( "Now is " );
}
}