add java code missed in previous commit
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2 changed files with 169 additions and 0 deletions
168
app/src/app/persistence/AppActivity.java
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168
app/src/app/persistence/AppActivity.java
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package app.persistence;
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import android.provider.Settings ;
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import android.content.Intent;
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import android.util.Log;
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import android.util.Base64;
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import java.util.Objects;
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import android.app.Activity;
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import android.os.Bundle;
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import android.os.CountDownTimer;
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import android.os.Environment;
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import android.text.method.ScrollingMovementMethod;
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import android.view.*;
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//import android.view.MenuItem;
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import android.view.ViewGroup.*;
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import android.widget.*;
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//import android.widget.Toast;
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//import android.widget.TextView;
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import android.webkit.*;
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import android.net.Uri;
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import org.json.JSONObject;
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//import android.webkit.WebView;
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//import android.webkit.WebMessage;
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//import android.webkit.WebMessagePort;
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import java.io.InputStream;
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import java.io.File;
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public class AppActivity extends Activity {
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public JSONObject doLs(JSONObject message){
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try{
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JSONObject file;
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File directory = new File(Environment.getExternalStorageDirectory().toString() + message.getString("path"));
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File[] files = directory.listFiles();
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for (int i = 0; i < files.length; i++)
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{
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try{
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//Log.d("ALEXINFO","filename"+files[i].getName());
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file = new JSONObject();
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file.put("name",files[i].getName());
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file.put("isFile",files[i].isFile());
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file.put("isDirectory",files[i].isDirectory());
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file.put("size",files[i].length());
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message.accumulate("result",file);
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} catch (Exception e) {
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Log.d("Exception EX1","ex1");
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}
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}
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} catch (Exception e) {
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Log.d("Exception EX2","ex2");
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}
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return message;
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}
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public JSONObject doCat(JSONObject message){
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try{
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File directory = new File(Environment.getExternalStorageDirectory().toString() + message.getString("path"));
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File[] files = directory.listFiles();
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for (int i = 0; i < files.length; i++)
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{
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try{
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message.accumulate("result",files[i].getName());
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} catch (Exception e) {}
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}
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} catch (Exception e) {}
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return message;
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}
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final static int APP_STORAGE_ACCESS_REQUEST_CODE = 501; // Any value
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private static final String BASE_URI = "https://alexmahr.de";
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private WebMessagePort port;
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private void initPort(WebView myWebView) {
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final WebMessagePort[] channel=myWebView.createWebMessageChannel();
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port=channel[0];
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port.setWebMessageCallback(new WebMessagePort.WebMessageCallback() {
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@Override
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public void onMessage(WebMessagePort porte, WebMessage message) {
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try{
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JSONObject messageJSON = new JSONObject(message.getData());
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JSONObject reply;
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if(Objects.equals(messageJSON.getString("function"),"ls"))
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{
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reply = doLs(messageJSON);
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reply.put("super","man");
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port.postMessage(new WebMessage(reply.toString()));
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return;
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}
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else if(Objects.equals(messageJSON.getString("function"),"cat"))
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{
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reply = doCat(messageJSON);
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reply.put("super","cat");
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port.postMessage(new WebMessage(reply.toString()));
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return;
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}
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else {
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reply=messageJSON;
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reply.put("super","else");
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reply.accumulate("result",1);
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reply.accumulate("result","something");
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port.postMessage(new WebMessage(reply.toString()));
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}
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} catch( Exception e) { }
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}
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});
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myWebView.postWebMessage(new WebMessage("init-from-java", new WebMessagePort[]{channel[1]}),Uri.parse(BASE_URI));
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}
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public String readFileFromAssets(String filename) {
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String filecontents = "";
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try {
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InputStream stream = getAssets().open(filename);
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int filesize = stream.available();
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byte[] filebuffer = new byte[filesize];
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stream.read(filebuffer);
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stream.close();
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filecontents = new String(filebuffer);
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} catch (Exception e) {
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// I <3 java exceptions
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}
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return filecontents;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// this removes the title bar (a ~1cm big strip at the top of the app showing its name
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this.requestWindowFeature(Window.FEATURE_NO_TITLE);
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// we create the webview (at least on the android 14 that is a webview that features avif + websockets etc....)
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WebView myWebView = new WebView(this);//activityContext);
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// enables webview debugging
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myWebView.setWebContentsDebuggingEnabled(true);
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// we create a webviewclient (setwebviewclient-vs-setwebchromeclient)
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WebViewClient myWebViewClient= new WebViewClient();
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myWebView.setWebViewClient(myWebViewClient);
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// to setup settings
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WebSettings myWebSettings = myWebView.getSettings();
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myWebSettings.setBuiltInZoomControls(true);
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myWebSettings.setDisplayZoomControls(false);
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myWebSettings.setJavaScriptEnabled(true);
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myWebView.addJavascriptInterface(this, "myJavaScriptInterface");
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// load the html from assets file
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String html = readFileFromAssets("index.html");
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myWebView.loadDataWithBaseURL(BASE_URI,html, "text/html", "UTF-8",null);
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//myWebView.loadData(encodedHtml, "text/html", "base64");
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// alternatively this could be to load a website
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//myWebView.loadUrl("https://alexmahr.de/ru");
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setContentView(myWebView);
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new CountDownTimer(500, 100) {
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public void onTick(long millisUntilFinished) {
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try{
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JSONObject MyJSONObject = new JSONObject("{\"json\":[1,2,3],\"something\":\"test\"}");
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myWebView.postWebMessage(new WebMessage("this is the message"+millisUntilFinished+ " " + MyJSONObject.get("something")),Uri.parse(BASE_URI));
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} catch( Exception e) { }
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// mTextField.setText("seconds remaining: " + millisUntilFinished / 1000);
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// myWebView.evaluateJavascript("document.body.innerHTML='SUP "+millisUntilFinished+" all is lost';",null);
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}
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public void onFinish() {
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initPort(myWebView);//myWebView.evaluateJavascript("document.body.innerHTML='all is lost';",null);
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}
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}.start();
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}
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@JavascriptInterface
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public String toString() {
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// this.webview.evaluateJavascript("(setTimeout(()=>{document.body.innerHTML='all gone';},2000)()",null);
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return "this is good";
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}
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}
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1
app/src/package
Symbolic link
1
app/src/package
Symbolic link
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@ -0,0 +1 @@
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app/persistence
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