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Timer simple TimerTask Java Android example



TimerTask with updating of TextView here




package cz.okhelp.timer;

import java.util.Timer;
import java.util.TimerTask;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class TimerActivity extends Activity {
TextView hTextView;
@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        hTextView = (TextView)findViewById(R.id.idTextView);
        MyTimerTask myTask = new MyTimerTask();
        Timer myTimer = new Timer();
//        public void schedule (TimerTask task, long delay, long period) 
//        Schedule a task for repeated fixed-delay execution after a specific delay.
//
//        Parameters
//        task  the task to schedule. 
//        delay  amount of time in milliseconds before first execution. 
//        period  amount of time in milliseconds between subsequent executions. 

        myTimer.schedule(myTask, 3000, 1500);        
        
    }
class MyTimerTask extends TimerTask {
	  public void run() {
		  // ERROR
		 hTextView.setText("Impossible");
		 // how update TextView in link below  
                 // //android.okhelp.cz/timer-task-timertask-run-cancel-android-example/
                 
	    System.out.println("");
	  }
	}


}


//android.okhelp.cz/asynctask-example-android-with-progressbar/
//android.okhelp.cz/timer-task-timertask-run-cancel-android-example/

397LW NO topic_id



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Change the title associated with this activity. If this is a top-level activity, the title for its window will change. If it is an embedded activity, the parent can do whatever it wants with it.




 String sTitle = "My new title";
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How get Android SDK location on PC with Eclipse | how-get-android-sdk-location-on-pc-with-eclipse


How get Android SDK location - PATH on PC from Eclipse tutorial.


  1. Open dialog from menu Window -> AVD and SDK manager

  2. In dialog select Available packages

  3. On top of dialog will displayed similar path: SKD Location: C:\PROGRA~1\Android\android-sdk-windows\



244

Replace graphic accent diacritic Java Function | replace-graphic-accent-java-function


Replace diacritic marks: Á Č Ď É Ě Í Ň Ó Ř Š Ť Ú Ů Ý Ž
á č ď é ě í ň ó ř š ť ú ů ý ž


public String replaceDiacritic (String inputStr) {
	
	Map<String, String> replacements = new LinkedHashMap<String,String>() {{
		//Velká
		put("Á","A");
		put("Č","C");
		put("Ď","D");
		put("É","E");
		put("Ě","E");
		put("Í","I");
		put("Ň","N");
		put("Ó","O");
		put("Ř","R");
		put("Š","S");
		put("Ť","T");
		put("Ú","U");
		put("Ů","U");
		put("Ý","Y");
		put("Ž","Z");
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		put("č","c");
		put("ď","d");
		put("é","e");
		put("ě","e");
		put("í","i");
		put("ň","n");
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		put("ť","t");
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		}
	};
	for(Map.Entry<String, String> entry : replacements.entrySet()) {
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         }	
	return inputStr;
}
	
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How to test dual panels - panes fragments on small device screen Android | how-to-test-dual-panels-fragments-on-small-device-screen-android


If You have old PC (Android in emulator with high screen resolution uses a lot of memory) or your testing phone have small screen, You can try this trick.
Rename layout folder for small device screen f.g. from layout into layout-swXXXdp and a large layout-sw600dp into layout.
Your phone with small screnn will do select xml file from renamed layout folder (for small screen).
You can to testing rotation with device en stability of fragments if an application changed orientation.
If you have old pc, you can try to make a new virtual device running on older version of Android, which uses less memory of computer.
For testing of rotation stability - application orientation changed - use on emulator Ctrl+F11, Ctrl+F12 key (Windows).

Important
Before the release of application, you have to rename layout folder to older name layout-sw600dp and layout-swXXXdp to layout.
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- folow instalation istructions //www.artodia.com/phpbb-styles/mobile/tutorials/mobile-detection/
- check url result on https://www.google.com/webmasters/tools/mobile-friendly


Editace Jana Žákovská : 2013-01-02 18:03:19
Počet článků v kategorii: 397
Url:timer-simple-timertask-java-android-example
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