Okhelp.cz

Recepty, články, nápady, programování. Dříve dum-zahrada, finance, internet a know-how.okhelp.cz Pro lepší výsledky hledání používejte i diakritiku.

Create Image From View Screen Android


AD MOB


WebView_webview = (WebView)findViewById(R.id.webViewMapa);
_webview.getSettings().setBuiltInZoomControls(true);
_webview.setBackgroundColor(Color.parseColor("#E8EAE8"));
// _webview.loadUrl( ... some your page

Bitmap b = Bitmap.createBitmap(_webview.getWidth()/2, _webview.getHeight(), Bitmap.Config.ARGB_8888);
// you can to draw on bitmap
Canvas c = new Canvas(b);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setStrokeWidth(15.f);
paint.setColor(Color.RED);
paint.setStyle(Paint.Style.STROKE);
//paint.setShadowLayer(5.f, 0, 5.f, 0xFF000000);
_webview.draw(c); // put into canvas content of view like image
c.drawLine(70, 0, 150, 350, paint);// draw some line
//Rect oval = new Rect(0, 0, 100, 100);
//c.drawArc(oval, 0, 180, false, paint);

// you can show bitmap in other view
((ImageView)findViewById(R.id.imageView1)).setImageBitmap(b);


397LW NO topic_id




AD

Další témata ....(Topics)


240

AsyncTask Example Android with ProgressBar | asynctask-example-android-with-progressbar


MainActivity.java

package com.asynctaskexample;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;

public class MainActivity extends Activity {
	private TextView textView;
	private ProgressBar progressBar;
	private DownloadWebPageTask mTask = null;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		textView = (TextView) findViewById(R.id.TextView01);
		downloadPage();
	}

	// AsyncTask <TypeOfVarArgParams , ProgressValue , ResultValue> .
	private class DownloadWebPageTask extends AsyncTask<String, Integer, String> {

		@Override
		protected void onPreExecute() {
			//textView.setText("Hello !!!");
			progressBar = (ProgressBar) findViewById(R.id.progressBar1);
			progressBar.setVisibility(View.VISIBLE);
			super.onPreExecute();
		}

		@Override
		protected void onProgressUpdate(Integer... values) {
			super.onProgressUpdate(values);

		}

		@Override
		protected String doInBackground(String... urls) {
			String response = "";
			for (String url : urls) {
				DefaultHttpClient client = new DefaultHttpClient();
				HttpGet httpGet = new HttpGet(url);
				try {
					HttpResponse execute = client.execute(httpGet);
					InputStream content = execute.getEntity().getContent();

					BufferedReader buffer = new BufferedReader(new InputStreamReader(
							content));
					String s = "";
					while ((s = buffer.readLine()) != null) {
						response += s;
					}

				} catch (Exception e) {
					e.printStackTrace();
				}
			}
			return response;
		}

		@Override
		protected void onPostExecute(String result) {
			progressBar.setVisibility(View.INVISIBLE);
			textView.setText(result);
		}
	}

	private void downloadPage() {
		if (mTask != null
				&& mTask.getStatus() != DownloadWebPageTask.Status.FINISHED) {
			mTask.cancel(true);
		}
               // execute(String[]) you can put array of links to web pages, or array of Integer[] 
               // if first param is Integer[] etc.
		mTask = (DownloadWebPageTask) new DownloadWebPageTask()
				.execute(new String[] { "//android.okhelp.cz/android-market.html",
						"//android.okhelp.cz/android-market.html" });
	}

	@Override
	protected void onDestroy() {
		super.onDestroy();

		if (mTask != null
				&& mTask.getStatus() != DownloadWebPageTask.Status.FINISHED) {
			mTask.cancel(true);
			mTask = null;
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.activity_main, menu);
		return true;
	}

}




activity_main.xml

<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ProgressBar
        android:id="@+id/progressBar1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/TextView01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

</LinearLayout>



AndroidManifest.xml do not forget INTERNET uses-permission !!!!!!!

<uses-permission android:name="android.permission.INTERNET" />

278

Change Screen Orientation Programmatically Android | change-screen-orientation-programmatically-android


Landscape - portrait orientation change:

boolean mbOrientationLandscape = true;
if(mbOrientationLandscape ){
	setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
	mbOrientationLandscape =false;
}else{
	setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
	mbOrientationLandscape =true;
}

206

at java.util.Arrays$ArrayList.get(Arrays.java:75) | at-java-util-arraysarraylist-getarrays-java75


Problem in Android application:

E/AndroidRuntime(416): FATAL EXCEPTION: main
E/AndroidRuntime(416): java.lang.IndexOutOfBoundsException
E/AndroidRuntime(416): 	at java.util.Arrays$ArrayList.get(Arrays.java:75)
E/AndroidRuntime(416): 	at android.widget.ArrayAdapter.getItem(ArrayAdapter.java:298)
E/AndroidRuntime(416): 	at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:351)
E/AndroidRuntime(416): 	at android.widget.ArrayAdapter.getView(ArrayAdapter.java:323)
E/AndroidRuntime(416): 	at android.widget.Spinner.makeAndAddView(Spinner.java:192)
E/AndroidRuntime(416): 	at android.widget.Spinner.layout(Spinner.java:151)
E/AndroidRuntime(416): 	at android.widget.Spinner.onLayout(Spinner.java:115)


Solution: check code for set and get selection

// Spinner _spin1 contain only  49 items 
// you can set max 48 ( range 0 - 48)
// 50 is IndexOutOfBoundsException
_spin1.setSelection(50);
196

Samsung S6102 Galaxy Y Duos | samsung-s6102-galaxy-y-duos


Samsung S6102 Galaxy Y Duos umožňuje pracovat se dvěma aktivními SIM kartami a má GPS navigaci. Cena cca 4.500 korun / léto 2012.

Displej
Rozlišení displeje 320 x 240
Velikost displeje 3.14 "
Počet barev 262000
Rozměry 104 mm x 60 mm x 11.5 mm
Fotoaparát 3 Mpix, natačení videosekvencí
Operační system Android 2.3 (Gingerbread)
Procesor 832 MHz
Funkce Dual sim, Změny velikosti písma, Java, Internetový prohlížeč Přehrávání MP3, jack 3,5, Psaní SMS a e-mailů Multimediální zprávy MMS, Dlouhé SMS, Emailový prohlížeč, Kontakty a volání Hlasité handsfree, MP3/WMA/AAC vyzvánění, Skupiny volajících, Baterie
Typ baterie Li-Ion 1300 mAh
Doba hovoru 370 min
Pohotovostní doba 440 hodin
Uživatelská paměť 160 MB
Datové funkce GPS modul, WiFi, Bluetooth, GPRS, EDGE, Hardwarový modem
Aplikace Diktafon, Kalendář, FM rádio, Záznamník hovoru, Hry v telefonu, Kalkulačka, Budík
Mobilní telefony Samsung mají velmi dobrý poměr KVALITA / CENA


samsung s6102 galaxy y duos
44

No resource found that matches the given name Eclipse Android xml file | no-resource-found-that-matches-the-given-name-eclipse-android-xml-file


No resource found that matches the given name - error examples.
Exist resource file?
Is code written correctly?

// No resource found that matches the given name (at id with value @id/myButton).
 android:id="@id/myButton" // invalid id notation
 android:id="@+id/myButton" // correct


 // No resource found that matches the given name 
// (at icon with value @drawable/icons).
// exist file icons in res/drawable folder?
<application android:icon="@drawable/icons" 

//No resource found that matches the given name 
//(at theme with value @style/MyThem).
<activity android:name=".Main"
                  android:label="@string/app_name"
                  android:theme="@style/MyThem">

// Exist style MyThem  in styles.xml ?  No only MyTheme
<style name="MyTheme" parent="android:Theme">
        <item name="android:windowTitleSize">50px</item>
</style>



// exist file my_background in folder drawable ?
android:background="@drawable/my_background" // 

// no resource found that matches the given name(at "label" with value "@string/app_name")
// have you the string resource defined in res/values/strings.xml ?
<string name="app_name">"My App"</string>




Editace: 2013-07-08 07:38:23
Počet článků v kategorii: 397
Url:create-image-from-view-screen-android

AD
11 Share
Share
Tweet