Links too close together Mobile friendly page

Calendar cal = new GregorianCalendar(), int year = cal.get(Calendar.YEAR),
ERA, MONTH, DAY_OF_MONTH, DAY_OF_WEEK, Android example code.

public class MainActivity extends Activity {
TextView txtV;
	Context cntx;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        txtV = (TextView)findViewById(R.id.idLabel);
        cntx = this;
        Calendar cal = new GregorianCalendar();

     int era = cal.get(Calendar.ERA);  // 0 B.C. before Christ, 1 Anno Domini              
     txtV.setText(txtV.getText() +"

" +  era);
     int year = cal.get(Calendar.YEAR);   // 2011          
     txtV.setText(txtV.getText() +"

" +  year);
     int month = cal.get(Calendar.MONTH);    // 0 is Januar       
     txtV.setText(txtV.getText() +"

" +  month);
     int day = cal.get(Calendar.DAY_OF_MONTH); // 1 to 31     
     txtV.setText(txtV.getText() +"

" +  day);
     int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK); // 1=Sunday, 2=Monday ...
     txtV.setText(txtV.getText() +"

" +  dayOfWeek);
        
    }
}

While cycle Java basic example with array of strings.

MainClass.java

public class MainClass {
	public static void main(String[] arg) {
		String[] arrayOfString = { "Hello", "people", "hello", "world!" };
                int i = 0;
		while ( i < arrayOfString.length ){
			System.out.println(arrayOfString[i]);
			i++;
		}
	}
}

Bitmap size calculation:
bmpHeight * bmpWidth
For example:
Resolution of image 1024x860 = 880 640 pixels
If every pixel get 4 byte of memory:
880 640x4= 3 522 560 (3.5MB)

Get bitmap size without allocation of memory:

   	BitmapFactory.Options options = new BitmapFactory.Options();
        // If set to true, the decoder will return null (no bitmap), but the out... fields will still
        // be set, allowing the caller to query the bitmap without having to allocate the memory for its pixels. 
    	options.inJustDecodeBounds = true; 
    	BitmapFactory.decodeResource(getResources(), R.drawable.my_image, options);
    	int imageHeight = options.outHeight; // 1024
    	int imageWidth = options.outWidth; // 860
    	String imageType = options.outMimeType; // .jpg .png .gif
 

Get Memory size:
Make your bitmap not bigger as maxMemory size
final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);

    float density = getResources().getDisplayMetrics().density;

    Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();
    Debug.getMemoryInfo(memoryInfo);
    final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
    final int freeMemory = (int) (Runtime.getRuntime().freeMemory() / 1024);
    String memMessage = String.format(
        "Free=%d kB,

MaxMem=%d kB,

 Memory: Pss=%.2f MB, Private=%.2f MB, Shared=%.2f MB",
        freeMemory,
        maxMemory,
        memoryInfo.getTotalPss() / 1024.0,
        memoryInfo.getTotalPrivateDirty() / 1024.0,
        memoryInfo.getTotalSharedDirty() / 1024.0);
    ((TextView)findViewById(R.id.textViewInfo)).setText(memMessage );

Very very quick start of Android Emulator from Eclipse.

1. Go to Eclipse s menu Window -> Android SDK and AVD Manager


2. Select Virtual devices


3. Select check box Snapshot: Enabled


4. Press Edit AVD button.

If will closed Android Emulator all data will saved on disk.
If will reopen Android Emulator, configuration and data will read from disk.


[caption id="attachment_768" align="alignleft" width="300" caption="android-emulator-enable-quick-start"][/caption]

StringBuilder, res/raw folder, try catch finaly throws, BufferedReader, InputStream, openRawResource, getResources Android example

MainActivity.java

public class MainActivity extends Activity {
TextView txtV;
	Context cntx;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        txtV = (TextView)findViewById(R.id.idLabel);
        cntx = this;
        try {
			StringBuilder strBuilder = myFunction(cntx);
			txtV.setText(strBuilder);
		} catch (IOException e) {
			e.printStackTrace();
		}

        
    }
    
    
    private StringBuilder myFunction(Context context) throws IOException {
        final Resources resources =  context.getResources();
        InputStream inputStream = resources.openRawResource(R.raw.my_file);
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        StringBuilder strBuild = new StringBuilder();
        try {
            String line;
            while ((line = reader.readLine()) != null) {
            	strBuild.append(line);
            }
        } finally {
            reader.close();
        }
       return strBuild; 
       
    }
}