Date time difference determine which is earlier Android Java example
AD MOB
Date difference in millisecond between two date, GregorianCalendar, Calendar, after(), befor(), getTimeInMillis().
public class HoriziontalScrollActivity 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;
StringBuilder strBuild = new StringBuilder();
Calendar firstDate = new GregorianCalendar(2011, Calendar.DECEMBER, 31);
Calendar secondDate = new GregorianCalendar(2012, Calendar.JANUARY, 1);
Boolean bDetermine = firstDate.after(secondDate); // false
strBuild.append("Is firsDate after secondDate? " + bDetermine + "
");
bDetermine = firstDate.before(secondDate); // true
strBuild.append("Is firsDate before secondDate? " + bDetermine + "
");
long differenceInMillisecond = 0L;
differenceInMillisecond = secondDate.getTimeInMillis()-firstDate.getTimeInMillis();
// second == 1000 millisecond
long second = differenceInMillisecond / 1000L;
strBuild.append("Difference between two dates is: " + second + "
");
txtV.setText(strBuild);
}
}
396LW NO topic_id
AD
Další témata ....(Topics)
drawArc(), Canvas, Paint, setStyle()
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new SampleView(this));
}
private static class SampleView extends View {
// CONSTRUCTOR
public SampleView(Context context) {
super(context);
setFocusable(true);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.CYAN);
Paint p = new Paint();
// smooths
p.setAntiAlias(true);
p.setColor(Color.RED);
p.setStyle(Paint.Style.STROKE);
p.setStrokeWidth(5);
// opacity
//p.setAlpha(0x80); //
RectF rectF = new RectF(50, 20, 100, 80);
canvas.drawOval(rectF, p);
p.setColor(Color.BLACK);
canvas.drawArc (rectF, 90, 45, true, p);
}
}
}
Example source code for Android Developers
// clickable TextView
public TextView createTextView(String sText, Context con){
TextView b = null;
try {
b = new TextView (con);
b.setTextSize(15.0f);
b.setTextColor(Color.rgb( 0, 0, 200));
b.setOnClickListener(this);
b.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
b.setText(sText);
//tr.addView(b, 60,30);
} catch (Exception e) {
e.printStackTrace();
return b;
}
return b;
}
/*****************/
public void onClick(View view) {
try {
String s = ((TextView) view).getText().toString();
}
catch (Exception e1) {
e1.printStackTrace();
}
}
/***********/
// if you want restore in TextView after chagne of orientation
// you have to put code to Manifest.xml android:configChanges
activity android:name=".main"
android:label="@string/app_name"
android:configChanges="keyboardHidden|orientation" //this line important !!!!!!!
Show keyboard Android phone apps development example source code.
// ActivityClass.java
InputMethodManager showSoftInput;
Button hBtnKeyboardShow ;
//onCreate
showSoftInput = (InputMethodManager)this.getSystemService(Context.INPUT_METHOD_SERVICE);
hBtnKeyboardShow = (Button)findViewById(R.id.btnKeyboardShow);
hBtnKeyboardShow.setOnClickListener(myButtonListener);
// END onCreate
//button listener
private OnClickListener myButtonListener = new OnClickListener() {
public void onClick(View v) {
try {
showSoftInput.getInputMethodList();
showSoftInput.toggleSoftInput(showSoftInput.SHOW_FORCED, 0);
} catch (Exception e) {
Log.e("Keyboard show ", e.getMessage());
}
}
};
public class ApokusActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new SampleView(this));
}
private static class SampleView extends View {
// CONSTRUCTOR
public SampleView(Context context) {
super(context);
setFocusable(true);
}
@Override
protected void onDraw(Canvas canvas) {
Paint paint = new Paint();
canvas.drawColor(Color.GREEN);
Bitmap b = Bitmap.createBitmap(200, 200, Bitmap.Config.ALPHA_8);
Canvas c = new Canvas(b);
c.drawRect(0, 0, 200, 200, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
paint.setTextSize(40);
paint.setTextScaleX(1.f);
paint.setAlpha(0);
paint.setAntiAlias(true);
c.drawText("Your text", 30, 40, paint);
paint.setColor(Color.RED);
canvas.drawBitmap(b, 10,10, paint);
}
}
}

String[] source = {"Hello","world","by","Android"};
String[] destination = new String[source.length];
System.arraycopy(source, 0, destination, 0, source.length);
Editace: 2011-09-29 19:28:59
Počet článků v kategorii: 396
Url:date-time-difference-between-two-dates
AD