Create array of strings in xml file Android example
Example source code for Android developers how create array of strings in *.xml file.
You can using array of strings in Spinner ( combobox - dropdown list ) or ListView etc.
You can using array of strings in Spinner ( combobox - dropdown list ) or ListView etc.
<resources>
<string-array name="colors">
<item>red</item>
<item>orange</item>
<item>yellow</item>
<item>green</item>
<item>blue</item>
</string-array>
</resources>
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How add item to ArrayList, sort ArrayList, search find index of item in ArrayList, min(), max() Java basic example.
import java.util.ArrayList;
import java.util.Collections;
public class MainClass {
public static void main(String[] arg) {
String[] arrayOfString = {"nothing", "Hello", "people"
, "bye-bye", "hello", "world!", "End" };
ArrayList<String> arrayList = new ArrayList<String>();
for(String s: arrayOfString)
arrayList.add(s);
Collections.sort(arrayList);
// foreach
for (String str: arrayList)
System.out.println(str);
Object objMin = Collections.min(arrayList);
System.out.println("Min is: " + objMin);
Object objMax = Collections.max(arrayList);
System.out.println("Max is: " + objMax);
int index = Collections.binarySearch(arrayList, "people");
System.out.println("Index of people is: " + index);
}
}
/*
End
Hello
bye-bye
hello
nothing
people
world!
Min is: End
Max is: world!
Index of people is: 5
*/
The exact physical pixels per inch of the screen
Get size of pixel
Get DPI
Get count of pixels per inch
Get size of pixel
Get DPI
Get count of pixels per inch
float mXDpi;
float mYDpi;
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
mXDpi = metrics.xdpi; // The exact physical pixels per inch of the screen in the X dimension.
mYDpi = metrics.ydpi;
float mMetersToPixelsX = mXDpi / 0.0254f; // 1 inch == 0.0254 metre
float mMetersToPixelsY = mYDpi / 0.0254f;
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);
}
}
}
I You use offline work for better building speed of project or for other purpose
https://gradle.org/releases
Offline work:
File - Settings - Gradle
- select Use local gradle distribution
- select path Gradle home:
- check Offline work
https://gradle.org/releases
Offline work:
File - Settings - Gradle
- select Use local gradle distribution
- select path Gradle home:
- check Offline work
Where file(s) does eclipse store Java code style settings to?
If you need copy any old templates to the new workspace.
You can edit the Eclipse Templates from menu Window - Preferences - Java - Editor - Templates.
If you need copy any old templates to the new workspace.
workspace\.metadata\.plugins\org.eclipse.core.runtime\.settings\org.eclipse.jdt.ui.prefs
You can edit the Eclipse Templates from menu Window - Preferences - Java - Editor - Templates.
Editace: 2013-12-09 10:55:08
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Url:create-array-of-strings-in-xml-file-android-example