Eclipse revert old version Android Development Tools
If you have trouble with compilation of new project after you make a update of android development tools you can go back to old version of the tools.
-
- Open Help > About Eclipse... use the menu > About...
- Click the "Installation Details" button.
- Select the "Installation History" tab.
- Select one of the previous configurations.
- Click the "Revert" button at the bottom.
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Další témata ....(Topics)
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.YELLOW);
paint.setFilterBitmap(true);
Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),R.drawable.flower_blue);
int targetWidth = bitmapOrg.getWidth() * 2;
int targetHeight = bitmapOrg.getHeight() * 2;
Bitmap bmp = Bitmap.createBitmap(targetWidth, targetHeight,Bitmap.Config.ARGB_8888);
RectF rectf = new RectF(0, 0, targetWidth, targetHeight);
Canvas c = new Canvas(bmp);
Path path = new Path();
path.addRect(rectf, Path.Direction.CW);
c.clipPath(path);
c.drawBitmap( bitmapOrg, new Rect(0, 0, bitmapOrg.getWidth(), bitmapOrg.getHeight()),
new Rect(0, 0, targetWidth, targetHeight), paint);
Matrix matrix = new Matrix();
matrix.postScale(1f, 1f);
Bitmap resizedBitmap = Bitmap.createBitmap(bmp, 0, 0, targetWidth, targetHeight, matrix, true);
int h = bitmapOrg.getHeight();
canvas.drawBitmap(bitmapOrg, 10,10, paint);
canvas.drawBitmap(resizedBitmap, 10,10 + h + 10, paint);
}
}
}
If you have to type frequently the same code you can create templates which can be activate via autocomplete with Ctrl + Space.
For example lets assume setOnClickListener body.
To create a template for this select the menu Window->Preferences and Open Java -> Editor -> Templates
[caption id="attachment_1114" align="alignleft" width="300" caption="Eclipse-show-template-proposals"][/caption]
[caption id="attachment_1116" align="alignleft" width="300" caption="Eclipse - select your template"][/caption]
Quick help in Eclipse editor: select keyword and press Ctrl+1
For example lets assume setOnClickListener body.
To create a template for this select the menu Window->Preferences and Open Java -> Editor -> Templates
Type name of template in Eclipse s editor and pres Ctrl+Space
[caption id="attachment_1114" align="alignleft" width="300" caption="Eclipse-show-template-proposals"][/caption]
Select your template from intellisense help and press Enter or double click on selected item.
[caption id="attachment_1116" align="alignleft" width="300" caption="Eclipse - select your template"][/caption]
mIdButtonHome.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent browserIntent = new Intent(Intent.ACTION_VIEW,
Uri.parse("//android.okhelp.cz/category/software/"));
startActivity(browserIntent);
}
});
Quick help in Eclipse editor: select keyword and press Ctrl+1
Failed to rename directory ....
If using for update Android SDK manager,
try close Eclipse if is open.
Or change security settings of the folder which have problem.
Or disable antivirus for a moment.
If using for update Android SDK manager,
try close Eclipse if is open.
Or change security settings of the folder which have problem.
Or disable antivirus for a moment.
Context context = getApplicationContext();
Drawable drawable = context.getResources().getDrawable(R.drawable.my_image);
// convert drawable to bitmap
Bitmap bitmap = ((BitmapDrawable)drawable).getBitmap();
// convert bitmap to drawable
Drawable d = new BitmapDrawable(bitmap);
Android example source code.
Map TreeMap sorted by value Java Android example.
MainClass.java
MainClass.java
import java.util.Comparator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
public class MainClass {
public static void main(String[] arg) {
// english;germany dictionary
String[] arrayOfString = { "one;eine", "two;zwei", "three;drei",
"four;vier" };
Map<String, String> map = new TreeMap<String, String>();
for (String s : arrayOfString) {
String[] array = s.split(";");
String sKey = "", sValue = "";
if (array.length > 1) {
sKey = array[0];
sValue = array[1];
map.put(sKey, sValue);
}
}
for (Entry<String, String> entry: mapSortedByValues(map)) {
System.out.println(entry.getKey() + " = " + entry.getValue());
}
}
static <K, V extends Comparable<? super V>> SortedSet<Map.Entry<K, V>> mapSortedByValues(
Map<K, V> map) {
SortedSet<Map.Entry<K, V>> sortedSetOfEntries = new TreeSet<Map.Entry<K, V>>(
new Comparator<Map.Entry<K, V>>() {
@Override
public int compare(Map.Entry<K, V> entry_1, Map.Entry<K, V> entry_2) {
int res = entry_1.getValue().compareTo(entry_2.getValue());
return res != 0 ? res : 1;
// return entry_1.getValue().compareTo(entry_2.getValue());
}
});
sortedSetOfEntries.addAll(map.entrySet());
return sortedSetOfEntries;
}
}
/*
three = drei
one = eine
four = vier
two = zwei
*/
Editace: 2014-02-15 20:22:18
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Url:eclipse-revert-old-version-android-development-tools