Android Fragment Examples
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Code look up at the Api Demos
android_fragments arguments attributes - three fragments on screen
android_fragments_alert_dialog
android_fragments_context_menu
android_fragments_custom_animation
android_fragments_dialog
android_fragments_dialog_or_activity
fragment_hide_show
fragment_layout
fragments_list_array
fragment_menu
android_fragments_get_result_from_fragment and tabs in two rows
android_fragments_recive_result
android_fragments_stack
fragment_tabs
android_fragments arguments attributes - three fragments on screen

android_fragments_alert_dialog

android_fragments_context_menu

android_fragments_custom_animation

android_fragments_dialog

android_fragments_dialog_or_activity

fragment_hide_show

fragment_layout

fragments_list_array

fragment_menu

android_fragments_get_result_from_fragment and tabs in two rows

android_fragments_recive_result

android_fragments_stack

fragment_tabs

397LW NO topic_id
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Další témata ....(Topics)
You have to add constructor!
public static class YourFragment extends Fragment {
//you have to add constructor!!!!!
public YourFragment(){}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_main, container, false);
return view;
}
}
// Context instead Activity as a parameter
@Override
public void onAttach(Context context) {
super.onAttach(context);
Activity a;
if (context instanceof Activity){
a=(Activity) context;
}
}
OnNoteClickedListener listener;
/* old emxample of usage
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
listener = (OnNoteClickedListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement OnNoteClickedListener");
}
}
*/
// new version of code
@Override
public void onAttach(Context context) {
super.onAttach(context);
Activity a;
if (context instanceof Activity){
a=(Activity) context;
try {
listener = (OnNoteClickedListener) a;
} catch (ClassCastException e) {
throw new ClassCastException(a.toString()
+ " must implement OnNoteClickedListener");
}
}
}
Long press by finger on screen
From dialogue select Widgets
Select your widget
Put your widget on the screen
Video tutorial - to add home screen widgets - Android 2.1
From dialogue select Widgets
Select your widget
Put your widget on the screen
Video tutorial - to add home screen widgets - Android 2.1
Converting to string: TypedValue{t=0x10/d=0xe a=-1}
- 14
// error
- "18"
// ok
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);
}
}
}

Editace: 2017-02-01 12:36:57
Počet článků v kategorii: 397
Url:android-fragment-examples
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