ArrayList Sublist Join Compare Loop Synchronize HashMap Sort Tree
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getContext() getApplicationContext() method Java Android example source
Context myContext_1 = ThisClassName.this; // to open a Dialog
Context myContext_2 = getContext();
Context myContext_3 = this.getContext();
Context myContext_4 = this;
Context myContext_5 = this.getApplicationContext ();
OnClickListener getImageBtnOnClick = new OnClickListener() {
public void onClick(View view) {
Context context = view.getContext();
}
};
// Toast
Toast.makeText(getApplicationContext(), "Context == getApplicationContext "
, Toast.LENGTH_SHORT).show();
// store Context in public class
public class MyActivity extends Activity {
public static Context myCnt = null;
...
protected void onCreate(Bundle icicle) {
...
myCnt = this;
MyStorage.setContext(myCnt);
// or
// MyStorage.setContext(this);
// cntxFromStorage == this
Context cntxFromStorage = MyStorage.getContext();
...
};
};
public class MyStorage
{
private static Context cntStorageContext = null;
public static Context getContext() {
return cntStorageContext;
}
public static void setContext(Context context) {
MyStorage.cntStorageContext = context;
}
};
class DataBaseHelper extends SQLiteOpenHelper {
// get MyActivity context
Context cnt = MyStorage.getContext();
}
First cteate big icon 512x512 px formtat .PGN in graphics editor as Photoshop, Gimp, Piant.NET and save image.
If you create new project via Eclipse and choice your 512x512 image for ic_launcher.
Eclipse will make all icons from this image for new application very well.
If you create new project via Eclipse and choice your 512x512 image for ic_launcher.
Eclipse will make all icons from this image for new application very well.
Basic shortcuts for Android Emulator.
More about Android Emulator
Emulated Device Key | Keyboard Key |
---|---|
Home | HOME |
Menu (left softkey) | F2 or Page-up button |
Star (right softkey) | Shift-F2 or Page Down |
Back | ESC |
Call/dial button | F3 |
Hangup/end call button | F4 |
Search | F5 |
Power button | F7 |
Audio volume up button | KEYPAD_PLUS, Ctrl-5 |
Audio volume down button | KEYPAD_MINUS, Ctrl-F6 |
Camera button | Ctrl-KEYPAD_5, Ctrl-F3 |
Switch to previous layout orientation (for example, portrait, landscape) | KEYPAD_7, Ctrl-F11 |
Switch to next layout orientation (for example, portrait, landscape) | KEYPAD_9, Ctrl-F12 |
Toggle cell networking on/off | F8 |
Toggle code profiling | F9 (only with -trace startup option) |
Toggle fullscreen mode | Alt-Enter |
Toggle trackball mode | F6 |
Enter trackball mode temporarily (while key is pressed) | Delete |
DPad left/up/right/down | KEYPAD_4/8/6/2 |
DPad center click | KEYPAD_5 |
Onion alpha increase/decrease | KEYPAD_MULTIPLY(*) / KEYPAD_DIVIDE(/) |
More about Android Emulator
- download any mobile styles for example //www.artodia.com/phpbb-styles/mobile/
- unzip style into your forum style folder for example all art_mobile folder copy into 0:/myweb/forum/styles/
- folow instalation istructions //www.artodia.com/phpbb-styles/mobile/tutorials/mobile-detection/
- check url result on https://www.google.com/webmasters/tools/mobile-friendly
- unzip style into your forum style folder for example all art_mobile folder copy into 0:/myweb/forum/styles/
- folow instalation istructions //www.artodia.com/phpbb-styles/mobile/tutorials/mobile-detection/
- check url result on https://www.google.com/webmasters/tools/mobile-friendly
Hide module - open dialog: File > Project Structure Ctrl + Alt + Shift + S
Hide module: in opened Dialog select module which will hidden and click on minus (left upper corner)
If module is hidden, you can permanetly delete module from disk. But if you want using module in future, copy module into other folder (not into AndroidProjects folder and his subbfolders) and delete module permanetly from project and disc. Right mouse click on module and select from menu Delete.
If you want import the backup copy to project, use: File>New>Import mudule
Hide module: in opened Dialog select module which will hidden and click on minus (left upper corner)
If module is hidden, you can permanetly delete module from disk. But if you want using module in future, copy module into other folder (not into AndroidProjects folder and his subbfolders) and delete module permanetly from project and disc. Right mouse click on module and select from menu Delete.
If you want import the backup copy to project, use: File>New>Import mudule
Editace: 2017-02-14 10:54:48
Počet článků v kategorii: 396
Url:arraylist-sublist-join-compare-loop-synchronize-hashmap-sort-tree