Eclipse ADT plugin not recent graphical layout editor
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Click to Android version combobox - drop down menu and select your version, which just using (have instaled). For example: You updated ADT by SDK manager, but forget to update Android version. You can use lower version from drop down menu, which using your project, or do update of Android by SDK manager.
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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
Call requires API level 16 (current min is 4): android
Change The SDK version in AndroidManifest.xml to higher
Change The SDK version in AndroidManifest.xml to higher
<uses-sdk android:minSdkVersion="4" />
//
<uses-sdk android:minSdkVersion="8" />
Rotate a bitmap Android source code.
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) {
Paint paint = new Paint();
canvas.drawColor(Color.YELLOW);
// Bitmap b = Bitmap.createBitmap(200, 200, Bitmap.Config.ARGB_8888);
// you need to insert a image flower_blue into res/drawable folder
Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.flower_blue);
Matrix mat = new Matrix();
mat.postRotate(90);
Bitmap bmpRotate = Bitmap.createBitmap(bmp, 0, 0,
bmp.getWidth(), bmp.getHeight(),
mat, true);
int h = bmp.getHeight();
canvas.drawBitmap(bmp, 10,10, paint);
canvas.drawBitmap(bmpRotate, 10,10 + h + 10, paint);
}
}
}
Problem in Android application:
Solution: check code for set and get selection
E/AndroidRuntime(416): FATAL EXCEPTION: main
E/AndroidRuntime(416): java.lang.IndexOutOfBoundsException
E/AndroidRuntime(416): at java.util.Arrays$ArrayList.get(Arrays.java:75)
E/AndroidRuntime(416): at android.widget.ArrayAdapter.getItem(ArrayAdapter.java:298)
E/AndroidRuntime(416): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:351)
E/AndroidRuntime(416): at android.widget.ArrayAdapter.getView(ArrayAdapter.java:323)
E/AndroidRuntime(416): at android.widget.Spinner.makeAndAddView(Spinner.java:192)
E/AndroidRuntime(416): at android.widget.Spinner.layout(Spinner.java:151)
E/AndroidRuntime(416): at android.widget.Spinner.onLayout(Spinner.java:115)
Solution: check code for set and get selection
// Spinner _spin1 contain only 49 items
// you can set max 48 ( range 0 - 48)
// 50 is IndexOutOfBoundsException
_spin1.setSelection(50);
Context context = getApplicationContext();
String DB_PATH = "/data/data/"
+ context.getPackageName()
+ "/databases/";
Editace: 2015-10-23 20:37:35
Počet článků v kategorii: 397
Url:eclipse-adt-plugin-not-recent-graphical-layout-editor
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