Window as in windowsill.
An Android ImageView that can be panned around by tilting your device, as if you were looking
through a window.
Add it to your project using Gradle:
compile 'com.jmedeisis:windowview:0.2.0'Use in place of an ImageView. Example XML layout file:
<com.jmedeisis.windowview.WindowView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/my_image" />Please refer to the included sample application project for a complete example.
You will typically want to configure the following attributes for the WindowView class:
wwv_max_pitch - maximum angle (in degrees) from origin for vertical device tilts.
Default - 30°
wwv_max_roll - maximum angle (in degrees) from origin for horizontal device tilts.
Default - 30°
wwv_vertical_origin - (in degrees) when device pitch equals this value, the image is centered
vertically. Default - 0°
wwv_horizontal_origin - (in degrees) when device roll equals this value, the image is centered
horizontally. Default - 0°
You may also want to configure more advanced attributes:
wwv_orientation_mode - Absolute or Relative (default). Specifies whether device tilt should
be tracked with respect to Absolute world coordinates (i.e. pitch, roll w.r.t. ground plane) or
with respect to the device orientation when WindowView is created, which WindowView refers to as
the 'orientation origin'. If using the latter, i.e. Relative, you may use
WindowView#resetOrientationOrigin(boolean) to set the orientation origin to that of the device
when the method is called.
wwv_translate_mode - Constant or Proportional (default). Specifies how much the image is
translated in response to device tilt. If Proportional, the image moves within the full range
defined by max_pitch / max_roll, with the extremities of the image visible when device pitch /
roll is at those angles. If Constant, the image moves a constant amount per unit of tilt which is
defined by max_constant_translation, achieved when pitch / roll are at max_pitch / max_roll.
wwv_max_constant_translation - see above. Default - 150dp
wwv_sensor_sampling_period - the desired rate of sensor events. In microseconds or one of
fast, normal (default) or slow. If using microsecond values, higher values result in slower
sensor updates. Directly related to the rate at which WindowView updates in response to device
tilt.
wwv_tilt_sensor_mode - Manual or Automatic (default). Specifies whether WindowView is
responsible for when tilt motion tracking starts and stops. If Automatic, WindowView works out
of the box and requires no extra configuration. If Manual, you must explicitly start and stop tilt
motion tracking. You have two options:
Use WindowView#startTiltTracking() and WindowView#stopTiltTracking(), e.g. in your
Activity's onResume() and onPause(), respectively.
Use WindowView#attachTiltTracking(TiltSensor) and
WindowView#detachTiltTracking(TiltSensor). This approach is recommended when using multiple
WindowViews in a single logical layout. The externally managed TiltSensor should be started
and stopped using TiltSensor#startTracking(int) and TiltSensor#stopTracking() as appropriate.
Example configuration:
<com.jmedeisis.windowview.WindowView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/my_image"
app:wwv_tilt_sensor_mode="Manual"
app:wwv_orientation_mode="Relative"
app:wwv_translate_mode="Constant"
app:wwv_max_constant_translation="100dp"
app:wwv_sensor_sampling_period="fast"
app:wwv_max_pitch="15"
app:wwv_max_roll="15"
app:wwv_vertical_origin="0"
app:wwv_horizontal_origin="0" />Pull requests are welcome and encouraged for bugfixes and features such as:
WindowView is licensed under the terms of the MIT License.