What is the use of gravity in android?
android:gravity is used to specify how to place the content of the object within the object itself. In another word, android:gravity is used to specify the gravity of the content of the view. android:layout_gravity is an attribution the child can supply to its parent, to specify the gravity the view within its parents.
What is phone gravity?
Gravity Screen (Android) is a free app that relies on your phone’s accelerometers and other sensors to give you a motion-powered alternative to the power button. Put simply, if you put your phone down on a flat surface, Gravity Screen turns off the screen. Pick up the phone and the screen springs to life.
What is the difference between gravity and layout_gravity in android?
So in general android:layout_gravity attribute is used by child views to tell their parent how they want to be placed inside it, while android:gravity is used by the parent layout to tell the child views how they should be placed inside it.
What is android Layout_weight?
LinearLayout also supports assigning a weight to individual children with the android:layout_weight attribute. This attribute assigns an “importance” value to a view in terms of how much space it should occupy on the screen. A larger weight value allows it to expand to fill any remaining space in the parent view.
What is Wrap_content and Match_parent in android?
FILL_PARENT (renamed MATCH_PARENT in API Level 8 and higher), which means that the view wants to be as big as its parent (minus padding) WRAP_CONTENT, which means that the view wants to be just big enough to enclose its content (plus padding)
How does phone gravity sensor work?
A gravity sensor measures the direction and intensity of gravity. Using such data, you can check the relative direction of a device within a space. A linear accelerometer provides data on acceleration, excluding gravity.
How does gravity sensor work in mobile?
By combining accelerometer data with gyroscope data, the acceleration due to moving the device can be filtered out to leave the pure gravity signal. So yes, it will return the right value under motion. Thus, the Gravity sensor gives a much better signal for device orientation than just the accelerometer on its own.
Can I use my phone as a motion sensor?
Use Motion Detector Android App Motion Detector app is another free Android third-party application that offers motion detection with the help of your phone’s camera. This is a simple app that shows the number of times motion is detected through your camera and also takes photos of the motion to save it on your device.
What is 0dp android?
Equal distribution. To create a linear layout in which each child uses the same amount of space on the screen, set the android:layout_height of each view to “0dp” (for a vertical layout) or the android:layout_width of each view to “0dp” (for a horizontal layout).
What is weightSum?
Answer: Per documentation, android:weightSum defines the maximum weight sum, and is calculated as the sum of the layout_weight of all the children if not specified explicitly. Let’s consider an example with a LinearLayout with horizontal orientation and 3 ImageViews inside it.
What is TextView and EditText in Android?
TextView is the widget used when you want the user to View the Text (such as a label, etc) and EditText used when you want the user to be able to edit the text. The text in either widget can be set programmatically or via xml using the android:text parameter.
What is EMS in Android?
ems is a unit of measurement. The name em was originally a reference to the width of the capital M. It sets the width of a TextView/EditText to fit a text of n ‘M’ letters regardless of the actual text extension and text size. Eg : android:ems Makes the EditText be exactly this many ems wide.
What is a gravity sensor in Android?
How does your phone know which way is down?
A number of electronic devices these days (including smartphones, tablets and even laptops) have a sense of gravity designed into it and can therefore tell up from down, thanks to a device called an accelerometer.
What are sensors in Android?
What are Android sensors? Android sensors are virtual devices that provide data coming from a set of physical sensors: accelerometers, gyroscopes, magnetometers, barometer, humidity, pressure, light, proximity and heart rate sensors.
What is the use of gravity in Android?
Android Gravity is an attribute, used for child elements of the view and arranges the content inside the view. It controls gravity of all child views of a container. Gravity in Android places an object within a larger container.
What is the Samsung Gravity smart sgh-t589?
Register today The Samsung Gravity Smart SGH-T589 is an Android smartphone featuring a slide-out QWERTY keyboard, 3 megapixel camera, 3G data, GPS, multi-format music player, and Bluetooth compatibility. Other key features include group and cloud texting, microSD memory card slot, Wi-Fi mobile hotspot, and DLNA wireless media streaming.
What is layout_gravity in Android?
The android:layout_gravity is used to control the gravity of an individual view in a container. It is the outside gravity of the View. It specifies the direction in which the View should touch it’s parent’s border. In the above example, android:layout_gravity aligns the child of LinearLayout in center.
How do you Center an object in Android gravity?
With android:gravity, use the following constant values: bottom: Pushes the object to the bottom of its container. center: Pushes the object to the center of its container; both horizontal; and vertical axis. center_horizontal: Pushes the object in the horizontal center of its container.