Dec 2017


how to select the “group of item” and “volume setting” on your smartphone

Unique to your phone’s touchscreen is the manner in which a group of items is selected. On a computer, you drag the mouse over the items. On a phone’s touch-screen, you perform these steps:


1)Long-press the first item, such as a photo thumbnail in an album.

The item is selected, and it appears highlighted on the screen or grows a tiny check mark. Also, an action bar appears atop the screen, similar to the one shown in Figure 1. It lists icons such as Share and Delete, which manipulate the group of selected items

2)Tap additional items to select them.

As long as the action bar appears, you tap to keep adding items to the mix. The action bar lists the total number of selected items, as illustrated in Figure 1

3)Do something with the group.

Choose an icon from the action bar.

To cancel the selection, tap the Cancel (X) icon on the action bar, which deselects all items.

Setting the volume :

The Volume key is located on the side of the phone. Press the top part of the key to raise the volume. Press the bottom part to lower the volume.


As you press the volume key, a card appears on the touchscreen to illustrate the relative volume level, as shown in Figure 2


Not every volume card looks like the one shown in Figure 3-2, though they all feature a slider control. Additional controls let you set specific volumes; tap an icon on the card to view details. If the settings icon appears on the card, use it to make more specific adjustments.


  • The volume key controls whatever noise the phone is making when you use it: When you’re on a call, the volume controls set the call level. When you’re listening to music or watching a video, the volume controls adjust those sounds.


  • You can set the volume when the phone is locked. That means you don’t need to unlock the phone to adjust the volume while you’re listening to music.


Silence your phone :

How many times have you heard the admonition “Please silence your cell phones”? The quick way to obey this command with your Android phone is to unlock k the phone and keep pressing the bottom part off the Volume key until the phone vibrates. You’re good to go.


  • Some phones feature a mute action on the phone options card: Press and hold the Power/Lock key and then choose Mute or vibrate.


  • You might also find a Sound quick setting. Tap that icon to mute or vibrate the phone. See the later section “Accessing quick settings” for details.


  • When the phone is silenced or in Vibration mode, and appropriate status icon appears on the status bar. The stock Android status icon is shown in the margin.


  • You make the phone noisy again by reversing the directions in this section. Most commonly, press the “louder” end of the volume key to restore the phone’s sound.



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