Recently, there are often news about another claim by Apple for standard interface standards. For example on this:

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This is a regular latch. The principle of its operation is used on the iPhone when unlocking the device:

Why did you need to unlock in this form? On conventional push-button handsets, a long button (2-3 seconds) was usually used to press a button. But in the case of a touch-screen this is unacceptable. he is more fragile and the owner of the tube eventually crushes the glass.
A similar solution (as natural and quite suitable) is applied in Android versions 1-2:

Among other claims, Apple tried to use this interface element, but so far unsuccessfully. In order to protect themselves from lawsuits, Google has reworked the unlock interface. Starting with the Honeycomb version (Android v3), the latch looks like this:

- as can be seen in the screenshot, you do not need to drag the slider, but simply pull the small circle out of the large one in any direction.
This is not like a bolt and Apple will not be able to sue. In addition, such a mechanism is more successful than a latch - the phone can be worn by turning it to the side, upside down, while the slider can be moved with a finger without thinking about the direction.
Perhaps, if Apple and its ships were not, the unlock interface in new versions of Android would remain the same.