Region

Create an empty region

Return a copy of the specified region

Return a region set to the specified rectangle

Return a region set to the specified rectangle

Return true if the region contains the specified point

Describe the kinds of special objects contained in this Parcelable's marshalled representation.

Compares this instance with the specified object and indicates if they are equal. In order to be equal, o must represent the same object as this instance using a class-specific comparison. The general contract is that this comparison should be reflexive, symmetric, and transitive. Also, no object reference other than null is equal to null.

The default implementation returns true only if this == o . See Writing a correct equals method if you intend implementing your own equals method.

The general contract for the equals and hashCode() methods is that if equals returns true for any two objects, then hashCode() must return the same value for these objects. This means that subclasses of Object usually override either both methods or neither of them.

Return the boundary of the region as a new Path. If the region is empty, the path will also be empty.

Set the path to the boundary of the region. If the region is empty, the path will also be empty.

Set the Rect to the bounds of the region. If the region is empty, the Rect will be set to [0, 0, 0, 0]

Return a new Rect set to the bounds of the region. If the region is empty, the Rect will be set to [0, 0, 0, 0]

Return true if the region contains more than one rectangle

Return true if this region is empty

Return true if the region contains a single rectangle

Perform the specified Op on this region and the specified rect. Return true if the result of the op is not empty.

Perform the specified Op on this region and the specified rect. Return true if the result of the op is not empty.

Perform the specified Op on this region and the specified region. Return true if the result of the op is not empty.

Set this region to the result of performing the Op on the specified rect and region. Return true if the result is not empty.

Set this region to the result of performing the Op on the specified regions. Return true if the result is not empty.

Return true if the region is a single rectangle (not complex) and it contains the specified rectangle. Returning false is not a guarantee that the rectangle is not contained by this region, but return true is a guarantee that the rectangle is contained by this region.

Return true if the region is a single rectangle (not complex) and it contains the specified rectangle. Returning false is not a guarantee that the rectangle is not contained by this region, but return true is a guarantee that the rectangle is contained by this region.

Return true if the region is empty, or if the specified rectangle does not intersect the region. Returning false is not a guarantee that they intersect, but returning true is a guarantee that they do not.

Return true if the region is empty, or if the specified region does not intersect the region. Returning false is not a guarantee that they intersect, but returning true is a guarantee that they do not.

Return true if the region is empty, or if the specified rectangle does not intersect the region. Returning false is not a guarantee that they intersect, but returning true is a guarantee that they do not.

Set the region to the specified rectangle

Set the region to the specified rectangle

Set the region to the specified region.

Set the region to the empty region

Set the region to the area described by the path and clip. Return true if the resulting region is non-empty. This produces a region that is identical to the pixels that would be drawn by the path (with no antialiasing).

Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:

          getClass().getName() + '@' + Integer.toHexString(hashCode())
         

See Writing a useful toString method if you intend implementing your own toString method.

Set the dst region to the result of translating this region by [dx, dy]. If this region is empty, then dst will be set to empty.

Translate the region by [dx, dy]. If the region is empty, do nothing.

Write the region and its pixels to the parcel. The region can be rebuilt from the parcel by calling CREATOR.createFromParcel().

Invoked when the garbage collector has detected that this instance is no longer reachable. The default implementation does nothing, but this method can be overridden to free resources.

Note that objects that override finalize are significantly more expensive than objects that don't. Finalizers may be run a long time after the object is no longer reachable, depending on memory pressure, so it's a bad idea to rely on them for cleanup. Note also that finalizers are run on a single VM-wide finalizer thread, so doing blocking work in a finalizer is a bad idea. A finalizer is usually only necessary for a class that has a native peer and needs to call a native method to destroy that peer. Even then, it's better to provide an explicit close method (and implement Closeable ), and insist that callers manually dispose of instances. This works well for something like files, but less well for something like a BigInteger where typical calling code would have to deal with lots of temporaries. Unfortunately, code that creates lots of temporaries is the worst kind of code from the point of view of the single finalizer thread.

If you must use finalizers, consider at least providing your own ReferenceQueue and having your own thread process that queue.

Unlike constructors, finalizers are not automatically chained. You are responsible for calling super.finalize() yourself.

Uncaught exceptions thrown by finalizers are ignored and do not terminate the finalizer thread. See Effective Java Item 7, "Avoid finalizers" for more.