![]() ![]() ![]() ![]() Public void updateViewLayout(View view, ViewGroup. Public void addView(View view, ViewGroup.LayoutParams params) WindowManageraddView (View view, ViewGroup.LayoutParams params),removeView (View view),removeViewImmediate (View view)WindowManager. ![]() If we chain a series of add and remove operations together in rapid succession, the overlay window appears to remain displayed, with a nearly imperceptible icker. If it’s smaller than 10 (just a value I picked, experiment a bit to find the value that suites you best) we consider it a tap or click event. WindowManager.addView() and before it has been removed via WindowManager.removeView()), we can avoid trigger-ing the notication by removing the window quickly after it is drawn. This example demonstrates how to Add and Remove Views in Android Dynamically. To prevent this we calculate the X and Y offset, the distance travelled between the down and the up event. ViewManager接口中只定义了三个接口方法,用来 添加、 删除、 更新View。 /** Interface to let you add and remove child views to an Activity. To get an instance The problem with using the up event to detect a ‘click’ is that the event will also trigger after a move, which we don’t want. Please specify proper -jvm-target option. however, I am having difficulty with the Clickable Listener and Touchable Listener. Cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target 1.6. I managed to create the following class which enabled me to create an overlay window view similar to fbs chat head. WindowManager也是接口,继承自 ViewManager接口,它的实现类是 WindowManagerImpl。都在 android.view包中。 I am trying to learn how to create an overlay window similar to Facebook chat head messenger icon in Android. ![]()
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