关于 edittext 软键盘退出监听解决办法

edittext 有个onCreateInputConnection 的方法，通过它可以自定义一个输入法连接器，那里连接器里面有个方法（finishComposingText）能监听输入完成的动作.

public class MyEditText extends EditText{  
 
        public MyEditText(Context context) {
                super(context);
        }
        private OnFinishComposingListener mFinishComposingListener;  
 
        public void setOnFinishComposingListener(OnFinishComposingListener listener){
                this.mFinishComposingListener =listener;
        }
        @Override
        public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
                return new MyInputConnection(super.onCreateInputConnection(outAttrs), false);
        }
        public class MyInputConnection extends InputConnectionWrapper {
                public MyInputConnection(InputConnection target, boolean mutable) {
                        super(target, mutable);
                }
                @Override
               public boolean finishComposingText() {
                        boolean finishComposing = super.finishComposingText();
                        if(mFinishComposingListener != null){
                                mFinishComposingListener.finishComposing();
                        }
                        return finishComposing;
                }
        }
        public interface OnFinishComposingListener{
                public void finishComposing();
        }
}