popupwindow与软键盘的问题

1.软键盘弹出时不会改变布局（覆盖页面的效果）

android:windowSoftInputMode="adjustPan"

2、软键盘弹出时不会覆盖popuwindow
setSoftInputMode(PopupWindow.INPUT_METHOD_NEEDED);
setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);

3.popuwindow显示在页面底部，弹出时被软键盘顶
myInput.showAtLocation(findViewById(android.R.id.content),Gravity.BOTTOM,0,0);

4.源码
　4.1popupwindow的布局（自定义）
　public class MyInput extends PopupWindow {    
　　private Context context;    private View view;
　　　public MyInput(Context context){
        this.context=context;
        init();
　　　}public void init(){

　　　LayoutInflater inflater=LayoutInflater.from(context);
        view =inflater.inflate(R.layout.myinput,null);
        this.setWidth(getScreenSize()[0]);
        this.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
        setBackgroundDrawable(new ColorDrawable(0x00000000));
        setOutsideTouchable(true);
        setFocusable(true);
        setSoftInputMode(PopupWindow.INPUT_METHOD_NEEDED);
        setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
        setContentView(view);
    }
    @Override
    public void showAsDropDown(View anchor) {
        // TODO Auto-generated method stub
        super.showAsDropDown(anchor);
        showPopuWindow();
    }
    @Override
    public void showAsDropDown(View anchor, int xoff, int yoff) {
        // TODO Auto-generated method stub
        super.showAsDropDown(anchor, xoff, yoff);
        showPopuWindow();
    }
    @Override
    public void showAsDropDown(View anchor, int xoff, int yoff, int gravity) {
        // TODO Auto-generated method stub
        super.showAsDropDown(anchor, xoff, yoff, gravity);
        showPopuWindow();
    }
    @Override
    public void showAtLocation(View parent, int gravity, int x, int y) {
        // TODO Auto-generated method stub
        super.showAtLocation(parent, gravity, x, y);
        showPopuWindow();
    }
    private void showPopuWindow(){
        setWindowBackgroundAlpha(0.8f);
        if (mShowingListener!=null) {
            mShowingListener.onShowing();
        }
    }
    @Override
    public void setOnDismissListener(OnDismissListener onDismissListener) {
        setWindowBackgroundAlpha(1f);
        super.setOnDismissListener(onDismissListener);
    }
    /**
     * 控制窗口背景的不透明度 *
     */
    private void setWindowBackgroundAlpha(float alpha) {
        Window window = ((Activity) context).getWindow();
        WindowManager.LayoutParams layoutParams = window.getAttributes();
        layoutParams.alpha = alpha;
        window.setAttributes(layoutParams);
    }
    public interface ShowingListener {
        public void onShowing();
    }
    private MyInput.ShowingListener mShowingListener;
    public void setShowingListener(MyInput.ShowingListener showingListener) {
        this.mShowingListener = showingListener;
    }
    /*
     * 获取屏幕的宽高
     */
    public int[] getScreenSize(){
        int[] size=new int[2];
        DisplayMetrics dm=new DisplayMetrics();
        WindowManager wm=(WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
        wm.getDefaultDisplay().getMetrics(dm);
        size[0]=dm.widthPixels;
        size[1]=dm.heightPixels;
        return size;
    }
}

　　　　

4.2activity里面的动态写popupwindow
shipin_pinglun.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//dibu.setVisibility(dibu.GONE);

        if (myInput==null){
            myInput=new MyInput(SurfaceViewActivity.this);

            myInput.setShowingListener(new MyInput.ShowingListener() {
                @Override
                public void onShowing() {
                }
            });
            myInput.setOnDismissListener(new PopupWindow.OnDismissListener() {
                @Override
                public void onDismiss() {
                    WindowManager.LayoutParams lp=getWindow().getAttributes();
                    lp.alpha = 1f;
                    getWindow().setAttributes(lp);
                    dibu.setVisibility(dibu.VISIBLE);
                }
            });
        }
        myInput.showAtLocation(findViewById(android.R.id.content),Gravity.BOTTOM,0,0);
    }
});