自定义的PopupWindow

            Activity 
                mPopwindow = new CameraPopwindow(getActivity(), itemsOnClick);
                mPopwindow.setFocusable(true); // 获取焦点
                mPopwindow.setOutsideTouchable(true);
                mPopwindow.showAtLocation(view, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 0, 0);

           //  重写[Pop] 
 public class CameraPopwindow extends PopupWindow {
     private View mView;

public CameraPopwindow(Activity context, View.OnClickListener itemsOnClick) {
    super(context);
    initView(context, itemsOnClick);
}

private void initView(final Activity context, View.OnClickListener itemsOnClick) {
    LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    mView = mInflater.inflate(R.layout.camerapopwendow, null);


    TextView camera= (TextView) mView.findViewById(R.id.Personal_fragment_camera);

    TextView album= (TextView) mView.findViewById(R.id.Personal_fragment_album);

    TextView personal_dimess= (TextView) mView.findViewById(R.id.Personal_fragment_dimess);
    personal_dimess.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //销毁弹出框
            dismiss();
            backgroundAlpha(context, 1f);
        }
    });
    camera.setOnClickListener(itemsOnClick);
    album.setOnClickListener(itemsOnClick);

    //设置SelectPicPopupWindow的View
    this.setContentView(mView);
    //设置SelectPicPopupWindow弹出窗体的宽
    this.setWidth(WindowManager.LayoutParams.FILL_PARENT);
    //设置SelectPicPopupWindow弹出窗体的高
    this.setHeight(WindowManager.LayoutParams.WRAP_CONTENT);
    //设置SelectPicPopupWindow弹出窗体可点击
    this.setFocusable(true);
    //设置PopupWindow可触摸
    this.setTouchable(true);
    //设置非PopupWindow区域是否可触摸


    ColorDrawable dw = new ColorDrawable(0x00000000);
    //设置SelectPicPopupWindow弹出窗体的背景
    this.setBackgroundDrawable(dw);
    backgroundAlpha(context, 0.5f);//0.0-1.0
    this.setOnDismissListener(new OnDismissListener() {

        @Override
        public void onDismiss() {
            // TODO Auto-generated method stub
            backgroundAlpha(context, 1f);
        }
    });
}

/**
 * 设置添加屏幕的背景透明度
 *
 * @param bgAlpha
 */
public void backgroundAlpha(Activity context, float bgAlpha) {
    WindowManager.LayoutParams lp = context.getWindow().getAttributes();
    lp.alpha = bgAlpha;
    context.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
    context.getWindow().setAttributes(lp);
}

}

  //不要忘记最后写上~~~~~

//Dialog窗体泄露解决
@Override
public void onDestroy() {
    super.onDestroy();
    if (dialog != null && dialog.isShowing()) {

        dialog.dismiss();
        dialog = null;
    }
}






  // CameraPopwindow LinearLayout XML

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout
    android:background="@drawable/youmeng_btnimg"
    android:layout_marginBottom="@dimen/default_50dp"
    android:layout_alignParentBottom="true"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView
        android:layout_marginTop="@dimen/default_10sp"
        android:id="@+id/Personal_fragment_camera"
        android:gravity="center"
        android:text="相机"
        android:layout_width="match_parent"
        android:layout_height="@dimen/default_30dp" />

    <TextView
        android:id="@+id/Personal_fragment_album"
        android:gravity="center"
        android:text="相册"
        android:layout_width="match_parent"
        android:layout_height="@dimen/default_30dp" />

    <TextView
        android:id="@+id/Personal_fragment_dimess"
        android:gravity="center"
        android:text="关闭"
        android:layout_width="match_parent"
        android:layout_height="@dimen/default_30dp" />
</LinearLayout>