接口回调实现popwindow展示

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常用的popwindow类，通过接口调用，下面是工具类的部分

public class AddPictureWindow implements OnClickListener {    private PopupWindow mPop;// 窗口    private Context mContext;// 上下文    private TextView tvPhoto, tvAlbum, tvCancel;// 拍照,相册, 取消    public AddPictureWindow(Context mContext) {        this.mContext = mContext;        initView();    }    /**     * 初始化组件     */    private void initView() {        View view = LayoutInflater.from(mContext).inflate(R.layout.view_add_picture, null);        mPop = new PopupWindow(view, LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);        tvPhoto = (TextView) view.findViewById(R.id.tv_add_picture_photograph);        tvAlbum = (TextView) view.findViewById(R.id.tv_add_picture_album);        tvCancel = (TextView) view.findViewById(R.id.tv_add_picture_cancel);        //        ColorDrawable colorDrawable = new ColorDrawable(-0000);        mPop.setBackgroundDrawable(colorDrawable);        mPop.setOutsideTouchable(true);        mPop.setFocusable(true);        mPop.setAnimationStyle(R.style.addPicturePopupWindowAnimation);        //        tvPhoto.setOnClickListener(this);        tvAlbum.setOnClickListener(this);        tvCancel.setOnClickListener(this);    }    /**     * 按键监听     */    @Override    public void onClick(View v) {        switch (v.getId()) {        case R.id.tv_add_picture_photograph:// 照相            if (pictureClick != null) {                pictureClick.onPictureClick(v, 0);            }            dismissWindow();            break;        case R.id.tv_add_picture_album:// 相册            if (pictureClick != null) {                pictureClick.onPictureClick(v, 1);            }            dismissWindow();            break;        case R.id.tv_add_picture_cancel:// 取消            dismissWindow();            break;        }    }    /**     * 确定按键监听     *      * @param l     */    public void setOnPictureClickListener(OnPictureClickListener d) {        this.pictureClick = d;    }    // 接口引用    OnPictureClickListener pictureClick;    /**     * 确定按键回调接口     *      * @author ZhangXuanChen     * @created 2013-7-21     */    public interface OnPictureClickListener {        void onPictureClick(View v, int what);    }    /**     * 显示窗口     */    public void showWindow(View v) {        if (mPop != null) {            if (mPop.isShowing()) {                mPop.dismiss();            } else {                mPop.showAtLocation(v, Gravity.BOTTOM, 0, 0);            }        }    }    /**     * 关闭窗口     */    public void dismissWindow() {        if (mPop != null) {            if (mPop.isShowing()) {                mPop.dismiss();            }        }    }}

代码中通过工具类对外提供的接口调用，通过继承接口实现onPictureClick方法，代码如下

public void onPictureClick(View v, int what) {    switch (what) {        case 0:// 拍照            Intent picture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);            picture.putExtra(MediaStore.EXTRA_OUTPUT, mImageUri);            startActivityForResult(picture, ClientConstant.REQUEST_CODE_TAKE_PHOTO);            break;        case 1:// 相册            Intent album = new Intent(Intent.ACTION_PICK, null);            album.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");            startActivityForResult(album, ClientConstant.REQUEST_CODE_PHOTO_ALBUM);            break;        }    }

对popwindow的声明、设置监听也是必不可少的部分

AddPictureWindow mAddPictureWindow;// 添加拍照windowmAddPictureWindow = new AddPictureWindow(this);初始化popwindow/** * popwindow按键监听 */mAddPictureWindow.setOnPictureClickListener(this);

通过点击事件触发弹出popwindow

    /**     * 按键监听     */    @Override    public void onClick(View v) {        switch (v.getId()) {        case R.id.iv_dialogue_addPicture:// 选择图片            if (mAddPictureWindow != null) {                mAddPictureWindow.showWindow(v);            }            break;        }    }

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