利用建造者模式封装一个简单好用的dialog

本着不再重复造轮子的精神，封装一个简单实用的Dialog,
1，支持自定义布局
2，支持设置显示位置以及与屏幕边距
3，随心所欲的添加动画效果
4，添加子View接口回调，可以为所有子View添加点击事件
5，链式调用，一行实现添加所有属性以及回调

代码如下：

public class DialogUtils {

    private Context mContext;

    private int layoutId;

    private int layoutPosition;

    private int padingTop;
    private int padingBottom;
    private int padingRight;
    private int padingLeft;


    /**
     * 静态内部类的方式构建单例模式
     */

    private DialogUtils(){}

    private static class DialogHolder{

        private static DialogUtils instance= new DialogUtils();

    }

    public static DialogUtils getInstance(){

        return DialogHolder.instance;
    }

    /**
     * 传入上下文
     * @param context
     * @return
     */

    public final DialogUtils with(Context context){
        this.mContext= context;
        return this;

    }

    /**
     * 传入弹窗需要的布局
     * @param layoutId
     * @return
     */

    public final DialogUtils setlayoutId(int layoutId){
        this.layoutId= layoutId;
        return this;

    }

    /**
     * 设置弹窗的位置
     * @param layoutPosition
     * @return
     */

    public final DialogUtils setlayoutPosition(int layoutPosition){
        this.layoutPosition= layoutPosition;
        return this;

    }


    /**
     * 设置弹窗距离屏幕的距离
     * @param padingLeft
     * @param padingTop
     * @param padingRight
     * @param padingBottom
     * @return
     */
    public final DialogUtils setlayoutPading(int padingLeft,int padingTop,int padingRight,int padingBottom){
        this.padingLeft= padingLeft;
        this.padingTop= padingTop;
        this.padingRight= padingRight;
        this.padingBottom= padingBottom;
        return this;

    }

    public void show(){

        Dialog dialog = new Dialog(mContext, R.style.ActionSheetDialogStyle);
        View view = LayoutInflater.from(mContext).inflate(layoutId, null);
        dialog.setContentView(view);

        //获得dialog的window窗口
        Window window = dialog.getWindow();
        //设置dialog在屏幕位置
        window.setGravity(layoutPosition);


        window.getDecorView().setPadding(padingLeft, padingTop, padingRight, padingBottom);
        //获得window窗口的属性
        android.view.WindowManager.LayoutParams lp = window.getAttributes();
        //设置窗口宽度为充满全屏
        lp.width = WindowManager.LayoutParams.MATCH_PARENT;
        //设置窗口高度为包裹内容
        lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
        //将设置好的属性set回去
        window.setAttributes(lp);
        dialog.show();

    }

添加回调接口：

public interface ViewInterface {
        void getChildView(View view, int layoutResId);
    }

    /**
     * 设置子View
     *
     * @param listener ViewInterface
     * @return Builder
     */
    public DialogUtils setOnChildViewclickListener(DialogUtils.ViewInterface listener) {
        this.listener = listener;
        return this;
    }

设置弹窗消失：

public static void dismiss(){

        if (dialog!=null && dialog.isShowing()){
            dialog.dismiss();
        }
    }

加入自定义动画：

 switch (dialogAnimaType){
            case 0:
                //自下而上动画
                dialog = new Dialog(mContext, R.style.ActionSheetDialogStyle);
                break;
            case 1:
                //淡入淡出缩放动画
                dialog = new Dialog(mContext, R.style.ActionSheetDialogStyle1);
                break;
        }

然后调用：

DialogUtils.getInstance()
                        .with(getApplicationContext())//上下文
                        .setlayoutId(R.layout.make_money_pop_window_layout)//布局文件
                        .setlayoutPosition(Gravity.BOTTOM)//位置
                        .setlayoutAnimaType(0)//动画类型:0自下而上动画，1淡入淡出动画
                        .setlayoutPading(20, 0, 20, 20)//与屏幕距离
                        .setOnChildViewclickListener(new DialogUtils.ViewInterface() {
                            @Override
                            public void getChildView(View view, int layoutResId) {
                                //处理dialog内部控件的点击事件
                                LinearLayout weichat_share_ll= view.findViewById(R.id.weichat_share_ll);
                                weichat_share_ll.setOnClickListener(new View.OnClickListener() {
                                    @Override
                                    public void onClick(View view) {
                                        Toast.makeText(MainActivity.this,"微信",Toast.LENGTH_SHORT).show();
                                    }
                                });
                                TextView disMissTv= view.findViewById(R.id.share_dismiss_tv);
                                disMissTv.setOnClickListener(new View.OnClickListener() {
                                    @Override
                                    public void onClick(View view) {
                                        DialogUtils.dismiss();
                                    }
                                });
                            }
                        })
                        .show();

附上两张效果图：

523964774539518641.png

551425696019632053.png

Demo地址：点这里

最后编辑于：2018.06.23 15:22:17