一个自定义的DialogBuilder

项目暂时告一段落，记录一下，一个自定义的dialogBuilder，省去很多重复代码

自定义DialogBuilder

/**
 * Author：roc
 * Date： 2018/8/3 下午4:20
 * Desc: 自定义dialogBuilder类
 */
public abstract class BaseDialogBuilder {

    Context mContext;

    public BaseDialogBuilder(Context mContext) {
        this.mContext = mContext;
    }


    public Dialog create() {
        LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        final Dialog dialog = new Dialog(mContext, R.style.custom_dialog);

        View layout = inflater.inflate(getLayoutId(), null);
        dialog.addContentView(layout, new WindowManager.LayoutParams(android.view.ViewGroup.LayoutParams.WRAP_CONTENT
                , android.view.ViewGroup.LayoutParams.WRAP_CONTENT));
        dialog.setContentView(layout);
        // 点击外部区域是否消失
        dialog.setCanceledOnTouchOutside(setCanceledOnTouchOutside());

        //获得dialog的window窗口
        Window window = dialog.getWindow();
        //设置Dialog底背景暗淡
        window.addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
        //设置dialog在屏幕底部
        window.setGravity(setGravity());
        //设置dialog弹出时的动画效果，淡入淡出效果
        window.setWindowAnimations(R.style.appearStyle);
        window.getDecorView().setPadding(0, 0, 0, 0);

        //获得window窗口的属性
        WindowManager.LayoutParams lp = window.getAttributes();
        //设置dialog自身黑暗度
        lp.dimAmount = 0.5f;
        //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);

        initView(layout);

        setData(dialog);

        return dialog;
    }


    /**
     * 布局
     *
     * @return
     */
    abstract int getLayoutId();

    /**
     * 初始化View
     *
     * @param view
     */
    abstract void initView(View view);

    /**
     * 设置数据
     *
     * @param dialog
     */
    abstract void setData(Dialog dialog);

    /**
     * 显示方式
     * Gravity.BOTTOM
     * Gravity.TOP
     * Gravity.CENTER
     *
     * @return
     */
    abstract int setGravity();

    /**
     * 点击外部区域是否消失
     *
     * @return
     */
    abstract boolean setCanceledOnTouchOutside();
}

style文件

<!-- 自定义dialog的style样式 -->
    <style name="custom_dialog" parent="android:style/Theme.Dialog">
        <item name="android:background">#00000000</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">true</item>
    </style>

 <!-- 弹出框动画 淡入淡出 -->
    <style name="appearStyle" parent="@android:style/Animation.Dialog">
        <!-- 进入时的动画 -->
        <item name="android:windowEnterAnimation">@anim/dialog_appear</item>
        <!-- 退出时的动画 -->
        <item name="android:windowExitAnimation">@anim/dialog_disappear</item>
    </style>

dialog_appear和dialog_disappear是两个淡入淡出的动画文件

使用方式

public class CustomeDialog {

    public interface OnLeftClickLisntener {
        void onLeftClick();
    }

    public interface OnRightClickListener {
        void onRightClick();
    }

    public static class Builder extends BaseDialogBuilder {

        ImageView leftBtn, rightBtn;
        OnLeftClickLisntener onLeftClickLisntener;
        OnRightClickListener onRightClickListener;

        public Builder setOnLeftClickLisntener(OnLeftClickLisntener onLeftClickLisntener) {
            this.onLeftClickLisntener = onLeftClickLisntener;
            return this;
        }

        public Builder setOnRightClickLisntener(OnRightClickListener onRightClickListener) {
            this.onRightClickListener = onRightClickListener;
            return this;
        }

        public Builder(Context mContext) {
            super(mContext);
        }

        @Override
        int getLayoutId() {
            return R.layout.dialog_layout;
        }

        @Override
        void initView(View view) {
            leftBtn = view.findViewById(R.id.prevMonth);
            rightBtn = view.findViewById(R.id.nextMonth);
        }

        @Override
        void setData(Dialog dialog) {

            currentMonth.setText(titlDate);

            leftBtn.setOnClickListener(v -> {
                if (onLeftClickLisntener != null) {
                    onLeftClickLisntener.onLeftClick();
                }
            });

            rightBtn.setOnClickListener(v -> {
                if (onRightClickListener != null) {
                    onRightClickListener.onRightClick();
                }
            });
        }

        @Override
        int setGravity() {
            return Gravity.BOTTOM;
        }

        @Override
        boolean setCanceledOnTouchOutside() {
            return true;
        }
}