直接上代碼

public class CustomDialog {

    private Context mContext;
    protected Dialog dialog;
    private LinearLayout mBackgroundLayout;
    private LinearLayout mMainLayout;
    private TextView mTitleTv;
    private Button mCancelButton;
    private Button mSureButton;
    private ImageView mLineImg;
    private Display mDisplay;

    /**
     * 是否顯示title
     */
    private boolean showTitle = false;
    /***
     * 是否顯示確定按鈕
     */
    private boolean showPosBtn = false;

    /**
     * 是否顯示取消按鈕
     */
    private boolean showNegBtn = false;

    /**
     * dialog  寬度
     */
    private float dialogWidth = 0.7f;


    public MUIKitDialog(Context context) {
        this.mContext = context;
        WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        mDisplay = windowManager.getDefaultDisplay();
    }

    public MUIKitDialog builder() {
        View view = LayoutInflater.from(mContext).inflate(R.layout.view_dialog, null);
        mBackgroundLayout = (LinearLayout) view.findViewById(R.id.ll_background);
        mMainLayout = (LinearLayout) view.findViewById(R.id.ll_alert);
        mMainLayout.setVerticalGravity(View.GONE);
        mTitleTv = (TextView) view.findViewById(R.id.tv_title);
        mTitleTv.setVisibility(View.GONE);
        mCancelButton = (Button) view.findViewById(R.id.btn_neg);
        mCancelButton.setVisibility(View.GONE);
        mSureButton = (Button) view.findViewById(R.id.btn_pos);
        mSureButton.setVisibility(View.GONE);
        mLineImg = (ImageView) view.findViewById(R.id.img_line);
        mLineImg.setVisibility(View.GONE);

        dialog = new Dialog(mContext, R.style.TUIKit_AlertDialogStyle);
        dialog.setContentView(view);

        mBackgroundLayout.setLayoutParams(new FrameLayout.LayoutParams((int) (mDisplay.getWidth() * dialogWidth), LayoutParams.WRAP_CONTENT));
        return this;
    }


    public MUIKitDialog setTitle(@NonNull String title) {
        showTitle = true;
        mTitleTv.setText(title);
        return this;
    }

    /***
     * 是否點(diǎn)擊返回能夠取消
     * @param cancel
     * @return
     */
    public MUIKitDialog setCancelable(boolean cancel) {
        dialog.setCancelable(cancel);
        return this;
    }

    /**
     * 設(shè)置是否可以取消
     *
     * @param isCancelOutside
     * @return
     */
    public MUIKitDialog setCancelOutside(boolean isCancelOutside) {
        dialog.setCanceledOnTouchOutside(isCancelOutside);
        return this;
    }

    /**
     * 設(shè)置確定
     *
     * @param text
     * @param listener
     * @return
     */
    public MUIKitDialog setPositiveButton(String text,
                                          final OnClickListener listener) {
        showPosBtn = true;
        mSureButton.setText(text);
        mSureButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                listener.onClick(v);
                dialog.dismiss();
            }
        });
        return this;
    }

    public MUIKitDialog setPositiveButton(final OnClickListener listener) {
        setPositiveButton("確定", listener);
        return this;
    }

    /***
     * 設(shè)置取消
     * @param text
     * @param listener
     * @return
     */
    public MUIKitDialog setNegativeButton(String text,
                                          final OnClickListener listener) {
        showNegBtn = true;
        mCancelButton.setText(text);
        mCancelButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                listener.onClick(v);
                dialog.dismiss();
            }
        });
        return this;
    }

    public MUIKitDialog setNegativeButton(
            final OnClickListener listener) {
        setNegativeButton("取消", listener);
        return this;
    }


    private void setLayout() {
        if (!showTitle) {
            mTitleTv.setVisibility(View.GONE);
        }

        if (showTitle) {
            mTitleTv.setVisibility(View.VISIBLE);
        }

        if (!showPosBtn && !showNegBtn) {
            mSureButton.setVisibility(View.GONE);
            mSureButton.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    dialog.dismiss();
                }
            });
        }

        if (showPosBtn && showNegBtn) {
            mSureButton.setVisibility(View.VISIBLE);
            mCancelButton.setVisibility(View.VISIBLE);
            mLineImg.setVisibility(View.VISIBLE);
        }

        if (showPosBtn && !showNegBtn) {
            mSureButton.setVisibility(View.VISIBLE);
        }

        if (!showPosBtn && showNegBtn) {
            mCancelButton.setVisibility(View.VISIBLE);
        }
    }

    public void show() {
        setLayout();
        dialog.show();
    }

    public void dismiss() {
        dialog.dismiss();
    }


    /**
     * 設(shè)置dialog  寬度
     *
     * @param dialogWidth
     * @return
     */
    public MUIKitDialog setDialogWidth(float dialogWidth) {
        if (mBackgroundLayout != null) {
            mBackgroundLayout.setLayoutParams(new FrameLayout.LayoutParams((int) (mDisplay.getWidth() * dialogWidth), LayoutParams.WRAP_CONTENT));
        }
        this.dialogWidth = dialogWidth;
        return this;
    }


    /***
     * 獲取title
     * @return
     */
    public TextView getTxt_title() {
        return mTitleTv;
    }

    /**
     * 獲取確定按鈕
     *
     * @return
     */
    public Button getBtn_neg() {
        return mCancelButton;
    }

    /***
     * 獲取用于添加自定義控件的ll
     * @return
     */
    public LinearLayout getlLayout_alert_ll() {
        return mMainLayout;
    }


    /***
     * 根據(jù)手機(jī)的分辨率從 dip 的單位 轉(zhuǎn)成為 px(像素)
     * @param dpValue
     * @return
     */
    public int dp2px(float dpValue) {
        final float scale = mContext.getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);
    }

    /**
     * 根據(jù)手機(jī)的分辨率從 px(像素) 的單位 轉(zhuǎn)成為 dp
     */
    public int px2dip(float pxValue) {
        final float scale = mContext.getResources().getDisplayMetrics().density;
        return (int) (pxValue / scale + 0.5f);
    }

    /**
     * 將px值轉(zhuǎn)換為sp值哲虾，保證文字大小不變
     */
    public int px2sp(float pxValue) {
        final float fontScale = mContext.getResources().getDisplayMetrics().scaledDensity;
        return (int) (pxValue / fontScale + 0.5f);
    }

    /**
     * 將sp值轉(zhuǎn)換為px值祠够，保證文字大小不變
     */
    public int sp2px(float spValue) {
        final float fontScale = mContext.getResources().getDisplayMetrics().scaledDensity;
        return (int) (spValue * fontScale + 0.5f);
    }

    /**
     * 獲取取消按鈕
     *
     * @return
     */
    public Button getBtn_pos() {
        return mSureButton;
    }

}

布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/ll_background"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/alert_bg"
    android:orientation="vertical">

    <TextView
        android:id="@+id/tv_title"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:layout_marginLeft="15dp"
        android:layout_marginRight="15dp"
        android:layout_marginTop="15dp"
        android:gravity="center"
        android:textColor="@color/black"
        android:textSize="@dimen/text_size_16sp"
        android:textStyle="bold" />


    <LinearLayout
        android:id="@+id/ll_alert"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" />

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="0.5dp"
        android:layout_marginTop="10dp"
        android:background="@color/dialog_line_bg" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn_neg"
            android:layout_width="wrap_content"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:background="@drawable/trans_bg"
            android:gravity="center"
            android:textColor="@color/font_blue"
            android:textSize="@dimen/text_size_16sp" />

        <ImageView
            android:id="@+id/img_line"
            android:layout_width="0.5dp"
            android:layout_height="50dp"
            android:background="@color/dialog_line_bg" />

        <Button
            android:id="@+id/btn_pos"
            android:layout_width="wrap_content"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:background="@drawable/trans_bg"
            android:gravity="center"
            android:textColor="@color/font_blue"
            android:textSize="@dimen/text_size_16sp" />
    </LinearLayout>

</LinearLayout>