android Dialog自定义标题和内容和 按钮样式

        TextView title = new TextView(activity);
        title.setText("自定义标题");
        title.setPadding(dip2px(activity, 10), dip2px(activity, 15), dip2px(activity, 10), dip2px(activity, 10));
        title.setGravity(Gravity.CENTER);
        title.setTextColor(Color.BLACK);
        title.setTypeface(Typeface.DEFAULT_BOLD);
        title.setBackgroundColor(Color.WHITE);
        title.setTextSize(23);

        TextView msg = new TextView(activity);
        msg.setText("自定义内容、自定义内容、自定义内容、自定义内容、 \n");
        msg.setPadding(dip2px(activity, 10), dip2px(activity, 10), dip2px(activity, 6), dip2px(activity, 10));
        msg.setGravity(Gravity.LEFT);
//                msg.setBackground(new ColorDrawable(android.graphics.Color.TRANSPARENT));
        msg.setBackground(new ColorDrawable(Color.WHITE));
        msg.setTextColor(Color.GRAY);
        msg.setTextSize(16);

        AlertDialog dialog = new AlertDialog.Builder(activity, R.style.MyDialogStyle)
                .setCustomTitle(title)
                .setView(msg)
                .setPositiveButton("确定按钮", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
//                        requestPermission(activity, pers);

                    }
                })
                .setNegativeButton("取消按钮", null).create();
        dialog.show();


        ViewGroup.MarginLayoutParams mp1 = new ViewGroup.MarginLayoutParams(0,ViewGroup.LayoutParams.WRAP_CONTENT);  // 设置item的宽高
        mp1.setMargins(dip2px(activity, 5), dip2px(activity, 5), dip2px(activity, 5), dip2px(activity, 5));//分别是margin那四个属性  左、上、右、下边距
        LinearLayout.LayoutParams lp1 = new LinearLayout.LayoutParams(mp1);
        LinearLayout.LayoutParams lp2 = new LinearLayout.LayoutParams(mp1);
        lp1.weight=1;//权重
        lp2.weight=1;//权重


        Button posBtn = (Button) dialog.getButton(DialogInterface.BUTTON_POSITIVE);
        Button negBtn = (Button) dialog.getButton(DialogInterface.BUTTON_NEGATIVE);
//                posBtn.setBackgroundColor(Color.RED);
        posBtn.setTextColor(Color.WHITE);
        negBtn.setTextColor(Color.WHITE);
        posBtn.setTextSize(15);
        negBtn.setTextSize(15);
        posBtn.setLayoutParams(lp1);
        negBtn.setLayoutParams(lp2);
        posBtn.setPadding(dip2px(activity, 5), dip2px(activity, 5), dip2px(activity, 5), dip2px(activity, 5));//内边距
        negBtn.setPadding(dip2px(activity, 5), dip2px(activity, 5), dip2px(activity, 5), dip2px(activity, 5));
        int strokeWidth = 5;//边框宽度
        int roundRadius =  dip2px(activity, 12);//圆角半径
        GradientDrawable gd = new GradientDrawable();
        GradientDrawable gd1 = new GradientDrawable();
        gd.setColor(Color.parseColor("#FF4444"));//颜色
        gd1.setColor(Color.parseColor("#FFA8A8A8"));
        gd.setCornerRadius(roundRadius);//圆角
        gd1.setCornerRadius(roundRadius);
        posBtn.setBackground(gd);//设置确定按钮背景颜色 和按钮圆角度数
        negBtn.setBackground(gd1);//设置取消按钮背景颜色 和按钮圆角度数

    public static int dip2px(Context context, float dipValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dipValue * scale + 0.5f);
    }

dialog的自定义样式
    <style name="MyDialogStyle" parent="@android:style/Theme.Holo.Light.Dialog">
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowFrame">@null</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:backgroundDimEnabled">true</item>
    </style>

最终成果

Screenshot_20230106-142851.png