Android 自定义dialog 布局设置的宽高无效问题

参考：Android 自定义dialog 设置宽度的问题_onlySound的博客-优快云博客_android dialog宽度

自定义dialog的布局文件dialog_del_fav：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/bg_del_fav"
    android:paddingStart="23mm"
    android:paddingEnd="23mm"
    android:paddingBottom="13mm">

    <TextView
        android:id="@+id/del_fav_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="25mm"
        android:text="确认取消收藏吗？"
        android:textColor="#fff0f0f0"
        android:textSize="18mm" />
    <TextView
        android:id="@+id/tv_tv_del_fav_cancle"
        android:layout_width="80mm"
        android:layout_height="32mm"
        android:layout_below="@id/del_fav_title"
        android:layout_marginTop="25mm"
        android:background="@drawable/bg_del_fav_slt"
        android:clickable="true"
        android:focusable="true"
        android:gravity="center"
        android:text="取消"
        android:textColor="@color/white_F0F0F0"
        android:textSize="18mm"
        />

    <TextView
        android:id="@+id/tv_del_fav_confirm"
        android:layout_width="80mm"
        android:layout_height="32mm"
        android:layout_below="@id/del_fav_title"
        android:layout_marginLeft="15mm"
        android:layout_marginTop="25mm"
        android:layout_toRightOf="@id/tv_tv_del_fav_cancle"
        android:background="@drawable/bg_del_fav_slt"
        android:clickable="true"
        android:focusable="true"
        android:gravity="center"
        android:text="确认"
        android:textColor="@color/white_F0F0F0"
        android:textSize="18mm" />
</RelativeLayout>

activity引用：

    private void exit() {
        //初始化并弹出对话框方法

        View view = View.inflate(mContext, R.layout.dialog_del_fav, null);   // 自定义
//        View view = LayoutInflater.from(mContext).inflate(R.layout.dialog_del_fav, null, false);
        final AlertDialog dialog = new AlertDialog.Builder(mContext).setView(view).create();

        TextView title = view.findViewById(R.id.del_fav_title);
        TextView cancel = view.findViewById(R.id.tv_tv_del_fav_cancle);
        TextView confirm = view.findViewById(R.id.tv_del_fav_confirm);
        title.setText("确认退出吗");

        cancel.requestFocus();
        cancel.requestFocusFromTouch();
        cancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                dialog.dismiss();
            }
        });

        confirm.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
                App.getInstance().exitApp();
                dialog.dismiss();
            }
        });

        dialog.show();
    }

起初的效果图：

明显宽不对

然后改了一下 ，在dialog.show();后面加了两句代码：

 private void exit() {
        //初始化并弹出对话框方法

        View view = View.inflate(mContext, R.layout.dialog_del_fav, null);   // 自定义
//        View view = LayoutInflater.from(mContext).inflate(R.layout.dialog_del_fav, null, false);
        final AlertDialog dialog = new AlertDialog.Builder(mContext).setView(view).create();

        TextView title = view.findViewById(R.id.del_fav_title);
        TextView cancel = view.findViewById(R.id.tv_tv_del_fav_cancle);
        TextView confirm = view.findViewById(R.id.tv_del_fav_confirm);
        title.setText("确认退出吗");

        cancel.requestFocus();
        cancel.requestFocusFromTouch();
        cancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                dialog.dismiss();
            }
        });

        confirm.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
                App.getInstance().exitApp();
                dialog.dismiss();
            }
        });

        dialog.show();
        //此处设置位置窗体大小，注意一定要在show方法调用后再写设置窗口大小的代码，否则不起效果会
      dialog.getWindow().setLayout(290, 183);
       dialog.getWindow().setBackgroundDrawable(getResources().getDrawable(R.drawable.bg_del_fav));

    }

虽然显示正常了，但是由于项目在很多分辨率的机器上运行，有的机器上显示不全了，于是想别的办法，给dialog加style，将AlertDialog.Builder(mContext).setView(view).create();修改为：AlertDialog.Builder(mContext,R.style.Theme_dialog).setView(view).create();

整体修改如下：

private void exit() {
        //初始化并弹出对话框方法

        View view = View.inflate(mContext, R.layout.dialog_del_fav, null);   // 自定义
//        View view = LayoutInflater.from(mContext).inflate(R.layout.dialog_del_fav, null, false);
        final AlertDialog dialog = new AlertDialog.Builder(mContext,R.style.Theme_dialog).setView(view).create();

        TextView title = view.findViewById(R.id.del_fav_title);
        TextView cancel = view.findViewById(R.id.tv_tv_del_fav_cancle);
        TextView confirm = view.findViewById(R.id.tv_del_fav_confirm);
        title.setText("确认退出吗");

        cancel.requestFocus();
        cancel.requestFocusFromTouch();
        cancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                dialog.dismiss();
            }
        });

        confirm.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
                App.getInstance().exitApp();
                dialog.dismiss();
            }
        });

        dialog.show();
        //此处设置位置窗体大小，注意一定要在show方法调用后再写设置窗口大小的代码，否则不起效果会
//        dialog.getWindow().setLayout(290, 183);
//        dialog.getWindow().setBackgroundDrawable(getResources().getDrawable(R.drawable.bg_del_fav));

    }

其中，R.style.Theme_dialog文件如下：

<style name="Theme_dialog"  parent="@android:style/Theme.DeviceDefault.Light.Dialog">
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowNoTitle">true</item>
    <!--设置横屏最少宽度-->
    <item name="android:windowMinWidthMajor">220mm</item>
</style>

修改后的效果：