Android 在警报对话框中设置文本 [英] Android Set text in alert dialog

问题描述

我正在尝试创建一个警报对话框，顶部有一个图像标题，底部有 2 个按钮，我想通过代码在中间设置文本.但是，我无法在横幅下方设置文本.我想创建类似于 this link 上的内容.但是，文本总是在图像上方结束，因为我不知道如何在对话框构建器中引用文本视图.谢谢

I'm trying to create an alert dialog with an image header across the top, 2 buttons at the bottom and I want to set the text in the middle from code. However, I can't get the set text underneath the banner. I want to create something similar to the one on this link. However, the text always ends up above the image as I don't know how to reference the textview in the dialog builder. Thanks

AlertDialog.Builder builder = new AlertDialog.Builder(this);
    LayoutInflater inflater = getLayoutInflater();

    builder.setView(inflater.inflate(R.layout.custom_dialog, null))
           .setMessage("Message" + message)
           .setPositiveButton("Share", new DialogInterface.OnClickListener() {
               public void onClick(DialogInterface dialog, int id) {
                   if (isNetworkAvailable()) {
                        if (...) {...} 
                        else {...}
                   } else {...} 
               }  
           })
           .setNegativeButton("Shake again!", new DialogInterface.OnClickListener() {
               public void onClick(DialogInterface dialog, int id) {
                   // User cancelled the dialog
               }
           })
           .setOnCancelListener(new OnCancelListener() {
                @Override
                public void onCancel(DialogInterface dialog) {}
           });

    AlertDialog alert = builder.create();

    alert.setOnDismissListener(new OnDismissListener() {
        @Override
        public void onDismiss(DialogInterface dialog) {}
    });

    alert.show();

布局xml文件为:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">

<ImageView
    android:src="@drawable/yo3"
    android:layout_width="match_parent"
    android:layout_height="64dp"
    android:scaleType="center"
    android:background="#FFFFBB33"
    android:contentDescription="@string/app_name" />

<TextView
    android:id="@+id/dialogtext"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"/>

</LinearLayout>`

推荐答案

不要用你的方式设置消息.

Don't set the message with the way you do it.

在您的自定义布局中，您必须设置的 textview 是dialogtext"TextView.试试这个……看看我得到了我膨胀的自定义视图，从那个视图中我得到了自定义对话框(你之前实际上没有设置)并设置消息在构建发生后显示.实际上，您可以拥有任何您想要的自定义视图，并根据自己的喜好设置视图的每个元素，甚至可以处理其上的事件

In your custom layout the textview you have to set is the "dialogtext" TextView. Try this...see that i get the custom view that i inflate and from that view i get the custom dialog (which you didn't actualy set before) and set the message to show after the build has taken place. Actually you can have whatever custom view you want and set each element of the view as you prefer or even handle events on it

AlertDialog.Builder builder = new AlertDialog.Builder(this);
LayoutInflater inflater = getLayoutInflater();

View customView = inflater.inflate(R.layout.custom_dialog, null);
TextView messageView = (TextView)customView.findViewById(R.id.dialogtext);


builder.setView(customView)
        .setPositiveButton("Share", new DialogInterface.OnClickListener() {
           public void onClick(DialogInterface dialog, int id) {

               if (isNetworkAvailable()){

                    if (......;

                    } else {
                        ......
                    }

               } else {
                   .......;
               }    
           }  
       })
       .setNegativeButton("Shake again!", new DialogInterface.OnClickListener() {
           public void onClick(DialogInterface dialog, int id) {
               // User cancelled the dialog

           }

    }).setOnCancelListener(new OnCancelListener() {

        @Override
        public void onCancel(DialogInterface dialog) {

        }
    });

messageView.SetText("Message" + message);



AlertDialog alert = builder.create();

alert.setOnDismissListener(new OnDismissListener() {

    @Override
    public void onDismiss(DialogInterface dialog) {


    }
});
alert.show();

这篇关于Android 在警报对话框中设置文本的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！