将字体大小更改为 AlertDialog

问题描述

我正在尝试将一些 loooong 文本放入 AlertDialog 中.唯一的问题是默认字体太大了，所以我想把它变小.

I am trying to put some loooong text into an AlertDialog.The only issue the default font size that is really too big, so I want to make it smaller.

以下是我尝试过的所有解决方法及其问题.

Here are all the workaround I tried and their issues.

解决方法 1) 使用 TextView 和 myView.setTextSize(12);

Workaround 1) Using a TextView and myView.setTextSize(12);

final TextView myView = new TextView(getApplicationContext());
myView.setText(myLongText);
myView.setTextSize(12);
final AlertDialog d = new AlertDialog.Builder(context)
    .setPositiveButton(android.R.string.ok, null)
.setTitle(myTitle)
.setView(myView)
.create();

问题:布局不滚动

解决方法 2) 使 TextView 可滚动.

Workaround 2) making TextView scrollable.

message.setMovementMethod(LinkMovementMethod.getInstance());

问题:布局是滚动的，但没有惯性"(不知道如何称呼它......但我想你明白.)

Issues: Layout is scrolling, bute there is no "inertia" (don't know how to call that.. But I guess you understand.)

解决方法 3) 使用滚动视图.

这就是我要尝试的，但我不敢相信没有更简单的解决方案......

That's what I am going to try, but I cannot believe there are no easier solutions...

推荐答案

实际上，您可以非常轻松地访问消息的 TextView，然后更改其大小.我用更大的尺寸进行了测试，但你可以使用任何你想要的尺寸.文本将很好地滚动，因为它已经这样做了.视图的 id 是 android.R.id.message

You can actually get access to the message's TextView pretty easily, and then change it's size. I tested with a bigger size, but you could use whatever size you want. The text will scroll nicely as it already does. The view's id is android.R.id.message

    AlertDialog dialog = new AlertDialog.Builder(this).setMessage("Hello world").show();
    TextView textView = (TextView) dialog.findViewById(android.R.id.message);
    textView.setTextSize(40);

这可能是一个更简洁的解决方案，但我不确定 TextView 是否存在 null 的风险.

This is probably a cleaner solution, though I'm not sure if there's a risk that the TextView could be null or not.

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