Android textview中的多个可点击字符串 [英] Android Multiple clickable strings in textview

问题描述

我正在创建一个小型 Android 应用.我想在一个文本视图中显示一个文本，其中包含多个要单击的部分.(每个都应该显示一些不同的信息)

I am creating a small Android app. I would like to display a text in a textview with multiple parts to click on. (Each should show some different message)

最后我设法找出如何在一个文本视图中显示多个跨度，但不幸的是 onClick 方法不起作用.根本没有任何反应，甚至没有 logcat 行.

Finally I managed to find out how to display mutiple spans in one textview, however unfortunately the onClick methods don't work. Simply nothing happens, not even a logcat line.

我有这样的事情:

SpannableStringBuilder ssb=new SpannableStringBuilder();
ssb.append("first  second")

ssb.setSpan(new ClickableSpan() {
    @Override
    public void onClick(View v) {
    //Eredmeny2.this is just the context, name of the whole class
    Toast.makeText(Eredmeny2.this, "first", Toast.LENGTH_LONG).show();
    }
}, 1, 3, 0);

ssb.setSpan(new ClickableSpan() {
    @Override
    public void onClick(View v) {
    Toast.makeText(Eredmeny2.this, "second", Toast.LENGTH_LONG).show();
    }
}, 7, 10, 0);

TextView t1=new TextView(this);
t1.setText(ssb);
...

文本下划线很好，但是当我单击它们时没有任何反应.它是 TableView 的一部分，尽管我认为这无关紧要.你有什么想法为什么它什么都不做吗?我想念什么?还是我应该以完全不同的方式来做?

The text is underlined fine, but nothing happens when i click them. It is a part of a TableView, although I do not think this is relevant. Do you have any ideas why it does not do anything? What do I miss? Or should I do it on some totally different way?

提前致谢.

此部分将使用的布局文件如下:

The layout file this part would use is the following:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
    android:id="@+id/ScrollView01"
    android:background="#FF0000">


    <TableLayout
        android:id="@+id/TableLayout01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:stretchColumns="0"
        android:showDividers="middle"
        android:padding="3dp">
    <TableRow
        android:id="@+id/TableRow01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/TextView01"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="3dp"
            android:background="#000000"
            android:textColor="#FFFFFF"
            android:padding="6dp"
            android:text="Hour"
            android:textSize="20sp"
            android:textStyle="bold" >

        </TextView>
        <TextView android:id="@+id/TextView02"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20sp"
            android:textStyle="bold"
            android:text="Minute"
            android:padding="6dp"
            android:textColor="#FFFFFF"
            android:background="#000000">
        </TextView>

    </TableRow>

    </TableLayout>


</ScrollView>

而TextView直接使用的TextView布局如下:

And the TextView layout that the TextView uses directly is the following:

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/tv" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content"
android:padding="10dp"
android:textSize="16sp"
android:background="#000000"
android:textIsSelectable="false"
android:textColor="#FFFFFF">
</TextView>

推荐答案

据我了解，您想让 textview 的多个部分可点击.

as i understand you want to make multiple part of textview clickable.

这段代码对我有用！

SpannableString ss = new SpannableString("this is a text");
ss.setSpan(new myClickableSpan(1),0, 4, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(new myClickableSpan(2),5, 7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(new myClickableSpan(3),8, 10, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

mTextView.setText(ss);
mTextView.setMovementMethod(LinkMovementMethod.getInstance());

只需自定义 ClickableSpan 来处理点击事件

just make custom ClickableSpan to handle the click event

public class myClickableSpan extends ClickableSpan{

    int pos;
    public myClickableSpan(int position){
        this.pos=position;
    }

    @Override
    public void onClick(View widget) {
        Toast.makeText(getApplicationContext(), "Position "  + pos + " clicked!", Toast.LENGTH_LONG).show();
    }

}

这篇关于Android textview中的多个可点击字符串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！