我有文本“Android是一个软件堆栈”。在这个文本中,我想设置“堆栈”文本为可点击。所以,如果你点击它,它将重定向到一个新的活动(不在浏览器中)。
我试过了,但没有找到解决办法。
我有文本“Android是一个软件堆栈”。在这个文本中,我想设置“堆栈”文本为可点击。所以,如果你点击它,它将重定向到一个新的活动(不在浏览器中)。
我试过了,但没有找到解决办法。
当前回答
Java解决方案(更新2022年)
特点:
允许多个点击时,有重复的词。 可以为每个重复的单词量身定制特定的命令。
我以daler445的代码为基础,允许对重复的单词使用多个可单击的命令。
在Java课上:
public class MainActivity extends AppCompatActivity {
SharedPreferences sp;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sp = getSharedPreferences("MyUserPrefs", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
TextView fulltext = (TextView) findViewById(R.id.fulltext);
//replace setText("") to setText("Android is a Software stack") for his case
fulltext.setText("Search [1] this full [1] text with repeated strings. Search [2] Search [3] full [2] full [3]");
List<Pair<String, View.OnClickListener>> links = new ArrayList<>();
//replace "Search" with "stack" for his case
String stringtohyperlink = "Search";
String stringtohyperlink2 = "full";
links.add(new Pair<>(stringtohyperlink, new View.OnClickListener() {
@Override
public void onClick(View v) {
String position = sp.getString("position","0");
if (position.equals("1")) {
Toast.makeText(MainActivity.this, "Search 1 has been Clicked.", Toast.LENGTH_SHORT).show();
editor.putString("position","0");
editor.apply();
}
if (position.equals("2")) {
Toast.makeText(MainActivity.this, "Search 2 has been Clicked.", Toast.LENGTH_SHORT).show();
editor.putString("position","0");
editor.apply();
}
if (position.equals("3")) {
Toast.makeText(MainActivity.this, "Search 3 has been Clicked.", Toast.LENGTH_SHORT).show();
editor.putString("position","0");
editor.apply();
}
}
}));
links.add(new Pair<>(stringtohyperlink2, new View.OnClickListener() {
@Override
public void onClick(View v) {
String position = sp.getString("position","0");
if (position.equals("1")) {
Toast.makeText(MainActivity.this, "full 1 has been Clicked.", Toast.LENGTH_SHORT).show();
editor.putString("position","0");
editor.apply();
}
if (position.equals("2")) {
Toast.makeText(MainActivity.this, "full 2 has been Clicked.", Toast.LENGTH_SHORT).show();
editor.putString("position","0");
editor.apply();
}
if (position.equals("3")) {
Toast.makeText(MainActivity.this, "full 3 has been Clicked.", Toast.LENGTH_SHORT).show();
editor.putString("position","0");
editor.apply();
}
}
}));
makeLinks(fulltext, links);
}
public void makeLinks(TextView textView, List<Pair<String, View.OnClickListener>> links) {
SpannableString spannableString = new SpannableString(textView.getText().toString());
int startIndexState = -1;
SharedPreferences.Editor editor = sp.edit();
for (Pair<String, View.OnClickListener> link : links) {
ClickableSpan clickableSpan = new ClickableSpan() {
@Override
public void onClick(@NonNull View widget) {
editor.putString("position","1");
editor.apply();
widget.invalidate();
assert link.second != null;
link.second.onClick(widget);
}
};
ClickableSpan clickableSpan2 = new ClickableSpan() {
@Override
public void onClick(@NonNull View widget) {
editor.putString("position","2");
editor.apply();
widget.invalidate();
assert link.second != null;
link.second.onClick(widget);
}
};
ClickableSpan clickableSpan3 = new ClickableSpan() {
@Override
public void onClick(@NonNull View widget) {
editor.putString("position","3");
editor.apply();
widget.invalidate();
assert link.second != null;
link.second.onClick(widget);
}
};
//... This only allows for 3 repeated words
//... Add more of it, if there are more repeated words.
assert link.first != null;
int startIndexOfLink = textView.getText().toString().indexOf(link.first, startIndexState + 1);
spannableString.setSpan(clickableSpan, startIndexOfLink, startIndexOfLink + link.first.length(), Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
int startIndexOfLink2 = textView.getText().toString().indexOf(link.first, startIndexOfLink + 1);
if (startIndexOfLink2 != -1) {
spannableString.setSpan(clickableSpan2, startIndexOfLink2, startIndexOfLink2 + link.first.length(), Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
}
int startIndexOfLink3 = textView.getText().toString().indexOf(link.first, startIndexOfLink2 + 1);
if (startIndexOfLink3 != -1) {
spannableString.setSpan(clickableSpan3, startIndexOfLink3, startIndexOfLink3 + link.first.length(), Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
}
//... This only allows for 3 repeated words
//... Add more of it, if there are more repeated words.
textView.setMovementMethod(LinkMovementMethod.getInstance());
textView.setText(spannableString, TextView.BufferType.SPANNABLE);
}
}
}
在xml
<TextView
android:id="@+id/fulltext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
Demo
其他回答
这是一个Kotlin方法,使TextView的部分可点击:
private fun makeTextLink(textView: TextView, str: String, underlined: Boolean, color: Int?, action: (() -> Unit)? = null) {
val spannableString = SpannableString(textView.text)
val textColor = color ?: textView.currentTextColor
val clickableSpan = object : ClickableSpan() {
override fun onClick(textView: View) {
action?.invoke()
}
override fun updateDrawState(drawState: TextPaint) {
super.updateDrawState(drawState)
drawState.isUnderlineText = underlined
drawState.color = textColor
}
}
val index = spannableString.indexOf(str)
spannableString.setSpan(clickableSpan, index, index + str.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
textView.text = spannableString
textView.movementMethod = LinkMovementMethod.getInstance()
textView.highlightColor = Color.TRANSPARENT
}
它可以被多次调用,在TextView中创建几个链接:
makeTextLink(myTextView, str, false, Color.RED, action = { Log.d("onClick", "link") })
makeTextLink(myTextView, str1, true, null, action = { Log.d("onClick", "link1") })
我编写了一个例子来解决你的问题在Kotlin。
这是准则:
val completeText = getString(R.string.terms_description)
val textToFind = getString(R.string.show_terms)
val spannableString: Spannable = SpannableString(completeText)
val startFocus = completeText.indexOf(textToFind)
val endFocus = startFocus + textToFind.length
spannableString.setSpan(object: ClickableSpan() {
override fun onClick(p0: View) {
showMessage()
}
}, startFocus, endFocus, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
show_terms.text = spannableString
show_terms.movementMethod = LinkMovementMethod.getInstance();
show_terms.highlightColor = Color.TRANSPARENT;
这是XML
<CheckBox
android:id="@+id/check_agree_terms"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:id="@+id/show_terms"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColorLink="@color/colorPrimary"
android:layout_toEndOf="@id/check_agree_terms"/>
这就是它的样子
在这里输入图像描述
这是一个kotlin扩展(不工作,如果文本重复)
textView.makeTextClickable(
contentText = "Hello world",
clickableText = "world",
isBoldText = true,
onClick = {
openPageInBrowser(BuildConfig.PRIVACY_POLICY_URL)
}
)
internal fun TextView.makeTextClickable(
contentText: String,
clickableText: String,
onClick: () -> Unit,
isUnderlineText: Boolean = false,
isBoldText: Boolean = false
) {
val spannableString = SpannableString(contentText)
val clickableSpan = object : ClickableSpan() {
override fun onClick(widget: View) {
onClick()
}
override fun updateDrawState(ds: TextPaint) {
super.updateDrawState(ds)
ds.isUnderlineText = isUnderlineText
ds.isFakeBoldText = isBoldText
}
}
val clickableTextStartIndex = text.indexOf(clickableText)
val clickableTextEndIndex = clickableTextStartIndex + clickableText.length
spannableString.setSpan(
clickableSpan,
clickableTextStartIndex,
clickableTextEndIndex,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
)
this.text = spannableString
this.movementMethod = LinkMovementMethod.getInstance()
}
android.text.style.ClickableSpan可以解决你的问题。
SpannableString ss = new SpannableString("Android is a Software stack");
ClickableSpan clickableSpan = new ClickableSpan() {
@Override
public void onClick(View textView) {
startActivity(new Intent(MyActivity.this, NextActivity.class));
}
@Override
public void updateDrawState(TextPaint ds) {
super.updateDrawState(ds);
ds.setUnderlineText(false);
}
};
ss.setSpan(clickableSpan, 22, 27, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
TextView textView = (TextView) findViewById(R.id.hello);
textView.setText(ss);
textView.setMovementMethod(LinkMovementMethod.getInstance());
textView.setHighlightColor(Color.TRANSPARENT);
在XML:
<TextView
...
android:textColorLink="@drawable/your_selector"
/>
提供的解决方案相当不错。然而,我通常使用更简单的解决方案。
这是一个linkify效用函数
/**
* Method is used to Linkify words in a TextView
*
* @param textView TextView who's text you want to change
* @param textToLink The text to turn into a link
* @param url The url you want to send the user to
*/
fun linkify(textView: TextView, textToLink: String, url: String) {
val pattern = Pattern.compile(textToLink)
Linkify.addLinks(textView, pattern, url, { _, _, _ -> true })
{ _, _ -> "" }
}
使用这个函数非常简单。这里有一个例子
// terms and privacy
val tvTerms = findViewById<TextView>(R.id.tv_terms)
val tvPrivacy = findViewById<TextView>(R.id.tv_privacy)
Utils.linkify(tvTerms, resources.getString(R.string.terms),
Constants.TERMS_URL)
Utils.linkify(tvPrivacy, resources.getString(R.string.privacy),
Constants.PRIVACY_URL)