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
对于那些正在寻找Kotlin解决方案的人来说，这里是对我有用的:
private fun setupTermsAndConditions() {
val termsAndConditions = resources.getString(R.string.terms_and_conditions)
val spannableString = SpannableString(termsAndConditions)
val clickableSpan = object : ClickableSpan() {
override fun onClick(widget: View) {
if (checkForWifiAndMobileInternet()) {
// binding.viewModel!!.openTermsAndConditions()
showToast("Good, open the link!!!")
} else {
showToast("Cannot open this file because of internet connection!")
}
}
override fun updateDrawState(textPaint : TextPaint) {
super.updateDrawState(textPaint)
textPaint.color = resources.getColor(R.color.colorGrey)
textPaint.isFakeBoldText = true
}
}
spannableString.setSpan(clickableSpan, 34, 86, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
binding.tvTermsAndConditions.text = spannableString
binding.tvTermsAndConditions.movementMethod = LinkMovementMethod.getInstance()
binding.tvTermsAndConditions.setHighlightColor(Color.TRANSPARENT);
}
其他回答
我会建议一种不同的方法，我认为这种方法需要更少的代码，而且更“本地化友好”。
假设你的目标活动被称为“ActivityStack”，在manifest中定义一个意图过滤器，使用一个自定义的方案(例如。“myappscheme”)
<activity
android:name=".ActivityStack">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:host="stack"/>
<data android:scheme="myappscheme" />
</intent-filter>
</activity>
定义没有任何特殊标签的TextView(重要的是不要使用"android:autoLink"标签，参见:https://stackoverflow.com/a/20647011/1699702):
<TextView
android:id="@+id/stackView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/stack_string" />
然后在TextView的文本中使用带有自定义方案和主机的链接作为(在String.xml中):
<string name="stack_string">Android is a Software <a href="myappscheme://stack">stack</a></string>
和“激活”与setMovementMethod()(在onCreate()的活动或onCreateView()的片段链接):
TextView stack = findViewById(R.id.stackView);
stack.setMovementMethod(LinkMovementMethod.getInstance());
这将通过点击“stack”字打开堆栈活动。
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") })
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"
/>
对于kotlin使用这个扩展
fun TextView.makeLinks(vararg links: Pair<String, View.OnClickListener>) {
val spannableString = SpannableString(this.text)
for (link in links) {
val clickableSpan = object : ClickableSpan() {
override fun onClick(view: View) {
Selection.setSelection((view as TextView).text as Spannable, 0)
view.invalidate()
link.second.onClick(view)
}
}
val startIndexOfLink = this.text.toString().indexOf(link.first)
spannableString.setSpan(
clickableSpan, startIndexOfLink, startIndexOfLink + link.first.length,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
)
spannableString.setSpan(
ForegroundColorSpan(Color.parseColor("#46C2CC")),
startIndexOfLink,
startIndexOfLink + link.first.length,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
)
}
this.movementMethod =
LinkMovementMethod.getInstance() // without LinkMovementMethod, link can not click
this.setText(spannableString, TextView.BufferType.SPANNABLE)
}
像这样调用它
binding.agreeText.makeLinks(Pair(getString(R.string.terms_conditionsClick),View.OnClickListener {
startActivity(TermsAndConditionActivity.getIntent(this))
}))
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
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