如果内容包含一个可扩展的字符串,并且我点击它或移动光标在其中,我会得到一个IndexOutOfLimsException,下面是错误日志
05-22 12:28:01.413:E/AndroidRuntime(5482):FATAL EXCEPTION:main 05-22 12:28:01.413:E/AndroidRuntime(5482):java.lang.IndexOutOfBoundsException:charAt:-1<0 05-22 12:28:01.413:E/AndroidRuntime(5482):at android.text.SpannableStringBuilder.charAt(SpannableStringBuilder.java:112)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.text.Selection.setSelection(Selection.java:81)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.text.Selection.setSelection(Selection.java:115)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.widget.Editor$InsertionHandleView.updateSelection(Editor.java:3697)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.widget.Editor$HandleView.positionAtCursorOffset(Editor.java:3417)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.widget.Editor$HandleView.updatePosition(Editor.java:3444)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.widget.Editor$PositionListener.onPreDraw(Editor.java:2285)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:707)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1936)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1105)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4462)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.view.Choreographer.doCallbacks(Choreographer.java:555)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.view.Choreographer.doFrame(Choreographer.java:525)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.os.Handler.handleCallback(Handler.java:615)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.os.Handler.dispatchMessage(Handler.java:92)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.os.Looper.loop(Looper.java:137)05-22 12:28:01.413:E/AndroidRuntime(5482):at android.app.ActivityThread.main(ActivityThread.java:4895)05-22 12:28:01.413:E/AndroidRuntime(5482):at java.lang.reflect.Method.invokeNative(Native Method)05-22 12:28:01.413:E/AndroidRuntime(5482):at java.lang.reflect.Method.invoke(Method.java:511)05-22 12:28:01.413:E/AndroidRuntime(5482):在com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)05-22 12:28:01.413:e/AndroidRuntime(5482):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)05-22 12:28:01.413:e/AndroidRuntime(5482):at dalvik.system.nativeStart.main(原生方法)
发布于 2018-08-29 14:11:34
索引值从0,
正在尝试访问索引处的字符-1
(这是一个非法索引)这就是获得异常的原因,可能是你必须修复从有效索引中获取的循环,同时遍历字符。
发布于 2018-08-29 14:43:56
这样试试:
editText.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Editable editable = editText.getText();
int pos = editText.getSelectionStart();
ClickableSpan[] link = editable.getSpans(pos,pos, ClickableSpan.class);
if (link.length != 0) {
link[0].onClick(v);
}
}
});
https://stackoverflow.com/questions/-100002481
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