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Fix ExpandableTextView recursively call setText (#2252)

This commit is contained in:
Howard Wu 2022-11-29 22:19:44 +08:00 committed by GitHub
parent fd1c51e027
commit f5aee25427
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 31 additions and 20 deletions
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51
app/src/main/java/org/lsposed/manager/ui/widget/ExpandableTextView.java
View File

@ -19,6 +19,7 @@
package org.lsposed.manager.ui.widget;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Typeface;
import android.os.Bundle;
@ -49,6 +50,7 @@ public class ExpandableTextView extends MaterialTextView {
private final SpannableString collapse;
private final SpannableString expand;
private final SpannableStringBuilder sb = new SpannableStringBuilder();
private int lineCount = 0;
public ExpandableTextView(Context context) {
this(context, null);
@ -89,29 +91,44 @@ public class ExpandableTextView extends MaterialTextView {
@Override
public boolean onPreDraw() {
var lineCount = getLayout().getLineCount();
this.getViewTreeObserver().removeOnPreDrawListener(this);
if (lineCount == 0) {
lineCount = getLayout().getLineCount();
}
if (lineCount > maxLines) {
SpannableString s;
int end;
int hintTextOffsetEnd;
if (maxLines == getMaxLines()) {
nextLines = lineCount + 1;
end = getLayout().getLineStart(getMaxLines() - 1);
s = expand;
} else {
hintTextOffsetEnd = getLayout().getLineStart(getMaxLines() - 1);
setTextWithSpan(text, hintTextOffsetEnd - 1, expand);
} else if (nextLines == getMaxLines()) {
nextLines = maxLines;
end = text.length() + 1;
s = collapse;
hintTextOffsetEnd = getLayout().getLineStart(getMaxLines() - 1);
setTextWithSpan(text, hintTextOffsetEnd, collapse);
}
sb.clearSpans();
sb.clear();
sb.append(text, 0, end - 1);
sb.append("\n");
sb.append(s);
super.setText(sb, BufferType.NORMAL);
}
return super.onPreDraw();
}
private void setTextWithSpan(CharSequence text, int textOffsetEnd,
SpannableString sbStr) {
sb.clearSpans();
sb.clear();
sb.append(text, 0, textOffsetEnd);
sb.append("\n");
sb.append(sbStr);
super.setText(sb, BufferType.NORMAL);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (getLayout() != null) {
lineCount = getLayout().getLineCount();
}
}
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouchEvent(@NonNull MotionEvent event) {
Layout layout = this.getLayout();
@ -127,7 +144,6 @@ public class ExpandableTextView extends MaterialTextView {
if (links.length == 0) {
return false;
} else {
performClick();
return super.onTouchEvent(event);
}
}
@ -136,11 +152,6 @@ public class ExpandableTextView extends MaterialTextView {
return false;
}
@Override
public boolean performClick() {
return super.performClick();
}
@Override
public Parcelable onSaveInstanceState() {
Bundle bundle = new Bundle();