Created
September 19, 2016 06:01
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| package com.lab.dmm.okan.ui; | |
| import android.content.Context; | |
| import android.util.AttributeSet; | |
| import android.view.ViewTreeObserver; | |
| import android.widget.TextView; | |
| import java.util.regex.Matcher; | |
| import java.util.regex.Pattern; | |
| /** | |
| * Created by le.quang.dao on 19/09/2016. | |
| */ | |
| public class EllipsizeTextView extends TextView { | |
| private static final String REPLACER = "…"; | |
| private final ViewTreeObserver.OnGlobalLayoutListener mListener; | |
| /** | |
| * @param context Context | |
| */ | |
| public EllipsizeTextView(Context context) { | |
| this(context, null); | |
| } | |
| /** | |
| * @param context Context | |
| * @param attrs AttributeSet | |
| */ | |
| public EllipsizeTextView(Context context, AttributeSet attrs) { | |
| this(context, attrs, 0); | |
| } | |
| public EllipsizeTextView(Context context, AttributeSet attrs, int defStyleAttr) { | |
| super(context, attrs, defStyleAttr); | |
| mListener = new ViewTreeObserver.OnGlobalLayoutListener() { | |
| @Override | |
| public void onGlobalLayout() { | |
| forceMultiLineEllipsize(); | |
| getViewTreeObserver().removeOnGlobalLayoutListener(mListener); | |
| } | |
| }; | |
| } | |
| @Override | |
| public void setText(CharSequence text, BufferType type) { | |
| super.setText(text, type); | |
| if (mListener != null) { | |
| this.getViewTreeObserver().addOnGlobalLayoutListener(mListener); | |
| } | |
| } | |
| private void forceMultiLineEllipsize() { | |
| int maxLines = Math.min(getMaxLines(), getHeight() / getLineHeight()); // 現在は3 | |
| if (getLineCount() > maxLines) { | |
| int lineEndIndex = getLayout().getLineEnd(maxLines - 1); | |
| if (getText().length() <= lineEndIndex) { | |
| lineEndIndex = getText().length() - 1; | |
| } | |
| String theLastCharOnTheLastIndex = String.valueOf(getText().charAt(lineEndIndex)); | |
| boolean isTheLastCharOnTheLastIndexASCII = isAnASCII(theLastCharOnTheLastIndex); | |
| if (isTheLastCharOnTheLastIndexASCII) { | |
| lineEndIndex -= 1; | |
| } | |
| final String text2 = getText().subSequence(0, lineEndIndex - REPLACER.length()) + REPLACER; | |
| setText(text2); | |
| } | |
| } | |
| private static boolean isAnASCII(String str) { | |
| Pattern pattern = Pattern.compile("^[\\p{ASCII}]$"); | |
| Matcher matcher = pattern.matcher(str); | |
| return matcher.find(); | |
| } | |
| } |
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