Setting Ellipsize on TextView reduces lines shown by one (instead of only ellipsizing last)

问题

when I am using TextView with singleLine="true" and ellipsize="end"(my top TextView), it works well

but in another TextView having more then 1 lines (in my case 3 lines in my bottom TextView), lines="3" and maxLines="3" and ellipsize="end", doesn't work properly.

When I DON'T put ellipsize="end" in tvDesc, it shows 3 line, which is OK. Here is code : XML :

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ImageView
        android:id="@+id/imgv"
        android:layout_width="65dp"
        android:layout_height="80dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:src="@drawable/img1"
        android:scaleType="fitXY" />

    <TextView
        android:id="@+id/tvTitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_toRightOf="@+id/imgv"
        android:background="@android:color/white"
        android:textColor="@android:color/black"
        android:text="Title testing line number and ellipsize at end"
        android:maxLines="1"
        android:singleLine="true"
        android:ellipsize="end"    <---  WORKS WELL
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/tvDesc"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tvTitle"
        android:layout_toRightOf="@+id/imgv"
        android:layout_alignBottom="@+id/imgv"
        android:layout_alignParentRight="true"
        android:textSize="14dp"
        android:lines="3"
        android:maxLines="3"
                       <----------  WITHOUT ellipsize

        android:text="I wanna this textview of having 3 lines and ellipsize at END and at this time I am Testing for it. This TextView shows 3 lines WITHOUT ellipsize property, but shows only 2 Lines when ELLIPSIZE property is setted"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>

Above code shows TextView tvDesc with 3 Lines and No-Ellipsize. Here is Image :

But, I wanna ellipsize, so I uses followin code : XML :

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ImageView
        android:id="@+id/imgv"
        android:layout_width="65dp"
        android:layout_height="80dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:src="@drawable/img1"
        android:scaleType="fitXY" />

    <TextView
        android:id="@+id/tvTitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_toRightOf="@+id/imgv"
        android:background="@android:color/white"
        android:textColor="@android:color/black"
        android:text="Title testing line number and ellipsize at end"
        android:maxLines="1"
        android:singleLine="true"
        android:ellipsize="end"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/tvDesc"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tvTitle"
        android:layout_toRightOf="@+id/imgv"
        android:layout_alignBottom="@+id/imgv"
        android:layout_alignParentRight="true"
        android:textSize="14dp"
        android:lines="3"
        android:maxLines="3"
        android:ellipsize="end"    <------  WITH  ELLIPSIZE

        android:text="I wanna this textview of having 3 lines and ellipsize at END and at this time I am Testing for it. This TextView shows 3 lines WITHOUT ellipsize property, but shows only 2 Lines when ELLIPSIZE property is setted"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>

Which shows TextView tvDesc with only 2 lines and Ellipsize,

which is not properly dezired UI, as Followin:

I wanna 3 lines in TextView tvDesc with ellipsize

CAN ANYONE HELP ME.?

回答1:

This is by far the simplest solution I've found and am currently using in deployment. Let me know if you need any other assistance!

Oh and remember to remove the android:ellipsize tag in your XML since you will be using the bottom code to automatically ellipsize at the end of 3 lines.

TextView snippet;
snippet.setText("loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor loren ipsum dolor ")
ViewTreeObserver vto = this.snippet.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

    @Override
    public void onGlobalLayout() {
        ViewTreeObserver obs = snippet.getViewTreeObserver();
        obs.removeGlobalOnLayoutListener(this);
        if (snippet.getLineCount() > 3) {
            int lineEndIndex = snippet.getLayout().getLineEnd(2);
            String text = snippet.getText().subSequence(0, lineEndIndex - 3) + "...";
            snippet.setText(text);
        }
    }
});

回答2:

Just set android:maxLines and android:ellipsize.

<TextView
        android:id="@+id/tv_dua"
        android:ellipsize="end"
        android:maxLines="3"
        android:text="long text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

回答3:

Use the following to get a multiline textview with ellipsis on the last line :

android:maxLines="4"
android:ellipsize="end"
android:singleLine="false"

Replace 4 with the number of lines you want. Hope it helps !

回答4:

I tried it out with maxLines and ellipsize on Android 7 & 8.

android:maxLines="3"
android:ellipsize="end"

The preview shows 2 lines and on the third line "...".

But this seems to be a bug in the previewer.

On the device it just works fine, 3 lines with text, at the end of the third line "..."

回答5:

Just use ellipsize combined with scrollHorizontally="true". Simple & clean.

It worked perfectly for me.

回答6:

Try it

tv.setSingleLine(false);
tv.setEllipsize(TextUtils.TruncateAt.END);
int n = 3; // the exact number of lines you want to display
tv.setLines(n);

refer Programmatically create TextView with ellipsis

来源：https://stackoverflow.com/questions/11210553/setting-ellipsize-on-textview-reduces-lines-shown-by-one-instead-of-only-ellips

标签

android

textview

ellipsis