I'm trying to enter more than 2000 - 3000 characters in an android TextView
it does not display anything.
any one guide is there character limit on android textview or what ?
I did some small testing in G3, I found that:
If there is a TextView in the activtiy layout, it can show more than 4096
characters, but when it owned by the item of listview, it just display
invisible. So there's no hard limit, just what can be displayed depending on the device.
Post your code might be your textview expand and fill the screen use Scrollview to handle this issue.
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:alpha="0.75"
android:gravity="center_horizontal"
android:textAppearance="#android:style/TextAppearance"
android:textColor="#color/alert_dialog_heading_text_color"
android:textSize="#dimen/text_size_for_subheading" />
</ScrollView>
Related
I have a text to be displayed in a text view. The text contains 200 lines of data, each line is having 10 characters. So total 2000 characters. The text view is inside a vertical scrollable view. The first 50 lines are not getting displayed. If the text view had a limitation to the number of characters, then its fair enough if it loses the last few lines, but why is it taking off the head??.
And also what is the limit on the number of characters for a text view??
My code:
<ScrollView
android:id="#+id/scroll_layout_ECG"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/btn_ECG"
android:layout_alignLeft="#+id/btn_ECG"
android:layout_alignStart="#+id/btn_ECG"
android:layout_marginBottom="16dp"
android:layout_marginTop="16dp" >
<TextView
android:id="#+id/tvECG_samples"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:hint="ECG\nsamples"
android:textSize="25sp" />
</ScrollView>
In the 1st screen shot, the data is being shown from 51st line. The first 50 lines are clipped off. Why??
no need of external scrollbar rather than u can use textview's property
android:scrollbars="vertical"
I think It will help u
I'm having a changeable text like in the screenshot, where the quantity changes according to plus and minus buttons.
What is the best to implement that on Android ?
Could I make use of Spannable text in this case ? Or do I implement that with
a vertical LinearLayout with a TextView then a separator view then another TextView that changes ?
If you want to make it your own way, look for click events on the plus and minus buttons, change an integer variable (say mQuantity) according to these click event (mQuantity++ or mQuantity-- respectively), and change the TextView content with mQuantityLabel.setText(mQuantity+"");. That extra +"" is to avoid setText looking for a probably non existing id inside strings.xml. You could just need to convert the int to String, but this suffices for this case.
However, and it may be more sensible to go for already established solutions for number increase/decrease such as NumberPicker (after API 11) or SimonVT's NumberPicker (backport of NumberPicker, if the minSdkVersion is prior to API 11).
Managed to achieve this layout, using LinearLayout.
It was straightforward I thought that it might need tricky layout technique, but turned out to be easy.
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/quantity"
android:textAppearance="#android:style/TextAppearance.Medium" />
<View
android:layout_width="match_parent"
android:layout_height="2px"
android:background="#color/black" />
<TextView
android:id="#+id/quantity_text_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="01"
android:textAppearance="#android:style/TextAppearance.Medium" />
</LinearLayout>
I know various questions have been asked about this before but I can't find an answer for my issue. I am working on an android application and I want an EditText field to expand as the user types into it. I want it to be a minimum size first and expand if the user types more than what the minimum allows. Here is my code so far:
<ScrollView
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:fillViewport="true" >
<linearLayout
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:orientation="vertical"
android:padding="5dp" >
<linearLayout>
...content...
</linearLayout>
<linearLayout>
...content...
</linearLayout>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="textMultiLine"
android:lines="7"
android:gravity="top" />
</linearLayout>
</ScrollView>
The EditText field is inside the parent linearLayout, inside the parent ScrollView. It looks fine on screen but when I go past the 7th line in the edit text field I have to use a trackball to go back up through the text field. Scrolling the screen scrolls the entire screen. Can anyone give me some tips? I've tried implementing different suggestions to similar questions but none have given me the correct answer. Thanks
As #tozka has stated in the comments, in a layout file, specify: android:minLines="" instead of android:lines="".
In Java: editText.setMinLines(int) instead of editText.setLines(int).
In C# (Mono for Android) editText.SetMinLines(int) instead of editText.SetLines(int).
From the Android docs:
public void setMinLines (int minlines)
Makes the TextView at least this many lines tall. Setting this value overrides any other (minimum) height setting.
I'm trying to make a text box about 3 lines high but also the textbox will also expand depending on the amount of information entered. I've used wrap_content which displays as one line and I've used android:layout_height="150dp", however the text box does not expand. Any guidance would be much appreciated.
<EditText
android:id="#+id/editEmailCompose"
android:layout_width="400dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#+id/editEmailSubject"
android:layout_toRightOf="#+id/textSubject"
android:ems="10"
android:gravity="top|left"
android:layout_marginRight="20dp"
android:hint="#string/emailCompose" />
Ok so I found the code required. It may help others.
*android:layout_height="wrap_content"
android:isScrollContainer="true"
android:minHeight="120dp"
android:inputType="textMultiLine"*
I'm using a TextView in Android, what I want to show 1 line in TextView ending with ". " but this give [] type box at the end. I don't know why? I just want to remvoe this box and only to show text ending with "... "
Update code for the list_row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="85dp"
android:orientation="horizontal"
android:gravity="center_vertical"
android:cacheColorHint="#4C7B8D"
android:background="#4C7B8D">
<ImageView
android:id="#+id/videoListImage"
android:src="#drawable/audio_thumbnail60x60"
android:layout_height="75dp"
android:layout_alignParentLeft="true"
android:layout_centerInParent="true"
android:scaleType="fitXY"
android:layout_width="75dp"
android:padding="4dp"
android:background="#color/light_gray" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginRight="5dp"
android:layout_toLeftOf="#+id/next_arrow"
android:orientation="vertical"
android:gravity="center_vertical"
android:paddingLeft = "5dp">
<TextView
android:id="#+id/row_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:singleLine="true"
android:textColor="#color/app_background_color"
android:textSize="18sp"
android:ellipsize="end"
android:maxLines="1" />
<TextView
android:id="#+id/row_dis"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:singleLine="true"
android:textColor="#color/color_black"
android:layout_marginRight="2dp"
android:textSize="15sp"
android:ellipsize="end"
android:maxLines="1" />
<TextView
android:text="$7.50"
android:id="#+id/audio_price_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="16dp"
android:textColor="#color/color_white"
android:textStyle = "bold"
android:paddingLeft = "12dp"
android:paddingRight = "12dp"
android:background="#drawable/blue_round_cornor_background" />
</LinearLayout>
<ImageView
android:id="#+id/next_arrow"
android:src="#drawable/next_arrow"
android:layout_toLeftOf="#+id/saved_purchased"
android:scaleType="fitXY"
android:layout_height="25dp"
android:layout_width="18dp"
android:layout_centerVertical="true"
android:visibility = "gone"/>
<ImageView
android:id="#+id/saved_purchased"
android:layout_alignParentRight="true"
android:layout_alignParentTop ="true"
android:scaleType="fitXY"
android:layout_height="25dp"
android:layout_width="25dp"
android:layout_marginRight="2dp"/>
</RelativeLayout>
Here is the images of "next_arrow"
Here is the code I am using the getView() in adapter.
String discription = listData.getDescription();
if (discription != null && discription.length() > 0) {
if (textViewDis != null) {
textViewDis.setTypeface(titleFont);
Log.e("data", ""+discription);
discription.replaceAll("\r\n", "");
textViewDis.setText(discription);
}
}
Here is the actual String of description to be display.
Andrew and Stephanie Tidwell candidly share their success story in this business. This story will help everyone listening realize that no one is perfect, even in a second generation business. This is a streaming audio file.
Still have some issue? I can update question more.
Quoting myself from one of my books:
Android's TextView class has the built-in ability to "ellipsize" text,
truncating it and adding an ellipsis if the text is longer than the available
space. You can use this via the android:ellipsize attribute, for example.
This works fairly well, at least for single-line text.
The ellipsis that Android uses is not three periods. Rather it uses an actual
ellipsis character, where the three dots are contained in a single glyph.
Hence, any font that you use that you also use the "ellipsizing" feature will
need the ellipsis glyph.
Beyond that, though, Android pads out the string that gets rendered on-screen, such that the length (in characters) is the same before and after
"ellipsizing". To make this work, Android replaces one character with the
ellipsis, and replaces all other removed characters with the Unicode
character 'ZERO WIDTH NO-BREAK SPACE' (U+FEFF). This means the
"extra" characters after the ellipsis do not take up any visible space on
screen, yet they can be part of the string.
However, this means any custom fonts you use for TextView widgets that
you use with android:ellipsize must also support this special Unicode
character. Not all fonts do, and you will get artifacts in the on-screen
representation of your shortened strings if your font lacks this character
(e.g., rogue X's appear at the end of the line).
I have bumped into the same problem when was trying to use custom "MetaPro-Medium.otf" as font for TextView with a
android:singleLine="true".
The box at the end of the string was really annoying.
I found no way how to solve this problem in Android, but at the same time found following work around.
I have installed "FontLab Studio v5.04"
Opened my font
Selected one of symbols I was not going to use
Menu->Glyph->Rename Glyph
Changed the name and unicode index from it`s original value to "FEFF" (Thank CommonsWare)
Double click on selected symbol and then remove all lines this symbol was created from.
Menu->File->Generate Font->save as type otf
As a result I got updated font and problem gone away.
Arslan, your layout is working fine in my case, I have tested the same with:
<TextView
android:id="#+id/row_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:singleLine="true"
android:textSize="18sp"
android:ellipsize="end"
android:maxLines="1"
android:text="This is the demo testing demo testing This is the demo testing demo testing"/>
... and getting the exact output as you want "one line ended with ..." and box should be removed. So I think there may be a something wrong with any character or text you are setting.
I face the same issue (show boxes([])) for some special symbols when I try to show content which is coming from webservice url even, I don't use android:ellipsize. then I replace code from
textview.settext(content);
to
textview.settext(Html.fromHtml(content));
working fine.
Actually I was running into this issue and instead of changing the font or using setText I just added scrollHorizontally as false and it fixed the extra box character
android:singleLine="true"
android:scrollHorizontally="false"
android:ellipsize="end"
There was a similar problem which i was facing in my project where in i was using a font type for the text view. few font types have these problem of making the ... appear as [] at the last. The problem would be solved if u try changing the font.