Reputation: 2053
I'm trying to leverage new Snackbar
from Android Design Support Library to display multiline snackbar, as shown in http://www.google.com/design/spec/components/snackbars-toasts.html#snackbars-toasts-specs:
import android.support.design.widget.Snackbar;
final String snack = "First line\nSecond line\nThird line";
Snackbar.make(mView, snack, Snackbar.LENGTH_LONG).show();
It displays only First line...
on my Nexus 7. How to make it display all lines?
PS: I tried Toast
and it displayed all lines.
Upvotes: 109
Views: 42632
Reputation: 6764
There's now a method on Snackbar to do exactly this. For example:
val snackbar = Snackbar.make(view, msgResId, Snackbar.LENGTH_LONG)
snackbar.setTextMaxLines(2)
snackbar.show()
Upvotes: 3
Reputation: 43
Snackbar height adjustment:
val sMsg = "Msg\n\n"
val sOk = getString(R.string.ok)
val sMoreLines = StringBuilder()
for (iCtr in 1..6) {
sMoreLines.append("\n")
}
Snackbar
.make(
this.requireActivity().findViewById(android.R.id.content),
sMsg,
Snackbar.LENGTH_INDEFINITE)
.setAction("$sMoreLines$sOk\n$sMoreLines") {
// ...
}
.show()
Upvotes: 0
Reputation: 927
2021 Answer in Kotlin for com.google.android.material:material:1.4.0
isSingleLine = false
is required as well as maxLines = 5
Snackbar.make(view, "line 1\nline 2", BaseTransientBottomBar.LENGTH_INDEFINITE)
.apply {
this.view.findViewById<TextView>(com.google.android.material.R.id.snackbar_text)?.apply {
maxLines = 5
isSingleLine = false
}
}
.show()
Upvotes: 3
Reputation: 3540
May i suggest you to use com.google.android.material.snackbar.Snackbar
. This is the recommanded way by google. First you have to add your snackbar.
final Snackbar snackbar = Snackbar.make(
findViewById(R.id.activity_layout),
"snackbar explanation text \n multilines \n\n here",
Snackbar.LENGTH_INDEFINITE)
.setAction(R.string.action_settings, new View.OnClickListener() {
@Override
public void onClick(View view) {
// your action here
}
});
Then to add multilines support
TextView messageView = snackbar.getView().findViewById(R.id.snackbar_text);
messageView.setMaxLines(4);
Finally show the snackbar.
snackbar.show();
Upvotes: 2
Reputation: 5470
Just set the maxLines
attribute of Snackbars Textview
View snackbarView = snackbar.getView();
TextView textView = (TextView) snackbarView.findViewById(android.support.design.R.id.snackbar_text);
textView.setMaxLines(5); // show multiple line
"com.google.android.material:material:1.0.0"
dependency, then you will use this: com.google.android.material.R.id.snackbar_text
to access the Snackbar's TextView.You can use even R.id.snackbar_text
as well. it's work for me.
Upvotes: 259
Reputation: 6173
updateMaxLine
, this solution is less likely to break if Google decide to change the id of a text view)val snackBar = Snackbar.make(view, message, duration)
snackBar.view.allViews.updateMaxLine(5)
snackBar.show()
just note, this option will update the max line for all the text views in the Snakbar view (which tbh I do not think it matters)
add this as extension
private fun <T> Sequence<T>.updateMaxLine(maxLine : Int) {
for (view in this) {
if (view is TextView) {
view.maxLines = maxLine
}
}
}
Upvotes: 0
Reputation: 631
In Kotlin, you can just do
Snackbar.make(root_view, "Yo\nYo\nYo!", Snackbar.LENGTH_SHORT).apply {
view.snackbar_text.setSingleLine(false)
show()
}
You could also replace setSingleLine(false)
with maxLines = 3
.
Android Studio should prompt you to add
import kotlinx.android.synthetic.main.design_layout_snackbar_include.view.*
I haven't been able to get this to work again, so I'll just share what I think is the cleanest way to write in Kotlin what a few others have already shared:
import com.google.android.material.R as MaterialR
Snackbar.make(root_view, "Yo\nYo\nYo!", Snackbar.LENGTH_SHORT).apply {
val textView = view.findViewById<TextView>(MaterialR.id.snackbar_text)
textView.setSingleLine(false)
show()
}
Upvotes: 5
Reputation: 3242
so as i am using latest material design library from google, com.google.android.material:material:1.1.0
and i used simple following code snipet below, to resolve allow to more lines in snackbar. hope it will help to new developers as well.
TextView messageView = snackbar.getView().findViewById(R.id.snackbar_text);
messageView.setMaxLines(5);
Upvotes: 0
Reputation: 2362
In kotlin you can use extensions.
// SnackbarExtensions.kt
fun Snackbar.allowInfiniteLines(): Snackbar {
return apply { (view.findViewById<View?>(R.id.snackbar_text) as? TextView?)?.isSingleLine = false }
}
Usage:
Snackbar.make(view, message, Snackbar.LENGTH_LONG)
.allowInfiniteLines()
.show()
Upvotes: 11
Reputation: 364948
With the Material Components Library you can define it using with the snackbarTextViewStyle
attribute in the app theme:
<style name="AppTheme" parent="Theme.MaterialComponents.*">
...
<item name="snackbarTextViewStyle">@style/snackbar_text</item>
</style>
<style name="snackbar_text" parent="@style/Widget.MaterialComponents.Snackbar.TextView">
...
<item name="android:maxLines">5</item>
</style>
Note: it requires the version 1.2.0 of the library.
Upvotes: 21
Reputation: 2771
Just a quick comment, if you are using com.google.android.material:material
the prefix or package for R.id
should be com.google.android.material
val snackbarView = snackbar.view
val textView = snackbarView.findViewById<TextView>(com.google.android.material.R.id.snackbar_text)
textView.maxLines = 3
Upvotes: 0
Reputation: 302
Late, but might be helpful to someone:
public void showSnackBar(String txt, View view){
final Snackbar snackbar = Snackbar.make(view,txt,Snackbar.LENGTH_INDEFINITE)
.setAction("OK", new View.OnClickListener() {
@Override
public void onClick(View view) {
//do something
}
});
View view = snackbar.getView();
TextView textView = (TextView) view.findViewById(android.support.design.R.id.snackbar_text);
textView.setMaxLines(5);
snackbar.show();
}
Upvotes: 2
Reputation: 116040
A way to do it which won't crash in case things change on newer versions of the library :
Snackbar.make(...).setAction(...) {
...
}.apply {
(view.findViewById<View?>(R.id.snackbar_text) as? TextView?)?.setSingleLine(false)
}.show()
And a way to do it without having ids being used, setting all TextViews in the Snackbar to have unlimited multi-lines :
@UiThread
fun setAllTextViewsToHaveInfiniteLinesCount(view: View) {
when (view) {
is TextView -> view.setSingleLine(false)
is ViewGroup -> for (child in view.children)
setAllTextViewsToHaveInfiniteLinesCount(child)
}
}
Snackbar.make(...).setAction(...) {
...
}.apply {
setAllTextViewsToHaveInfiniteLinesCount(view)
}.show()
The same function in Java:
@UiThread
public static void setAllTextViewsToHaveInfiniteLines(@Nullable final View view) {
if (view == null)
return;
if (view instanceof TextView)
((TextView) view).setSingleLine(false);
else if (view instanceof ViewGroup)
for (Iterator<View> iterator = ViewGroupKt.getChildren((ViewGroup) view).iterator(); iterator.hasNext(); )
setAllTextViewsToHaveInfiniteLines(iterator.next());
}
Upvotes: 1
Reputation: 6454
For Material Design, the reference is com.google.android.material.R.id.snackbar_text
val snack = Snackbar.make(myView, R.string.myLongText, Snackbar.LENGTH_INDEFINITE).apply {
view.findViewById<TextView>(com.google.android.material.R.id.snackbar_text).maxLines = 10
}
snack.show()
Upvotes: 6
Reputation: 21
this works for me
Snackbar snackbar = Snackbar.make(mView, "Your text string", Snackbar.LENGTH_INDEFINITE);
((TextView) snackbar.getView().findViewById(android.support.design.R.id.snackbar_text)).setSingleLine(false);
snackbar.show();
Upvotes: 2
Reputation: 1178
Instead of using setMaxLines, i use setSingleLine to make the textview wrap to its content.
String yourText = "First line\nSecond line\nThird line";
Snackbar snackbar = Snackbar.make(mView, yourText, Snackbar.LENGTH_SHORT);
TextView textView =
(TextView) snackbar.getView().findViewById(android.support.design.R.id.snackbar_text);
textView.setSingleLine(false);
snackbar.show();
Upvotes: 2
Reputation: 7077
Snackbar snackbar = Snackbar.make(view, "Text",Snackbar.LENGTH_LONG).setDuration(Snackbar.LENGTH_LONG);
View snackbarView = snackbar.getView();
TextView tv= (TextView) snackbarView.findViewById(android.support.design.R.id.snackbar_text);
tv.setMaxLines(3);
snackbar.show();
Upvotes: 15
Reputation: 1536
An alternative to the suggestions that involve hardcoding the resource ID for the textview contained by the snackbar is to iterate to find the TextView. It's safer long-term and lets you update the support library with minimal fear of the ID changing.
Example:
public static Snackbar getSnackbar(View rootView, String message, int duration) {
Snackbar snackbar = Snackbar.make(rootView, message, duration);
ViewGroup snackbarLayout = (ViewGroup) snackbar.getView();
TextView text = null;
for (int i = 0; i < snackbarLayout.getChildCount(); i++) {
View child = snackbarLayout.getChildAt(i);
// Since action is a button, and Button extends TextView,
// Need to make sure this is the message TextView, not the
// action Button view.
if(child instanceof TextView && !(child instanceof Button)) {
text = (TextView) child;
}
}
if (text != null) {
text.setMaxLines(3);
}
return snackbar;
}
Upvotes: 3
Reputation: 538
One can override the predefined value used for that in values.xml of the app
<integer name="design_snackbar_text_max_lines">5</integer>
This value is used by Snackbar by default.
Upvotes: 35
Reputation: 25534
Here is my finding on this :
Android does support multiline snackbars but it has a max limit of 2 lines which matches the design guideline where it says that the height of multiline snack bar should be 80dp (almost 2 lines)
To verify this, i used the cheesesquare android sample project. If i use following string:
Snackbar.make(view, "Random Text \n When a second snackbar is triggered while the first is displayed", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
In this case, i can see the multiline snack bar with the text of 2nd line, i.e. "When a second snackbar is triggered" but if i change this code to following implementation:
Snackbar.make(view, "Random Text \n When \n a second snackbar is triggered while the first is displayed", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
I can only see the "Random Text\nWhen ...". This means that design library is intentionally forcing the textview to be of max 2 lines.
Upvotes: 11