Is there any method to change the layout of a snackBar to custom View?
Now it comes black and we can change the background color. But I don't know the right way to inflate a new layout and making it as snackBars background?
Thanks...
The Snackbar does not allow you to set a custom layout. However, as Primoz990 suggested you can get the Snackbar's View. The getView function returns the Snackbar.SnackbarLayout, which is a horizontal LinearLayout object whose children are a TextView and a Button. To add your own View to the Snackbar, you just need to hide the TextView, and add your View to the Snackbar.SnackbarLayout.
// Create the Snackbar Snackbar snackbar = Snackbar.make(containerLayout, "", Snackbar.LENGTH_LONG); // Get the Snackbar's layout view Snackbar.SnackbarLayout layout = (Snackbar.SnackbarLayout) snackbar.getView(); // Hide the text TextView textView = (TextView) layout.findViewById(android.support.design.R.id.snackbar_text); textView.setVisibility(View.INVISIBLE); // Inflate our custom view View snackView = mInflater.inflate(R.layout.my_snackbar, null); // Configure the view ImageView imageView = (ImageView) snackView.findViewById(R.id.image); imageView.setImageBitmap(image); TextView textViewTop = (TextView) snackView.findViewById(R.id.text); textViewTop.setText(text); textViewTop.setTextColor(Color.WHITE); //If the view is not covering the whole snackbar layout, add this line layout.setPadding(0,0,0,0); // Add the view to the Snackbar's layout layout.addView(snackView, 0); // Show the Snackbar snackbar.show();
It is possible starting from 25.1.0 revision of Android Support Library
I. Declare custom layout in your values/layout folder.
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <Button android:id="@+id/snackbar_action" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="@dimen/design_snackbar_extra_spacing_horizontal" android:layout_marginStart="@dimen/design_snackbar_extra_spacing_horizontal" android:layout_gravity="center_vertical|right|end" android:paddingTop="@dimen/design_snackbar_padding_vertical" android:paddingBottom="@dimen/design_snackbar_padding_vertical" android:paddingLeft="@dimen/design_snackbar_padding_horizontal" android:paddingRight="@dimen/design_snackbar_padding_horizontal" android:visibility="gone" android:textColor="?attr/colorAccent" style="?attr/borderlessButtonStyle"/> <TextView android:gravity="center_vertical|right" android:id="@+id/snackbar_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:paddingTop="@dimen/design_snackbar_padding_vertical" android:paddingBottom="@dimen/design_snackbar_padding_vertical" android:paddingLeft="@dimen/design_snackbar_padding_horizontal" android:paddingRight="@dimen/design_snackbar_padding_horizontal" android:textAppearance="@style/TextAppearance.Design.Snackbar.Message" android:maxLines="@integer/design_snackbar_text_max_lines" android:layout_gravity="center_vertical|left|start" android:ellipsize="end"/> </LinearLayout>
Hints:
- Use
@dimen/design_snackbar
values to match material design guidelines. - Use
?attr/colorAccent
to apply your Application Theme changes to Snackbar.
II. Extend BaseTransientBottomBar class.
public class final CustomSnackbar extends BaseTransientBottomBar<CustomSnackbar> { /** * Constructor for the transient bottom bar. * * @param parent The parent for this transient bottom bar. * @param content The content view for this transient bottom bar. * @param contentViewCallback The content view callback for this transient bottom bar. */ private CustomSnackbar(ViewGroup parent, View content, ContentViewCallback contentViewCallback) { super(parent, content, contentViewCallback); } }
III. Add BaseTransientBottomBar.ContentViewCallback
public class final CustomSnackbar ...{ ... private static class ContentViewCallback implements BaseTransientBottomBar.ContentViewCallback { // view inflated from custom layout private View content; public ContentViewCallback(View content) { this.content = content; } @Override public void animateContentIn(int delay, int duration) { // add custom *in animations for your views // e.g. original snackbar uses alpha animation, from 0 to 1 ViewCompat.setScaleY(content, 0f); ViewCompat.animate(content) .scaleY(1f).setDuration(duration) .setStartDelay(delay); } @Override public void animateContentOut(int delay, int duration) { // add custom *out animations for your views // e.g. original snackbar uses alpha animation, from 1 to 0 ViewCompat.setScaleY(content, 1f); ViewCompat.animate(content) .scaleY(0f) .setDuration(duration) .setStartDelay(delay); } } }
IV. Add method to create Snackbar with custom layout and methods to fill it.
public class final CustomSnackbar ...{ ... public static CustomSnackbar make(ViewGroup parent, @Duration int duration) { // inflate custom layout LayoutInflater inflater = LayoutInflater.from(parent.getContext()); View content = inflater.inflate(R.layout.snackbar_view, parent, false); // create snackbar with custom view ContentViewCallback callback= new ContentViewCallback(content); CustomSnackbar customSnackbar = new CustomSnackbar(parent, content, callback); // Remove black background padding on left and right customSnackbar.getView().setPadding(0, 0, 0, 0); // set snackbar duration customSnackbar.setDuration(duration); return customSnackbar; } // set text in custom layout public CustomSnackbar setText(CharSequence text) { TextView textView = (TextView) getView().findViewById(R.id.snackbar_text); textView.setText(text); return this; } // set action in custom layout public CustomSnackbar setAction(CharSequence text, final OnClickListener listener) { Button actionView = (Button) getView().findViewById(R.id.snackbar_action); actionView.setText(text); actionView.setVisibility(View.VISIBLE); actionView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { listener.onClick(view); // Now dismiss the Snackbar dismiss(); } }); return this; } }
V. Create instance of CustomSnackbar
and call show()
method.
CustomSnackbar customSnackbar = CustomSnackbar.make(rooView, CustomSnackbar.LENGTH_INDEFINITE); customSnackbar.setText("No network connection!"); customSnackbar.setAction("Retry", new View.OnClickListener() { @Override public void onClick(View v) { // handle click here } }); customSnackbar.show();
See more about Snackbar and its customization at materialdoc.com
Full CustomSnackbar.class
code :
import android.support.annotation.NonNull; import android.support.design.widget.BaseTransientBottomBar; import android.support.v4.view.ViewCompat; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.TextView; public class CustomSnackbar extends BaseTransientBottomBar<CustomSnackbar> { /** * Constructor for the transient bottom bar. * * @param parent The parent for this transient bottom bar. * @param content The content view for this transient bottom bar. * @param callback The content view callback for this transient bottom bar. */ private CustomSnackbar(ViewGroup parent, View content, ContentViewCallback callback) { super(parent, content, callback); } public static CustomSnackbar make(@NonNull ViewGroup parent, @Duration int duration) { final LayoutInflater inflater = LayoutInflater.from(parent.getContext()); final View content = inflater.inflate(R.layout.snackbar_view, parent, false); final ContentViewCallback viewCallback = new ContentViewCallback(content); final CustomSnackbar customSnackbar = new CustomSnackbar(parent, content, viewCallback); customSnackbar.getView().setPadding(0, 0, 0, 0); customSnackbar.setDuration(duration); return customSnackbar; } public CustomSnackbar setText(CharSequence text) { TextView textView = (TextView) getView().findViewById(R.id.snackbar_text); textView.setText(text); return this; } public CustomSnackbar setAction(CharSequence text, final View.OnClickListener listener) { Button actionView = (Button) getView().findViewById(R.id.snackbar_action); actionView.setText(text); actionView.setVisibility(View.VISIBLE); actionView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { listener.onClick(view); // Now dismiss the Snackbar dismiss(); } }); return this; } private static class ContentViewCallback implements BaseTransientBottomBar.ContentViewCallback { private View content; public ContentViewCallback(View content) { this.content = content; } @Override public void animateContentIn(int delay, int duration) { ViewCompat.setScaleY(content, 0f); ViewCompat.animate(content).scaleY(1f).setDuration(duration).setStartDelay(delay); } @Override public void animateContentOut(int delay, int duration) { ViewCompat.setScaleY(content, 1f); ViewCompat.animate(content).scaleY(0f).setDuration(duration).setStartDelay(delay); } } }
The XML way:
The original layout xml file that is used for the Snackbar
is this file:
design_layout_snackbar_include.xml
:
<?xml version="1.0" encoding="utf-8"?> <merge xmlns:android="http://schemas.android.com/apk/res/android"> <TextView android:id="@+id/snackbar_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" ... android:ellipsize="end"/> <Button android:id="@+id/snackbar_action" android:layout_width="wrap_content" android:layout_height="wrap_content" android:visibility="gone" ... android:textColor="?attr/colorAccent" style="?attr/borderlessButtonStyle"/> </merge>
So in order to override this layout you should write your own layout with the same android:id
s as in this one and in your refs.xml
file you should add this line:
<resources xmlns:tools="http://schemas.android.com/tools"> .... <item name="design_layout_snackbar_include" tools:override="true" type="layout"> @layout/my_layout_snackbar </item> .... </resources>
The answer is: Don't customize the Snackbar. It should not contain any more elements than a short text and one action. See Google Material design guidelines.
UPDATE: If you anyway want to customize the Snackbar here is what I have implemented in my app:
//generate the snackbar Snackbar sb = Snackbar.make(rootView, snack.text, duration); //set te action button text color sb.setActionTextColor(mCurrentActivity.getResources().getColor(R.color.snack_text_action)); //Get the view of the snackbar View sbView = sb.getView(); //set background color sbView.setBackgroundColor(mCurrentActivity.getResources().getColor(backgroudResId)); //Get the textview of the snackbar text TextView textView = (TextView) sbView.findViewById(android.support.design.R.id.snackbar_text); //set text color textView.setTextColor(mCurrentActivity.getResources().getColor(R.color.snack_text)); //increase max lines of text in snackbar. default is 2. textView.setMaxLines(10);
I have never tried, but with getting the the root view of the Snackbar, you could programmatically add new views to the Snackbar.
private Snackbar showSnackbar(CoordinatorLayout coordinatorLayout, int duration) { // Create the Snackbar Snackbar snackbar = Snackbar.make(coordinatorLayout, "", duration); // 15 is margin from all the sides for snackbar int marginFromSides = 15; float height = 100; //inflate view View snackView = getLayoutInflater().inflate(R.layout.snackbar_layout, null); // White background snackbar.getView().setBackgroundColor(Color.WHITE); // for rounded edges snackbar.getView().setBackground(getResources().getDrawable(R.drawable.round_edges)); Snackbar.SnackbarLayout snackBarView = (Snackbar.SnackbarLayout) snackbar.getView(); FrameLayout.LayoutParams parentParams = (FrameLayout.LayoutParams) snackBarView.getLayoutParams(); parentParams.setMargins(marginFromSides, 0, marginFromSides, marginFromSides); parentParams.height = (int) height; parentParams.width = FrameLayout.LayoutParams.MATCH_PARENT; snackBarView.setLayoutParams(parentParams); snackBarView.addView(snackView, 0); return snackbar; }
In onCreate of the Activity:
CoordinatorLayout coordinatorLayout = findViewById(R.id.coordinator_layout); final Snackbar snackbar = showSnackbar(coordinatorLayout, Snackbar.LENGTH_LONG); snackbar.show(); View view = snackbar.getView(); TextView tv = (TextView) view.findViewById(R.id.snackbar_action); tv.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { snackbar.dismiss(); } });
I tried it and it works!
View custom = LayoutInflater.from(this).inflate(R.layout.custom_view, null); snackbar.getView().setPadding(0,0,0,0); ((ViewGroup) snackbar.getView()).removeAllViews(); ((ViewGroup) snackbar.getView()).addView(custom); TextView textView = custom.findViewById(R.id.text); View button = custom.findViewById(R.id.button); textView.setText("Your text here"); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // do something } });
Try the following code.
Snackbar snackbar = Snackbar.make(container, "No Internet Connection", Snackbar.LENGTH_LONG); View sbView = snackbar.getView(); sbView.setBackgroundColor(ContextCompat.getColor(this, R.color.colorPrimary)); snackbar.show();
Note:
container - parent view of layout.
To add to Yakiv Mospan's answer, to make your custom BaseTransientBottomBar
show from the bottom like a Snackbar
, copy this method from the Snackbar
class to find a suitable parent in for the BaseTransientBottomBar
constructor.
private static ViewGroup findSuitableParent(View view) { ViewGroup fallback = null; do { if (view instanceof CoordinatorLayout) { // We've found a CoordinatorLayout, use it return (ViewGroup) view; } else if (view instanceof FrameLayout) { if (view.getId() == android.R.id.content) { // If we've hit the decor content view, then we didn't find a CoL in the // hierarchy, so use it. return (ViewGroup) view; } else { // It's not the content view but we'll use it as our fallback fallback = (ViewGroup) view; } } if (view != null) { // Else, we will loop and crawl up the view hierarchy and try to find a parent final ViewParent parent = view.getParent(); view = parent instanceof View ? (View) parent : null; } } while (view != null); // If we reach here then we didn't find a CoL or a suitable content view so we'll fallback return fallback; }
You can try this library. This is a wrapper for android default snackbar. https://github.com/ChathuraHettiarachchi/CSnackBar
Snackbar.with(this,null) .type(Type.SUCCESS) .message("Profile updated successfully!") .duration(Duration.SHORT) .show();
or you can even use your own view,
View view = getLayoutInflater().inflate(R.layout.custom_view, null); Snackbar.with(this,null) .type(Type.UPDATE) .contentView(view, 76) .duration(Duration.SHORT) .show();
Currently only issue with custom layout is, we need to pass view height in dp as an input
来源:https://stackoverflow.com/questions/32453946/how-to-customize-snackbars-layout