问题

I created a button and I want to add ripple effect to that button!

I created a button bg XML file: (bg_btn.xml)

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<gradient android:startColor="#FFFFFF" android:endColor="#00FF00" android:angle="270" />
<corners android:radius="3dp" />
<stroke android:width="5px" android:color="#000000" />
</shape>

And this is my ripple effect file: (ripple_bg.xml)

<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:color="#f816a463"
    tools:targetApi="lollipop">
    <item android:id="@android:id/mask">
        <shape android:shape="rectangle">
            <solid android:color="#f816a463" />
        </shape>
    </item>
</ripple>

And This is my Button which I want to add ripple effect:

<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="@+id/button"
android:layout_centerHorizontal="true"
android:layout_marginTop="173dp"
android:textColor="#fff"
android:background="@drawable/ripple_bg"
android:clickable="true" />

But after adding ripple effect button background is transparent, and button display only when clicked, like this:

Before Click

On Click

But I need both button background color and ripple effect, I found some of this code in different blogs of Stack Overflow, but still it is not working!

回答1:

Here is another drawable xml for those who want to add all together gradient background, corner radius and ripple effect:

<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="@color/colorPrimaryDark">
    <item android:id="@android:id/mask">
        <shape android:shape="rectangle">
            <solid android:color="@color/colorPrimaryDark" />
            <corners android:radius="@dimen/button_radius_large" />
        </shape>
    </item>

    <item android:id="@android:id/background">
        <shape android:shape="rectangle">
            <gradient
                android:angle="90"
                android:endColor="@color/colorPrimaryLight"
                android:startColor="@color/colorPrimary"
                android:type="linear" />
            <corners android:radius="@dimen/button_radius_large" />
        </shape>
    </item>
</ripple>

Add this to the background of your button.

<Button
    ...
    android:background="@drawable/button_background" />

回答2:

add the "?attr/selectableItemBackground" to your view's foreground attribute if it already has a background along with android:clickable="true"

回答3:

Add Ripple Effect/Animation to a Android Button

Just replace your button background attribute with android:background="?attr/selectableItemBackground" and your code looks like this.

      <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?attr/selectableItemBackground"
        android:text="New Button" />

Another Way to Add Ripple Effect/Animation to an Android Button

Using this method, you can customize ripple effect color. First, you have to create a xml file in your drawable resource directory. Create a ripple_effect.xml file and add following code. res/drawable/ripple_effect.xml

<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:color="#f816a463"
    tools:targetApi="lollipop">
    <item android:id="@android:id/mask">
        <shape android:shape="rectangle">
            <solid android:color="#f816a463" />
        </shape>
    </item>
</ripple>

And set background of button to above drawable resource file

<Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/ripple_effect"
    android:padding="16dp"
    android:text="New Button" />

回答4:

In addition to Jigar Patel's solution, add this to the ripple.xml to avoid transparent background of buttons.

<item
    android:id="@android:id/background"
    android:drawable="@color/your-color" />

Complete xml :

<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:color="@color/your-color"
    tools:targetApi="lollipop">
    <item android:id="@android:id/mask">
        <shape android:shape="rectangle">
            <solid android:color="@color/your-color" />
        </shape>
    </item>
    <item
        android:id="@android:id/background"
        android:drawable="@color/your-color" />
</ripple>

Use this ripple.xml as background in your button :

android:background="@drawable/ripple"

回答5:

When the button has a background from the drawable, we can add ripple effect to the foreground parameter.. Check below code its working for my button with a different background

    <Button
    android:layout_width="wrap_content"
    android:layout_height="40dp"
    android:gravity="center"
    android:layout_centerHorizontal="true"                                                             
    android:background="@drawable/shape_login_button"
    android:foreground="?attr/selectableItemBackgroundBorderless"
    android:clickable="true"
    android:text="@string/action_button_login"
     />

Add below parameter for the ripple effect

   android:foreground="?attr/selectableItemBackgroundBorderless"
   android:clickable="true"

For reference refer below link https://jascode.wordpress.com/2017/11/11/how-to-add-ripple-effect-to-an-android-app/

回答6:

AppCompat v7+

If you don't prefix with ?android: your app will crash.

You should use "?android:attr/selectableItemBackground" or "?android:attr/selectableItemBackgroundBorderless", based on your preference. I prefer Borderless.

You can put it either in android:background or android:foreground to keep existing properties.

The element must have android:clickable="true" and android:focusable="true" in order for this to work, but many elements, such as buttons, have them true by default.

<Button
    ...
    android:background="@color/white"
    android:foreground="?android:attr/selectableItemBackgroundBorderless"
/>
<TextView
    ...
    android:background="?android:attr/selectableItemBackgroundBorderless"
    android:clickable="true"
    android:focusable="true"
/>

Programmatically (Java)

TypedValue value = new TypedValue();
context.getTheme().resolveAttribute(android.R.attr.selectableItemBackground, value, true);
myView.setBackgroundResource(value.resourceId);
myView.setFocusable(true); // If needed for view type

Programmatically (Kotlin)

val value = TypedValue()
context.theme.resolveAttribute(android.R.attr.selectableItemBackground, value, true);
myView.setBackgroundResource(value.resourceId)
myView.setFocusable(true) // If needed for view type

回答7:

Adding foreground and clickable attributes worked for me.

<Button
    ... 
    android:background="@color/your_color"
    android:foreground="?attr/selectableItemBackgroundBorderless"
    android:clickable="true" />

回答8:

When you use android:background, you are replacing much of the styling and look and feel of a button with a blank color.

Update: As of the version 23.0.0 release of AppCompat, there is a new Widget.AppCompat.Button.A colored style which uses your theme's colorButtonNormal for the disabled color and colorAccent for the enabled color.

This allows you apply it to your button directly via

<Button
 ...
style="@style/Widget.AppCompat.Button.Colored" />

You can use a drawable in your v21 directory for your background such as:

<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="?attr/colorControlHighlight">
<item android:drawable="?attr/colorPrimary"/>
</ripple>

This will ensure your background color is ?attr/colorPrimary and has the default ripple animation using the default ?attr/colorControlHighlight (which you can also set in your theme if you'd like).

Note: you'll have to create a custom selector for less than v21:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/primaryPressed"            android:state_pressed="true"/>
<item android:drawable="@color/primaryFocused" android:state_focused="true"/>
<item android:drawable="@color/primary"/>
</selector>

回答9:

In addition to Sudheesh R

Add Ripple Effect/Animation to a Android Button with button rectangle shape with corner

Create xml file res/drawable/your_file_name.xml

<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:color="@color/colorWhite"
    tools:targetApi="lollipop">
    <item android:id="@android:id/mask">
        <shape android:shape="rectangle">
            <solid android:color="@color/colorPrimaryDark" />
            <corners android:radius="50dp" />
        </shape>
    </item>

    <item android:id="@android:id/background">
        <shape android:shape="rectangle">
            <gradient
                android:angle="90"
                android:endColor="@color/colorAccent"
                android:startColor="@color/colorPrimary"
                android:type="linear" />
            <corners android:radius="50dp" />
        </shape>
    </item>
</ripple>

回答10:

try this

<Button
            android:id="@+id/btn_location"
            android:layout_width="121dp"
            android:layout_height="38dp"
            android:layout_gravity="center"
            android:layout_marginBottom="24dp"
            android:layout_marginTop="24dp"
            android:foreground="?attr/selectableItemBackgroundBorderless"
            android:clickable="true"
            android:background="@drawable/btn_corner"
            android:gravity="center_vertical|center_horizontal"
            android:paddingLeft="13dp"
            android:paddingRight="13dp"
            android:text="Save"
            android:textColor="@color/color_white" />

回答11:

Just use :

android:backgroundTint="#f816a463"

Instead of:

android:background="#f816a463"

Don't forget to change your Button to android.support.v7.widget.AppCompatButton

回答12:

An alternative solution to using the <ripple> tag (which I personally prefer not to do, because the colors are not "default"), is the following:

Create a drawable for the button background, and include <item android:drawable="?attr/selectableItemBackground"> in the <layer-list>

Then (and I think this is the important part) programmatically set backgroundResource(R.drawable.custom_button) on your button instance.

Activity/Fragment

Button btn_temp = view.findViewById(R.id.btn_temp);
btn_temp.setBackgroundResource(R.drawable.custom_button);

Layout

<Button
    android:id="@+id/btn_temp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/custom_button"
    android:text="Test" />

custom_button.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="@android:color/white" />
            <corners android:radius="10dp" />
        </shape>
    </item>
    <item android:drawable="?attr/selectableItemBackground" />
</layer-list>

来源：https://stackoverflow.com/questions/40008609/add-ripple-effect-to-my-button-with-button-background-color

标签

android

android-layout

android-drawable

rippledrawable

Add ripple effect to my button with button background color?

问题