how to create ripple effect for pre-lollipop

问题

How to apply ripple effect like this

i have put the dependencies in app/build.gradle

app/build.gradle

dependencies {
    compile \'com.github.traex.rippleeffect:library:1.3\'
}

build.gradle

allprojects{
    repositories{
        jcenter()
        maven(url \"https://jitpack.io\" }

XML file:

<com.andexert.library.RippleView
        android:id=\"@+id/rect1\"
        android:layout_width=\"match_parent\"
        android:layout_height=\"wrap_content\">
  <Button
      android:id=\"@+id/enterButton\"
      android:layout_width=\"match_parent\"
      android:layout_height=\"wrap_content\"
      android:text=\"Save your user name\" />
 </com.andexert.library.RippleView>

Java class file

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.save_user);
    editText=(EditText) findViewById(R.id.userNameEditText);
    button=(Button) findViewById(R.id.enterButton);

    sharedPreferences=getSharedPreferences(SHARED_NAME_STRING, MODE_PRIVATE);
    String userNameString=sharedPreferences.getString(USER_NAME_STRING, \"\");

    editText.setText(userNameString);

    button.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            String string=editText.getText().toString();
            Intent intent=new Intent(SaveUser.this, MainActivity.class);
            intent.putExtra(\"user\", string);

            SharedPreferences.Editor editor=sharedPreferences.edit();
            editor.putString(USER_NAME_STRING, string);
            editor.commit();

            startActivity(intent);

        }
    });
}

it works but my problem is another activity opens before the ripple effect completes and when I press back button the remaining ripple completes. how can I solve it??

回答1:

You could try this library balysv/material-ripple.

In your gradle, add this line :

compile 'com.balysv:material-ripple:1.0.2'

And this is how to do it :

<com.balysv.materialripple.MaterialRippleLayout
android:id="@+id/ripple"
android:layout_width="match_parent"
android:layout_height="wrap_content">

<Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:text="Button inside a ripple"/>
</com.balysv.materialripple.MaterialRippleLayout>

回答2:

For lollipop(API>21) make file as btn_ripple_effect.xml in drawable-v21 and put below code

 <?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="?android:colorAccent"
        tools:targetApi="lollipop">
        <item android:drawable="@color/cancel_btn_clr" /> <!-- default -->
        <item android:id="@android:id/mask">
            <shape android:shape="rectangle">
                <solid android:color="?android:colorAccent" />
            </shape>
        </item>
    </ripple>

For pre lollipop (API<21)make file as btn_ripple_effect.xml in drawable folder and put below code

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true">
        <shape>
            <solid android:color="@color/colorAccent"></solid>
        </shape>
    </item>

    <item>
        <shape>
            <solid android:color="@color/cancel_btn_clr"></solid>
        </shape>
    </item>
</selector>

Create button as below

<Button
                    android:id="@+id/button3"
                    style="@style/cancel_btn_style"
                    android:layout_marginLeft="50dp"
                    android:text="Cancel"
                    />

Add this in your style.xml

          <style name="cancel_btn_style" parent="Theme.AppCompat">
<item name="android:textSize">15sp</item>
<item name="android:textColor">#ffffff</item>
<item name="android:layout_height">36dp</item>
<item name="android:layout_width">90dp</item>
<item name="android:background">@drawable/btn_ripple_effect</item>

回答3:

For lollipop(API>21) make file as btn_ripple_effect.xml in drawable-v21 and put below code

<?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="#f8c7c9c8"
    tools:targetApi="lollipop">

    <item android:id="@android:id/mask">

        <shape android:shape="oval">
            <corners android:radius="@dimen/dp10" />
            <solid android:color="#f8ced6d2" />

        </shape>
    </item>
</ripple>

For pre lollipop (API<21)make file as btn_ripple_effect.xml in drawable folder and put below code

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

    <item android:state_pressed="true">
        <shape android:shape="oval">
            <solid android:color="#f8ced6d2"/>
        </shape>
    </item>

    <item>
        <shape>
            <solid android:color="@color/transparent"/>
        </shape>
    </item>
</selector>

use it on imageview like this

<ImageView
  android:id="@+id/imageViewOffer"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_centerVertical="true"
  android:background="@drawable/btn_ripple_effect"
  android:src="@mipmap/ic_offers"/>

回答4:

I know this is old but you can perform your action in onRippleCompleteListener provided by the library. Something like :

rippleView.setOnRippleCompleteListener(new RippleView.OnRippleCompleteListener() {

@Override
public void onComplete(RippleView rippleView) {
//Your code here...
}
});

Hope this helps. :)

回答5:

Use the appcompat libary

com.android.support:appcompat-v7:22.1.1

extend "Base.TextAppearance.AppCompat.Button"

<style name="BrowseContentButton" parent="Base.TextAppearance.AppCompat.Button">
    <item name="android:textColor">@color/grey_0</item>
    <item name="android:layout_width">match_parent</item>
    <item name="android:layout_height">48dp</item>
</style>

apply the style

 <Button
        android:id="@+id/browseMultimedia"
        style="@style/BrowseContentButton"
        android:layout_below="@id/browseGuidelines"
        android:layout_toRightOf="@+id/divider"
        android:text="@string/browse_multimedia"
        />

来源：https://stackoverflow.com/questions/30760822/how-to-create-ripple-effect-for-pre-lollipop