您好我正在尝试为View添加一个涟漪效果onClick方法，但这个没有用。我的所有物品都有身份证，但我不知道怎么称呼它
这是一个代码。
@Override
public void onClick(View v) {
int[] attrs = new int[]{R.attr.selectableItemBackground};
TypedArray typedArray = getActivity().obtainStyledAttributes(attrs);
int backgroundResource = typedArray.getResourceId(0, 0);
v.setBackgroundResource(backgroundResource);
switch (v.getId()) {
case ACTION_PLAY_ID:
Log.d(MainActivity.TAG, getString(R.string.detail_action_play));
v.setBackgroundResource(backgroundResource);
Intent intent = new Intent(getActivity(), PlayerActivity.class);
intent.putExtra(Video.VIDEO_TAG, videoModel);
startActivity(intent);
break;
case ACTION_BOOKMARK_ID:
if (bookmarked) {
v.setBackgroundResource(backgroundResource);
deleteFromBookmarks();
((ImageView) v).setImageDrawable(res.getDrawable(R.drawable.star_outline));
} else {
v.setBackgroundResource(backgroundResource);
addToBookmarks();
((ImageView) v).setImageDrawable(res.getDrawable(R.drawable.star));
}
break;
case ACTION_REMINDER_ID:
if (!isReminderSet) {
createReminderDialog((ImageView) v);
} else {
cancelReminder(liveTvProgram.getProgramId());
((ImageView) v).setImageDrawable(res.getDrawable(R.drawable.alarm));
}
break;
}
}
对于Lubomir
我有类似的东西，但也没有工作：
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
savedInstanceState) {
View view = inflater.inflate(R.layout.item_detail, container, false);
ButterKnife.bind(this, view);
View myView = view.findViewById(R.id.actions_container);
int[] attrs = new int[]{R.attr.selectableItemBackground};
TypedArray typedArray = getActivity().obtainStyledAttributes(attrs);
int backgroundResource = typedArray.getResourceId(0, 0);
myView.setBackgroundResource(backgroundResource);
loadImage();
init();
return view;
}
ImageViews（actionbuttons）正在java中为LinearLayout actions_container创建
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/header_image"
android:layout_width="250dp"
android:layout_height="250dp"
android:layout_alignParentLeft="true"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="@dimen/detail_image_1_state"
android:elevation="8dp"/>
<RelativeLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="@dimen/detail_bottom_margin"
android:layout_marginTop="@dimen/detail_top_margin"
android:background="@color/primary_color">
<LinearLayout
android:id="@+id/actions_container"
android:layout_width="match_parent"
android:layout_height="@dimen/detail_actions_height"
android:layout_alignParentTop="true"
android:background="@drawable/ripple_effect_image"
android:elevation="2dp"
android:orientation="horizontal"
android:paddingLeft="300dp"
android:paddingStart="300dp"/>
<LinearLayout
android:id="@+id/content_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/actions_container"
android:orientation="vertical"
android:paddingLeft="300dp"
android:paddingStart="300dp">
<TextView
android:id="@+id/title"
style="@style/TextTitleStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:id="@+id/subtitle"
style="@style/TextSubtitleStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"/>
<TextView
android:id="@+id/duration"
style="@style/TextSubtitleStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:id="@+id/season"
style="@style/TextDescriptionStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"/>
<TextView
android:id="@+id/episode"
style="@style/TextDescriptionStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"/>
<TextView
android:id="@+id/description"
style="@style/TextDescriptionStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="7"/>
</LinearLayout>
<FrameLayout
android:id="@+id/recommended_frame"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_alignParentBottom="true">
<android.support.v17.leanback.widget.HorizontalGridView
android:id="@+id/recommendation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipChildren="false"
android:clipToPadding="false"
android:paddingLeft="10dp"
android:paddingRight="10dp"/>
</FrameLayout>
<TextView
android:id="@+id/recommended_text"
style="@style/TextHeaderStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@id/recommended_frame"
android:text="@string/related_programs"/>
</RelativeLayout>
</RelativeLayout>
我的xml涟漪效果文件也是这样的：
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="@color/dark_primary_color">
<item>
<color android:color="@color/dark_primary_color" />
</item>
<item android:id="@android:id/mask">
<shape android:shape="rectangle">
<solid android:color="?android:colorAccent" />
</shape>
</item>
</ripple>
可点击的视图
一般情况下，常规按钮的涟漪效果默认在API 21中有效，对于其他可触摸视图，可以通过指定
android:background="?android:attr/selectableItemBackground"
在代码中：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_layout);
View myView = findViewById(R.id.myView);
int[] attrs = new int[]{R.attr.selectableItemBackground};
TypedArray typedArray = getActivity().obtainStyledAttributes(attrs);
int backgroundResource = typedArray.getResourceId(0, 0);
myView.setBackgroundResource(backgroundResource);
}
创建涟漪背景
view_background.xml
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="@color/blue" >
<item android:drawable="@drawable/view_normal">
</item>
</ripple>
view_noraml.xml //这是您正常查看的方式
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<corners
android:radius="@dimen/button_corner"/>
<solid
android:color="@android:color/transparent"/>
<stroke
android:width="0.5dp"
android:color="@color/white"/>
</shape>
现在将view_background设置为您的视图
例
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="120dp"
android:foreground="@drawable/view_background"
android:clickable="true"
android:focusable="true"
>
<ImageView
android:id="@+id/grid_item_imageView"
android:layout_width="match_parent"
android:layout_height="120dp"
android:layout_gravity="center"
android:scaleType="centerInside"
/>
</FrameLayout>
你可以加：
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:background="@drawable/ripple"/>
解决方案对我来说很简单。
这是涟漪效应：
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="#BFB3F7">
<item android:id="@android:id/mask">
<shape android:shape="oval">
<solid android:color="@color/button_background_color" />
</shape>
</item>
</ripple>
然后在类上我需要搜索函数setBackground
然后我需要声明一个drawable项目。这样的事情：
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
v.setBackground(res.getDrawable(R.drawable.ripple_effect_for_buttons));
scrollContainer(false);
} else {
v.setBackground(null);
if (recommendation.getFocusedChild() != null) {
scrollContainer(true);
}
}
}
和YUPII一起工作
如Lubomir Babev's answer所述，添加android:background="?android:attr/selectableItemBackground"就可以了。
但是，如果您的视图已有背景，则可以在android:foreground属性上使用相同的内容：
android:background="@color/anyColor"
android:foreground="?android:attr/selectableItemBackground"
android:foreground仅受API 23+支持。