Android 在使用recyclerView填充的cardView中为按钮添加clickListner
我有一张卡片 卡片内容.xmlAndroid 在使用recyclerView填充的cardView中为按钮添加clickListner,android,ontouchlistener,onitemclicklistener,android-recyclerview,android-cardview,Android,Ontouchlistener,Onitemclicklistener,Android Recyclerview,Android Cardview,我有一张卡片 卡片内容.xml <?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"> <android.support.v7.widget.Card
<?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">
<android.support.v7.widget.CardView android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_marginTop="10dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:id="@+id/card_view">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffa3a4a6">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/card_text"
android:layout_gravity="center"
android:gravity="center"
android:text="B.E"
android:layout_centerInParent="true"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:id="@+id/button1"
android:layout_toLeftOf="@+id/view"
android:layout_alignParentLeft="true"
android:text="2010"
android:textColor="#000000"
android:background="@android:color/transparent"
/>
<View
android:layout_width="2dp"
android:layout_height="@dimen/abc_action_button_min_height_material"
android:layout_centerHorizontal="true"
android:id="@+id/view"
android:background="@android:color/black"
android:layout_alignParentBottom="true"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button2"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_toRightOf="@+id/view"
android:background="@android:color/transparent"
android:textColor="@android:color/black"
android:text="2014"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</RelativeLayout>
MainActivity.class
public class MainActivity extends ActionBarActivity {
RecyclerView recyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
List<String> list=new ArrayList<String>();
list.add("Hello");
list.add("Hello World");
list.add("Hello World Beings");
recyclerView=(RecyclerView)findViewById(R.id.recycler_view);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager layoutManager=new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
RecyclerView.Adapter adapter=new MyAdapter(list);
recyclerView.setAdapter(adapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
List<String> list;
public MyAdapter(List<String> list){
this.list=list;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.card_contents,viewGroup,false);
return new MyViewHolder(v);
}
@Override
public void onBindViewHolder(MyViewHolder myViewHolder, int i) {
myViewHolder.textView.setText(list.get(i));
}
@Override
public int getItemCount() {
return list.size();
}
public static class MyViewHolder extends RecyclerView.ViewHolder{
TextView textView;
MyViewHolder(View view){
super(view);
this.textView= (TextView) view.findViewById(R.id.card_text);
}
}
}
公共类MainActivity扩展了ActionBarActivity{
回收视图回收视图;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
列表=新的ArrayList();
添加(“你好”);
添加(“你好世界”);
添加(“你好,世界众生”);
recyclerView=(recyclerView)findViewById(R.id.recycler\u视图);
setItemAnimator(新的DefaultItemAnimator());
recyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager LayoutManager=新的LinearLayoutManager(此);
recyclerView.setLayoutManager(layoutManager);
RecyclerView.Adapter=新的MyAdapter(列表);
recyclerView.setAdapter(适配器);
}
@凌驾
公共布尔onCreateOptions菜单(菜单){
//为菜单充气;这会将项目添加到操作栏(如果存在)。
getMenuInflater().充气(右菜单菜单菜单主菜单);
返回true;
}
@凌驾
公共布尔值onOptionsItemSelected(菜单项项){
//处理操作栏项目单击此处。操作栏将
//自动处理Home/Up按钮上的点击,只要
//在AndroidManifest.xml中指定父活动时。
int id=item.getItemId();
//noinspection SimplifiableIf语句
if(id==R.id.action\u设置){
返回true;
}
返回super.onOptionsItemSelected(项目);
}
}
MyAdapter.class
public class MainActivity extends ActionBarActivity {
RecyclerView recyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
List<String> list=new ArrayList<String>();
list.add("Hello");
list.add("Hello World");
list.add("Hello World Beings");
recyclerView=(RecyclerView)findViewById(R.id.recycler_view);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager layoutManager=new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
RecyclerView.Adapter adapter=new MyAdapter(list);
recyclerView.setAdapter(adapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
List<String> list;
public MyAdapter(List<String> list){
this.list=list;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.card_contents,viewGroup,false);
return new MyViewHolder(v);
}
@Override
public void onBindViewHolder(MyViewHolder myViewHolder, int i) {
myViewHolder.textView.setText(list.get(i));
}
@Override
public int getItemCount() {
return list.size();
}
public static class MyViewHolder extends RecyclerView.ViewHolder{
TextView textView;
MyViewHolder(View view){
super(view);
this.textView= (TextView) view.findViewById(R.id.card_text);
}
}
}
公共类MyAdapter扩展了RecyclerView.Adapter{
名单;
公共MyAdapter(列表){
this.list=list;
}
@凌驾
公共MyViewHolder onCreateViewHolder(视图组视图组,int i){
视图v=LayoutInflater.from(viewGroup.getContext()).flate(R.layout.card_内容,viewGroup,false);
返回新的MyViewHolder(v);
}
@凌驾
BindViewHolder上的公共无效(MyViewHolder MyViewHolder,int i){
myViewHolder.textView.setText(list.get(i));
}
@凌驾
public int getItemCount(){
返回list.size();
}
公共静态类MyViewHolder扩展了RecyclerView.ViewHolder{
文本视图文本视图;
MyViewHolder(视图){
超级(视图);
this.textView=(textView)view.findViewById(R.id.card\u text);
}
}
}
实际上,我想为卡中的按钮设置click listener,并根据按下的按钮和按下的卡启动新活动。有没有办法做到这一点?我四处查看了一下,但没有找到任何关于设置cardView中项目的点击侦听器的答案。我是android新手,希望您能提供帮助。提前谢谢
在使用
回收视图
将单击事件添加到RecyclerView
中的按钮,如下所示:
1.从xml中获取按钮,方法与在MyViewHolder
类中对TextView
执行相同:
public static class MyViewHolder extends RecyclerView.ViewHolder{
TextView textView;
Button btnButton1;
MyViewHolder(View view){
super(view);
this.textView= (TextView) view.findViewById(R.id.card_text);
this.btnButton1= (Button) view.findViewById(R.id.button1);
... do same for other Button
}
}
2.添加setOnClickListener
方法,用于onBindViewHolder中的按钮
方法:
@Override
public void onBindViewHolder(MyViewHolder myViewHolder, int i){
myViewHolder.textView.setText(list.get(i));
myViewHolder.btnButton1.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
/// button click event
}
});
}
在CustomAdapter中的onBindViewHolder方法上定义onClick侦听器。假设您有:
<android.support.v7.widget.CardView
android:id="@+id/cv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:elevation="4dp"
app:cardCornerRadius="2dp">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="16dp">
<TextView
android:id="@+id/listText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:padding="8dp"
android:text="New Text" />
<ImageButton
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/listText"
android:layout_alignParentRight="true"
android:onClick="onClickBotonBorrar"
android:background="?android:selectableItemBackground"
android:src="@drawable/ic_action_borrar" />
</RelativeLayout>
</android.support.v7.widget.CardView>
建议不要将click事件放在适配器内,而是放在活动内
注意:按钮类似,另一种方法是使用界面 1)创建一个接口
public interface ItemClickListener{
public void startSecondActivity(int index);
public void startThirdActivity(int index);
}
public class MainActivity extends AppcompatActivity implements ItemClickListener {
.........
public void startSecondActivity(int index){
Intent i = new Intent(MainActivity.this, SecondActivity.class);
startActivity(i);
}
public void startThirdActivity(int index){
Intent i = new Intent(MainActivity.this, ThirdActivity.class);
startActivity(i);
}
}
MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder>{
private ItemListener listener;
public MyAdapter(Context context){
listener = (ItemListener)context;
}
Override
public void onBindViewHolder(MyViewHolder myViewHolder, int position){
myViewHolder.btnButton1.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
listener.startSecondActivity(position)
}
});
myViewHolder.btnButton2.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
listener.startThirdActivity(position)
}
});
}
}
2)在活动中实施界面
public interface ItemClickListener{
public void startSecondActivity(int index);
public void startThirdActivity(int index);
}
public class MainActivity extends AppcompatActivity implements ItemClickListener {
.........
public void startSecondActivity(int index){
Intent i = new Intent(MainActivity.this, SecondActivity.class);
startActivity(i);
}
public void startThirdActivity(int index){
Intent i = new Intent(MainActivity.this, ThirdActivity.class);
startActivity(i);
}
}
MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder>{
private ItemListener listener;
public MyAdapter(Context context){
listener = (ItemListener)context;
}
Override
public void onBindViewHolder(MyViewHolder myViewHolder, int position){
myViewHolder.btnButton1.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
listener.startSecondActivity(position)
}
});
myViewHolder.btnButton2.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
listener.startThirdActivity(position)
}
});
}
}
3)在RecycleServiceAdapter中使用ItemListener
public interface ItemClickListener{
public void startSecondActivity(int index);
public void startThirdActivity(int index);
}
public class MainActivity extends AppcompatActivity implements ItemClickListener {
.........
public void startSecondActivity(int index){
Intent i = new Intent(MainActivity.this, SecondActivity.class);
startActivity(i);
}
public void startThirdActivity(int index){
Intent i = new Intent(MainActivity.this, ThirdActivity.class);
startActivity(i);
}
}
MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder>{
private ItemListener listener;
public MyAdapter(Context context){
listener = (ItemListener)context;
}
Override
public void onBindViewHolder(MyViewHolder myViewHolder, int position){
myViewHolder.btnButton1.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
listener.startSecondActivity(position)
}
});
myViewHolder.btnButton2.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
listener.startThirdActivity(position)
}
});
}
}
MyAdapter扩展了RecyclerView.Adapter{
私有项侦听器;
公共MyAdapter(上下文){
listener=(ItemListener)上下文;
}
推翻
BindViewHolder上的公共无效(MyViewHolder MyViewHolder,int位置){
myViewHolder.btnButton1.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
listener.startSecondActivity(位置)
}
});
myViewHolder.btnButton2.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
listener.startThirdActivity(位置)
}
});
}
}
我还想使用同一适配器来填充其他仅包含文本视图的回收器视图。谢谢。但是如果我想使用同一适配器来填充仅包含文本的正常回收器视图,该怎么办views@user3359069:我认为通常情况下这是不可能的,但您可以通过使用if-else条件、显示/隐藏视图来实现,这是一种无效的方式。根据我的建议,为其他行设计创建一个单独的适配器,通过该适配器,您将开发松散耦合的独立模块。ThanksHow我知道在哪个recyclerview中按下了按钮吗?@TomasK您可以在onBindViewHolder方法中将i存储在最终变量(如最终整数位置)中,然后在onClick中使用它方法。@ρцσρѕρєK我有一个回收器视图,其中两个卡片视图有两个按钮。如何更改一个卡片视图按钮的文本而不影响另一个按钮。我还发布了一个问题。如果可以,请提供帮助。这是问题的链接