Android 如何创建';模板&x27;是否在recyclerview中查看每个cardview?
我在回收视图中有一些卡片视图。当我点击其中一个,我希望它显示一个不同的布局 这是我点击每张卡片时应该拥有的“模板”Android 如何创建';模板&x27;是否在recyclerview中查看每个cardview?,android,android-fragments,Android,Android Fragments,我在回收视图中有一些卡片视图。当我点击其中一个,我希望它显示一个不同的布局 这是我点击每张卡片时应该拥有的“模板” <?xml version="1.0" encoding="utf-8"?> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/scrollview_sam"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/reading_bg"
android:fillViewport="true"
tools:context=".ScrollviewSam"
>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/imageView"
android:layout_width="200dp"
android:layout_height="188dp"
android:layout_marginStart="15dp"
android:layout_marginTop="56dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/sam" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:layout_marginTop="56dp"
android:fontFamily="@font/sackers_gothic_light"
android:text="@string/name"
android:textColor="@color/gray"
app:layout_constraintStart_toEndOf="@+id/imageView"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="17dp"
android:layout_marginTop="32dp"
android:fontFamily="@font/sackers_gothic_heavy"
android:text="@string/about"
android:textColor="@color/white"
android:textSize="35sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/imageView" />
<TextView
android:id="@+id/textView19"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="4dp"
android:fontFamily="@font/sackers_gothic_heavy"
android:text="@string/background"
android:textColor="@color/white"
android:textSize="35sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView5" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="17dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="17dp"
android:fontFamily="@font/sackers_gothic_light"
android:lineHeight="20dp"
android:paddingLeft="17sp"
android:paddingRight="17sp"
android:text="@string/about_sam"
android:textAlignment="textStart"
android:textColor="@color/white"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView4" />
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="17dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="17dp"
android:fontFamily="@font/sackers_gothic_light"
android:lineHeight="20sp"
android:paddingLeft="17sp"
android:paddingRight="17sp"
android:text="@string/background_sam1"
android:textColor="@color/white"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView19" />
<TextView
android:id="@+id/textView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="17dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="17dp"
android:fontFamily="@font/sackers_gothic_light"
android:lineHeight="20sp"
android:paddingLeft="17sp"
android:paddingRight="17sp"
android:text="@string/background_sam2"
android:textColor="@color/white"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView6" />
<TextView
android:id="@+id/textView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="56dp"
android:fontFamily="@font/sackers_gothic_heavy"
android:text="@string/name_sam"
android:textColor="@color/white"
app:layout_constraintStart_toEndOf="@+id/textView3"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginTop="88dp"
android:fontFamily="@font/sackers_gothic_heavy"
android:text="@string/gender_male"
android:textColor="@color/white"
app:layout_constraintStart_toEndOf="@+id/textView10"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:layout_marginTop="88dp"
android:fontFamily="@font/sackers_gothic_light"
android:text="@string/gender"
android:textColor="@color/gray"
app:layout_constraintStart_toEndOf="@+id/imageView"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:layout_marginTop="116dp"
android:fontFamily="@font/sackers_gothic_light"
android:text="@string/hair_color"
android:textColor="@color/gray"
app:layout_constraintStart_toEndOf="@+id/imageView"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView12"
android:layout_width="56dp"
android:layout_height="21dp"
android:layout_marginStart="8dp"
android:layout_marginTop="115dp"
android:fontFamily="@font/sackers_gothic_heavy"
android:text="@string/color_brown"
android:textColor="@color/white"
app:layout_constraintStart_toEndOf="@+id/textView11"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:layout_marginTop="148dp"
android:fontFamily="@font/sackers_gothic_light"
android:text="@string/eye_color"
android:textColor="@color/gray"
app:layout_constraintStart_toEndOf="@+id/imageView"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView15"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:layout_marginTop="176dp"
android:fontFamily="@font/sackers_gothic_light"
android:text="@string/cast"
android:textColor="@color/gray"
app:layout_constraintStart_toEndOf="@+id/imageView"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView16"
android:layout_width="101dp"
android:layout_height="39dp"
android:layout_marginStart="8dp"
android:layout_marginTop="176dp"
android:fontFamily="@font/sackers_gothic_heavy"
android:lineHeight="20dp"
android:text="@string/cast_norman"
android:textColor="@color/white"
app:layout_constraintStart_toEndOf="@+id/textView3"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView14"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="48dp"
android:layout_marginTop="148dp"
android:fontFamily="@font/sackers_gothic_heavy"
android:text="@string/color_blue"
android:textColor="@color/white"
app:layout_constraintStart_toEndOf="@+id/textView3"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView18"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="24dp"
android:layout_marginTop="224dp"
android:fontFamily="@font/sackers_gothic_heavy"
android:text="@string/status_alive"
android:textColor="@color/white"
app:layout_constraintStart_toEndOf="@+id/textView3"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView17"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="12dp"
android:layout_marginTop="224dp"
android:fontFamily="@font/sackers_gothic_light"
android:text="@string/status"
android:textColor="@color/gray"
app:layout_constraintStart_toEndOf="@+id/imageView"
app:layout_constraintTop_toTopOf="parent" />
<ToggleButton
android:id="@+id/like"
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginStart="30dp"
android:layout_marginTop="56dp"
android:background="@drawable/toggle_selector"
android:textOff=""
android:textOn=""
app:layout_constraintStart_toEndOf="@+id/textView8"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ic_baseline_favorite_border_24" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
这是我的再生水
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.example.myapplication.R;
import com.example.myapplication.ScrollviewSam;
import java.util.List;
public class CharacterAdapter extends RecyclerView.Adapter<CharacterAdapter.ViewHolder> {
List<String> name;
List<Integer> images;
LayoutInflater layoutInflater;
public CharacterAdapter( Context context, List<String> name, List<Integer> images) {
this.name = name;
this.images = images;
this.layoutInflater = LayoutInflater.from(context);
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = layoutInflater.inflate(R.layout.character_grid_layout,parent,false);
return new ViewHolder(view);
}
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
holder.name.setText(name.get(position));
holder.image.setImageResource(images.get(position));
}
@Override
public int getItemCount() {
return name.size();
}
public class ViewHolder extends RecyclerView.ViewHolder{
TextView name;
ImageView image;
public ViewHolder(@NonNull View itemView) {
super(itemView);
name = itemView.findViewById(R.id.name);
image = itemView.findViewById(R.id.image);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (getAdapterPosition() == 0 ){
Intent intent = new Intent(v.getContext(), ScrollviewSam.class);
v.getContext().startActivity(intent);
}
}
});
}
}
}
导入android.content.Context;
导入android.content.Intent;
导入android.view.LayoutInflater;
导入android.view.view;
导入android.view.ViewGroup;
导入android.widget.ImageView;
导入android.widget.TextView;
导入androidx.annotation.NonNull;
导入androidx.recyclerview.widget.recyclerview;
导入com.example.myapplication.R;
导入com.example.myapplication.ScrollviewSam;
导入java.util.List;
公共类CharacterAdapter扩展了RecyclerView.Adapter{
名单名称;
列出图像;
LayoutInflater LayoutInflater;
公共字符适配器(上下文上下文、列表名称、列表图像){
this.name=名称;
这个。图像=图像;
this.layoutInflater=layoutInflater.from(上下文);
}
@非空
@凌驾
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent,int viewType){
视图=布局更平坦。充气(R.layout.character\u grid\u layout,parent,false);
返回新的ViewHolder(视图);
}
public void onBindViewHolder(@NonNull ViewHolder,int位置){
holder.name.setText(name.get(position));
holder.image.setImageResource(images.get(position));
}
@凌驾
public int getItemCount(){
返回name.size();
}
公共类ViewHolder扩展了RecyclerView.ViewHolder{
文本视图名称;
图像视图图像;
公共视图持有者(@NonNull View itemView){
超级(项目视图);
name=itemView.findviewbyd(R.id.name);
image=itemView.findviewbyd(R.id.image);
itemView.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
如果(getAdapterPosition()==0){
Intent Intent=新的Intent(v.getContext(),ScrollviewSam.class);
v、 getContext().startActivity(意图);
}
}
});
}
}
}
如您所见,我为该项设置了clickListener。这正是我感到困惑的地方,因为我为视图创建了一个新的活动,但随着一次又一次地创建活动和视图,这将变得超级重复。您就快到了。您不希望检查适配器位置并启动活动,而是希望将数据传递给ViewHolder,然后再传递给活动。 第一部分可以使用onBindViewHo\lder(),第二部分可以使用
[Intents][1]
// In your adapter's onBindViewHolder
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
holder.bindDataToYourViewHolder(name.get(position), images.get(position))
}
上面的选项将设置ViewHolder中的名称和图像。您需要稍微调整您的取景器:
public ViewHolder(@NonNull View itemView) {
super(itemView);
name = itemView.findViewById(R.id.name);
image = itemView.findViewById(R.id.image);
}
public void bindDataToYourViewHolder(String yourName, int yourImage){
name.setText(yourName);
image.setImageResource(yourImage);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(v.getContext(), ScrollviewSam.class);
intent.putExtra("name", yourName)
// You can use yourImage here as well
v.getContext().startActivity(intent);
}
});
}
这样,您就可以将name.getText()
传递给ScrollviewSam
活动。
在ScrollviewSam.onCreate()中,您可以通过执行以下操作获取额外的内容:
// In ScrollviewSam Activity
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String name = getIntent().getStringExtra("name");
}
除了字符串,您还可以通过bundle传递布尔、整数等。如果对象实现了可包裹的界面,您甚至可以传递整个对象。但是,基本的原语应该可以让你开始使用。这就是我想的,我只是在代码中更改字符串和图像,但我看不出onclick函数如何知道单击了哪张卡,以及如何设置所需的值?添加了BindViewHolder示例我终于明白了!因此,在Scrollview类中,我将只找到TextView,如果键匹配,我将用我希望从捆绑包中获得的字符串替换它!现在尝试一下,效果很好!谢谢你的澄清,manBingo!喜欢创造伟大的东西:肌肉:好的,但现在有另一个问题与喜欢按钮。它在视图中共享。如何绑定到当前视图?因为当我单击它时,更改将在其他视图中可见