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我必须layouts，main_activity和其他layout2，我在layout2中有一个按钮和EditText ..我想从main_activity中调用layout2中的Button和EditText，有没有办法做到这一点？ 这是我的布局2：FindViewById在不同的布局？
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1">
<android.support.v7.widget.CardView
android:id="@+id/ccard_view"
android:layout_width="match_parent"
android:layout_height="315dp"
card_view:cardCornerRadius="2dp"
card_view:cardElevation="3dp"
card_view:cardUseCompatPadding="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="226dp"
android:orientation="vertical"
android:weightSum="1">
<TextView
android:id="@+id/title_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="7dp"
android:text="this is title"
android:textColor="@color/primaryText"
android:textSize="20sp"
android:textStyle="bold"
android:layout_weight="0.31"/>
<TextView
android:id="@+id/content_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="7dp"
android:layout_marginLeft="7dp"
android:layout_marginRight="7dp"
android:text="this is lorem ipsum content of universe"
android:textColor="@color/secondaryText"
android:textSize="17sp" />
<EditText
android:layout_width="match_parent"
android:layout_height="54dp"
android:id="@+id/response"/>
<Button
android:id="@+id/save"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.15"
android:text="Save"
/>
</LinearLayout>
这是我main_layout：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.dell.offlinesurvey.MainActivity"
android:id="@+id/relativelayout">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true" />
按钮和EditText上是布局2，它是用来显示数据的cardview。
我的适配器类：
package com.example.dell.offlinesurvey;
import android.app.Dialog;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.NetworkImageView;
import java.util.ArrayList;
import java.util.List;
import static com.example.dell.offlinesurvey.R.id.response;
import static com.example.dell.offlinesurvey.R.id.save;
import static com.example.dell.offlinesurvey.R.id.show;
public class MyRecyclerAdapter extends
RecyclerView.Adapter<MyRecyclerAdapter.MyViewHolder> {
private List<NewsQuestions> questionsList;
private Context context;
private LayoutInflater inflater;
private SQLiteDatabase db;
public MyRecyclerAdapter(Context context, List<NewsQuestions> questionsList) {
this.context = context;
this.questionsList = questionsList;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View rootView = inflater.inflate(R.layout.singleitem_recyclerview, parent, false);
return new MyViewHolder(rootView);
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
NewsQuestions questions = questionsList.get(position);
//Pass the values of feeds object to Views
holder.question.setText(questions.getQuestion());
holder.qid.setText(questions.getQid());
/** holder.imageview.setImageUrl(feeds.getImgURL(), NetworkController.getInstance(context).getImageLoader());
holder.ratingbar.setProgress(feeds.getRating());**/
}
@Override
public int getItemCount() {
return questionsList.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
private TextView question, qid;
private EditText rp;
private Button save;
private NetworkImageView imageview;
private ProgressBar ratingbar;
public MyViewHolder(View itemView) {
super(itemView);
question = (TextView) itemView.findViewById(R.id.title_view);
qid = (TextView) itemView.findViewById(R.id.content_view);
// Volley's NetworkImageView which will load Image from URL
// imageview = (NetworkImageView) itemView.findViewById(R.id.thumbnail);
// ratingbar = (ProgressBar) itemView.findViewById(R.id.ratingbar_view);
/** ratingbar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(context, "Rated By User : " + questionsList.get(getAdapterPosition()).getRating(), Toast.LENGTH_SHORT).show();
}
});**/
}
}
}
它不工作：/ – Yassine
你能简要解释关于问题 –
我创建了一个适配器类以显示来自服务器的数据。我有一个回收商的视图布局，其主要活动和卡片视图显示所有项目。现在我试图做的是从cardview布局获取用户输入并将其保存在sqlite数据库中 – Yassine