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Start your free trialSum Tsui
Full Stack JavaScript Techdegree Student 29,117 PointsApp crashed clicking Hourly button. Required view 'recyclerView' with ID 2131492971 for field 'mRecyclerView' not found.
when i clicked the Hourly button the app crashed. the logcat said: Caused by: java.lang.IllegalStateException: Required view 'recyclerView' with ID 2131492971 for field 'mRecyclerView' was not found. If this view is optional add '@Nullable' annotation.
I checked my code line by line with the code downloaded from Treehouse but still counldn't find out where went wrong :(
HourAdapter.java
package net.sumtsui.stormy.adapters;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import net.sumtsui.stormy.R;
import net.sumtsui.stormy.weather.Hour;
public class HourAdapter extends RecyclerView.Adapter<HourAdapter.HourViewHolder> {
private Hour[] mHours;
private Context mContext;
public HourAdapter(Context context, Hour[] hours) {
mContext = context;
mHours = hours;
}
@Override
public HourViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.hourly_list_item, parent, false);
HourViewHolder viewHolder = new HourViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(HourViewHolder holder, int position) {
holder.bindHour(mHours[position]);
}
@Override
public int getItemCount() {
return mHours.length;
}
public class HourViewHolder extends RecyclerView.ViewHolder
implements View.OnClickListener {
public TextView mTimeLabel;
public TextView mSummaryLabel;
public TextView mTemperatureLabel;
public ImageView mIconImageView;
public HourViewHolder(View itemView) {
super(itemView);
mTimeLabel = (TextView) itemView.findViewById(R.id.timeLabel);
mSummaryLabel = (TextView) itemView.findViewById(R.id.summaryLabel);
mTemperatureLabel = (TextView) itemView.findViewById(R.id.temperatureLabel);
mIconImageView = (ImageView) itemView.findViewById(R.id.iconImageView);
itemView.setOnClickListener(this);
}
public void bindHour(Hour hour) {
mTimeLabel.setText(hour.getHour());
mSummaryLabel.setText(hour.getSummary());
mTemperatureLabel.setText(hour.getTemperature() + "");
mIconImageView.setImageResource(hour.getIconId());
}
@Override
public void onClick(View v) {
String time = mTimeLabel.getText().toString();
String temperature = mTemperatureLabel.getText().toString();
String summary = mSummaryLabel.getText().toString();
String message = String.format("At %s it will be %s and %s",
time,
temperature,
summary);
Toast.makeText(mContext, message, Toast.LENGTH_LONG).show();
}
}
}
HourlyForecastActivity
package net.sumtsui.stormy.ui;
import android.content.Intent;
import android.os.Bundle;
import android.os.Parcelable;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import java.util.Arrays;
import butterknife.ButterKnife;
import butterknife.Bind;
import net.sumtsui.stormy.R;
import net.sumtsui.stormy.adapters.HourAdapter;
import net.sumtsui.stormy.weather.Hour;
public class HourlyForecastActivity extends AppCompatActivity {
private Hour[] mHours;
@Bind(R.id.recyclerView) RecyclerView mRecyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hourly_forecast);
ButterKnife.bind(this);
Intent intent = getIntent();
Parcelable[] parcelables = intent.getParcelableArrayExtra(MainActivity.HOURLY_FORECAST);
mHours = Arrays.copyOf(parcelables, parcelables.length, Hour[].class);
HourAdapter adapter = new HourAdapter(this, mHours);
mRecyclerView.setAdapter(adapter);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(layoutManager);
mRecyclerView.setHasFixedSize(true);
}
}
hourly_list_item.xml
<?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="wrap_content"
tools:background="@drawable/bg_gradient"
android:paddingTop="8dp"
android:paddingBottom="8dp">
<TextView
android:layout_width="80dp"
android:layout_height="wrap_content"
android:id="@+id/timeLabel"
android:layout_centerVertical="true"
android:layout_alignParentStart="true"
android:textColor="#ffffffff"
android:textSize="24sp"
tools:text="12 PM"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/iconImageView"
android:layout_alignParentTop="true"
android:layout_toEndOf="@+id/timeLabel"
android:layout_toRightOf="@+id/timeLabel"
android:layout_centerVertical="true"
android:src="@drawable/partly_cloudy" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="100"
android:id="@+id/temperatureLabel"
android:layout_alignBottom="@+id/timeLabel"
android:layout_alignParentEnd="true"
android:layout_centerVertical="true"
android:textColor="#ffffffff"
android:textSize="24sp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/summaryLabel"
android:layout_centerVertical="true"
android:layout_toEndOf="@+id/iconImageView"
android:textColor="#ffffffff"
android:layout_toLeftOf="@+id/temperatureLabel"
android:paddingLeft="15dp"
android:paddingRight="15dp"
tools:text="Partly Cloudy"
android:textSize="16sp"/>
</RelativeLayout>
content_hourly_forecast.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="net.sumtsui.stormy.ui.HourlyForecastActivity"
android:background="@drawable/bg_gradient">
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/recyclerView" />
</RelativeLayout>
Hour.java
package net.sumtsui.stormy.weather;
import android.os.Parcel;
import android.os.Parcelable;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Hour implements Parcelable {
private long mTime;
private String mSummary;
private double mTemperature;
private String mIcon;
private String mTimezone;
public long getTime() {
return mTime;
}
public void setTime(long time) {
mTime = time;
}
public String getSummary() {
return mSummary;
}
public void setSummary(String summary) {
mSummary = summary;
}
public int getTemperature() {
return (int)Math.round(mTemperature);
}
public void setTemperature(double temperature) {
mTemperature = temperature;
}
public String getIcon() {
return mIcon;
}
public int getIconId() {
return Forecast.getIconId(mIcon);
}
public void setIcon(String icon) {
mIcon = icon;
}
public String getTimezone() {
return mTimezone;
}
public void setTimezone(String timezone) {
mTimezone = timezone;
}
public String getHour() {
SimpleDateFormat formatter = new SimpleDateFormat("h a");
Date date = new Date(mTime * 1000);
return formatter.format(date);
}
public Hour() {}
@Override
public int describeContents() {
return 0; // ignore
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeLong(mTime);
dest.writeString(mSummary);
dest.writeDouble(mTemperature);
dest.writeString(mIcon);
dest.writeString(mTimezone);
}
private Hour(Parcel in) {
mTime = in.readLong();
mSummary = in.readString();
mTemperature = in.readDouble();
mIcon = in.readString();
mTimezone = in.readString();
}
public static final Creator<Hour> CREATOR = new Creator<Hour>() {
@Override
public Hour createFromParcel(Parcel source) {
return new Hour(source);
}
@Override
public Hour[] newArray(int size) {
return new Hour[size];
}
};
}
1 Answer
Kourosh Raeen
23,733 PointsDo you have the file activity_hourly_forecast.xml? And does it have the following include tag?
<include layout="@layout/content_hourly_forecast"/>
Sum Tsui
Full Stack JavaScript Techdegree Student 29,117 PointsSum Tsui
Full Stack JavaScript Techdegree Student 29,117 PointsNo and I added the line and it finally work! thank you. That line should be there automatically when the layout created right? i must deleted it by accident.