我遇到了这个问题。我收到Java RuntimeException错误。这是错误日志
04-22 21:11:02.129 17677-17677/com.example.andrewjakevillegas.stormy E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.andrewjakevillegas.stormy, PID: 17677
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.andrewjakevillegas.stormy/com.example.andrewjakevillegas.stormy.MainActivity}: java.lang.RuntimeException: Unable to bind views for com.example.andrewjakevillegas.stormy.MainActivity
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2790)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2855)
at android.app.ActivityThread.access$900(ActivityThread.java:181)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1474)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6117)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: java.lang.RuntimeException: Unable to bind views for com.example.andrewjakevillegas.stormy.MainActivity
at butterknife.ButterKnife.bind(ButterKnife.java:322)
at butterknife.ButterKnife.bind(ButterKnife.java:237)
at com.example.andrewjakevillegas.stormy.MainActivity.onCreate(MainActivity.java:47)
at android.app.Activity.performCreate(Activity.java:6374)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2743)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2855)
at android.app.ActivityThread.access$900(ActivityThread.java:181)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1474)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6117)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: java.lang.IllegalStateException: Required view 'timeLabel' with ID 2131230803 for field 'mTimeLabel' was not found. If this view is optional add '@Nullable' annotation.
at butterknife.ButterKnife$Finder.findRequiredView(ButterKnife.java:140)
at com.example.andrewjakevillegas.stormy.MainActivity$$ViewBinder.bind(MainActivity$$ViewBinder.java:11)
at com.example.andrewjakevillegas.stormy.MainActivity$$ViewBinder.bind(MainActivity$$ViewBinder.java:8)
at butterknife.ButterKnife.bind(ButterKnife.java:319)
at butterknife.ButterKnife.bind(ButterKnife.java:237)
at com.example.andrewjakevillegas.stormy.MainActivity.onCreate(MainActivity.java:47)
at android.app.Activity.performCreate(Activity.java:6374)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2743)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2855)
at android.app.ActivityThread.access$900(ActivityThread.java:181)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1474)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6117)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
04-22 21:11:05.309 17677-17677/com.example.andrewjakevillegas.stormy I/Process﹕ Sending signal. PID: 17677 SIG: 9
这是我的MainActivity.java
package com.example.andrewjakevillegas.stormy;
import android.app.DownloadManager;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONException;
import org.json.JSONObject;
import org.w3c.dom.Text;
import java.io.IOException;
import butterknife.Bind;
import butterknife.ButterKnife;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
public class MainActivity extends ActionBarActivity {
public static final String TAG = MainActivity.class.getSimpleName();
private CurrentWeather mCurrentWeather;
@Bind(R.id.timeLabel) TextView mTimeLabel;
@Bind(R.id.temperatureLabel) TextView mTemperatureLabel;
@Bind(R.id.humidityValue) TextView mHumidityValue;
@Bind(R.id.precipValue) TextView mPrecipValue;
@Bind(R.id.summaryLabel) TextView mSummaryLabel;
@Bind(R.id.iconImageView) TextView mIconImageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
String apiKey = "6742d289456f597f5aca440dc97c2b3b";
double latitude = 37.8267;
double longitude = -122.423;
String forecastURL = "https://api.forecast.io/forecast/" + apiKey +
"/" + latitude + "," + longitude;
if (isNetworkAvailable()) {
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url(forecastURL)
.build();
Call call = client.newCall(request);
call.enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
try {
String jsonData = response.body().string();
Log.v(TAG, jsonData);
if (response.isSuccessful()) {
mCurrentWeather = getCurrentDetails(jsonData);
runOnUiThread(new Runnable() {
@Override
public void run() {
updateDisplay();
}
});
} else {
alertUserAboutError();
}
} catch (IOException e) {
Log.e(TAG, "Exception caught: ", e);
}
catch (JSONException e){
Log.e(TAG, "Exception caught: ", e);
}
}
});
}
else {
Toast.makeText(this, getString(R.string.network_unavailable_message),
Toast.LENGTH_LONG).show();
}
Log.d(TAG, "Main UI code is running!");
}
private void updateDisplay() {
mTemperatureLabel.setText(mCurrentWeather.getTemperature() +"");
}
private CurrentWeather getCurrentDetails(String jsonData) throws JSONException {
JSONObject forecast = new JSONObject(jsonData);
String timezone = forecast.getString("timezone");
Log.i(TAG, "From JSON: " + timezone);
JSONObject currently = forecast.getJSONObject("currently");
CurrentWeather currentWeather = new CurrentWeather();
currentWeather.setHumidity(currently.getDouble("humidity"));
currentWeather.setTime(currently.getLong("time"));
currentWeather.setIcon(currently.getString("icon"));
currentWeather.setPrecipChance(currently.getDouble("precipProbability"));
currentWeather.setSummary(currently.getString("summary"));
currentWeather.setTemperature(currently.getDouble("temperature"));
return new CurrentWeather();
}
private boolean isNetworkAvailable() {
ConnectivityManager manager = (ConnectivityManager)
getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = manager.getActiveNetworkInfo();
boolean isAvailable = false;
if (networkInfo != null && networkInfo.isConnected()){
isAvailable = true;
}
return isAvailable;
}
private void alertUserAboutError() {
AlertDialogFragment dialog = new AlertDialogFragment();
dialog.show(getFragmentManager(), "error_dialog");
}
}
这是我的activity_main.xml - 这是我的布局。
<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"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity"
android:id="@+id/RelativeLayout"
android:background="#fffc970b">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="100"
android:id="@+id/temperatureLabel"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:textColor="@android:color/white"
android:textSize="150dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/degreeImageView"
android:layout_alignTop="@+id/temperatureLabel"
android:layout_toRightOf="@+id/temperatureLabel"
android:layout_toEndOf="@+id/temperatureLabel"
android:layout_marginTop="50dp"
android:src="@drawable/degree"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="At 5:00 PM it will be"
android:id="@+id/timeLabel"
android:layout_above="@+id/temperatureLabel"
android:layout_centerHorizontal="true"
android:textColor="#95ffffff"
android:textSize="18sp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Alcatraz Island, CA"
android:id="@+id/locationLabel"
android:layout_above="@+id/timeLabel"
android:layout_centerHorizontal="true"
android:layout_marginBottom="60dp"
android:textColor="@android:color/white"
android:textSize="24sp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/iconImageView"
android:layout_alignBottom="@+id/locationLabel"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/cloudy_night"/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/temperatureLabel"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:weightSum="100"
android:id="@+id/linearLayout">
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="50">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="HUMIDITY"
android:id="@+id/humidityLabel"
android:textColor="#95ffffff"
android:gravity="center_horizontal"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="0.88"
android:id="@+id/humidityValue"
android:textColor="@android:color/white"
android:textSize="24sp"
android:gravity="center_horizontal"/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="50">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="RAIN/SNOW?"
android:id="@+id/precipLabel"
android:textColor="#95ffffff"
android:gravity="center_horizontal"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="100"
android:id="@+id/precipValue"
android:textColor="@android:color/white"
android:textSize="24sp"
android:gravity="center_horizontal"/>
</LinearLayout>
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Stormy with a chance of meatballs"
android:id="@+id/summaryLabel"
android:layout_below="@+id/linearLayout"
android:layout_centerHorizontal="true"
android:layout_marginTop="40dp"
android:textColor="@android:color/white"
android:textSize="18dp"
android:gravity="center_horizontal"/>
</RelativeLayout>
这是我的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.andrewjakevillegas.stormy" >
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
非常感谢任何帮助。谢谢。
答案 0 :(得分：2)
您已使用
@Bind(R.id.iconImageView) TextView mIconImageView;
对于： -
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/iconImageView"
android:layout_alignBottom="@+id/locationLabel"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/cloudy_night"/>
应该是
@Bind(R.id.iconImageView) ImageView mIconImageView;
mIconImageView的视图类型错误，它应该是ImageView而不是TextView。