RuntimeException：无法启动 activity ComponentInfo，NotFoundException
RuntimeException: Unable to start activity ComponentInfo, NotFoundException
我正在尝试通过这个基本示例学习 Retrofit 2。我在尝试将可序列化数据从 activity 传递到 activity...
时遇到问题
你知道为什么吗？
这是我的代码。
logcat:
05-24 00:21:46.215 18156-18156/com.krystian.weatherapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.krystian.weatherapp, PID: 18156
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.krystian.weatherapp/com.krystian.flowerapp.ui.DetailActivity}: android.content.res.Resources$NotFoundException: String resource ID
#0x2
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442)
at android.app.ActivityThread.access0(ActivityThread.java:156)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:211)
at android.app.ActivityThread.main(ActivityThread.java:5373)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815)
Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x2
at android.content.res.Resources.getText(Resources.java:340)
at android.support.v7.widget.ResourcesWrapper.getText(ResourcesWrapper.java:52)
at android.widget.TextView.setText(TextView.java:4171)
at com.krystian.flowerapp.ui.DetailActivity.setData(DetailActivity.java:52)
at com.krystian.flowerapp.ui.DetailActivity.onCreate(DetailActivity.java:47)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2332)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442)
at android.app.ActivityThread.access0(ActivityThread.java:156)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:211)
at android.app.ActivityThread.main(ActivityThread.java:5373)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815)
MainActivity.java:
package com.krystian.flowerapp.ui;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import com.krystian.flowerapp.R;
import com.krystian.flowerapp.adapter.FlowerAdapter;
import com.krystian.flowerapp.controller.RestManager;
import com.krystian.flowerapp.helper.Constants;
import com.krystian.flowerapp.model.Flower;
import java.util.List;
import butterknife.BindView;
import butterknife.ButterKnife;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class MainActivity extends AppCompatActivity implements FlowerAdapter.FlowerClickListener {
@BindView(R.id.recyclerView)
RecyclerView recyclerView;
private RestManager mRestManager;
private FlowerAdapter mFlowerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
configViews();
mRestManager = new RestManager();
Call<List<Flower>> listCall = mRestManager.getFlowerService().getAllFlowers();
listCall.enqueue(new Callback<List<Flower>>() {
@Override
public void onResponse(Call<List<Flower>> call, Response<List<Flower>> response) {
if (response.isSuccessful()) {
List<Flower> flowerList = response.body();
for (int i=0; i < flowerList.size(); i++) {
Flower flower = flowerList.get(i);
mFlowerAdapter.addFlower(flower);
}
} else {
int ac = response.code();
Log.e("Response code", String.valueOf(ac));
}
}
@Override
public void onFailure(Call<List<Flower>> call, Throwable t) {
}
});
}
private void configViews() {
recyclerView.setHasFixedSize(true);
recyclerView.setRecycledViewPool(new RecyclerView.RecycledViewPool());
recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false));
mFlowerAdapter = new FlowerAdapter(this);
recyclerView.setAdapter(mFlowerAdapter);
}
@Override
public void onClick(int position) {
Flower selectedFlower = mFlowerAdapter.getSelectedFlower(position);
Intent intent = new Intent(MainActivity.this, DetailActivity.class);
intent.putExtra(Constants.REFERENCE.FLOWER, selectedFlower);
startActivity(intent);
}
}
DetailActivity.java:
package com.krystian.flowerapp.ui;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.widget.ImageView;
import android.widget.TextView;
import com.krystian.flowerapp.R;
import com.krystian.flowerapp.helper.Constants;
import com.krystian.flowerapp.model.Flower;
import com.squareup.picasso.Picasso;
import butterknife.BindView;
import butterknife.ButterKnife;
/**
* Created by: Krystian
* Date: 23.05.2016.
*/
public class DetailActivity extends AppCompatActivity {
@BindView(R.id.photoImageView)
ImageView photoImageView;
@BindView(R.id.nameTextView)
TextView nameTextView;
@BindView(R.id.idTextView)
TextView idTextView;
@BindView(R.id.categoryTextView)
TextView categoryTextView;
@BindView(R.id.priceTextView)
TextView priceTextView;
@BindView(R.id.instructionsTextView)
TextView instructionsTextView;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_detail);
ButterKnife.bind(this);
Intent intent = getIntent();
Flower flower = (Flower) intent.getSerializableExtra(Constants.REFERENCE.FLOWER);
setData(flower);
}
private void setData(Flower flower) {
nameTextView.setText(flower.getName());
idTextView.setText(flower.getProductId());
categoryTextView.setText(flower.getCategory());
priceTextView.setText(String.valueOf(flower.getPrice()));
instructionsTextView.setText(flower.getInstructions());
Picasso
.with(getApplicationContext())
.load(Constants.HTTP.PHOTO_URL + flower.getPhoto())
.into(photoImageView);
}
}
AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.krystian.flowerapp">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name="com.krystian.flowerapp.ui.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.krystian.flowerapp.ui.DetailActivity" />
</application>
导致问题的行位于 DetailActivity 中的第 52 行：
idTextView.setText(flower.getProductId());
setText的声明是：
void setText (int resid)
线索在参数名中，它是一个资源ID，当flower.getProductId()传递给视图的setText方法时，它期待[=14=中的字符串资源] 或表示 int 字符串资源的标识符。并且资源 ID 与 flower class 的实际 getter/method getProductId() 之间发生了混淆。
最简单的解决方法是使用Stringclass的valueOf方法，将flower[=32=的Product ID转换为] 到字符串类型。
idTextView.setText(String.valueOf(flower.getProductId()));
我正在尝试通过这个基本示例学习 Retrofit 2。我在尝试将可序列化数据从 activity 传递到 activity...
时遇到问题你知道为什么吗？
这是我的代码。
logcat:
05-24 00:21:46.215 18156-18156/com.krystian.weatherapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.krystian.weatherapp, PID: 18156
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.krystian.weatherapp/com.krystian.flowerapp.ui.DetailActivity}: android.content.res.Resources$NotFoundException: String resource ID
#0x2
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442)
at android.app.ActivityThread.access0(ActivityThread.java:156)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:211)
at android.app.ActivityThread.main(ActivityThread.java:5373)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815)
Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x2
at android.content.res.Resources.getText(Resources.java:340)
at android.support.v7.widget.ResourcesWrapper.getText(ResourcesWrapper.java:52)
at android.widget.TextView.setText(TextView.java:4171)
at com.krystian.flowerapp.ui.DetailActivity.setData(DetailActivity.java:52)
at com.krystian.flowerapp.ui.DetailActivity.onCreate(DetailActivity.java:47)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2332)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442)
at android.app.ActivityThread.access0(ActivityThread.java:156)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:211)
at android.app.ActivityThread.main(ActivityThread.java:5373)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1020)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815)
MainActivity.java:
package com.krystian.flowerapp.ui;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import com.krystian.flowerapp.R;
import com.krystian.flowerapp.adapter.FlowerAdapter;
import com.krystian.flowerapp.controller.RestManager;
import com.krystian.flowerapp.helper.Constants;
import com.krystian.flowerapp.model.Flower;
import java.util.List;
import butterknife.BindView;
import butterknife.ButterKnife;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class MainActivity extends AppCompatActivity implements FlowerAdapter.FlowerClickListener {
@BindView(R.id.recyclerView)
RecyclerView recyclerView;
private RestManager mRestManager;
private FlowerAdapter mFlowerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
configViews();
mRestManager = new RestManager();
Call<List<Flower>> listCall = mRestManager.getFlowerService().getAllFlowers();
listCall.enqueue(new Callback<List<Flower>>() {
@Override
public void onResponse(Call<List<Flower>> call, Response<List<Flower>> response) {
if (response.isSuccessful()) {
List<Flower> flowerList = response.body();
for (int i=0; i < flowerList.size(); i++) {
Flower flower = flowerList.get(i);
mFlowerAdapter.addFlower(flower);
}
} else {
int ac = response.code();
Log.e("Response code", String.valueOf(ac));
}
}
@Override
public void onFailure(Call<List<Flower>> call, Throwable t) {
}
});
}
private void configViews() {
recyclerView.setHasFixedSize(true);
recyclerView.setRecycledViewPool(new RecyclerView.RecycledViewPool());
recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false));
mFlowerAdapter = new FlowerAdapter(this);
recyclerView.setAdapter(mFlowerAdapter);
}
@Override
public void onClick(int position) {
Flower selectedFlower = mFlowerAdapter.getSelectedFlower(position);
Intent intent = new Intent(MainActivity.this, DetailActivity.class);
intent.putExtra(Constants.REFERENCE.FLOWER, selectedFlower);
startActivity(intent);
}
}
DetailActivity.java:
package com.krystian.flowerapp.ui;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.widget.ImageView;
import android.widget.TextView;
import com.krystian.flowerapp.R;
import com.krystian.flowerapp.helper.Constants;
import com.krystian.flowerapp.model.Flower;
import com.squareup.picasso.Picasso;
import butterknife.BindView;
import butterknife.ButterKnife;
/**
* Created by: Krystian
* Date: 23.05.2016.
*/
public class DetailActivity extends AppCompatActivity {
@BindView(R.id.photoImageView)
ImageView photoImageView;
@BindView(R.id.nameTextView)
TextView nameTextView;
@BindView(R.id.idTextView)
TextView idTextView;
@BindView(R.id.categoryTextView)
TextView categoryTextView;
@BindView(R.id.priceTextView)
TextView priceTextView;
@BindView(R.id.instructionsTextView)
TextView instructionsTextView;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_detail);
ButterKnife.bind(this);
Intent intent = getIntent();
Flower flower = (Flower) intent.getSerializableExtra(Constants.REFERENCE.FLOWER);
setData(flower);
}
private void setData(Flower flower) {
nameTextView.setText(flower.getName());
idTextView.setText(flower.getProductId());
categoryTextView.setText(flower.getCategory());
priceTextView.setText(String.valueOf(flower.getPrice()));
instructionsTextView.setText(flower.getInstructions());
Picasso
.with(getApplicationContext())
.load(Constants.HTTP.PHOTO_URL + flower.getPhoto())
.into(photoImageView);
}
}
AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.krystian.flowerapp">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name="com.krystian.flowerapp.ui.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.krystian.flowerapp.ui.DetailActivity" />
</application>
导致问题的行位于 DetailActivity 中的第 52 行：
idTextView.setText(flower.getProductId());
setText的声明是：
void setText (int resid)
线索在参数名中，它是一个资源ID，当flower.getProductId()传递给视图的setText方法时，它期待[=14=中的字符串资源] 或表示 int 字符串资源的标识符。并且资源 ID 与 flower class 的实际 getter/method getProductId() 之间发生了混淆。
最简单的解决方法是使用Stringclass的valueOf方法，将flower[=32=的Product ID转换为] 到字符串类型。
idTextView.setText(String.valueOf(flower.getProductId()));