Java android 天气应用程序 hangs/freezes 输入错误的城市名称时
Java android weather application hangs/freezes when entering wrong city name
我是 android 编程新手，这是我的第一个应用程序。我在 Samsung Galaxy S4 上使用 Eclipse IDE 和 运行 应用程序。当我输入存在的城市名称时，该应用程序运行良好。但是，当我输入不存在的城市名称时，它会冻结并滞后很多。此外，我无法单击任何按钮或无法编辑任何文本。我正在使用 api.openweathermap.org 获取 XML 格式的天气信息，然后解析它并将其显示在屏幕上。如果我尝试获取有关无法识别的城市的信息，我会得到这样的回复：{"message":"Error: Not found city","cod":"404"} 显然是 JSON 格式。我试图找到解决方案，但我不知道它是否正确以及我的应用程序挂起的原因。我试图将 API 的回复转换为字符串并检查它是否包含 "404" 。我post下面的源代码:
MainActivity.java :
package com.example.michal.myapplication;
import com.example.michal.myapplication.R;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.Typeface;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.provider.Settings;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.webkit.URLUtil;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
EditText textEditMiasto,textEditKraj,textEditTemperatura,textEditWilgotnosc,textEditCisnienie;
private String urlAdres = "http://api.openweathermap.org/data/2.5/weather?q=";
private String urlTryb = "&mode=xml";
private MyXMLParser obj;
Button btnOK,btnClear;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnOK=(Button)findViewById(R.id.button);
btnClear=(Button)findViewById(R.id.buttonClr);
textEditMiasto=(EditText)findViewById(R.id.editText);
textEditKraj=(EditText)findViewById(R.id.editText2);
textEditTemperatura=(EditText)findViewById(R.id.editText3);
textEditWilgotnosc=(EditText)findViewById(R.id.editText4);
textEditCisnienie=(EditText)findViewById(R.id.editText5);
textEditMiasto.setTextColor(Color.WHITE);
textEditKraj.setTextColor(Color.WHITE);
textEditTemperatura.setTextColor(Color.WHITE);
textEditWilgotnosc.setTextColor(Color.WHITE);
textEditCisnienie.setTextColor(Color.WHITE);
/*
Intent addAccountIntent = new Intent(Settings.ACTION_ADD_ACCOUNT);
addAccountIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_DOCUMENT);
addAccountIntent.putExtra(Settings.EXTRA_AUTHORITIES, new String[]{"com.example.michal.myapplication"});
startActivity(addAccountIntent);
*/
btnOK.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String url = textEditMiasto.getText().toString();
String finalUrl = urlAdres + url + urlTryb;
textEditKraj.setText(finalUrl);
obj = new MyXMLParser(finalUrl);
obj.fetchXML();
while(obj.parsingComplete);
textEditKraj.setText("Kraj : "+obj.getKraj());
textEditTemperatura.setText("Temperatura : "+obj.getTemperatura()+" "+obj.getTemperaturaUnit());
textEditWilgotnosc.setText("Wilgotnosc : "+obj.getWilgotnosc()+" "+obj.getWilgotnoscUnit());
textEditCisnienie.setText("Cisnienie : "+obj.getCisnienie()+" "+obj.getCisnienieUnit());
}
});
btnClear.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
textEditMiasto.setText("");
textEditKraj.setText("");
textEditTemperatura.setText("");
textEditWilgotnosc.setText("");
textEditCisnienie.setText("");
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
// getMenuInflater().inflate(R.menu.menu_mai\, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
MyXMLParser.java :
package com.example.michal.myapplication;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import android.webkit.URLUtil;
import android.widget.Toast;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.SequenceInputStream;
import java.io.StringBufferInputStream;
import java.io.StringReader;
import java.io.StringWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.Buffer;
import org.apache.commons.io.IOUtils;
public class MyXMLParser {
private String kraj = "county";
private String temperatura = "temperature";
private String wilgotnosc = "humidity";
private String cisnienie = "pressure";
private String temperaturaUnit=" ";
private String wilgotnoscUnit=" ";
private String cisnienieUnit="";
private String urlString = " ";
private XmlPullParserFactory xmlFactoryObject;
public volatile boolean parsingComplete = true;
boolean flaga=true;
public void setKraj(String kraj) {
this.kraj = kraj;
}
public void setTemperatura(String temperatura) {
this.temperatura = temperatura;
}
public void setWilgotnosc(String wilgotnosc) {
this.wilgotnosc = wilgotnosc;
}
public void setCisnienie(String cisnienie) {
this.cisnienie = cisnienie;
}
public void setTemperaturaUnit(String temperaturaUnit) {
this.temperaturaUnit = temperaturaUnit;
}
public void setWilgotnoscUnit(String wilgotnoscUnit) {
this.wilgotnoscUnit = wilgotnoscUnit;
}
public void setCisnienieUnit(String cisnienieUnit) {
this.cisnienieUnit = cisnienieUnit;
}
public MyXMLParser(String url){
this.urlString = url;
}
public String getKraj(){
return kraj;
}
public String getTemperatura(){
return temperatura;
}
public String getWilgotnosc(){
return wilgotnosc;
}
public String getCisnienie(){
return cisnienie;
}
public void parseXMLAndStoreIt(XmlPullParser myParser) {
int event;
String text=null;
boolean flaga=true;
try {
event = myParser.getEventType();
//if(text.equals("{\'message\':\'Error: Not found city\',\'cod\':\'404\'}")==true)
// return;
while (event != XmlPullParser.END_DOCUMENT) {
//if(event!=XmlPullParser.START_TAG||event!=XmlPullParser.TEXT||event!=XmlPullParser.END_TAG||event == XmlPullParser.END_DOCUMENT)
// break;
String name=myParser.getName();
switch (event){
case XmlPullParser.START_TAG:
break;
case XmlPullParser.TEXT:
text = myParser.getText();
break;
case XmlPullParser.END_TAG:
if(name.equals("country")){
kraj = text;
}
else if(name.equals("humidity")){
wilgotnosc = myParser.getAttributeValue(null,"value");
wilgotnoscUnit=myParser.getAttributeValue(null,"unit");
}
else if(name.equals("pressure")){
cisnienie = myParser.getAttributeValue(null,"value");
cisnienieUnit=myParser.getAttributeValue(null,"unit");
}
else if(name.equals("temperature")){
temperatura = myParser.getAttributeValue(null,"value");
temperaturaUnit=myParser.getAttributeValue(null,"unit");
}
else{
}
break;
}
event = myParser.next();
}
parsingComplete = false;
}
catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String getTemperaturaUnit() {
return temperaturaUnit;
}
public String getWilgotnoscUnit() {
return wilgotnoscUnit;
}
public String getCisnienieUnit() {
return cisnienieUnit;
}
public void fetchXML(){
Thread thread=new Thread(new Runnable() {
@Override
public void run() {
try {
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
conn.setReadTimeout(10000 /* milliseconds */);
conn.setConnectTimeout(15000 /* milliseconds */);
conn.setRequestMethod("GET");
conn.setDoInput(true);
conn.connect();
InputStream stream = conn.getInputStream();
BufferedInputStream input=new BufferedInputStream(stream);
input.mark(100000);
StringWriter writer = new StringWriter();
IOUtils.copy(input, writer,"UTF-8");
String theString = writer.toString();
input.reset();
if(theString.contains("404")==false)
{
xmlFactoryObject = XmlPullParserFactory.newInstance();
XmlPullParser myparser = xmlFactoryObject.newPullParser();
myparser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
myparser.setInput(input, null);
parseXMLAndStoreIt(myparser);
}
writer.close();
stream.close();
conn.disconnect();
}
catch (Exception e) {
e.printStackTrace();
}
}
});
thread.start();
}
}
AndroidManifest.xml :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.michal.myapplication"
android:installLocation="preferExternal">
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.michal.myapplication.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>
Logcat :
05-31 10:54:17.051: I/dalvikvm(8052): Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
05-31 10:54:17.051: W/dalvikvm(8052): VFY: unable to resolve virtual method 408: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
05-31 10:54:17.051: D/dalvikvm(8052): VFY: replacing opcode 0x6e at 0x0002
05-31 10:54:17.051: I/dalvikvm(8052): Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
05-31 10:54:17.051: W/dalvikvm(8052): VFY: unable to resolve virtual method 430: Landroid/content/res/TypedArray;.getType (I)I
05-31 10:54:17.051: D/dalvikvm(8052): VFY: replacing opcode 0x6e at 0x0002
05-31 10:54:17.101: D/dalvikvm(8052): GC_FOR_ALLOC freed 154K, 44% free 14579K/25840K, paused 19ms, total 20ms
05-31 10:54:17.131: I/dalvikvm-heap(8052): Grow heap (frag case) to 34.536MB for 15892496-byte allocation
05-31 10:54:17.251: I/dalvikvm(8052): Could not find method android.content.res.Resources.getDrawable, referenced from method android.support.v7.internal.widget.ResourcesWrapper.getDrawable
05-31 10:54:17.251: W/dalvikvm(8052): VFY: unable to resolve virtual method 371: Landroid/content/res/Resources;.getDrawable (ILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
05-31 10:54:17.251: D/dalvikvm(8052): VFY: replacing opcode 0x6e at 0x0002
05-31 10:54:17.251: I/dalvikvm(8052): Could not find method android.content.res.Resources.getDrawableForDensity, referenced from method android.support.v7.internal.widget.ResourcesWrapper.getDrawableForDensity
05-31 10:54:17.251: W/dalvikvm(8052): VFY: unable to resolve virtual method 373: Landroid/content/res/Resources;.getDrawableForDensity (IILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
05-31 10:54:17.251: D/dalvikvm(8052): VFY: replacing opcode 0x6e at 0x0002
一段时间后我也收到：
05-31 10:55:57.008: I/dalvikvm(8052): threadid=3: reacting to signal 3
05-31 10:55:57.258: D/dalvikvm(8052): JIT unchain all for threadid=1
05-31 10:55:57.309: I/dalvikvm(8052): Wrote stack traces to '/data/anr/traces.txt'
在此先感谢您的帮助。
这是因为您处理线程的方式。你的：
while(obj.parsingComplete);
... 显然锁定了主 UI 线程。不要那样做！使用 AsyncTask 在后台线程中进行解析并在后台任务完成时更新主线程中的 UI 而不是在主 UI 线程中等待并从后台线程中分离出来手动。
我是 android 编程新手，这是我的第一个应用程序。我在 Samsung Galaxy S4 上使用 Eclipse IDE 和 运行 应用程序。当我输入存在的城市名称时，该应用程序运行良好。但是，当我输入不存在的城市名称时，它会冻结并滞后很多。此外，我无法单击任何按钮或无法编辑任何文本。我正在使用 api.openweathermap.org 获取 XML 格式的天气信息，然后解析它并将其显示在屏幕上。如果我尝试获取有关无法识别的城市的信息，我会得到这样的回复：{"message":"Error: Not found city","cod":"404"} 显然是 JSON 格式。我试图找到解决方案，但我不知道它是否正确以及我的应用程序挂起的原因。我试图将 API 的回复转换为字符串并检查它是否包含 "404" 。我post下面的源代码:
MainActivity.java :
package com.example.michal.myapplication;
import com.example.michal.myapplication.R;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.Typeface;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.provider.Settings;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.webkit.URLUtil;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
EditText textEditMiasto,textEditKraj,textEditTemperatura,textEditWilgotnosc,textEditCisnienie;
private String urlAdres = "http://api.openweathermap.org/data/2.5/weather?q=";
private String urlTryb = "&mode=xml";
private MyXMLParser obj;
Button btnOK,btnClear;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnOK=(Button)findViewById(R.id.button);
btnClear=(Button)findViewById(R.id.buttonClr);
textEditMiasto=(EditText)findViewById(R.id.editText);
textEditKraj=(EditText)findViewById(R.id.editText2);
textEditTemperatura=(EditText)findViewById(R.id.editText3);
textEditWilgotnosc=(EditText)findViewById(R.id.editText4);
textEditCisnienie=(EditText)findViewById(R.id.editText5);
textEditMiasto.setTextColor(Color.WHITE);
textEditKraj.setTextColor(Color.WHITE);
textEditTemperatura.setTextColor(Color.WHITE);
textEditWilgotnosc.setTextColor(Color.WHITE);
textEditCisnienie.setTextColor(Color.WHITE);
/*
Intent addAccountIntent = new Intent(Settings.ACTION_ADD_ACCOUNT);
addAccountIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_DOCUMENT);
addAccountIntent.putExtra(Settings.EXTRA_AUTHORITIES, new String[]{"com.example.michal.myapplication"});
startActivity(addAccountIntent);
*/
btnOK.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String url = textEditMiasto.getText().toString();
String finalUrl = urlAdres + url + urlTryb;
textEditKraj.setText(finalUrl);
obj = new MyXMLParser(finalUrl);
obj.fetchXML();
while(obj.parsingComplete);
textEditKraj.setText("Kraj : "+obj.getKraj());
textEditTemperatura.setText("Temperatura : "+obj.getTemperatura()+" "+obj.getTemperaturaUnit());
textEditWilgotnosc.setText("Wilgotnosc : "+obj.getWilgotnosc()+" "+obj.getWilgotnoscUnit());
textEditCisnienie.setText("Cisnienie : "+obj.getCisnienie()+" "+obj.getCisnienieUnit());
}
});
btnClear.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
textEditMiasto.setText("");
textEditKraj.setText("");
textEditTemperatura.setText("");
textEditWilgotnosc.setText("");
textEditCisnienie.setText("");
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
// getMenuInflater().inflate(R.menu.menu_mai\, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
MyXMLParser.java :
package com.example.michal.myapplication;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import android.webkit.URLUtil;
import android.widget.Toast;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.SequenceInputStream;
import java.io.StringBufferInputStream;
import java.io.StringReader;
import java.io.StringWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.Buffer;
import org.apache.commons.io.IOUtils;
public class MyXMLParser {
private String kraj = "county";
private String temperatura = "temperature";
private String wilgotnosc = "humidity";
private String cisnienie = "pressure";
private String temperaturaUnit=" ";
private String wilgotnoscUnit=" ";
private String cisnienieUnit="";
private String urlString = " ";
private XmlPullParserFactory xmlFactoryObject;
public volatile boolean parsingComplete = true;
boolean flaga=true;
public void setKraj(String kraj) {
this.kraj = kraj;
}
public void setTemperatura(String temperatura) {
this.temperatura = temperatura;
}
public void setWilgotnosc(String wilgotnosc) {
this.wilgotnosc = wilgotnosc;
}
public void setCisnienie(String cisnienie) {
this.cisnienie = cisnienie;
}
public void setTemperaturaUnit(String temperaturaUnit) {
this.temperaturaUnit = temperaturaUnit;
}
public void setWilgotnoscUnit(String wilgotnoscUnit) {
this.wilgotnoscUnit = wilgotnoscUnit;
}
public void setCisnienieUnit(String cisnienieUnit) {
this.cisnienieUnit = cisnienieUnit;
}
public MyXMLParser(String url){
this.urlString = url;
}
public String getKraj(){
return kraj;
}
public String getTemperatura(){
return temperatura;
}
public String getWilgotnosc(){
return wilgotnosc;
}
public String getCisnienie(){
return cisnienie;
}
public void parseXMLAndStoreIt(XmlPullParser myParser) {
int event;
String text=null;
boolean flaga=true;
try {
event = myParser.getEventType();
//if(text.equals("{\'message\':\'Error: Not found city\',\'cod\':\'404\'}")==true)
// return;
while (event != XmlPullParser.END_DOCUMENT) {
//if(event!=XmlPullParser.START_TAG||event!=XmlPullParser.TEXT||event!=XmlPullParser.END_TAG||event == XmlPullParser.END_DOCUMENT)
// break;
String name=myParser.getName();
switch (event){
case XmlPullParser.START_TAG:
break;
case XmlPullParser.TEXT:
text = myParser.getText();
break;
case XmlPullParser.END_TAG:
if(name.equals("country")){
kraj = text;
}
else if(name.equals("humidity")){
wilgotnosc = myParser.getAttributeValue(null,"value");
wilgotnoscUnit=myParser.getAttributeValue(null,"unit");
}
else if(name.equals("pressure")){
cisnienie = myParser.getAttributeValue(null,"value");
cisnienieUnit=myParser.getAttributeValue(null,"unit");
}
else if(name.equals("temperature")){
temperatura = myParser.getAttributeValue(null,"value");
temperaturaUnit=myParser.getAttributeValue(null,"unit");
}
else{
}
break;
}
event = myParser.next();
}
parsingComplete = false;
}
catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String getTemperaturaUnit() {
return temperaturaUnit;
}
public String getWilgotnoscUnit() {
return wilgotnoscUnit;
}
public String getCisnienieUnit() {
return cisnienieUnit;
}
public void fetchXML(){
Thread thread=new Thread(new Runnable() {
@Override
public void run() {
try {
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
conn.setReadTimeout(10000 /* milliseconds */);
conn.setConnectTimeout(15000 /* milliseconds */);
conn.setRequestMethod("GET");
conn.setDoInput(true);
conn.connect();
InputStream stream = conn.getInputStream();
BufferedInputStream input=new BufferedInputStream(stream);
input.mark(100000);
StringWriter writer = new StringWriter();
IOUtils.copy(input, writer,"UTF-8");
String theString = writer.toString();
input.reset();
if(theString.contains("404")==false)
{
xmlFactoryObject = XmlPullParserFactory.newInstance();
XmlPullParser myparser = xmlFactoryObject.newPullParser();
myparser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
myparser.setInput(input, null);
parseXMLAndStoreIt(myparser);
}
writer.close();
stream.close();
conn.disconnect();
}
catch (Exception e) {
e.printStackTrace();
}
}
});
thread.start();
}
}
AndroidManifest.xml :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.michal.myapplication"
android:installLocation="preferExternal">
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.michal.myapplication.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>
Logcat :
05-31 10:54:17.051: I/dalvikvm(8052): Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
05-31 10:54:17.051: W/dalvikvm(8052): VFY: unable to resolve virtual method 408: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
05-31 10:54:17.051: D/dalvikvm(8052): VFY: replacing opcode 0x6e at 0x0002
05-31 10:54:17.051: I/dalvikvm(8052): Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
05-31 10:54:17.051: W/dalvikvm(8052): VFY: unable to resolve virtual method 430: Landroid/content/res/TypedArray;.getType (I)I
05-31 10:54:17.051: D/dalvikvm(8052): VFY: replacing opcode 0x6e at 0x0002
05-31 10:54:17.101: D/dalvikvm(8052): GC_FOR_ALLOC freed 154K, 44% free 14579K/25840K, paused 19ms, total 20ms
05-31 10:54:17.131: I/dalvikvm-heap(8052): Grow heap (frag case) to 34.536MB for 15892496-byte allocation
05-31 10:54:17.251: I/dalvikvm(8052): Could not find method android.content.res.Resources.getDrawable, referenced from method android.support.v7.internal.widget.ResourcesWrapper.getDrawable
05-31 10:54:17.251: W/dalvikvm(8052): VFY: unable to resolve virtual method 371: Landroid/content/res/Resources;.getDrawable (ILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
05-31 10:54:17.251: D/dalvikvm(8052): VFY: replacing opcode 0x6e at 0x0002
05-31 10:54:17.251: I/dalvikvm(8052): Could not find method android.content.res.Resources.getDrawableForDensity, referenced from method android.support.v7.internal.widget.ResourcesWrapper.getDrawableForDensity
05-31 10:54:17.251: W/dalvikvm(8052): VFY: unable to resolve virtual method 373: Landroid/content/res/Resources;.getDrawableForDensity (IILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
05-31 10:54:17.251: D/dalvikvm(8052): VFY: replacing opcode 0x6e at 0x0002
一段时间后我也收到：
05-31 10:55:57.008: I/dalvikvm(8052): threadid=3: reacting to signal 3
05-31 10:55:57.258: D/dalvikvm(8052): JIT unchain all for threadid=1
05-31 10:55:57.309: I/dalvikvm(8052): Wrote stack traces to '/data/anr/traces.txt'
在此先感谢您的帮助。
这是因为您处理线程的方式。你的：
while(obj.parsingComplete);
... 显然锁定了主 UI 线程。不要那样做！使用 AsyncTask 在后台线程中进行解析并在后台任务完成时更新主线程中的 UI 而不是在主 UI 线程中等待并从后台线程中分离出来手动。