使用KitKat的Android设备上的java.lang.NoClassDefFoundError
我正在开发一个应用程序,目前如果我使用安卓KitKat,应用程序会崩溃,但使用棒棒糖设备,应用程序运行时不会崩溃。来自LogCat的错误:使用KitKat的Android设备上的java.lang.NoClassDefFoundError,android,noclassdeffounderror,android-4.4-kitkat,android-filterable,Android,Noclassdeffounderror,Android 4.4 Kitkat,Android Filterable,我正在开发一个应用程序,目前如果我使用安卓KitKat,应用程序会崩溃,但使用棒棒糖设备,应用程序运行时不会崩溃。来自LogCat的错误: java.lang.NoClassDefFoundError: mypackage.utils.PlacesAutoCompleteAdapter$1 at mypackage.utils.PlacesAutoCompleteAdapter.getFilter(PlacesAutoCompleteAdapter.java:60) at android.wid
java.lang.NoClassDefFoundError: mypackage.utils.PlacesAutoCompleteAdapter$1
at mypackage.utils.PlacesAutoCompleteAdapter.getFilter(PlacesAutoCompleteAdapter.java:60)
at android.widget.AutoCompleteTextView.setAdapter(AutoCompleteTextView.java:635)
at mypackage.PlanRouteActivity.initializeLayout(PlanRouteActivity.java:148)
at mypackage.PlanRouteActivity.onCreate(PlanRouteActivity.java:83)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
该类位于错误的包中:
package mypackage.utils;
public class PlacesAutoCompleteAdapter extends ArrayAdapter<String> implements Filterable {
private static final String TAG = "AutoCompleteAdapter";
// Autocomplete Google Places
private static final String PLACES_API_BASE = "https://maps.googleapis.com/maps/api/place";
private static final String TYPE_AUTOCOMPLETE = "/autocomplete";
private static final String OUT_JSON = "/json";
private static final String API_BROWSER_KEY = "AIzaSyD5JwM_VRieW2WmzPU_D4sl6YST0wuH6Io";
private ArrayList<String> resultList;
// Constructor
public PlacesAutoCompleteAdapter(Context context, int textViewResourceId) {
super(context, textViewResourceId);
}
@Override
public int getCount() {
return resultList.size();
}
@Override
public String getItem(int index) {
return resultList.get(index);
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults filterResults = new FilterResults();
if (constraint != null) {
// Retrieve the autocomplete results.
resultList = autocomplete(constraint.toString());
// Assign the data to the FilterResults
filterResults.values = resultList;
filterResults.count = resultList.size();
}
return filterResults;
}
@Override
protected void publishResults(CharSequence constraint, Filter.FilterResults results) {
if (results != null && results.count > 0) {
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
};
return filter;
}
/**
* Autocomplete text input with Google places
*
* @param input: Text input from AutoCompleteTextView
* @return ArrayList<String>
*/
private ArrayList<String> autocomplete(String input) {
ArrayList<String> resultList = null;
HttpURLConnection conn = null;
StringBuilder jsonResults = new StringBuilder();
try {
StringBuilder sb = new StringBuilder(PLACES_API_BASE + TYPE_AUTOCOMPLETE + OUT_JSON);
sb.append("?key=" + API_BROWSER_KEY);
sb.append("&components;=country:de");
sb.append("&input=" + URLEncoder.encode(input, "utf8"));
URL url = new URL(sb.toString());
conn = (HttpURLConnection) url.openConnection();
InputStreamReader in = new InputStreamReader(conn.getInputStream());
// Load the results into a StringBuilder
int read;
char[] buff = new char[1024];
while ((read = in.read(buff)) != -1) {
jsonResults.append(buff, 0, read);
}
} catch (MalformedURLException e) {
Log.e(TAG, "Error processing Places API URL", e);
return null;
} catch (IOException e) {
Log.e(TAG, "Error connecting to Places API", e);
return null;
} finally {
if (conn != null) {
conn.disconnect();
}
}
try {
// Create a JSON object hierarchy from the results
JSONObject jsonObj = new JSONObject(jsonResults.toString());
JSONArray predsJsonArray = jsonObj.getJSONArray("predictions");
// Extract the Place descriptions from the results
resultList = new ArrayList<String>(predsJsonArray.length());
for (int i = 0; i < predsJsonArray.length(); i++) {
resultList.add(predsJsonArray.getJSONObject(i).getString("description"));
}
} catch (JSONException e) {
Log.e(TAG, "Cannot process JSON results", e);
}
return resultList;
}
}
package mypackage.utils;
公共类PlacesAutoCompleteAdapter扩展ArrayAdapter实现可筛选{
私有静态最终字符串TAG=“autocompletedatapter”;
//自动完成谷歌地点
私有静态最终字符串PLACES\u API\u BASE=”https://maps.googleapis.com/maps/api/place";
私有静态最终字符串类型\u AUTOCOMPLETE=“/AUTOCOMPLETE”;
私有静态最终字符串输出_JSON=“/JSON”;
私有静态最终字符串API_BROWSER_KEY=“AIzaSyD5JwM_VRieW2WmzPU_d4sl6yst0wu6io”;
私有ArrayList结果列表;
//建造师
public PlacesAutoCompleteAdapter(上下文上下文,int textViewResourceId){
super(上下文,textViewResourceId);
}
@凌驾
public int getCount(){
返回resultList.size();
}
@凌驾
公共字符串getItem(int索引){
返回resultList.get(索引);
}
@凌驾
公共过滤器getFilter(){
过滤器过滤器=新过滤器(){
@凌驾
受保护的筛选器结果性能筛选(CharSequence约束){
FilterResults FilterResults=新的FilterResults();
if(约束!=null){
//检索自动完成结果。
结果列表=自动完成(constraint.toString());
//将数据分配给FilterResults
filterResults.values=结果列表;
filterResults.count=resultList.size();
}
返回过滤器结果;
}
@凌驾
受保护的void publishResults(CharSequence约束,Filter.FilterResults结果){
if(results!=null&&results.count>0){
notifyDataSetChanged();
}否则{
notifyDataSetionValidated();
}
}
};
回流过滤器;
}
/**
*使用Google places自动完成文本输入
*
*@param input:AutoCompleteTextView的文本输入
*@returnarraylist
*/
专用ArrayList自动完成(字符串输入){
ArrayList resultList=null;
HttpURLConnection conn=null;
StringBuilder jsonResults=新建StringBuilder();
试一试{
StringBuilder sb=新的StringBuilder(PLACES\u API\u BASE+TYPE\u AUTOCOMPLETE+OUT\u JSON);
sb.追加(“?键=“+API\U浏览器\U键”);
sb.追加(“&components;=国家:de”);
sb.append(“&input=“+urlcoder.encode”(输入,“utf8”));
URL=新URL(sb.toString());
conn=(HttpURLConnection)url.openConnection();
InputStreamReader in=新的InputStreamReader(conn.getInputStream());
//将结果加载到StringBuilder中
int-read;
char[]buff=新字符[1024];
while((read=in.read(buff))!=-1){
附加(buff,0,read);
}
}捕获(格式错误){
e(标记“错误处理位置API URL”,e);
返回null;
}捕获(IOE异常){
Log.e(标记“连接到位置API时出错”,e);
返回null;
}最后{
如果(conn!=null){
连接断开();
}
}
试一试{
//根据结果创建JSON对象层次结构
JSONObject jsonObj=新的JSONObject(jsonResults.toString());
JSONArray predsjssonarray=jsonObj.getJSONArray(“预测”);
//从结果中提取位置描述
resultList=新的ArrayList(predsjSonaray.length());
对于(int i=0;i
同样,应用程序在使用Android棒棒糖的情况下不会崩溃,有人知道为什么它会在KitKat上崩溃吗?我的minsdk版本是16,targetSDKversion 21我以前在两种情况下观察到此错误: 1.我使用的是一个物理设备(即不是模拟器),它启用了带ART的Kitkat。当我用Dalvik runtime在另一台Kitkat设备上运行应用程序时,错误似乎消失了
2。将SVN移到另一个位置时发生的
.dex
生成错误导致了相同的问题。我完全删除了旧项目,并从计算机上的原始项目中创建了一个新的存储库,完全重建项目后,错误不再出现。请签入gradle此代码可能对您有帮助吗
德克斯选项{
javaMaxHeapSize“4g”
preDexLibraries=false
}如果您的应用程序类未实例化,则可能会发生这种情况。请仔细检查Menifest.xml以获取应用程序类条目。您的应用程序类应该如下所示:
public class AppController extends MultiDexApplication {
public void onCreate() {
super.onCreate();
}
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
MultiDex.install(this);
}
}
添加依赖项编译'com.android.support:multidex:1.0.1'
将
multiDexEnabled=true
选项添加到默认配置下的build.gradle:
defaultConfig {
applicationId "com.app"
minSdkVersion 19
targetSdkVersion 22
versionCode 1
versionName "1"
multiDexEnabled = true
}
就这样 感谢您的提示,我通过在我的构建中将
multiDexEnabled=true
更改为multiDexEnabled=false
解决了这个问题。gradlesave my day@ADM