您好我是Android开发的新手，我正在尝试使用自定义适配器在列表视图中显示一些文本，当我在手机上运行应用程序时崩溃......
这是我的Adapter类：
public class EarthquakeAdapter extends ArrayAdapter<Earthquake> {
private TextView magnitude;
private TextView location;
private TextView date;
public EarthquakeAdapter(@NonNull Context context, ArrayList<Earthquake> resource) {
super(context, 0, resource);
}
public View getview(int position, View convertView, ViewGroup parent) {
// Check if the existing view is being reused, otherwise inflate the view
Earthquake CurrentEarthquake = (Earthquake)getItem(position);
View listItemView = convertView;
if (listItemView == null) {
listItemView = LayoutInflater.from(getContext()).inflate(R.layout.list_item, parent, false);
}
magnitude = (TextView) listItemView.findViewById(R.id.magnitude);
magnitude.setText((int) CurrentEarthquake.getMagnitude());
location = listItemView.findViewById(R.id.location);
location.setText(CurrentEarthquake.getLocation());
date = listItemView.findViewById(R.id.date);
date.setText(CurrentEarthquake.getDate());
return listItemView;
}
}
这是我的logcat：
01-30 23:34:38.508 11110-11110/com.example.itis.quakereportapp
E/System: stat file error, path is
/data/app/com.example.itis.quakereportapp-1/lib/arm64, exception is
android.system.ErrnoException: stat failed: ENOENT (No such file or
directory)
01-30 23:34:38.888 11110-11134/com.example.itis.quakereportapp E/GED:
Failed to get GED Log Buf, err(0)
[
01-30 23:34:38.888 11110:11134 I/ ]
elapse(include ctx switch):4357 (ms), eglInitialize
01-30 23:34:38.890 11110-11110/com.example.itis.quakereportapp
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.itis.quakereportapp, PID: 11110
android.content.res.Resources$NotFoundException: Resource ID #0x0
at android.content.res.Resources.getValue(Resources.java:1490)
at
android.content.res.Resources.loadXmlResourceParser(Resources.java:3060)
at android.content.res.Resources.getLayout(Resources.java:1264)
at android.view.LayoutInflater.inflate(LayoutInflater.java:418)
at
android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:371)
at android.widget.ArrayAdapter.getView(ArrayAdapter.java:362)
at android.widget.AbsListView.obtainView(AbsListView.java:2572)
at android.widget.ListView.makeAndAddView(ListView.java:1956)
at android.widget.ListView.fillDown(ListView.java:757)
at android.widget.ListView.fillFromTop(ListView.java:822)
at android.widget.ListView.layoutChildren(ListView.java:1751)
at android.widget.AbsListView.onLayout(AbsListView.java:2326)
at android.view.View.layout(View.java:16121)
at android.view.ViewGroup.layout(ViewGroup.java:5185)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1959)
at
android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1948)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1724)
at android.view.View.layout(View.java:16121)
at android.view.ViewGroup.layout(ViewGroup.java:5185)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:639)
at android.widget.FrameLayout.onLayout(FrameLayout.java:574)
at android.view.View.layout(View.java:16121)
at android.view.ViewGroup.layout(ViewGroup.java:5185)
at android.support.v7.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:443)
at android.view.View.layout(View.java:16121)
at android.view.ViewGroup.layout(ViewGroup.java:5185)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:639)
at android.widget.FrameLayout.onLayout(FrameLayout.java:574)
at android.view.View.layout(View.java:16121)
at android.view.ViewGroup.layout(ViewGroup.java:5185)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1959)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1813)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1722)
at android.view.View.layout(View.java:16121)
at android.view.ViewGroup.layout(ViewGroup.java:5185)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:639)
at android.widget.FrameLayout.onLayout(FrameLayout.java:574)
at android.view.View.layout(View.java:16121)
at android.view.ViewGroup.layout(ViewGroup.java:5185)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2532)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2226)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1323)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6686)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:800)
at android.view.Choreographer.doCallbacks(Choreographer.java:603)
at android.view.Choreographer.doFrame(Choreographer.java:572)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:786)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5834)
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:1119)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:885)
我是Android开发的新手，我正在尝试使用自定义适配器在listview中显示一些文本，当我在手机上运行应用程序时崩溃...
答案 0 :(得分：2)
我认为问题是magnitude.setText((int)CurrentEarthquake.getMagnitude());，因为setText Int String必须magnitude.setText(((int)CurrentEarthquake.getMagnitude())+"");，所以你可以写groupby希望帮助你。
答案 1 :(得分：0)
我知道这对我很愚蠢，但我发现了问题......
在我的适配器代码中使用了方法
getview
虽然它意味着
getView
我还了解了这个方法在这里的实际运作方式how getView works
谢谢大家的帮助