我是Android新手，我试图显示ListView，但每次启动我的应用程序时它都会停止。我已经试图解决我的问题几个小时，但我没有发现什么是错的。提前感谢任何能够解释我的问题的人。这是我的main_activity类：
public TextView textView;
public int count = 0;
public ListView listView;
public Context context;
public List<HashMap<String,String>> list = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context = getApplicationContext();
textView = (TextView)findViewById(R.id.text);
listView = (ListView)findViewById(R.id.listView);
Button button = (Button)findViewById(R.id.button);
button.setOnClickListener(new OnClickListener(){
public void onClick(View v){
count++;
addLine(count);
textView.setText(String.valueOf(count));
}
});
}
void addLine(int counter){
if(counter>0){
HashMap<String,String> hashMap = new HashMap<String,String>();
for(int i=0;i < counter;i++){
hashMap.clear();
hashMap.put(String.valueOf(i),"test" + String.valueOf(i));
list.add(hashMap);
}
String[] from = {"first","second"};
int[] to = {android.R.layout.simple_list_item_1, android.R.layout.simple_list_item_2 };
SimpleAdapter simpleAdapter = new SimpleAdapter(context,list,R.id.listView, from, to );
listView.setAdapter(simpleAdapter);
}
}
Activity_main.xml和我的logcat：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/myLayout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="8dp">
<Button android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="10"
android:text="@string/buttonName" />
<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="20"
android:text="test"/>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="70"
android:padding="8dp" >
<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="10" />
</LinearLayout>
</LinearLayout>
09-23 11:01:36.418 13592-13592/com.example.cem.myapplication E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.cem.myapplication, PID: 13592
android.content.res.Resources$NotFoundException: Resource ID #0x7f0b0061 type #0x12 is not valid
at android.content.res.Resources.loadXmlResourceParser(Resources.java:2138)
at android.content.res.Resources.getLayout(Resources.java:1142)
at android.view.LayoutInflater.inflate(LayoutInflater.java:421)
at android.widget.SimpleAdapter.createViewFromResource(SimpleAdapter.java:128)
at android.widget.SimpleAdapter.getView(SimpleAdapter.java:121)
at android.widget.AbsListView.obtainView(AbsListView.java:2372)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1408)
at android.widget.ListView.onMeasure(ListView.java:1315)
at android.view.View.measure(View.java:21998)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6580)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
at android.view.View.measure(View.java:21998)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6580)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
at android.view.View.measure(View.java:21998)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6580)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139)
at android.view.View.measure(View.java:21998)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6580)
at android.support.v7.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:393)
at android.view.View.measure(View.java:21998)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6580)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:21998)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6580)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
at android.view.View.measure(View.java:21998)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6580)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:721)
at android.view.View.measure(View.java:21998)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2410)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1498)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1751)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1386)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6733)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
at android.view.Choreographer.doCallbacks(Choreographer.java:723)
at android.view.Choreographer.doFrame(Choreographer.java:658)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
答案 0 :(得分：1)
您的to数组必须包含要在项目视图布局中绑定的视图ID（如果您使用Android资源中的简单项目布局，通常它们为android.R.id.text1和android.R.id.text2），而不是一些其他布局ID。