我在运行时添加ListView
,如下所示:
MainMenue = getResources().getStringArray(R.array.Unit);
// remove all controls
LinearLayout formLayout = (LinearLayout)findViewById(R.id.submenue);
formLayout.removeAllViews();
menueview = new ListView(getApplicationContext());
menueview.setVisibility(ListView.VISIBLE);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.RIGHT;
menueview.setLayoutParams(params);
menueview.setAdapter(new submenueadapter(menueview.getContext(), MainMenue));
// Set the on Item
SetMenueOnClick() ;
formLayout.addView(menueview);
然后我添加一个项目点击监听器,如下所示:
public void SetMenueOnClick() {
menueview.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
final String text = (String) ((TextView)view).getText();
}
});
}
但后来我有一个错误:
06-03 10:59:25.862: E/AndroidRuntime(14732): at android.view.ViewRoot.handleMessage(ViewRoot.java:2109)
android.widget.LinearLayout cannot be cast to android.widget.TextView
在这一行:
final String text = (String) ((TextView)view).getText();
知道如何获取此问题的文字吗?适配器看起来像这样:
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = inflater.inflate(R.layout.shortmenue, parent, false);
TextView textView = (TextView) rowView.findViewById(R.id.contents);
textView.setText(values[position]);
// Change icon based on name
String s = values[position];
System.out.println(s);
rowView.setBackgroundResource(R.drawable.alternate_list_color);
return rowView;
}
和R.layout.shortmenue
很简单,只有TextView
如下:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/contents"
android:textSize="34dp"
/>
</LinearLayout>
答案 0 :(得分:19)
您的行是由TextView
包裹的LinearLayout
,因此您可能希望这样做:
LinearLayout ll = (LinearLayout) view; // get the parent layout view
TextView tv = (TextView) ll.findViewById(R.id.contents); // get the child text view
final String text = tv.getText().toString();
答案 1 :(得分:9)
如果您遇到类似问题,但确定已定位到linearLayout:
删除文件 gen / your.app.package / R.java。
这是因为xml错误,当您删除R.java时,它将在下一次构建/运行时重新创建。
答案 2 :(得分:1)
我刚添加了android:id =&#34; @ + id / my_layout&#34;包含TextView并解决了类似问题的LinearLayout。
答案 3 :(得分:0)
我遇到了同样的问题,我只是重命名了插入的视图对象。
像这样:
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/newTextViewName"
android:textSize="34dp"
/>
答案 4 :(得分:0)
在我的例子中,XML包含TextView,但我写错了
final TextView text = (TextView) inflater.inflate(R.layout.item_text, layout);
而不是
final TextView text = (TextView) inflater.inflate(R.layout.item_text, layout, false);
答案 5 :(得分:0)
您可以通过替换
来解决此问题TextView temp= (TextView) view.findViewById(R.id.textView);
与
id
这适合我。