【发布时间】：2013-04-24 11:49:55
【问题描述】：
我正在为我正在制作的应用程序制作菜单列表。我按照本教程创建它（根据需要更改值）-http://www.ezzylearning.com/tutorial.aspx?tid=1763429。
现在我的清单不是很复杂。每次都会有相同的数据，而且只有两个部分。到目前为止，我的列表工作正常，但我需要用 xml 中的不同视图/布局替换第 7 项或添加该视图。
当前代码....
主要活动：
import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;
public class HU_main extends Activity {
private ListView f_menu;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.hu_main);
Front_menu front_menu_data[] = new Front_menu[] {
new Front_menu("Cadences", "Reference chart of all the primary cadences."),
new Front_menu("Chords and Non-Chord Tones", "Reference chart of chord types and non-chord tones and associated rules of NCTs."),
new Front_menu("Key Signatures", "Reference chart for key signature rules."),
new Front_menu("Scale/Mode Triads", "List of triads and degrees for all standard diatonic scale modes."),
new Front_menu("Harmonic Progression", "Reference chart for scale and mode chord progressions."),
new Front_menu("Terminology Translation", "Reference list if primary music terms and instruments in German, Italian and French."),
new Front_menu("Replace", "Replace"),
new Front_menu("Chord Finder", "Enter notes to find chords."),
new Front_menu("Modulation", "Reference chart of chord types and non-chord tones and associated rules of NCTs."),
new Front_menu("Scale Finder", "Find scales and modes by notes."),
new Front_menu("Transposition", "Show changes to and from concert pitch for transposing instruments or determine overall transposition of key.")
};
Front_menuAdapter adapter = new Front_menuAdapter(this,
R.layout.item_layout, front_menu_data);
f_menu = (ListView)findViewById(R.id.f_menu);
f_menu.setAdapter(adapter);
}
}
Front_menuAdapter：
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
public class Front_menuAdapter extends ArrayAdapter<Front_menu> {
Context context;
int layoutResourceId;
Front_menu data[] = null;
public Front_menuAdapter(Context context, int layoutResourceId, Front_menu[] data) {
super(context, layoutResourceId, data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
Front_menuHolder holder = null;
if (row == null) {
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
holder = new Front_menuHolder();
holder.txtTitle1 = (TextView)row.findViewById(R.id.menu_item);
holder.txtTitle2 = (TextView)row.findViewById(R.id.item_description);
holder.header2 = (TextView)row.findViewById(R.id.tools_header);
row.setTag(holder);
if (position != 6) {
holder.txtTitle1.setVisibility(View.VISIBLE);
holder.txtTitle2.setVisibility(View.VISIBLE);
holder.header2.setVisibility(View.GONE);
}
else if (position == 6) {
holder.header2.setVisibility(View.VISIBLE);
holder.txtTitle1.setVisibility(View.GONE);
holder.txtTitle2.setVisibility(View.GONE);
}
}
else {
holder = (Front_menuHolder)row.getTag();
}
Front_menu front_menu = data[position];
holder.txtTitle1.setText(front_menu.item);
holder.txtTitle2.setText(front_menu.desc);
return row;
}
class Front_menuHolder {
TextView txtTitle1;
TextView txtTitle2;
TextView header2;
}
}
Front_menu (constructor):
public class Front_menu {
public String item;
public String desc;
public Front_menu() {
super();
}
public Front_menu(String item, String desc) {
super();
this.item = item;
this.desc = desc;
}
}
【问题讨论】：
标签： android android-listview android-adapter android-adapterview