Android 视图在一段时间后从Listview消失
嗨,在我的项目中,我正在使用一个自定义适配器。当包含listview的活动打开时,图像视图和文本视图首先出现,一段时间后视图出现。我找不到解决方案。你知道吗? 编辑: 它也可以在模拟器上工作,但不能在普通设备上工作 我在其中设置适配器的类:Android 视图在一段时间后从Listview消失,android,listview,android-listview,android-arrayadapter,custom-adapter,Android,Listview,Android Listview,Android Arrayadapter,Custom Adapter,嗨,在我的项目中,我正在使用一个自定义适配器。当包含listview的活动打开时,图像视图和文本视图首先出现,一段时间后视图出现。我找不到解决方案。你知道吗? 编辑: 它也可以在模拟器上工作,但不能在普通设备上工作 我在其中设置适配器的类: protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activit
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_person_deatil);
Intent detailIntent = getIntent();
Gson gson = new Gson();
String obj = detailIntent.getStringExtra("obj");
PeopleListItem people = gson.fromJson(obj, PeopleListItem.class);
ListView lw = (ListView) findViewById(R.id.perdetLw);
PeopleListItem[] list = new PeopleListItem[6];
for(int i=0; i<6; i++){
list[i] = people;
}
ActionBar ab = getActionBar();
ab.setDisplayHomeAsUpEnabled(true);
ab.setTitle(people.getName());
ab.setIcon(R.drawable.ic_action_person);
PeopleDetailArrayAdapter adp = new PeopleDetailArrayAdapter(this, R.layout.person_detail_item, list);
lw.setAdapter(adp);
}
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\u person\u deatil);
Intent detailIntent=getIntent();
Gson Gson=新的Gson();
stringobj=detailIntent.getStringExtra(“obj”);
PeopleListItem people=gson.fromJson(obj,PeopleListItem.class);
ListView lw=(ListView)findViewById(R.id.perdetLw);
PeopleListItem[]列表=新建PeopleListItem[6];
对于(int i=0;i我通过使用position
而不是使用count
public class PeopleDetailArrayAdapter extends ArrayAdapter<PeopleListItem> {
int resource;
Context context;
public PeopleDetailArrayAdapter(Context context, int resource,
PeopleListItem[] list) {
super(context, resource, list);
this.resource = resource;
this.context = context;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
final PeopleListItem peopleObj = getItem(position);
LayoutInflater layoutInflator = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View listViewItem = layoutInflator.inflate(resource, null);
final TextView textView = (TextView) listViewItem.findViewById(R.id.detailTw);
final TextView textView1 = (TextView) listViewItem.findViewById(R.id.detailTw1);
switch (position) {
case 0:
textView.setText("Title");
String title = peopleObj.getTitle();
textView1.setText(title);
break;
case 1:
textView.setText("Department");
String dep = peopleObj.getDepart();
textView1.setText(dep);
break;
case 2:
textView.setText("Work");
String wp = peopleObj.getWorkPhone();
textView1.setText(wp);
break;
case 3:
textView.setText("Mobile");
String mp = peopleObj.getMobilePhone();
textView1.setText(mp);
break;
case 4:
textView.setText("Email");
String email = peopleObj.getEmail();
textView1.setText(email);
break;
case 5:
textView.setText("Manager");
String man = peopleObj.getManager();
textView1.setText(man);
break;
}
return listViewItem;
}
公共类PeopleDetailArrayAdapter扩展了ArrayAdapter{
智力资源;
语境;
public PeopleDetailArrayAdapter(上下文、内部资源、,
PeopleListItem[]列表){
超级(上下文、资源、列表);
这个资源=资源;
this.context=上下文;
}
@凌驾
公共视图getView(int位置、视图转换视图、视图组父视图){
//TODO自动生成的方法存根
最终PeopleListItem peopleObj=getItem(位置);
LayoutInflater layoutInflator=(LayoutInflater)context.getSystemService(context.LAYOUT\u INFLATER\u SERVICE);
View listViewItem=LayoutFlator.inflate(资源,空);
最终文本视图文本视图=(文本视图)listViewItem.findViewById(R.id.detailTw);
最终文本视图文本视图1=(文本视图)listViewItem.findViewById(R.id.detailTw1);
开关(位置){
案例0:
textView.setText(“标题”);
字符串title=peopleObj.getTitle();
textView1.setText(标题);
打破
案例1:
textView.setText(“部门”);
字符串dep=peopleObj.getDeep();
textView1.setText(dep);
打破
案例2:
setText(“工作”);
字符串wp=peopleObj.getWorkPhone();
textView1.setText(wp);
打破
案例3:
textView.setText(“移动”);
字符串mp=peopleObj.getMobilePhone();
textView1.setText(mp);
打破
案例4:
textView.setText(“电子邮件”);
字符串email=peopleObj.getEmail();
textView1.setText(电子邮件);
打破
案例5:
textView.setText(“管理器”);
String man=peopleObj.getManager();
textView1.setText(男子);
打破
}
返回listViewItem;
}
}为什么要将列表
的所有元素分配给同一个人
变量?为了不浪费创建布局的时间,我为一行创建了一个简单的布局,其中包含了我需要的所有内容。您可以使用ViewHolder模式来获得更好的性能。@calypso在代码中,您的listview应该是这样的:第1行-仅标题,第2行-仅标题第三排,仅限工作电话等。listview的设计非常奇怪,frankly@mangusta是的,你是对的,正如我在问题中所说的,我看到了这些,然后消失了。
public class PeopleDetailArrayAdapter extends ArrayAdapter<PeopleListItem> {
int resource;
Context context;
public PeopleDetailArrayAdapter(Context context, int resource,
PeopleListItem[] list) {
super(context, resource, list);
this.resource = resource;
this.context = context;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
final PeopleListItem peopleObj = getItem(position);
LayoutInflater layoutInflator = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View listViewItem = layoutInflator.inflate(resource, null);
final TextView textView = (TextView) listViewItem.findViewById(R.id.detailTw);
final TextView textView1 = (TextView) listViewItem.findViewById(R.id.detailTw1);
switch (position) {
case 0:
textView.setText("Title");
String title = peopleObj.getTitle();
textView1.setText(title);
break;
case 1:
textView.setText("Department");
String dep = peopleObj.getDepart();
textView1.setText(dep);
break;
case 2:
textView.setText("Work");
String wp = peopleObj.getWorkPhone();
textView1.setText(wp);
break;
case 3:
textView.setText("Mobile");
String mp = peopleObj.getMobilePhone();
textView1.setText(mp);
break;
case 4:
textView.setText("Email");
String email = peopleObj.getEmail();
textView1.setText(email);
break;
case 5:
textView.setText("Manager");
String man = peopleObj.getManager();
textView1.setText(man);
break;
}
return listViewItem;
}