[英]How to add imageview inside textview or add textview inside imageview, android?
[英]How to add multiple textView and dynamic ImageView inside ListView Row
有人請以正確的方式指導我。
我有以下設計:main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/topSongs">
</ListView>
</RelativeLayout>
list.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView
android:id="@+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:src="@drawable/albumart_cocktail" />
<TextView
android:id="@+id/AlbumText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/imageView2"
android:layout_toRightOf="@+id/imageView2"
android:layout_marginLeft="5dp"
android:layout_marginTop="5dp"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/songText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/AlbumText"
android:layout_centerVertical="true"
android:textAppearance="?android:attr/textAppearanceSmall" />
</RelativeLayout>
活動代碼:
我有這個數組:
String[] AlbumText = {"Maximum", "Shangai", "Cocktail",
"Rowdy Rathore", "Bol Bachan"
};
String[] songText = {"Sunday", "Monday", "Tuesday",
"Wednesday", "Thursday"
};
並為特定歌曲提供5張圖片(專輯封面)。 我正在這樣設置數組:
setListAdapter(new ArrayAdapter<String>(this,
R.layout.list, R.id.songText, songText));
setListAdapter(new ArrayAdapter<String>(this,
R.layout.list, R.id.AlbumText, AlbumText));
我知道上述錯誤是錯誤的,我需要知道如何以正確的方式進行操作。
我的問題:我需要實現一個帶有2個textView和1個專輯封面的listView,為此,我使用了list.xml文件中的相對布局。 我至少知道如何將一個數組發送到textView中,我真的不知道如何更改特定行的圖像。
請有人以正確的方式指導我。
錯誤:
setListAdapter(new ArrayAdapter<String>(this,
R.layout.list, R.id.songText, songText));
setListAdapter(new ArrayAdapter<String>(this,
R.layout.list, R.id.AlbumText, AlbumText));
創建自定義適配器的建議/步驟:
是的,如果您擁有有關歌曲或專輯的10個詳細信息,那么您將創建10個Array還是Arraylist? 而是使用getter / setter方法創建一個自定義類,為特定項目創建對象,然后添加到ArrayList中。 因此,很容易管理除10個數組或ArrayList之外的單個ArrayList的單個詳細信息。
對於您要實現的目標,我相信您將需要實現自定義適配器。
而且我認為將適配器設置兩次是不正確的,因為只有最后一行才會生效。
您可以查看Android博客文章中的“ 構建自定義花式ListView”,以了解如何構建自定義適配器。
數組
String[] AlbumText = {"Maximum", "Shangai", "Cocktail", "Rowdy Rathore", "Bol Bachan"
};
String[] songText = {"Sunday", "Monday", "Tuesday","Wednesday", "Thursday"
};
// add values to adapter class like this
MobileArrayAdapter adapter = new MobileArrayAdapter(this, AlbumText , songText );
list.setAdapter(adapter);
list.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//here to use get values from adapter class and pass values use intent
Intent intent = new Intent(ListMobileActivity.this, Display.class);
intent.putExtra("AlbumText", one);
intent.putExtra("songText", two);
startActivity(intent);
}
}
});
}
顯示活動
message = getIntent().getExtras().getString("AlbumText");
message1 = getIntent().getExtras().getString("songText");
text.setText(message);
text1.setText(message1);
為了在列表視圖的單行中開發一個具有Imageview和多個textview的聯系人列表,我使用以下xml來定義listview中的每一行。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/pIcon"
android:layout_width="80dp"
android:layout_height="80dp"
android:contentDescription="@string/hello"
android:paddingBottom="10dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="10dp">
</ImageView>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_toRightOf="@+id/pIcon"
android:layout_alignBaseline="@+id/pIcon"
android:layout_alignTop="@+id/pIcon" >
<TextView
android:id="@+id/pName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello" />
<TextView
android:id="@+id/pNum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello" />
</LinearLayout>
我為列表視圖定義了一個自定義適配器。 自定義適配器的代碼是
public class ContactListAdapter extends BaseAdapter {
private ArrayList<ContactListItem> contactListItems;
private Context context;
public ContactListAdapter(ArrayList<ContactListItem> contactListItems,
Context context) {
this.contactListItems = contactListItems;
this.context = context;
}
@Override
public int getCount() {
return contactListItems.size();
}
@Override
public Object getItem(int arg0) {
return contactListItems.get(arg0);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.contact_list_item, null);
}
// references to the list items
TextView numTxt = (TextView) convertView.findViewById(R.id.pNum);
TextView nameTxt = (TextView) convertView.findViewById(R.id.pName);
ImageView peopleIcon = (ImageView) convertView.findViewById(R.id.pIcon);
// set the value of the list items
peopleIcon.setImageResource(contactListItems.get(position).getIcon());
nameTxt.setText(contactListItems.get(position).getName());
numTxt.setText(contactListItems.get(position).getNum());
return convertView;
}
}
為了獲得聯系人列表項,我定義了另一個類。 該類的代碼是
public class ContactListItem {
int pIcon;
String pNum;
String pName;
public ContactListItem() {
}
public ContactListItem(int pIcon, String pNum, String pName) {
this.pIcon = pIcon;
this.pNum = pNum;
this.pName = pName;
}
public int getIcon() {
return this.pIcon;
}
public String getNum() {
return this.pNum;
}
public String getName() {
return this.pName;
}
public void setIcon(int icon) {
this.pIcon = icon;
}
public void setNum(String num) {
this.pNum = num;
}
public void setName(String name) {
this.pName = name;
}
}
列表視圖是在一個片段中使用的,您可以輕松地在活動中使用它。
public class ContactFragment extends Fragment {
private ListView mContactList;
// array for the contact list
private String[] pNum;
private String[] pName;
private TypedArray pIcon;
private ArrayList<ContactListItem> contactListItems;
private ContactListAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// get the names of people in the contact list
pName = getResources().getStringArray(R.array.pNames);
// get the numbers of the people in the contact list
pNum = getResources().getStringArray(R.array.pNumbers);
// get the photos of the people in the list
pIcon = getResources().obtainTypedArray(R.array.pIcons);
// Initialise the contact list adapter
contactListItems = new ArrayList<ContactListItem>();
// add the items to array list
for (int i = 0; i < 5; i++) {
contactListItems.add(new ContactListItem(
pIcon.getResourceId(i, -1), pNum[i], pName[i]));
}
pIcon.recycle();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.contact_us_layout, container,
false);
return rootView;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
// set the title of the activity
((MainActivity) getActivity()).setTitle("CONTACT US");
// get a reference to the contact list
mContactList = (ListView) view.findViewById(R.id.contact_list);
adapter = new ContactListAdapter(contactListItems, getActivity());
mContactList.setAdapter(adapter);
}
}
如果有人希望看到該代碼以便可以在活動中使用它,請發表評論。
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