ListView
靜態(tài)的詞條匹配
通過(guò)android:entries屬性來(lái)創(chuàng)建
- 首先在res/values下創(chuàng)建arrays.xml文件
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/listView"
android:dividerHeight="30dp" 設(shè)置間隔寬度
android:divider="@color/colorAccent" 設(shè)置間隔顏色
android:fadingEdge="vertical" fadingEdge:拉滾動(dòng)條時(shí) ，邊框漸變的放向,變淡
android:fastScrollEnabled="true" 設(shè)置快速滾動(dòng)
android:entries="@array/name" 匹配靜態(tài)的數(shù)組
android:listSelector="#00ff00" 設(shè)置被選中列表的顏色
android:layout_alignParentStart="true"
android:layout_marginStart="24dp" />
- 加載到Activity
public class MainActivity extends AppCompatActivity {
private ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (ListView) findViewById(R.id.listView);
//添加時(shí)間監(jiān)聽(tīng)
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
TextView tv = (TextView) view;
Toast.makeText(MainActivity.this,tv.getText(),Toast.LENGTH_SHORT).show();
}
});
}
}
ListView專(zhuān)用的Activity：ListActivity
注意：對(duì)于 ListView專(zhuān)用的Activity：ListActivity來(lái)說(shuō)熊户，他不需要配置布局文件坞嘀，只需要有數(shù)據(jù)文件
- 首先在res/values下創(chuàng)建arrays.xml文件
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/listView"
android:dividerHeight="30dp" 設(shè)置間隔寬度
android:divider="@color/colorAccent" 設(shè)置間隔顏色
android:fadingEdge="vertical" fadingEdge:拉滾動(dòng)條時(shí) ，邊框漸變的放向,變淡
android:fastScrollEnabled="true" 設(shè)置快速滾動(dòng)
android:entries="@array/name" 匹配靜態(tài)的數(shù)組
android:listSelector="#00ff00" 設(shè)置被選中列表的顏色
android:layout_alignParentStart="true"
android:layout_marginStart="24dp" />
- Activity
public class Main3Activity extends ListActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//使用android提供的樣式
ArrayAdapter arrayAdapter = ArrayAdapter.createFromResource(this, R.array.name, android.R.layout.simple_list_item_1);
setListAdapter(arrayAdapter);
}
//設(shè)置事件監(jiān)聽(tīng)
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
Toast.makeText(this,((TextView)v).getText(),Toast.LENGTH_SHORT).show();
}
}
ListView和ListActivity單選框和多選框
- xml文件布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_main4ctivity"
tools:context="com.example.tianmengmeng.coding8.Main4ctivity">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listView2"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
- Activity
public class Main4ctivity extends AppCompatActivity {
private ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main4ctivity);
listView = (ListView) findViewById(R.id.listView2);
String[] arr = getResources().getStringArray(R.array.name);
//單選框
// ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_single_choice,arr);
// listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
//多選框
ArrayAdapter<String> arrayAdapter1 = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice,arr);
listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listView.setAdapter(arrayAdapter1);
}
}
ListView實(shí)現(xiàn)圖文列表
- xml布局文件
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_main5"
tools:context="com.example.tianmengmeng.coding8.Main5Activity">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listView3"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
- ListView每單元的布局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:padding="16dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView"
android:src="@drawable/ic_launcher"
android:layout_marginLeft="10dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/textView2" />
</LinearLayout>
- Activity
public class Main5Activity extends AppCompatActivity {
private ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main5);
listView = (ListView) findViewById(R.id.listView3);
//準(zhǔn)備數(shù)據(jù)独撇，每一個(gè)HashMap是一條記錄
//這倆個(gè)內(nèi)容對(duì)應(yīng)著Map的兩個(gè)key，"title"躁锁、"icon"
HashMap<String,Object> title1 = new HashMap<>();
title1.put("title","title-1");
title1.put("icon",android.R.drawable.alert_dark_frame);
HashMap<String,Object> title2 = new HashMap<>();
title2.put("title", "title-2");
title2.put("icon",android.R.drawable.arrow_up_float);
HashMap<String,Object> title3 = new HashMap<>();
title3.put("title", "title-3");
title3.put("icon",android.R.drawable.bottom_bar);
//適配器中是ArrayList類(lèi)型的數(shù)據(jù)纷铣，ArrayList中每條是ListView的一行數(shù)據(jù)
ArrayList<Map<String,Object>> list = new ArrayList<>();
list.add(title1);
list.add(title2);
list.add(title3);
//把數(shù)據(jù)填充到Adapter中
SimpleAdapter sa = new SimpleAdapter(this,list,R.layout.list_item_5,new String[]{"title","icon"},new int[]{R.id.textView2,R.id.imageView});
listView.setAdapter(sa);
}
}
| L | 文字Map | 圖片Map |
|---|---|---|
| I | 文字Map | 圖片Map |
| S | 文字Map | 圖片Map |
| T | 文字Map | 圖片Map |
自定義的ListView
- xml文件，添加ListView
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_main6"
tools:context="com.example.tianmengmeng.coding8.Main6Activity">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listView4"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
- 自定義的ListView每行的布局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:padding="16dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView"
android:src="@drawable/ic_launcher"
android:layout_marginLeft="10dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/textView2" />
</LinearLayout>
- Activity战转，綁定自定義的適配器
public class Main6Activity extends AppCompatActivity {
private ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main6);
listView = (ListView) findViewById(R.id.listView4);
listView.setAdapter(new MyAdapter(this));
}
static class MyAdapter extends BaseAdapter{
private String[] titles = {"title-1","title-2","title-3","title-4","title-5"};
private int[] icons = {android.R.drawable.ic_btn_speak_now,
android.R.drawable.alert_dark_frame,
android.R.drawable.alert_light_frame,
android.R.drawable.arrow_down_float,
android.R.drawable.arrow_up_float,
};
private Context context;
public MyAdapter(Context context){
this.context = context;
}
@Override
public int getCount() {
return titles.length;
}
@Override
public Object getItem(int position) {
return titles[position];
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
//獲取資源文件
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.list_item_6, null);
//獲取布局文件
TextView textView = (TextView) view.findViewById(R.id.textView2);
ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
//添加文字圖片到布局中
textView.setText(titles[position]);
imageView.setImageResource(icons[position]);
//返回視圖
return view;
}
}
}
