public class MainActivity extends AppCompatActivity { |
private ArrayList<ListItem> listItems; |
private Button button1; |
private Button button2; |
private Button button3; |
boolean flag = false ; |
private ListView listView; |
@Override |
protected void onCreate(Bundle savedInstanceState) { |
super .onCreate(savedInstanceState); |
setContentView(R.layout.activity_main); |
listView = (ListView) findViewById(R.id.lv); |
listItems = new ArrayList<ListItem>(); |
for ( int i = 0 ; i < 20 ; i++) { |
listItems.add( new ListItem( false , false , "item" +i+ "" )); |
} |
final MyAdapter myAdapter = new MyAdapter(); |
listView.setAdapter(myAdapter); |
button1 = (Button) findViewById(R.id.button1); |
button2 = (Button) findViewById(R.id.button2); |
button3 = (Button) findViewById(R.id.button3); |
button1.setOnClickListener( new View.OnClickListener() { |
@Override |
public void onClick(View v) { |
for ( int i = 0 ; i < listItems.size(); i++) { |
listItems.get(i).setCheck( true ); |
} |
myAdapter.notifyDataSetChanged(); |
} |
}); |
button3.setOnClickListener( new View.OnClickListener() { |
@Override |
public void onClick(View v) { |
for ( int i = 0 ; i < listItems.size(); i++) { |
listItems.get(i).setCheck( false ); |
} |
myAdapter.notifyDataSetChanged(); |
} |
}); |
button2.setOnClickListener( new View.OnClickListener() { |
@Override |
public void onClick(View v) { |
flag = !flag; |
if (flag) { |
button2.setText( "取消隐藏" ); |
} else { |
button2.setText( "隐藏选中" ); |
} |
myAdapter.notifyDataSetChanged(); |
} |
}); |
} |
class MyAdapter extends BaseAdapter{ |
@Override |
public int getCount() { |
return listItems.size(); |
} |
@Override |
public Object getItem( int position) { |
return null ; |
} |
@Override |
public long getItemId( int position) { |
return 0 ; |
} |
@Override |
public View getView( final int position, View convertView, ViewGroup parent) { |
if (convertView == null ) { |
convertView = View.inflate(MainActivity. this ,R.layout.list_item, null ); |
} |
final TextView textView_list_item = (TextView) convertView.findViewById(R.id.textView_list_item); |
final CheckBox checkBox_list_item = (CheckBox) convertView.findViewById(R.id.checkBox_list_item); |
textView_list_item.setText(listItems.get(position).getText()); |
checkBox_list_item.setOnCheckedChangeListener( new CompoundButton.OnCheckedChangeListener() { |
@Override |
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { |
listItems.get(position).setCheck(isChecked); |
listItems.get(position).setHide(isChecked); |
if (flag) { |
notifyDataSetChanged(); |
} |
} |
}); |
checkBox_list_item.setChecked(listItems.get(position).isCheck()); |
if (listItems.get(position).isHide() && flag) { |
checkBox_list_item.setVisibility(View.INVISIBLE); |
textView_list_item.setVisibility(View.INVISIBLE); |
} else { |
checkBox_list_item.setVisibility(View.VISIBLE); |
textView_list_item.setVisibility(View.VISIBLE); |
} |
return convertView; |
} |
} |
} |
package baway.com.chcekboxdemo; |
/** |
* Created by hasee bean. |
*/ |
public class ListItem { |
private boolean isHide; |
private boolean isCheck; |
private String text; |
public void setHide( boolean hide) { |
isHide = hide; |
} |
public void setCheck( boolean check) { |
isCheck = check; |
} |
public boolean isHide() { |
return isHide; |
} |
public boolean isCheck() { |
return isCheck; |
} |
public String getText() { |
return text; |
} |
public void setText(String text) { |
this .text = text; |
} |
public ListItem( boolean isHide, boolean isCheck, String text) { |
this .isHide = isHide; |
this .isCheck = isCheck; |
this .text = text; |
} |
} |
。。。。。 |
<?xml version= "1.0" encoding= "utf-8" ?> |
<RelativeLayout xmlns:android= "http://schemas.android.com/apk/res/android" |
xmlns:tools= "http://schemas.android.com/tools" |
android:id= "@+id/activity_main" |
android:layout_width= "match_parent" |
android:layout_height= "match_parent" |
> |
<Button |
android:text= "全选" |
android:layout_width= "wrap_content" |
android:layout_height= "wrap_content" |
android:id= "@+id/button1" |
/> |
<Button |
android:text= "点击隐藏" |
android:layout_width= "wrap_content" |
android:layout_height= "wrap_content" |
android:id= "@+id/button2" |
android:layout_toRightOf= "@id/button1" /> |
<Button |
android:text= "反选" |
android:layout_width= "wrap_content" |
android:layout_height= "wrap_content" |
android:id= "@+id/button3" |
android:layout_toRightOf= "@id/button2" /> |
<ListView |
android:layout_width= "wrap_content" |
android:layout_height= "wrap_content" |
android:id= "@+id/lv" |
android:layout_below= "@id/button2" ></ListView> |
</RelativeLayout> |
08 : 03 : 32 |
<?xml version= "1.0" encoding= "utf-8" ?> |
<LinearLayout xmlns:android= "http://schemas.android.com/apk/res/android" |
android:layout_width= "match_parent" |
android:layout_height= "match_parent" > |
<CheckBox |
android:text= "CheckBox" |
android:layout_width= "wrap_content" |
android:layout_height= "wrap_content" |
android:id= "@+id/checkBox_list_item" |
android:layout_weight= "1" /> |
<TextView |
android:text= "TextView" |
android:layout_width= "wrap_content" |
android:layout_height= "wrap_content" |
android:id= "@+id/textView_list_item" |
android:layout_weight= "1" /> |
</LinearLayout> |
by: 发表于:2017-09-27 09:59:46 顶(0) | 踩(0) 回复
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