我正在開發一個項目,並且希望從列表視圖中獲取所選項目的複選框(複選框)。 有沒有辦法做到這一點? 目前爲止的代碼如下;在列表視圖中查找選中的複選框Android
主要活動
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.ListView;
public class MainActivity extends Activity {
ListView lv;
Model[] modelItems;
CheckBox ONE,TWO,THREE;
Button MultiData;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView) findViewById(R.id.listView1);
modelItems = new Model[5];
modelItems[0] = new Model("pizza", 0);
modelItems[1] = new Model("burger", 0);
modelItems[2] = new Model("olives", 0);
modelItems[3] = new Model("orange", 0);
modelItems[4] = new Model("tomato", 0);
CustomAdapter adapter = new CustomAdapter(this, modelItems);
lv.setAdapter(adapter);
}
}
CustomAdapter
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.CheckBox;
import android.widget.TextView;
import java.util.ArrayList;
public class CustomAdapter extends ArrayAdapter {
Model[] modelItems = null;
Context context;
public CustomAdapter(Context context, Model[] resource) {
super(context, R.layout.row1, resource);
this.context = context;
this.modelItems = resource;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
convertView = inflater.inflate(R.layout.row1, parent, false);
TextView name = (TextView) convertView.findViewById(R.id.textView1);
CheckBox cb = (CheckBox) convertView.findViewById(R.id.checkBox1);
name.setText(modelItems[position].getName());
if (modelItems[position].getValue() == 1)
cb.setChecked(true);
else
cb.setChecked(false);
return convertView;
}
}
模型
public class Model{
String name;
int value; /* 0 -> checkbox disable, 1 -> checkbox enable */
Model(String name, int value){
this.name = name;
this.value = value;
}
public String getName(){
return this.name;
}
public int getValue(){
return this.value;
}
}
main_xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
row1.xml
<?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"
android:orientation="horizontal" >
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</LinearLayout>
Eidt1在主要活動
boolean modelItemBool[] = new boolean[modelItems.length];
for (int h =0;h<modelItemBool.length;h++){
modelItemBool[h] = false;
}
Eidt 2
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
convertView = inflater.inflate(R.layout.row1, parent, false);
TextView name = (TextView) convertView.findViewById(R.id.textView1);
CheckBox cb = (CheckBox) convertView.findViewById(R.id.checkBox1);
name.setText(modelItems[position].getName());
cb.setOnCheckedChangeListener(new
CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
modelItems[position].getValue() == 1;
}else{
modelItems[position].getValue() == 0;
}
}
});
return convertView;
}
你必須記錄檢查位置,一旦他們得到遏制,在聽衆進行更新。您不能從ListView中獲取所有視圖,因爲它們正在被重用。 –
可能重複的[使用列表視圖中的複選框獲取選定的項目](http://stackoverflow.com/questions/18162931/get-selected-item-using-checkbox-in-listview) –
@VladMatvienko我怎樣才能'記錄檢查一旦他們被檢查了嗎? – user6750923