我想创建如下所示的列表视图。
复选框 |文本视图 |文本视图 |文本视图 |文本视图 |文本视图 |文本视图 |
所有数据都来自数据库并设置在文本视图中。
我尝试过，但遇到了一些问题
当我选择复选框和滚动列表时，它会自动取消选中。
如果我选择第一个复选框，则会自动选中第五个复选框。
全部选中并取消全部选中
请帮助我，我尝试了很多代码，但没有成功。
提前致谢。
它可能会帮助你。
package com.Sample_MultipleSelection;
import java.util.ArrayList;
import android.R.integer;
import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.TextView;
public class Sample_MultipleSelectionActivity extends ListActivity {
private MyListAdapter adapter;
ArrayList<String> item_id = new ArrayList<String>();
ArrayList<String> item_name = new ArrayList<String>();
ArrayList<String> item_balance = new ArrayList<String>();
ArrayList<String> item_email = new ArrayList<String>();
ArrayList<String> items = new ArrayList<String>();
private CheckBox chk_main;
boolean flag = false;
boolean[] selection;
ArrayList<String> selection_val;
private Button btn_select;
private CheckBox chk_select;
ViewHolder holder12;
boolean select_all;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
item_id.add("1");
item_name.add("China");
item_balance.add("4000");
item_email.add("[email protected] /cdn-cgi/l/email-protection");
item_id.add("2");
item_name.add("abc");
item_balance.add("4000");
item_email.add("[email protected] /cdn-cgi/l/email-protection");
item_id.add("3");
item_name.add("xyz");
item_balance.add("4000");
item_email.add("[email protected] /cdn-cgi/l/email-protection");
item_id.add("4");
item_name.add("xyza");
item_balance.add("40070");
item_email.add("[email protected] /cdn-cgi/l/email-protection");
item_id.add("5");
item_name.add("xyzc");
item_balance.add("1000");
item_email.add("[email protected] /cdn-cgi/l/email-protection");
final ViewHolder holder = new ViewHolder();
selection = new boolean[item_id.size()];
selection_val = new ArrayList<String>();
adapter = new MyListAdapter(this);
setListAdapter(adapter);
holder12 = new ViewHolder();
btn_select = (Button) findViewById(R.id.button1);
btn_select.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
int len = selection.length;
int cnt = 0;
String selectIds = "";
for (int i = 0; i < len; i++) {
if (selection[i]) {
cnt++;
}
}
for (int i = 0; i < selection_val.size(); i++) {
selectIds = selectIds + " | " + selection_val.get(i);
}
if (cnt == 0) {
Toast.makeText(getApplicationContext(), "NO Selection", 1)
.show();
} else {
Toast.makeText(
getApplicationContext(),
"Your are Selected " + cnt + " ids. " + " "
+ selectIds, 1).show();
}
}
});
}
public class MyListAdapter extends BaseAdapter {
Context con;
private LayoutInflater layoutinf;
ArrayList<Boolean> itemChecked = new ArrayList<Boolean>();
ArrayList<String> items_ = new ArrayList<String>();
public MyListAdapter(
Sample_MultipleSelectionActivity sample_MultipleSelectionActivity) {
con = sample_MultipleSelectionActivity;
}
public int getCount() {
return item_id.size();
}
public Object getItem(int arg0) {
return item_id.size();
}
public long getItemId(int arg0) {
return item_id.get(arg0).hashCode();
}
public View getView(final int arg0, View arg1, ViewGroup arg2) {
View v = arg1;
ViewHolder holder = null;
if (v == null) {
layoutinf = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = layoutinf.inflate(R.layout.row, null);
holder = new ViewHolder();
holder.chk = (CheckBox) v.findViewById(R.id.checkBox1);
holder.tv_name = (TextView) v.findViewById(R.id.textView1);
holder.tv_bal = (TextView) v.findViewById(R.id.textView2);
holder.tv_email = (TextView) v.findViewById(R.id.textView3);
v.setTag(holder);
} else {
holder = (ViewHolder) v.getTag();
}
holder.chk.setId(arg0);
holder.tv_name.setId(arg0);
holder.chk.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
try {
CheckBox cb = (CheckBox) v;
int id = cb.getId();
String val = cb.getText().toString();
if (selection[id]) {
cb.setChecked(false);
selection[id] = false;
selection_val.remove("" + val);
} else {
cb.setChecked(true);
selection[id] = true;
selection_val.add("" + val);
}
adapter.notifyDataSetChanged();
} catch (Exception e) {
Log.e("error", "" + e.toString());
}
}
});
holder.chk.setChecked(selection[arg0]);
if(selection[arg0] == true)
{
holder.tv_name.setBackgroundColor(Color.GRAY);
holder.tv_bal.setBackgroundColor(Color.GRAY);
holder.tv_email.setBackgroundColor(Color.GRAY);
}
else
{
holder.tv_name.setBackgroundColor(Color.TRANSPARENT);
holder.tv_bal.setBackgroundColor(Color.TRANSPARENT);
holder.tv_email.setBackgroundColor(Color.TRANSPARENT);
}
holder.chk.setText(item_id.get(arg0));
holder.tv_name.setText("" + item_name.get(arg0));
holder.tv_bal.setText(item_balance.get(arg0));
holder.tv_email.setText(item_email.get(arg0));
return v;
}
}
public class ViewHolder {
private CheckBox chk;
private TextView tv_name;
private TextView tv_bal;
private TextView tv_email;
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<CheckBox
android:id="@+id/chk_main"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:focusable="false"
android:text="" />
<TextView
android:id="@+id/textView1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="Name"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#66cc33" />
<TextView
android:id="@+id/textView2"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="Balance"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#66cc33" />
<TextView
android:id="@+id/textView3"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="Email-Id"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#66cc33" />
</LinearLayout>
<View
android:id="@+id/view1"
android:layout_width="wrap_content"
android:layout_height="2dp"
android:background="#fff" />
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="314dp"
android:layout_weight="1" >
</ListView>
<Button
android:id="@+id/button1"
android:focusable="false"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="select" />
</LinearLayout>
row.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal">
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000" />
<TextView
android:id="@+id/textView1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:padding="3dp"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:padding="3dp"
android:id="@+id/textView2"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:padding="3dp"
android:id="@+id/textView3"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
如果正确的话就改正它。
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