Android 使用按钮和对话框复选框的多选项目，并在列表视图中显示所选项目而不是按钮
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【中文标题】Android 使用按钮和对话框复选框的多选项目，并在列表视图中显示所选项目而不是按钮【英文标题】：Android Multiple select item using button and dialog checkbox and display the selected item in listview instead of button 【发布时间】：2016-02-07 17:17:46 【问题描述】：我正在尝试使用按钮和对话框复选框进行 android 多选项目，并在列表视图中显示所选项目（如图所示）而不是按钮（当前显示在按钮中：请参考图片）
我可以在下面的按钮中显示接收者，但我希望在列表视图中显示相同的内容：
从对话框复选框中选择后当前显示：
"Receiver1, Receiver2"
我想要喜欢：
image of Receiver1 with Receiver1 Name
image of Receiver2 with Receiver2 Name
SendServiceActivity.java
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.text.Layout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.widget.ImageView;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
public class SendServiceActivity extends AppCompatActivity implements View.OnClickListener
protected Button selectReceiversBtn;
protected CharSequence[] receivers =
"Receiver1", "Receiver2", "Receivers3";
protected ArrayList<CharSequence> selectedReceivers = new ArrayList<>();
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
selectReceiversBtn = (Button) findViewById(R.id.select_receivers);
selectReceiversBtn.setOnClickListener((View.OnClickListener) this);
@Override
public void onClick(View view)
switch(view.getId())
case R.id.select_receivers:
showSelectReceiversDialog();
break;
default:
break;
protected void onChangeSelectedReceivers()
StringBuilder stringBuilder = new StringBuilder();
for(CharSequence receivers : selectedReceivers)
stringBuilder.append(receivers + ",");
selectReceiversBtn.setText(stringBuilder.toString());
protected void showSelectReceiversDialog()
boolean[] checkedReceivers = new boolean[receivers.length];
int count = receivers.length;
for(int i = 0; i < count; i++)
checkedReceivers[i] = selectedReceivers.contains(receivers[i]);
DialogInterface.OnMultiChoiceClickListener receiversDialogListener = new DialogInterface.OnMultiChoiceClickListener()
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked)
if(isChecked)
selectedReceivers.add(receivers[which]);
else
selectedReceivers.remove(receivers[which]);
onChangeSelectedReceivers();
;
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder
.setTitle("Select Receivers")
.setMultiChoiceItems(receivers, checkedReceivers, receiversDialogListener)
.setCancelable(false)
.setPositiveButton("OK", new DialogInterface.OnClickListener()
public void onClick(DialogInterface dialog, int id)
dialog.dismiss();
);
AlertDialog dialog = builder.create();
dialog.show();
activity_main.xml
<LinearLayout
android:layout_
android:layout_
android:orientation="vertical">
<TextView
android:id="@+id/textView1"
android:layout_
android:layout_
android:padding="5dip"
android:text="Select Receivers" />
<Button
android:id="@+id/select_receivers"
android:layout_
android:layout_
android:padding="5dip"
android:text="- None Selected -" />
</LinearLayout>
【问题讨论】：
【参考方案1】：您的要求的完整源代码如下：
mainactivity.class
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.text.Layout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.widget.ImageView;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
public class MainActivity extends Activity implements View.OnClickListener
ArrayAdapter<CharSequence> adapter;
ListView listView1;
protected Button selectReceiversBtn;
protected CharSequence[] receivers =
"Receiver1", "Receiver2", "Receivers3";
protected ArrayList<CharSequence> selectedReceivers = new ArrayList<>();
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView1=(ListView) findViewById(R.id.listView1);
selectReceiversBtn = (Button) findViewById(R.id.select_receivers);
selectReceiversBtn.setOnClickListener((View.OnClickListener) this);
// String[] your_array = "a","b","c"
adapter = new ArrayAdapter<CharSequence>(this,
android.R.layout.simple_list_item_multiple_choice, selectedReceivers);
listView1.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listView1.setAdapter(adapter);
@Override
public void onClick(View view)
switch(view.getId())
case R.id.select_receivers:
showSelectReceiversDialog();
break;
default:
break;
protected void onChangeSelectedReceivers()
StringBuilder stringBuilder = new StringBuilder();
for(CharSequence receivers : selectedReceivers)
stringBuilder.append(receivers + ",");
adapter.notifyDataSetChanged();
//selectReceiversBtn.setText(stringBuilder.toString());
protected void showSelectReceiversDialog()
boolean[] checkedReceivers = new boolean[receivers.length];
int count = receivers.length;
for(int i = 0; i < count; i++)
checkedReceivers[i] = selectedReceivers.contains(receivers[i]);
DialogInterface.OnMultiChoiceClickListener receiversDialogListener = new DialogInterface.OnMultiChoiceClickListener()
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked)
if(isChecked)
selectedReceivers.add(receivers[which]);
else
selectedReceivers.remove(receivers[which]);
onChangeSelectedReceivers();
;
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder
.setTitle("Select Receivers")
.setMultiChoiceItems(receivers, checkedReceivers, receiversDialogListener)
.setCancelable(false)
.setPositiveButton("OK", new DialogInterface.OnClickListener()
public void onClick(DialogInterface dialog, int id)
dialog.dismiss();
);
AlertDialog dialog = builder.create();
dialog.show();
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_
android:layout_
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_
android:layout_
android:padding="5dip"
android:text="Select Receivers" />
<Button
android:id="@+id/select_receivers"
android:layout_
android:layout_
android:padding="5dip"
android:text="- None Selected -" />
<ListView
android:id="@+id/listView1"
android:layout_
android:layout_ >
</ListView>
</LinearLayout>
复制并粘贴上面的代码..当您签入对话框时，它会自动添加到列表视图中
【讨论】：
【参考方案2】：以下代码适合您：
String[] your_array = "a","b","c"
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_multiple_choice, your_array);
listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listView.setAdapter(adapter);
使用上面的代码，您可以在列表视图中选中或取消选中。
【讨论】：
@Ketan 我如何在我的代码中实现你的代码，因为 Java 中的新手所以问你。 adapter = new ArrayAdapter以上是关于Android 使用按钮和对话框复选框的多选项目，并在列表视图中显示所选项目而不是按钮的主要内容，如果未能解决你的问题，请参考以下文章