android dialog —— 多选列表对话框

和单选列表对话框相似，这里需要通过setMultiChoiceItems将array.xml中的数据添加进去。

当单击列表项时会产生Click事件，这里用到的监听器是DialogInterface.OnMultiChoiceClickListener，具体实现如下：

第一步：

添加res/values/array.xml的数据

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="hobby">
<item>篮球</item>
<item>足球</item>
<item>排球</item>
</string-array>
</resources>

第二步：一个输入框和一个按钮

res/layout/muti_choice_dialog_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<EditText android:id="@+id/editText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="这是一个多选列表对话框"
/>
<Button android:id="@+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="显示多选列表对话框"
/>
</LinearLayout>

第三步：

src/com/dialog/activity/MutiChoiceDialogActivity.java

package com.dialog.activity;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MutiChoiceDialogActivity extends Activity {

private final int MUTI_CHOICE_DIALOG = 1;

boolean[] selected = new boolean[]{false,false,false};

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.muti_choice_dialog_layout);

Button button = (Button) findViewById(R.id.button);
View.OnClickListener listener = new View.OnClickListener() {

@Override
public void onClick(View view) {
showDialog(MUTI_CHOICE_DIALOG);
}
};
button.setOnClickListener(listener);
}

@Override
protected Dialog onCreateDialog(int id) {
Dialog dialog = null;
switch(id) {
case MUTI_CHOICE_DIALOG:
Builder builder = new AlertDialog.Builder(this);
builder.setTitle("多选列表对话框");
builder.setIcon(R.drawable.basketball);
DialogInterface.OnMultiChoiceClickListener mutiListener =
new DialogInterface.OnMultiChoiceClickListener() {

@Override
public void onClick(DialogInterface dialogInterface,
int which, boolean isChecked) {
selected[which] = isChecked;
}
};
builder.setMultiChoiceItems(R.array.hobby, selected, mutiListener);
DialogInterface.OnClickListener btnListener =
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int which) {
String selectedStr = "";
for(int i=0; i<selected.length; i++) {
if(selected[i] == true) {
selectedStr = selectedStr + " " +
getResources().getStringArray(R.array.hobby)[i];
}
}

EditText editText = (EditText) findViewById(R.id.editText);
editText.setText(selectedStr);
}
};
builder.setPositiveButton("确定", btnListener);
dialog = builder.create();
break;
}
return dialog;
}
}

效果图：



源码下载地址：http://download.csdn.net/source/3222814