android 几种对话框的简单实现

item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">

<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入"/>
<Button
android:id="@+id/bt1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="确定1"/>

</LinearLayout>

MainActivity.java

import android.content.DialogInterface;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

/**
* 普通对话框
*
* @param view
*/
public void show1(View view) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("对话框");
builder.setMessage("内容");
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "确定", Toast.LENGTH_LONG).show();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "取消", Toast.LENGTH_LONG).show();
}
});
builder.show();
}

/**
* 单选对话框
*
* @param view
*/
public void show2(View view) {
final String single_item[] = {"男", "女", "大一", "大二"};
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("对话框");
builder.setSingleChoiceItems(single_item, 1, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "" + single_item[which], Toast.LENGTH_LONG).show();
}
});
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "退出", Toast.LENGTH_LONG).show();
dialog.dismiss();
}
});
builder.create().show();
}

/**
* 多选对话框
*
* @param view
*/
public void show3(View view) {
final String single_item[] = {"男", "女", "大一", "大二"};
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("对话框");
builder.setMultiChoiceItems(single_item, null
, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
if (isChecked) {
Toast.makeText(MainActivity.this, "" + single_item[which], Toast.LENGTH_LONG).show();
}
}
});
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "退出", Toast.LENGTH_LONG).show();
dialog.dismiss();
}
});
builder.create().show();
}

/**
* 自定义对话框
*
* @param view
*/
public void show4(View view) {
final String single_item[] = {"男", "女", "大一", "大二"};
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("对话框");
//把布局加载view
View view1 = LayoutInflater.from(MainActivity.this).inflate(R.layout.item, null);
builder.setView(view1);
Button button = (Button) view1.findViewById(R.id.bt1);
final AlertDialog dialog = builder.create();
dialog.show();
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "退出", Toast.LENGTH_LONG).show();
dialog.dismiss();
}
});
}
}

运行结果就不给了，自己运行下就行了