Android中AlertDialog各种对话框的用法实例详解

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" > <Button android:id="@+id/btnSure" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="10dp" android:text="确认对话框"/> <Button android:id="@+id/btnRadio" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="60dp" android:text="单选对话框"/> <Button android:id="@+id/btnCheck" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="110dp" android:text="多选对话框"/> <Button android:id="@+id/btnList" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="160dp" android:text="列表对话框"/> <Button android:id="@+id/btnMy" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="210dp" android:text="自定义对话框"/> </RelativeLayout> 

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <EditText android:id="@+id/edInput" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="2" > <requestFocus /> </EditText> <Button android:id="@+id/btnOk" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="确定" /> </LinearLayout> <ImageView android:id="@+id/ivPicture" android:layout_width="wrap_content" android:layout_height="280dp" android:src="@drawable/white" /> <TextView android:id="@+id/textView1" android:layout_gravity="center" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" /> </LinearLayout> 

package com.example.alertdialog; import android.os.Bundle; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.view.LayoutInflater; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity implements OnClickListener { private Button btnSure,btnRadio,btnCheck,btnList,btnMy; private String[] sexList={"男","女"};//单选列表 private String[] likeList={"篮球","足球","打游戏","听音乐","看电影"};//多选列表 private String[] itemList={"项目经理","策划","测试","美工","程序员"};//列表 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); getId();//获取控件id click();//按钮绑定点击事件 } /*获取控件id*/ private void getId() { btnSure = (Button) findViewById(R.id.btnSure); btnRadio=(Button) findViewById(R.id.btnRadio); btnCheck=(Button) findViewById(R.id.btnCheck); btnList=(Button) findViewById(R.id.btnList); btnMy=(Button) findViewById(R.id.btnMy); } /*按钮绑定点击事件*/ private void click() { btnSure.setOnClickListener(this); btnRadio.setOnClickListener(this); btnCheck.setOnClickListener(this); btnList.setOnClickListener(this); btnMy.setOnClickListener(this); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public void onClick(View view) { switch (view.getId()) { case R.id.btnSure: showDialog1();//确认对话框 break; case R.id.btnRadio: showDialog2();//单选对话框 break; case R.id.btnCheck: showDialog3();//多选对话框 break; case R.id.btnList: showDialog4(); break; case R.id.btnMy: showDialog5(); break; } } /*确认对话框*/ private void showDialog1() { AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("确认对话框");//设置标题 builder.setIcon(R.drawable.ic_launcher);//设置图标 builder.setMessage("确认对话框提示内容");//设置内容 /*添加对话框中确定按钮和点击事件*/ builder.setPositiveButton("确定",new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) { Toast.makeText(MainActivity.this,"点击了确定按钮",Toast.LENGTH_SHORT).show(); } }); /*添加对话框中取消按钮和点击事件*/ builder.setNegativeButton("取消",new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) { Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show(); } }); AlertDialog dialog=builder.create();//获取dialog dialog.show();//显示对话框 } /*单选对话框*/ private void showDialog2() { AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("性别");//设置标题 builder.setIcon(R.drawable.ic_launcher);//设置图标 /*参数一位单选列表文字，参数二为默认第几个选中（-1默认不选中），参数三是创建监听器*/ builder.setSingleChoiceItems(sexList,-1,new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { String sex=sexList[which]; Toast.makeText(MainActivity.this,"这个人性别为"+sex, Toast.LENGTH_SHORT).show(); } }); /*添加对话框中取消按钮点击事件*/ builder.setNegativeButton("取消",new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss();//关闭对话框 } }); AlertDialog dialog=builder.create();//获取dialog dialog.show();//显示对话框 } /*多选对话框*/ private void showDialog3() { AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("爱好");//设置标题 builder.setIcon(R.drawable.ic_launcher);//设置图标 /*参数同单选对话框一样，另外第二个参数默认不选中为null，而不是-1*/ builder.setMultiChoiceItems(likeList,null,new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { if(isChecked){ Toast.makeText(MainActivity.this,"我喜欢"+likeList[which],Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(MainActivity.this,"我不喜欢"+likeList[which],Toast.LENGTH_SHORT).show(); } } }); /*添加对话框中取消按钮点击事件*/ builder.setNegativeButton("取消",new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss();//关闭对话框 } }); AlertDialog dialog=builder.create();//获取dialog dialog.show();//显示对话框 } /*列表对话框*/ private void showDialog4() { AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("部门列表");//设置标题 builder.setIcon(R.drawable.ic_launcher);//设置图标 builder.setItems(itemList,new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(MainActivity.this,"我点击了"+itemList[which],Toast.LENGTH_SHORT).show(); } }); AlertDialog dialog=builder.create();//获取dialog dialog.show();//显示对话框 } /*自定义对话框*/ private void showDialog5() { LayoutInflater inflater=LayoutInflater.from(this); View view=inflater.inflate(R.layout.dialog,null);//获取自定义布局 AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("自定义对话框");//设置标题 builder.setIcon(R.drawable.ic_launcher);//设置图标 builder.setView(view);//设置自定义样式布局到对话框 AlertDialog dialog=builder.create();//获取dialog dialog.show();//显示对话框 } }