先寫佈局，來四個按鈕
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="20dp" android:id="@+id/btn1" android:text="點選顯示" /> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="20dp" android:id="@+id/btn2" android:text="單選顯示" /> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="20dp" android:id="@+id/btn3" android:text="多選顯示" /> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="20dp" android:id="@+id/btn4" android:text="列表" /> </LinearLayout>
然後主檔案
package com.example.deemo; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Toast; public class MainActivity extends Activity { String[] single_list = {"man","woman","女博士","程式設計師"}; String[] multi_list = {"小鳥","靜流","千早","露西亞","朱音","篝"}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); initEvent(); } private void initEvent(){//點選事件 findViewById(R.id.btn1).setOnClickListener(new OnClickListener() {//確定對話方塊 @Override public void onClick(View arg0) { showDialog1(); } }); findViewById(R.id.btn2).setOnClickListener(new OnClickListener() {//單選對話方塊 @Override public void onClick(View arg0) { showDialog2(); } }); findViewById(R.id.btn3).setOnClickListener(new OnClickListener() {//多選對話方塊 @Override public void onClick(View arg0) { showDialog3(); } }); findViewById(R.id.btn4).setOnClickListener(new OnClickListener() {//列表對話方塊 @Override public void onClick(View arg0) { showDialog4(); } }); } private void showDialog1(){//顯示確認對話方塊 AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("確認dialog"); builder.setIcon(R.drawable.ic_launcher);//圖示 builder.setMessage("提示內容"); builder.setPositiveButton("確定", new DialogInterface.OnClickListener() {//確定按鈕 @Override public void onClick(DialogInterface dialog, int arg1) { Toast.makeText(MainActivity.this, "點選確定", Toast.LENGTH_SHORT).show(); } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {//取消按鈕 @Override public void onClick(DialogInterface arg0, int arg1) { Toast.makeText(MainActivity.this, "點選取消", Toast.LENGTH_SHORT).show(); } }); AlertDialog dialog = builder.create();//獲取dialog dialog.show();//顯示dialog } private void showDialog2(){//單選對話方塊 AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("選擇Dialog"); builder.setIcon(R.drawable.ic_launcher);//圖示 builder.setSingleChoiceItems(single_list, 0, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) {//第二個為傳入第幾個選擇 String str = single_list[arg1]; Toast.makeText(MainActivity.this, "this is a"+str, Toast.LENGTH_SHORT).show(); } });//單選按鈕描述,預設選中 AlertDialog dialog = builder.create();//獲取dialog dialog.show();//顯示dialog } private void showDialog3(){//多選對話方塊 AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("選擇Dialog"); builder.setIcon(R.drawable.ic_launcher);//圖示 builder.setMultiChoiceItems(multi_list, null, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface arg0, int arg1, boolean arg2) { if(arg2){ Toast.makeText(MainActivity.this, "我的老婆們是"+multi_list[arg1], Toast.LENGTH_SHORT).show(); }else { Toast.makeText(MainActivity.this, "還不是我的老婆們是"+multi_list[arg1], Toast.LENGTH_SHORT).show(); } } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {//取消按鈕,其實是隱藏 @Override public void onClick(DialogInterface arg0, int arg1) { arg0.dismiss(); } }); AlertDialog dialog = builder.create();//獲取dialog dialog.show();//顯示dialog } private void showDialog4(){//單選對話方塊 AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("列表"); builder.setIcon(R.drawable.ic_launcher);//圖示 builder.setItems(multi_list, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface arg0, int arg1) { Toast.makeText(MainActivity.this, "我老婆"+multi_list[arg1], Toast.LENGTH_SHORT).show(); } }); //什麼取消啊確定啊什麼功能根據上面自己一加 AlertDialog dialog = builder.create();//獲取dialog dialog.show();//顯示dialog } }
還有一個自定義佈局
首先寫一個自定義佈局檔案，名字比如dialog_layout.xml,隨意寫的不要介意
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="內容" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="提交" android:layout_marginLeft="10dp" /> </LinearLayout> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/four" /> </LinearLayout>
然後java檔案的一部分
點選事件
findViewById(R.id.btn5).setOnClickListener(new OnClickListener() {//列表對話方塊 @Override public void onClick(View arg0) { showDialog5(); } });
然後對話方塊
private void showDialog5(){//自定義對話方塊 LayoutInflater inflater = LayoutInflater.from(this);//獲取佈局 View view = inflater.inflate(R.layout.dialog_layout, null); AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("自定義Dialog"); builder.setIcon(R.drawable.ic_launcher);//圖示 builder.setView(view);//傳入view AlertDialog dialog = builder.create();//獲取dialog dialog.show();//顯示dialog }