public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main);
Dialog alertDialog = new AlertDialog.Builder(this). setTitle("對話框的標題"). setMessage("對話框的內容"). setIcon(R.drawable.ic_launcher). create(); alertDialog.show(); } } package com.tianjf; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.os.Bundle; public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Dialog alertDialog = new AlertDialog.Builder(this). setTitle("對話框的標題"). setMessage("對話框的內容"). setIcon(R.drawable.ic_launcher). create(); alertDialog.show(); } }運行結果如下：
public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main);
Dialog alertDialog = new AlertDialog.Builder(this). setTitle("確定刪除？"). setMessage("您確定刪除該條信息嗎？"). setIcon(R.drawable.ic_launcher). setPositiveButton("確定", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). setNeutralButton("查看詳情", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } } package com.tianjf; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Dialog alertDialog = new AlertDialog.Builder(this). setTitle("確定刪除？"). setMessage("您確定刪除該條信息嗎？"). setIcon(R.drawable.ic_launcher). setPositiveButton("確定", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). setNeutralButton("查看詳情", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } }在這個例子中，我們定義了三個按鈕，分別是"Yes"按鈕，"No"按鈕以及一個普通按鈕，每個按鈕都有onClick事件，TODO的地方可以放點了按鈕之后想要做的一些處理 看一下運行結果：
public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main);
final String[] arrayFruit = new String[] { "蘋果", "橘子", "草莓", "香蕉" };
Dialog alertDialog = new AlertDialog.Builder(this). setTitle("你喜歡吃哪種水果？"). setIcon(R.drawable.ic_launcher) .setItems(arrayFruit, new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(Dialog_AlertDialogDemoActivity.this, arrayFruit[which], Toast.LENGTH_SHORT).show(); } }). setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } } package com.tianjf; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.widget.Toast; public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final String[] arrayFruit = new String[] { "蘋果", "橘子", "草莓", "香蕉" }; Dialog alertDialog = new AlertDialog.Builder(this). setTitle("你喜歡吃哪種水果？"). setIcon(R.drawable.ic_launcher) .setItems(arrayFruit, new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(Dialog_AlertDialogDemoActivity.this, arrayFruit[which], Toast.LENGTH_SHORT).show(); } }). setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } }運行結果如下：
四、類似RadioButton的AlertDialog 用setSingleChoiceItems(CharSequence[] items, int checkedItem, final OnClickListener listener)方法來實現類似RadioButton的AlertDialog 第一個參數是要顯示的數據的數組，第二個參數是初始值（初始被選中的item），第三個參數是點擊某個item的觸發事件 在這個例子里面我們設了一個selectedFruitIndex用來記住選中的item的index
public class Dialog_AlertDialogDemoActivity extends Activity {
private int selectedFruitIndex = 0;
/** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main);
final String[] arrayFruit = new String[] { "蘋果", "橘子", "草莓", "香蕉" };
Dialog alertDialog = new AlertDialog.Builder(this). setTitle("你喜歡吃哪種水果？"). setIcon(R.drawable.ic_launcher) .setSingleChoiceItems(arrayFruit, 0, new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { selectedFruitIndex = which; } }). setPositiveButton("確認", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(Dialog_AlertDialogDemoActivity.this, arrayFruit[selectedFruitIndex], Toast.LENGTH_SHORT).show(); } }). setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } } package com.tianjf; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.widget.Toast; public class Dialog_AlertDialogDemoActivity extends Activity {
private int selectedFruitIndex = 0;
/** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final String[] arrayFruit = new String[] { "蘋果", "橘子", "草莓", "香蕉" }; Dialog alertDialog = new AlertDialog.Builder(this). setTitle("你喜歡吃哪種水果？"). setIcon(R.drawable.ic_launcher) .setSingleChoiceItems(arrayFruit, 0, new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { selectedFruitIndex = which; } }). setPositiveButton("確認", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(Dialog_AlertDialogDemoActivity.this, arrayFruit[selectedFruitIndex], Toast.LENGTH_SHORT).show(); } }). setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } } 運行結果如下：
五、類似CheckBox的AlertDialog 用setMultiChoiceItems(CharSequence[] items, boolean[] checkedItems, final OnMultiChoiceClickListener listener)方法來實現類似CheckBox的AlertDialog 第一個參數是要顯示的數據的數組，第二個參數是選中狀態的數組，第三個參數是點擊某個item的觸發事件
public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main);
final String[] arrayFruit = new String[] { "蘋果", "橘子", "草莓", "香蕉" }; final boolean[] arrayFruitSelected = new boolean[] {true, true, false, false};
Dialog alertDialog = new AlertDialog.Builder(this). setTitle("你喜歡吃哪種水果？"). setIcon(R.drawable.ic_launcher) .setMultiChoiceItems(arrayFruit, arrayFruitSelected, new DialogInterface.OnMultiChoiceClickListener() {
@Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { arrayFruitSelected[which] = isChecked; } }). setPositiveButton("確認", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { StringBuilder stringBuilder = new StringBuilder(); for (int i = 0; i < arrayFruitSelected.length; i++) { if (arrayFruitSelected[i] == true) { stringBuilder.append(arrayFruit[i] + "、"); } } Toast.makeText(Dialog_AlertDialogDemoActivity.this, stringBuilder.toString(), Toast.LENGTH_SHORT).show(); } }). setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } } package com.tianjf; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.widget.Toast; public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final String[] arrayFruit = new String[] { "蘋果", "橘子", "草莓", "香蕉" }; final boolean[] arrayFruitSelected = new boolean[] {true, true, false, false}; Dialog alertDialog = new AlertDialog.Builder(this). setTitle("你喜歡吃哪種水果？"). setIcon(R.drawable.ic_launcher) .setMultiChoiceItems(arrayFruit, arrayFruitSelected, new DialogInterface.OnMultiChoiceClickListener() {
@Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { arrayFruitSelected[which] = isChecked; } }). setPositiveButton("確認", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { StringBuilder stringBuilder = new StringBuilder(); for (int i = 0; i < arrayFruitSelected.length; i++) { if (arrayFruitSelected[i] == true) { stringBuilder.append(arrayFruit[i] + "、"); } } Toast.makeText(Dialog_AlertDialogDemoActivity.this, stringBuilder.toString(), Toast.LENGTH_SHORT).show(); } }). setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } }運行結果如下：
public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main);
Dialog alertDialog = new AlertDialog.Builder(this). setTitle("用戶登錄"). setIcon(R.drawable.ic_launcher). setView(myLoginView). setPositiveButton("登錄", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub } }). create(); alertDialog.show(); } } package com.tianjf; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; public class Dialog_AlertDialogDemoActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // 取得自定義View LayoutInflater layoutInflater = LayoutInflater.from(this); View myLoginView = layoutInflater.inflate(R.layout.login, null);
