本文匯總了android 8種對(duì)話框（Dialog）使用方法，分享給大家供大家參考，具體內(nèi)容如下
1.寫(xiě)在前面
Android提供了豐富的Dialog函數(shù)，本文介紹最常用的8種對(duì)話框的使用方法，包括普通（包含提示消息和按鈕）、列表、單選、多選、等待、進(jìn)度條、編輯、自定義等多種形式，將在第2部分介紹。
有時(shí)，我們希望在對(duì)話框創(chuàng)建或關(guān)閉時(shí)完成一些特定的功能，這需要復(fù)寫(xiě)Dialog的create()、show()、dismiss()等方法，將在第3部分介紹。
2.代碼示例
2.1 普通Dialog（圖1與圖2）
2個(gè)按鈕
public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button buttonNormal = (Button) findViewById(R.id.button_normal); buttonNormal.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showNormalDialog(); } }); } private void showNormalDialog(){ /* @setIcon 設(shè)置對(duì)話框圖標(biāo) * @setTitle 設(shè)置對(duì)話框標(biāo)題 * @setMessage 設(shè)置對(duì)話框消息提示 * setXXX方法返回Dialog對(duì)象，因此可以鏈?zhǔn)皆O(shè)置屬性 */ final AlertDialog.Builder normalDialog = new AlertDialog.Builder(MainActivity.this); normalDialog.setIcon(R.drawable.icon_dialog); normalDialog.setTitle("我是一個(gè)普通Dialog") normalDialog.setMessage("你要點(diǎn)擊哪一個(gè)按鈕呢?"); normalDialog.setPositiveButton("確定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { //...To-do } }); normalDialog.setNegativeButton("關(guān)閉", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { //...To-do } }); // 顯示 normalDialog.show(); }}3個(gè)按鈕
/* @setNeutralButton 設(shè)置中間的按鈕 * 若只需一個(gè)按鈕，僅設(shè)置 setPositiveButton 即可 */private void showMultiBtnDialog(){ AlertDialog.Builder normalDialog = new AlertDialog.Builder(MainActivity.this); normalDialog.setIcon(R.drawable.icon_dialog); normalDialog.setTitle("我是一個(gè)普通Dialog").setMessage("你要點(diǎn)擊哪一個(gè)按鈕呢?"); normalDialog.setPositiveButton("按鈕1", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // ...To-do } }); normalDialog.setNeutralButton("按鈕2", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // ...To-do } }); normalDialog.setNegativeButton("按鈕3", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // ...To-do } }); // 創(chuàng)建實(shí)例并顯示 normalDialog.show();}2.2 列表Dialog（圖3）
private void showListDialog() { final String[] items = { "我是1","我是2","我是3","我是4" }; AlertDialog.Builder listDialog = new AlertDialog.Builder(MainActivity.this); listDialog.setTitle("我是一個(gè)列表Dialog"); listDialog.setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // which 下標(biāo)從0開(kāi)始 // ...To-do Toast.makeText(MainActivity.this, "你點(diǎn)擊了" + items[which], Toast.LENGTH_SHORT).show(); } }); listDialog.show();}2.3 單選Dialog（圖4）
int yourChoice;private void showSingleChoiceDialog(){ final String[] items = { "我是1","我是2","我是3","我是4" }; yourChoice = -1; AlertDialog.Builder singleChoiceDialog = new AlertDialog.Builder(MainActivity.this); singleChoiceDialog.setTitle("我是一個(gè)單選Dialog"); // 第二個(gè)參數(shù)是默認(rèn)選項(xiàng)，此處設(shè)置為0 singleChoiceDialog.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { yourChoice = which; } }); singleChoiceDialog.setPositiveButton("確定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { if (yourChoice != -1) { Toast.makeText(MainActivity.this, "你選擇了" + items[yourChoice], Toast.LENGTH_SHORT).show(); } } }); singleChoiceDialog.show();}2.4 多選Dialog（圖5）
ArrayList<Integer> yourChoices = new ArrayList<>();private void showMultiChoiceDialog() { final String[] items = { "我是1","我是2","我是3","我是4" }; // 設(shè)置默認(rèn)選中的選項(xiàng)，全為false默認(rèn)均未選中 final boolean initChoiceSets[]={false,false,false,false}; yourChoices.clear(); AlertDialog.Builder multiChoiceDialog = new AlertDialog.Builder(MainActivity.this); multiChoiceDialog.setTitle("我是一個(gè)多選Dialog"); multiChoiceDialog.setMultiChoiceItems(items, initChoiceSets, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { if (isChecked) { yourChoices.add(which); } else { yourChoices.remove(which); } } }); multiChoiceDialog.setPositiveButton("確定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { int size = yourChoices.size(); String str = ""; for (int i = 0; i < size; i++) { str += items[yourChoices.get(i)] + " "; } Toast.makeText(MainActivity.this, "你選中了" + str, Toast.LENGTH_SHORT).show(); } }); multiChoiceDialog.show();}2.5 等待Dialog（圖6）
private void showWaitingDialog() { /* 等待Dialog具有屏蔽其他控件的交互能力 * @setCancelable 為使屏幕不可點(diǎn)擊，設(shè)置為不可取消(false) * 下載等事件完成后，主動(dòng)調(diào)用函數(shù)關(guān)閉該Dialog */ ProgressDialog waitingDialog= new ProgressDialog(MainActivity.this); waitingDialog.setTitle("我是一個(gè)等待Dialog"); waitingDialog.setMessage("等待中..."); waitingDialog.setIndeterminate(true); waitingDialog.setCancelable(false); waitingDialog.show();}2.6 進(jìn)度條Dialog（圖7）
private void showProgressDialog() { /* @setProgress 設(shè)置初始進(jìn)度 * @setProgressStyle 設(shè)置樣式（水平進(jìn)度條） * @setMax 設(shè)置進(jìn)度最大值 */ final int MAX_PROGRESS = 100; final ProgressDialog progressDialog = new ProgressDialog(MainActivity.this); progressDialog.setProgress(0); progressDialog.setTitle("我是一個(gè)進(jìn)度條Dialog"); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setMax(MAX_PROGRESS); progressDialog.show(); /* 模擬進(jìn)度增加的過(guò)程 * 新開(kāi)一個(gè)線程，每個(gè)100ms，進(jìn)度增加1 */ new Thread(new Runnable() { @Override public void run() { int progress= 0; while (progress < MAX_PROGRESS){ try { Thread.sleep(100); progress++; progressDialog.setProgress(progress); } catch (InterruptedException e){ e.printStackTrace(); } } // 進(jìn)度達(dá)到最大值后，窗口消失 progressDialog.cancel(); } }).start();}2.7 編輯Dialog（圖8）
private void showInputDialog() { /*@setView 裝入一個(gè)EditView */ final EditText editText = new EditText(MainActivity.this); AlertDialog.Builder inputDialog = new AlertDialog.Builder(MainActivity.this); inputDialog.setTitle("我是一個(gè)輸入Dialog").setView(editText); inputDialog.setPositiveButton("確定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(MainActivity.this, editText.getText().toString(), Toast.LENGTH_SHORT).show(); } }).show();}2.8 自定義Dialog（圖9）
<!-- res/layout/dialog_customize.xml--><!-- 自定義View --><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:id="@+id/edit_text" android:layout_width="match_parent" android:layout_height="wrap_content" /></LinearLayout>private void showCustomizeDialog() { /* @setView 裝入自定義View ==> R.layout.dialog_customize * 由于dialog_customize.xml只放置了一個(gè)EditView，因此和圖8一樣 * dialog_customize.xml可自定義更復(fù)雜的View */ AlertDialog.Builder customizeDialog = new AlertDialog.Builder(MainActivity.this); final View dialogView = LayoutInflater.from(MainActivity.this) .inflate(R.layout.dialog_customize,null); customizeDialog.setTitle("我是一個(gè)自定義Dialog"); customizeDialog.setView(dialogView); customizeDialog.setPositiveButton("確定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // 獲取EditView中的輸入內(nèi)容 EditText edit_text = (EditText) dialogView.findViewById(R.id.edit_text); Toast.makeText(MainActivity.this, edit_text.getText().toString(), Toast.LENGTH_SHORT).show(); } }); customizeDialog.show();}3.復(fù)寫(xiě)回調(diào)函數(shù)
/* 復(fù)寫(xiě)B(tài)uilder的create和show函數(shù)，可以在Dialog顯示前實(shí)現(xiàn)必要設(shè)置 * 例如初始化列表、默認(rèn)選項(xiàng)等 * @create 第一次創(chuàng)建時(shí)調(diào)用 * @show 每次顯示時(shí)調(diào)用 */private void showListDialog() { final String[] items = { "我是1","我是2","我是3","我是4" }; AlertDialog.Builder listDialog = new AlertDialog.Builder(MainActivity.this){ @Override public AlertDialog create() { items[0] = "我是No.1"; return super.create(); } @Override public AlertDialog show() { items[1] = "我是No.2"; return super.show(); } }; listDialog.setTitle("我是一個(gè)列表Dialog"); listDialog.setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // ...To-do } }); /* @setOnDismissListener Dialog銷毀時(shí)調(diào)用 * @setOnCancelListener Dialog關(guān)閉時(shí)調(diào)用 */ listDialog.setOnDismissListener(new DialogInterface.OnDismissListener() { public void onDismiss(DialogInterface dialog) { Toast.makeText(getApplicationContext(), "Dialog被銷毀了", Toast.LENGTH_SHORT).show(); } }); listDialog.show();}以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助。
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