Android - AlertDialog

直接進入主題 ：

使用AlertDialog的多種方式

要創建一個AlertDialog，就要用到AlertDialog.Builder中的Create()方法，

其中AlertDialog.Builder提供了這幾種常用的方法：

setTile()爲對話框設置一個標題

setMessage()爲對話框設置內容

setIcon()爲對話框設置顯示圖片

setView()爲對話框自定義樣式

setItems()爲對話框顯示的一個list,一般用於顯示幾個命令時

setPositiveButton()給對話框添加“確認”按鈕

setNegativeButton()給對話框添加“取消”按鈕

第一種： 確認對話框 

怎麼實現呢 ？ 

protected void Affirmdialog() {
		// TODO Auto-generated method stub
			AlertDialog.Builder builder = new AlertDialog.Builder(this);
			builder.setTitle("this is a title");
			builder.setIcon(R.drawable.ic_launcher);
			builder.setMessage("this is a message");
			//是否可撤銷
			builder.setCancelable(false);
			builder.setPositiveButton("OK",new DialogInterface.OnClickListener() {
				
				@Override
				public void onClick(DialogInterface dialogInterface, int i) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "Onclick is Ok", Toast.LENGTH_LONG).show();
				}
			});
			builder.setNegativeButton("NO", new DialogInterface.OnClickListener() {
				
				@Override
				public void onClick(DialogInterface dialogInterface, int i) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "Onclick is NO", Toast.LENGTH_LONG).show();
				}
			});
			AlertDialog alertDialog = builder.create();
			alertDialog.show();
	}

第二種： 單選按鈕

setSengleCoiceItems():設置單選按鈕

	private String[] Singledata = {"boy", "girl"};

	protected void Singledialog() {
		// TODO Auto-generated method stub
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setSingleChoiceItems(Singledata, 0, new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialogInterface, int i) {
				// TODO Auto-generated method stub
				String value = Singledata[i];
				Toast.makeText(MainActivity.this, value, Toast.LENGTH_SHORT).show();
			}
		});
		AlertDialog alertDialog = builder.create();
		alertDialog.show();
	}

第三種 ：多選按鈕

setMultiChoiceItems():設置多選對話框

	private String[] Multidata = {"Basketball","foolball","badminton"};

protected void Multipledialog() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle("this is a MultipleDialogButton");
		builder.setMultiChoiceItems(Multidata, null, new DialogInterface.OnMultiChoiceClickListener() {
			
			@Override
			public void onClick(DialogInterface dialogInterface, int i, boolean b) {
				if(b){
					String value = Multidata[i];
					Toast.makeText(MainActivity.this, "I Like" + value, Toast.LENGTH_SHORT).show();
				}else{
					String value = Multidata[i];
					Toast.makeText(MainActivity.this, "I No Like " + value, Toast.LENGTH_SHORT).show();
				}
			}
		});
		builder.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialogInterface, int arg1) {
				// TODO Auto-generated method stub
				//取消
				dialogInterface.dismiss();
			}
		});
		AlertDialog alertDialog = builder.create();
		alertDialog.show();
	}

第四種 : 自定義對話框

從而我們可以在自定義的過程加入廣告

<?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" >
    
    <TextView
        android:layout_gravity="center"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="this is a customdialog"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <EditText
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            />
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="submit"/>
    </LinearLayout>
    
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:src="@drawable/guangkao"/>
</LinearLayout>

	protected void Mustomdialog() {
		// TODO Auto-generated method stub
		View view = LayoutInflater.from(MainActivity.this).inflate(R.layout.customdialog, null);
		AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
		builder.setView(view);
		AlertDialog alertDialog = builder.create();
		alertDialog.show();
	}

好了今天的四種AlertDialog對話框實現了，希望大家多多支持，謝謝！