一、使用系統樣式

AlertDialog.Builder builder = new AlertDialog.Builder(PaperActivity.this);

builder.setMessage(message);
builder.setTitle("提示");

builder.setPositiveButton("確認", new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int
 
 which) {
                        dialog.dismiss();
                    }
                });

builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                });

builder.create().show();
 

二、使用自定義樣式

自定義style

<style name="AlertDialogCustom" parent="android:Theme.Material.Dialog.Alert">
        <item name="android:textColor">#ffffff</item>
        <item name="android:typeface">monospace</item>
        <item name="android:textSize">10sp</item>
 
</style>

使用自定義

AlertDialog.Builder builder = new AlertDialog.Builder(new ContextThemeWrapper(PaperActivity.this, R.style.AlertDialogCustom));

三、自定義Dialog

參考連結

1.Dialog佈局檔案

<?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:minHeight="40px"
    android:minWidth="300px"
    android:orientation="vertical">

    <TextView
        android:id="@+id/paper_dialog_titleText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textColor="@color/colorAccent"
        android:text="提示"
        android:textSize="@dimen/alertDialogTitle"/>

    <TextView
        android:id="@+id/paper_dialog_contentText"
        android:layout_width="match_parent"
        android:minHeight="100px"
        android:layout_height="wrap_content"
        android:text="nihao"
        android:textSize="@dimen/alertDialogText"/>

    <Button
        android:id="@+id/paper_dialog_checkButton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="確定"
        android:gravity="center"
        android:background="@drawable/paper_dialog_checkbutton_selector"
        android:textSize="@dimen/alertDialogCheck"
        android:textColor="@color/colorAccent"/>


</LinearLayout>

2. 自定義Dialog的java

public class PaperDialog extends Dialog {

    private Context mContext;
    private TextView mTitle;
    private TextView mContent;
    private Button mCheckButton;

    public PaperDialog(Context context) {
        super(context);
        mContext = context;
    }

    public PaperDialog(Context context, int themeResId) {
        super(context, themeResId);
        mContext = context;
    }

    protected PaperDialog(Context context, boolean cancelable, OnCancelListener cancelListener) {
        super(context, cancelable, cancelListener);
    }


    public void createDialog(){
        //獲得inflater
            LayoutInflater inflater = LayoutInflater.from(mContext);
            //從xml轉換為View
            View layoutView = inflater.inflate(R.layout.question_paper_dialog, null);
            //PaperDialog將layoutView作為其View
            addContentView(layoutView,
                    new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));//View的大小
            //標題
            mTitle = (TextView) layoutView.findViewById(R.id.paper_dialog_titleText);
            //內容
            mContent = (TextView) layoutView.findViewById(R.id.paper_dialog_contentText);
            //確認按鈕
            mCheckButton = (Button) layoutView.findViewById(R.id.paper_dialog_checkButton);
    }


    public void setTitle(String title){
        this.mTitle.setText(title);
    }

    public void setTitleSize(float size){
        this.mTitle.setTextSize(size);
    }
    public void setMessage(CharSequence message) {
        mContent.setText(message);
    }

    public void setMessageSize(float size){
        this.mContent.setTextSize(size);
    }

    public void setCheck(CharSequence checkContent) {
        mCheckButton.setText(checkContent);
    }

    public void setCheckSize(float size){
        this.mCheckButton.setTextSize(size);
    }

    public void setCheckOnClickListener(String check, View.OnClickListener onClickListener){
        this.mCheckButton.setText(check);
        mCheckButton.setOnClickListener(onClickListener);
    }

}

3.對自定義Dialog進行使用

PaperDialog paperDialog = new PaperDialog(PaperActivity.this,  R.style.AlertDialogCustom);
paperDialog.createDialog();
//顯示“提示”
paperDialog.setTitle("提示");

String msg = "沒有完成，無法提交試卷！";
//設定資訊
paperDialog.setMessage(msg);
//設定確認監聽器
paperDialog.setCheckOnClickListener("確認", new View.OnClickListener() {
    @Override
        public void onClick(View v) {
            paperDialog.dismiss();
        }
});
//顯示Dialog
paperDialog.show();

4.style和dimens.xml

<style name="AlertDialogCustom" parent="android:Theme.Material.Light.Dialog.Alert">
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">true</item>
</style>

<!-- question begin -->
    <dimen name="alertDialogTitle">30dp</dimen>
    <dimen name="alertDialogCheck">30dp</dimen>
    <dimen name="alertDialogText">25dp</dimen>
<!-- question end -->