如何创建一个自定义对话框在安卓?

我想创建一个自定义对话框如下

我尝试了以下几点。

我创建了AlertDialog的子类。生成器，并使用自定义标题和自定义内容视图，并使用，但结果不是预期的。另一个尝试是子类DialogFragment和自定义对话框内的onCreateDialog，但结果不是预期的。然后我尝试使用一个普通的Dialog类。结果并不如预期的那样。

在这三种情况下，问题是当我忽略标题视图时，对话框的大小不是预期的，当我使用标题视图时，结果是在内容视图周围有一个粗边框(这看起来真的很糟糕)。现在我脑子里有两个问题……

我怎样才能做到呢?因为我已经尝试了很多事情，直接的回答会更受欢迎。在android应用程序中显示错误或警告对话框的最佳方式是什么?

编辑 Android开发者文档建议我们应该使用对话片段或对话框向用户显示错误/警报消息。然而，他们一度说……

提示:如果你想要一个自定义对话框，你可以将一个Activity显示为一个对话框，而不是使用对话框api。简单地创建一个活动，并将其主题设置为manifest元素中的theme . holo . dialog。

这是什么意思?仅仅是为了显示错误消息而使用Activity不是太过分了吗??

当前回答

简单先创建一个类

 public class ViewDialog {

        public void showDialog(Activity activity, String msg){
            final Dialog dialog = new Dialog(activity);
            dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
            dialog.setCancelable(false);
            dialog.setContentView(R.layout.custom_dialogbox_otp);
            dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));

            TextView text = (TextView) dialog.findViewById(R.id.txt_file_path);
            text.setText(msg);

            Button dialogBtn_cancel = (Button) dialog.findViewById(R.id.btn_cancel);
            dialogBtn_cancel.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
//                    Toast.makeText(getApplicationContext(),"Cancel" ,Toast.LENGTH_SHORT).show();
                    dialog.dismiss();
                }
            });

            Button dialogBtn_okay = (Button) dialog.findViewById(R.id.btn_okay);
            dialogBtn_okay.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
//                    Toast.makeText(getApplicationContext(),"Okay" ,Toast.LENGTH_SHORT).show();
                    dialog.cancel();
                }
            });

            dialog.show();
        }
    }

然后创建custom_dialogbox_otp

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="330dp"
    android:layout_height="160dp"
    android:background="#00555555"
    android:orientation="vertical"
    android:padding="5dp"
    android:weightSum="100">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/round_layout_otp"
        android:orientation="vertical"
        android:padding="7dp"
        android:weightSum="100">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="60"
            android:orientation="horizontal"
            android:weightSum="100">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="80"
                android:gravity="center">

                <ImageView
                    android:id="@+id/a"
                    android:layout_width="50dp"
                    android:layout_height="50dp"
                    android:background="#DA5F6A"
                    android:gravity="center"
                    android:scaleType="fitCenter"
                    android:src="@mipmap/infoonetwo" />

            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="20">

                <TextView
                    android:id="@+id/txt_file_path"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:singleLine="true"
                    android:text="TEXTO"
                    android:textColor="#FFFFFF"
                    android:textSize="17sp"
                    android:textStyle="bold" />
            </LinearLayout>
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="40"
            android:background="@drawable/round_layout_white_otp"
            android:orientation="vertical"
            android:weightSum="100">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_gravity="center"
                android:layout_weight="60">

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:gravity="center"
                    android:text="Do you wanna Exit..?"
                    android:textColor="#ff000000"
                    android:textSize="15dp"
                    android:textStyle="bold" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="40"
                android:orientation="horizontal"
                android:weightSum="100">


                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_marginRight="30dp"
                    android:layout_weight="50"
                    android:gravity="center|right">

                    <Button
                        android:id="@+id/btn_cancel"
                        android:layout_width="80dp"
                        android:layout_height="25dp"
                        android:background="@drawable/round_button"
                        android:gravity="center"
                        android:text="CANCEL"
                        android:textSize="13dp"
                        android:textStyle="bold"
                        android:textColor="#ffffffff" />

                </LinearLayout>

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_marginLeft="30dp"
                    android:layout_weight="50"
                    android:gravity="center|left">


                    <Button
                        android:id="@+id/btn_okay"
                        android:layout_width="80dp"
                        android:layout_height="25dp"
                        android:background="@drawable/round_button"
                        android:text="OKAY"
                        android:textSize="13dp"
                        android:textStyle="bold"
                        android:textColor="#ffffffff" />

                </LinearLayout>
            </LinearLayout>
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

然后在XML文件下面的可绘制的创建中。对于round_layout_white_otp.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <!-- <corners android:radius="10dp" /> -->
    <corners
        android:bottomLeftRadius="18dp"
        android:bottomRightRadius="16dp"
        android:topLeftRadius="38dp"
        android:topRightRadius="36dp" />
    <solid android:color="#C0C0C0" />
    </shape>

对于round_layout_otp.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <!-- <corners android:radius="10dp" /> -->
    <corners
        android:bottomLeftRadius="18dp"
        android:bottomRightRadius="16dp"
        android:topLeftRadius="38dp"
        android:topRightRadius="38dp" />
    <solid android:color="#DA5F6A" />
    </shape>

round_button

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <!-- <corners android:radius="10dp" /> -->
    <corners
        android:bottomLeftRadius="7dp"
        android:bottomRightRadius="7dp"
        android:topLeftRadius="7dp"
        android:topRightRadius="7dp" />
    <solid android:color="#06A19E" />
    </shape>

然后最后使用下面的代码来可视化你的对话框:)

ViewDialog alert = new ViewDialog();
        alert.showDialog(ReceivingOTPRegActivity.this, "OTP has been sent to your Mail ");

你的输出:)

答案更新:用于kotlin

  class ViewDialog {
        fun showResetPasswordDialog(activity: Activity?) {
            val dialog = Dialog(activity!!)
            dialog.requestWindowFeature(Window.FEATURE_NO_TITLE)
            dialog.setCancelable(false)
            dialog.setContentView(R.layout.resetpass_popup)
            dialog.window!!.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
            val dialogBtn_remove = dialog.findViewById<TextView>(R.id.txtClose)
            dialogBtn_remove.setOnClickListener {
                dialog.dismiss()
                activity!!.finish()
            }
            dialog.show()
        }
    }

你的xml设计，

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:ignore="MissingDefaultResource">

    <androidx.cardview.widget.CardView
        android:layout_width="340dp"
        android:layout_height="290dp"
        android:layout_marginLeft="12dp"
        android:layout_marginRight="12dp"
        app:cardCornerRadius="11dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <ImageView
                android:layout_width="61dp"
                android:layout_height="61dp"
                android:layout_gravity="center"
                android:layout_marginTop="12dp"
                android:src="@drawable/tickmark"
                tools:ignore="ContentDescription"></ImageView>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="22dp"
                android:layout_marginTop="18dp"
                android:layout_marginRight="12dp"
                android:fontFamily="@font/opensans_semibold"
                android:text="@string/apasswordreset"
                android:textColor="@color/gender_txt"
                android:textSize="15dp"
                tools:ignore="HardcodedText,RtlHardcoded,SpUsage"></TextView>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="22dp"
                android:layout_marginRight="12dp"
                android:fontFamily="@font/opensans_semibold"
                android:text="@string/toyourmail"
                android:textColor="@color/gender_txt"
                android:textSize="15dp"
                tools:ignore="HardcodedText,RtlHardcoded,SpUsage">


            </TextView>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="22dp"
                android:layout_marginTop="18dp"
                android:layout_marginRight="12dp"
                android:fontFamily="@font/opensans_regular"
                android:text="@string/followthe"
                android:textColor="@color/gender_txt"
                android:textSize="14dp"
                tools:ignore="HardcodedText,RtlHardcoded,SpUsage"></TextView>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="22dp"
                android:layout_marginRight="12dp"
                android:fontFamily="@font/opensans_regular"
                android:text="@string/inyouremail"
                android:textColor="@color/gender_txt"
                android:textSize="14dp"
                tools:ignore="HardcodedText,RtlHardcoded,SpUsage"></TextView>


            <TextView
                android:id="@+id/txtClose"
                android:layout_width="150dp"
                android:layout_height="40dp"
                android:layout_gravity="center"
                android:layout_marginTop="38dp"
                android:background="@drawable/nextbtn"
                android:fontFamily="@font/opensans_semibold"
                android:gravity="center"
                android:text="Close"
                android:textColor="@color/white_o"
                android:textSize="16dp"
                tools:ignore="HardcodedText,RtlHardcoded,SpUsage"></TextView>

        </LinearLayout>

    </androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>

现在，你可以打电话了

val alert = ViewDialog()
alert.showResetPasswordDialog(activity)

你的结果，

2017-01-21 10:27:04

其他回答

它是Alert Dialog的类，所以你可以从任何活动调用该类来重用代码。

public class MessageOkFragmentDialog extends DialogFragment {
Typeface Lato;
String message = " ";
String title = " ";
int messageID = 0;

public MessageOkFragmentDialog(String message, String title) {
    this.message = message;
    this.title = title;
}


@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

    LayoutInflater inflater = getActivity().getLayoutInflater();

    View convertview = inflater.inflate(R.layout.dialog_message_ok_box, null);


    Constants.overrideFonts(getActivity(), convertview);
    Lato = Typeface
            .createFromAsset(getActivity().getAssets(), "font/Lato-Regular.ttf");


    TextView textmessage = (TextView) convertview
            .findViewById(R.id.textView_dialog);

    TextView textview_dialog_title = (TextView) convertview.findViewById(R.id.textview_dialog_title);

    textmessage.setTypeface(Lato);
    textview_dialog_title.setTypeface(Lato);



    textmessage.setText(message);
    textview_dialog_title.setText(title);



    Button button_ok = (Button) convertview
            .findViewById(R.id.button_dialog);
    button_ok.setTypeface(Lato);

    builder.setView(convertview);
    button_ok.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View arg0) {
            dismiss();

        }
    });


    return builder.create();

}
}

相同的Xml文件是:

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    android:gravity="center_vertical|center"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/blue_color"
            android:gravity="center_horizontal"
            android:orientation="horizontal">

            <TextView
                android:id="@+id/textview_dialog_title"
                android:layout_width="wrap_content"
                android:layout_height="50dp"
                android:gravity="center"
                android:textColor="@color/white_color"
                android:textSize="@dimen/txtSize_Medium" />


        </LinearLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="@color/txt_white_color" />

        <TextView
            android:id="@+id/textView_dialog"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_margin="@dimen/margin_20"
            android:textColor="@color/txt_gray_color"
            android:textSize="@dimen/txtSize_small" />

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="@color/txt_white_color"
            android:visibility="gone"/>

        <Button
            android:id="@+id/button_dialog"
            android:layout_width="wrap_content"
            android:layout_height="@dimen/margin_40"
            android:layout_gravity="center"
            android:background="@drawable/circular_blue_button"

            android:text="@string/ok"
            android:layout_marginTop="5dp"
            android:layout_marginBottom="@dimen/margin_10"
            android:textColor="@color/txt_white_color"
            android:textSize="@dimen/txtSize_small" />
    </LinearLayout>

</LinearLayout>

2017-09-26 07:14:02

public static void showCustomAlertDialog(Context context, String name,
            String id, String desc, String fromDate, String toDate,
            String resions) {
        final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
                context);
        LayoutInflater inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view = inflater.inflate(R.layout.dialog, null);
        alertDialogBuilder.setView(view);
        alertDialogBuilder.setCancelable(false);
        final AlertDialog dialog = alertDialogBuilder.create();
        dialog.show();
        txt_empId = (TextView) view.findViewById(R.id.txt_dialog_empcode);
        txt_empName = (TextView) view.findViewById(R.id.txt_dialog_empname);
        txt_desc = (TextView) view.findViewById(R.id.txt_dialog_desc);
        txt_startDate = (TextView) view.findViewById(R.id.txt_dialog_startDate);
        txt_resions = (TextView) view.findViewById(R.id.txt_dialog_endDate);
        txt_empId.setTypeface(Utils.setLightTypeface(context));
        txt_empName.setTypeface(Utils.setLightTypeface(context));
        txt_desc.setTypeface(Utils.setLightTypeface(context));
        txt_startDate.setTypeface(Utils.setLightTypeface(context));
        txt_resions.setTypeface(Utils.setLightTypeface(context));

        txt_empId.setText(id);
        txt_empName.setText(name);

        txt_desc.setText(desc);
        txt_startDate.setText(fromDate + "\t to \t" + toDate);
        txt_resions.setText(resions);



        btn_accept = (Button) view.findViewById(R.id.btn_dialog_accept);
        btn_reject = (Button) view.findViewById(R.id.btn_dialog_reject);
        btn_cancel = (Button) view.findViewById(R.id.btn_dialog_cancel);
        btn_accept.setTypeface(Utils.setBoldTypeface(context));
        btn_reject.setTypeface(Utils.setBoldTypeface(context));
        btn_cancel.setTypeface(Utils.setBoldTypeface(context));

        btn_cancel.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                dialog.dismiss();

            }
        });

    }

2015-01-12 12:18:00

创建自定义警报布局custom_aler_update.xml

然后将此代码复制到Activity:

AlertDialog basic_reg;
AlertDialog.Builder builder ;
builder = new AlertDialog.Builder(ct, R.style.AppCompatAlertDialogStyle);
LayoutInflater inflater = ((Activity) ct).getLayoutInflater();
View v = inflater.inflate(R.layout.custom_aler_update, null);
builder.setView(v);
builder.setCancelable(false);
builder.create();
basic_reg = builder.show();

复制此代码到样式:

<style name="AppCompatAlertDialogStyle" parent="Theme.AppCompat.Light.Dialog.Alert">
    <item name="colorAccent">@color/colorAccent</item>
    <item name="android:textColorPrimary">@color/primaryTextColor</item>
    <item name="android:background">@color/white</item>
</style>

2017-01-08 18:25:49

用这段代码正确显示自定义对话框的简单方法

dialog_choose_photo.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/transparent"
android:orientation="vertical">

<LinearLayout
    android:id="@+id/l_buttons"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginLeft="@dimen/_5sdp"
    android:layout_marginRight="@dimen/_5sdp"
    android:layout_marginBottom="@dimen/_5sdp"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/bg_dialog_smallround_white"
        android:orientation="vertical">

        <TextView
            android:id="@+id/txt_camera"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center"
            android:paddingTop="@dimen/_10sdp"
            android:paddingBottom="@dimen/_10sdp"
            android:text="Take a Photo"
            android:textColor="#3080C7"
            android:textSize="18sp" />

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="#F1F0F0" />

        <TextView
            android:id="@+id/txt_gallery"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center"
            android:paddingTop="@dimen/_10sdp"
            android:paddingBottom="@dimen/_10sdp"
            android:text="Choose from Gallery"
            android:textColor="#3080C7"
            android:textSize="18sp" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/_5sdp"
        android:background="@drawable/bg_dialog_smallround_white"
        android:orientation="vertical">

        <TextView
            android:id="@+id/txt_cancel_dialog"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center"
            android:paddingTop="@dimen/_10sdp"
            android:paddingBottom="@dimen/_10sdp"
            android:text="Cancel"
            android:textColor="@color/colorPrimary"
            android:textSize="18sp" />
    </LinearLayout>


</LinearLayout>


</RelativeLayout>

只要调用这个函数

 public void openPhotoDialog() {
    final Dialog dialog = new Dialog(this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.dialog_choose_photo);
    dialog.setCancelable(true);

    // Setting dialogview

    final Window window = dialog.getWindow();
    window.setLayout(AbsListView.LayoutParams.MATCH_PARENT, AbsListView.LayoutParams.WRAP_CONTENT);
    dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
    WindowManager.LayoutParams wlp = window.getAttributes();

    wlp.gravity = Gravity.BOTTOM;
    window.addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
    window.setDimAmount(0.5f);
    window.setAttributes(wlp);


    TextView txt_camera = dialog.findViewById(R.id.txt_camera);
    TextView txt_gallery = dialog.findViewById(R.id.txt_gallery);
    TextView txt_cancel_dialog = dialog.findViewById(R.id.txt_cancel_dialog);

    txt_camera.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
            dialog.dismiss();
        }
    });
    txt_gallery.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
            dialog.dismiss();
        }
    });
    txt_cancel_dialog.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
            dialog.dismiss();
        }
    });

    dialog.show();

}

Bg_dialog_smallround_white.xml绘制资源

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/white" />

<corners
    android:radius="@dimen/_5sdp" />
</shape>

2020-08-19 06:29:14