Android 自定义对话框Dialog

开发时候需要对整个APP风格统一，所以对话框这种都是需要统一样式的，这种就需要自定义对话框了，可以自定义设置左右按钮文字，标题、内容提示、标题下面还有图标
效果图：

代码使用：

CommonDialog dialog = new CommonDialog(getActivity());
        dialog.setMessage(message)
                .setTitle("提示")
                .setSingle(false)
                .setNegtive("取消")
                .setPositive("确定").setOnClickBottomListener(new CommonDialog.OnClickBottomListener() {
            @Override
            public void onPositiveClick() {
                dialog.dismiss();
                //确定操作
            }

            @Override
            public void onNegtiveClick() {
                dialog.dismiss();
                //取消操作
            }
        }).show();

具体实现代码

import android.app.Dialog;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.Display;
import android.view.Gravity;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import com.blankj.utilcode.util.BarUtils;
import com.blankj.utilcode.util.ScreenUtils;
import java.util.Objects;

/**
 * 统一提示框
 */
public class CommonDialog extends Dialog {
    /**
     * 显示的图片
     */
    private ImageView imageIv;

    /**
     * 显示的标题
     */
    private TextView titleTv;

    /**
     * 显示的消息
     */
    private TextView messageTv;

    /**
     * 确认和取消按钮
     */
    private TextView negtiveBn, positiveBn;


    public CommonDialog(Context context) {
        super(context, R.style.CustomDialog);
    }

    /**
     * 都是内容数据
     */
    private String message;
    private String title;
    private String positive, negtive;
    private int imageResId = -1;

    /**
     * 底部是否只有一个按钮
     */
    private boolean isSingle = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_tips);
        //按空白处能取消动画
        setCanceledOnTouchOutside(true);
        //初始化界面控件
        initView();
        //初始化界面数据
        refreshView();
        //初始化界面控件的事件
        initEvent();

        getWindow().setGravity(Gravity.BOTTOM);//设置显示在底部
        WindowManager windowManager=getWindow().getWindowManager();
        Display display= windowManager.getDefaultDisplay();
        WindowManager.LayoutParams layoutParams=getWindow().getAttributes();
        layoutParams.width=display.getWidth();//设置Dialog的宽度为屏幕宽度
        layoutParams.height = display.getHeight();
        getWindow().setAttributes(layoutParams);
    }

    /**
     * 初始化界面的确定和取消监听器
     */
    private void initEvent() {
        //设置确定按钮被点击后，向外界提供监听
        positiveBn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (onClickBottomListener != null) {
                    onClickBottomListener.onPositiveClick();
                }
            }
        });
        //设置取消按钮被点击后，向外界提供监听
        negtiveBn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (onClickBottomListener != null) {
                    onClickBottomListener.onNegtiveClick();
                }
            }
        });
    }

    /**
     * 初始化界面控件的显示数据
     */
    private void refreshView() {
        //如果用户自定了title和message
        if (!TextUtils.isEmpty(title)) {
            titleTv.setText(title);
            titleTv.setVisibility(View.VISIBLE);
        } else {
            titleTv.setVisibility(View.GONE);
        }
        if (!TextUtils.isEmpty(message)) {
            messageTv.setText(message);
        }
        //如果设置按钮的文字
        if (!TextUtils.isEmpty(positive)) {
            positiveBn.setText(positive);
        } else {
            positiveBn.setText("确定");
        }
        if (!TextUtils.isEmpty(negtive)) {
            negtiveBn.setText(negtive);
        } else {
            negtiveBn.setText("取消");
        }

        if (imageResId != -1) {
            imageIv.setImageResource(imageResId);
            imageIv.setVisibility(View.VISIBLE);
        } else {
            imageIv.setVisibility(View.GONE);
        }
        /**
         * 只显示一个按钮的时候隐藏取消按钮，回掉只执行确定的事件
         */
        if (isSingle) {
            negtiveBn.setVisibility(View.GONE);
        } else {
            negtiveBn.setVisibility(View.VISIBLE);
        }
    }

    @Override
    public void show() {
        super.show();
        refreshView();
        Objects.requireNonNull(this.getWindow()).getDecorView().setBackgroundColor(Color.parseColor("#00000000"));
//        Objects.requireNonNull(this.getWindow()).setLayout(ScreenUtils.getScreenWidth(), ScreenUtils.getScreenHeight() - BarUtils.getActionBarHeight());
//        getWindow().setGravity(Gravity.BOTTOM);//设置显示在底部
    }

    /**
     * 初始化界面控件
     */
    private void initView() {
        negtiveBn = findViewById(R.id.cancel_btn);
        positiveBn = findViewById(R.id.submit_btn);
        titleTv = findViewById(R.id.tip_tv);
        messageTv = findViewById(R.id.message_tv);
        imageIv = findViewById(R.id.image);
    }

    /**
     * 设置确定取消按钮的回调
     */
    public OnClickBottomListener onClickBottomListener;

    public CommonDialog setOnClickBottomListener(OnClickBottomListener onClickBottomListener) {
        this.onClickBottomListener = onClickBottomListener;
        return this;
    }

    public interface OnClickBottomListener {
        /**
         * 点击确定按钮事件
         */
        public void onPositiveClick();

        /**
         * 点击取消按钮事件
         */
        public void onNegtiveClick();
    }

    public String getMessage() {
        return message;
    }

    public CommonDialog setMessage(String message) {
        this.message = message;
        return this;
    }

    public String getTitle() {
        return title;
    }

    public CommonDialog setTitle(String title) {
        this.title = title;
        return this;
    }

    public String getPositive() {
        return positive;
    }

    public CommonDialog setPositive(String positive) {
        this.positive = positive;
        return this;
    }

    public String getNegtive() {
        return negtive;
    }

    public CommonDialog setNegtive(String negtive) {
        this.negtive = negtive;
        return this;
    }

    public int getImageResId() {
        return imageResId;
    }

    public boolean isSingle() {
        return isSingle;
    }

    public CommonDialog setSingle(boolean single) {
        isSingle = single;
        return this;
    }

    public CommonDialog setImageResId(int imageResId) {
        this.imageResId = imageResId;
        return this;
    }

}

布局文件：

<?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:id="@+id/update_con_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:visibility="visible"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <View
        android:id="@+id/back_view"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:background="@drawable/top_corners_12dp_white"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHeight_percent="0.33"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent" />

    <TextView
        android:id="@+id/tip_tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="18dp"
        android:text="提示"
        android:textColor="@color/colorMainTitleBody"
        android:textSize="18sp"
        android:textStyle="bold"
        app:layout_constraintLeft_toLeftOf="@id/back_view"
        app:layout_constraintRight_toRightOf="@id/back_view"
        app:layout_constraintTop_toTopOf="@id/back_view" />

    <ImageView
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:layout_marginBottom="10dp"
        android:maxWidth="150dp"
        android:maxHeight="150dp"
        android:visibility="gone"
        android:layout_marginTop="10dp"
        app:layout_constraintTop_toBottomOf="@id/tip_tv"
        app:layout_constraintLeft_toLeftOf="@id/back_view"
        app:layout_constraintRight_toRightOf="@id/back_view"
        />

    <TextView
        android:id="@+id/message_tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="30dp"
        android:text="发现新版本"
        android:textColor="@color/colorMainTitleBody"
        android:textSize="16sp"
        app:layout_constraintLeft_toLeftOf="@id/back_view"
        app:layout_constraintRight_toRightOf="@id/back_view"
        app:layout_constraintTop_toBottomOf="@id/image" />

    <TextView
        android:id="@+id/cancel_btn"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginBottom="32dp"
        android:background="@drawable/four_corners_5dp_line"
        android:gravity="center"
        android:text="@string/cancel"
        android:textColor="@color/colorMainStyle"
        android:textSize="16sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintDimensionRatio="14:5"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toLeftOf="@id/submit_btn"
        app:layout_constraintWidth_percent="0.375" />

    <TextView
        android:id="@+id/submit_btn"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginBottom="32dp"
        android:background="@drawable/four_corners_5dp"
        android:gravity="center"
        android:text="@string/update"
        android:textColor="@color/cardview_light_background"
        android:textSize="16sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintDimensionRatio="14:5"
        app:layout_constraintLeft_toRightOf="@id/cancel_btn"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintWidth_percent="0.375"
        tools:ignore="PrivateResource" />


</androidx.constraintlayout.widget.ConstraintLayout>

style定义：

<style name="CustomDialog" parent="@android:style/Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowBackground">@drawable/dialog_confirm</item>
        <item name="android:backgroundDimEnabled">true</item>
        <item name="android:background">#00000000</item>
    </style>

圆角背景图：

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

    <size
        android:width="40dp"
        android:height="20dp" />
    <solid android:color="#FFFFFF" />
    <corners android:radius="12dp" />

</shape>

本文地址：https://blog.csdn.net/StudyOfAndroid/article/details/107413020