ConfirmCancelBottomSheetDialog【确认取消底部对话框】

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前言

继承BottomSheetDialog，实现简单的确认取消对话框样式。

效果图

代码分析

ConfirmCancelBottomSheetDialog继承BottomSheetDialog。

使用步骤

一、项目组织结构图

注意事项：

1、 导入类文件后需要change包名以及重新import R文件路径

2、 Values目录下的文件（strings.xml、dimens.xml、colors.xml等），如果项目中存在，则复制里面的内容，不要整个覆盖

二、导入步骤

在APP中的bundle.gradle文件中添加以下代码，引入design【版本号跟appcompat-v7的保持一致】

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.why.project.confirmcancelbottomsheetdialogdemo"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    //BottomSheetDialog
    compile "com.android.support:design:27.1.1"
}

将ConfirmCancelBottomSheetDialog包复制到项目中【注意，需要手动打开Java文件重新import R文件】

package com.why.project.confirmcancelbottomsheetdialogdemo.confirmcancel;

import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomSheetDialog;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.why.project.confirmcancelbottomsheetdialogdemo.R;

/**
 * Used 底部弹出来的确认取消对话框【简约版的样式，只有标题、取消、确定两个按钮】
 */

public class ConfirmCancelBottomSheetDialog extends BottomSheetDialog {
    private static final String TAG = ConfirmCancelBottomSheetDialog.class.getSimpleName();

    private Context mContext;

    /**设置对话框内容和样式的监听器（标题、按钮样式，包括控制隐藏）*/
    private DialogSetListener mDialogSetListener;
    /**三个按钮的点击事件监听器*/
    private DialogClickListener mDialogClickListener;

    private TextView mTitle;
    private TextView mLeftBtn;
    private TextView mRightBtn;

    public ConfirmCancelBottomSheetDialog(@NonNull Context context, DialogSetListener dialogSetListener) {
        super(context);
        mContext = context;
        mDialogSetListener = dialogSetListener;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog_bottomsheet_confirm_cancel);

        //可以变相实现底部外边距效果
        int screenHeight = getScreenHeight((Activity) mContext);
        int statusBarHeight = getStatusBarHeight(getContext());
        int dialogHeight = screenHeight;//
//        getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, dialogHeight == 0 ? ViewGroup.LayoutParams.MATCH_PARENT : dialogHeight);
        getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);//红米6pro适配
        //设置透明
        getWindow().findViewById(R.id.design_bottom_sheet).setBackgroundResource(android.R.color.transparent);

        initViews();
        initEvents();
    }

    private static int getScreenHeight(Activity activity) {
        DisplayMetrics displaymetrics = new DisplayMetrics();
        activity.getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
        return displaymetrics.heightPixels;
    }

    private static int getStatusBarHeight(Context context) {
        int statusBarHeight = 0;
        Resources res = context.getResources();
        int resourceId = res.getIdentifier("status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            statusBarHeight = res.getDimensionPixelSize(resourceId);
        }
        return statusBarHeight;
    }

    private void initViews() {

        mTitle = findViewById(R.id.confirm_title);
        mLeftBtn = findViewById(R.id.left_btn);
        mRightBtn = findViewById(R.id.right_btn);

        //==========================初始展现==========================
        if(mDialogSetListener != null){
            mDialogSetListener.setDialog(mTitle, mLeftBtn, mRightBtn);
        }

    }

    private void initEvents() {
        mLeftBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(mDialogClickListener != null){
                    mDialogClickListener.leftClickListener();
                }
                dismiss();
            }
        });

        mRightBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(mDialogClickListener != null){
                    mDialogClickListener.rightClickListener();
                }
                dismiss();
            }
        });
    }

    /**设置对话框内容和样式的监听器（标题、内容、按钮样式，包括控制隐藏）*/
    public static abstract interface DialogSetListener
    {
        /**设置标题、内容、按钮的文本以及按钮的显示隐藏
         * @param title - 标题控件【默认“提示”】
         * @param leftBtn - 左侧按钮控件【默认“确定”】
         * @param rightBtn - 右侧按钮控件【默认“取消”】*/
        public abstract void setDialog(TextView title, TextView leftBtn, TextView rightBtn);
    }

    public void setDialogSetListener(DialogSetListener dialogSetListener) {
        mDialogSetListener = dialogSetListener;
    }

    /**三个按钮的点击事件监听器*/
    public static abstract interface DialogClickListener
    {
        /**取消按钮*/
        public abstract void leftClickListener();
        /**确定按钮*/
        public abstract void rightClickListener();
    }

    public void setDialogClickListener(DialogClickListener dialogClickListener) {
        mDialogClickListener = dialogClickListener;
    }
}

ConfirmCancelBottomSheetDialog.java

将confirm_cancel_bottomsheet_btn_bg.xml文件复制到res/drawable目录中

将dialog_bottomsheet_confirm_cancel.xml文件复制到res/layout目录中

至此，ConfirmCancelBottomSheetDialog就可以使用了。

三、使用方法

package com.why.project.confirmcancelbottomsheetdialogdemo;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.why.project.confirmcancelbottomsheetdialogdemo.confirmcancel.ConfirmCancelBottomSheetDialog;

public class MainActivity extends AppCompatActivity {

    private Button btn_open;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initViews();
        initEvents();
    }

    private void initViews() {
        btn_open = findViewById(R.id.btn_open);
    }

    private void initEvents() {
        btn_open.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                ConfirmCancelBottomSheetDialog delDialog = new ConfirmCancelBottomSheetDialog(MainActivity.this, new ConfirmCancelBottomSheetDialog.DialogSetListener() {
                    @Override
                    public void setDialog(TextView title, TextView leftBtn, TextView rightBtn) {
                        title.setText("是否删除？");
                    }
                });

                delDialog.setDialogClickListener(new ConfirmCancelBottomSheetDialog.DialogClickListener() {
                    @Override
                    public void leftClickListener() {
                        Toast.makeText(MainActivity.this,"取消",Toast.LENGTH_SHORT).show();
                    }

                    @Override
                    public void rightClickListener() {
                        Toast.makeText(MainActivity.this,"确认",Toast.LENGTH_SHORT).show();
                    }
                });

                delDialog.show();
            }
        });
    }
}

混淆配置

无

参考资料

暂时空缺

项目demo下载地址

https://github.com/haiyuKing/ConfirmCancelBottomSheetDialogDemo