Android开发之ListView的全选和全不选

最新推荐文章于 2021-05-27 03:24:31 发布

原创最新推荐文章于 2021-05-27 03:24:31 发布 · 347 阅读

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#listView全选 #不选 #android全选 #android全不选

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本文详细介绍了一个审批人页面的设计与实现过程，包括布局结构、页面代码及关键交互逻辑。展示了如何通过RadioGroup切换不同审批人角色，并实现数据的全选操作。

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看图：

我这是两个全选页面，所以一般这种是两个fragment进行嵌套实现。来看下我主页布局

<?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">

    <include layout="@layout/common_title_view" />

    <RadioGroup
        android:id="@+id/rg_tab_approval_home"
        android:layout_width="match_parent"
        android:layout_height="@dimen/dp_44"
        android:background="@android:color/white"
        android:orientation="horizontal"
        android:paddingTop="10dp">

        <RadioButton
            android:id="@+id/rb_my_approval_first"
            style="@style/RadioGroupButtonStyle"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:button="@null"
            android:checked="true"
            android:drawableBottom="@drawable/rb_tab_bg"
            android:drawablePadding="15dp"
            android:gravity="center"
            android:text="我为第一审批人" />

        <RadioButton
            android:id="@+id/rb_my_approval_second"
            style="@style/RadioGroupButtonStyle"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:button="@null"
            android:drawableBottom="@drawable/rb_tab_bg"
            android:drawablePadding="15dp"
            android:gravity="center"
            android:text="我为第二审批人" />
    </RadioGroup>

    <FrameLayout
        android:id="@+id/fl_approval_people_replace"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

上面布局长这样：

再来看下住页面代码：

package com.yhsh.mobile.attendance.approval;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.Toolbar;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

import com.yhsh.mobile.attendance.R;
import com.yhsh.mobile.common.base.BaseActivity;

/**
 * @author 轻飞扬
 *         2018年10月23日18:44:53
 *         审批人页面
 */
public class ApprovalPeopleActivity extends BaseActivity {


    private RadioGroup rgTabApprovalHome;
    private Fragment fragment;
    private boolean allSelect = false;
    private TextView subToolbar;
    /**
     * 默认第一审批人
     */
    private int isSelectPosition = 1;

    @Override
    public int getLayoutResId() {
        return R.layout.activity_approval_people;
    }

    @Override
    public void initView(Bundle savedInstanceState) {
        Toolbar toolbar = findViewById(R.id.toolbar);
        subToolbar = findViewById(R.id.toolbar_subTitle);
        TextView titleTV = findViewById(R.id.toolbar_title);
        titleTV.setText("我的审批");
        subToolbar.setText("选择全部");
        setSupportToolbar(toolbar, v -> finish());
        subToolbar.setOnClickListener(v -> allSelect());
        rgTabApprovalHome = findViewById(R.id.rg_tab_approval_home);
        initListener();
        fragment = new FirstApprovalPeopleFragment();
        showFragmentPage(fragment);
    }

    private void allSelect() {
        if (isSelectPosition == 1) {
            if (FirstApprovalPeopleFragment.getData() == null) {
                Toast.makeText(this, "暂无可勾选数据", Toast.LENGTH_SHORT).show();
                return;
            }
            FirstApprovalPeopleFragment.allSelect(allSelect);
        } else if (isSelectPosition == 2) {
            if (SecondApprovalPeopleFragment.getData() == null) {
                Toast.makeText(this, "暂无可勾选数据", Toast.LENGTH_SHORT).show();
                return;
            }
            SecondApprovalPeopleFragment.allSelect(allSelect);
        }
        setAllSelect();
    }

    private void setAllSelect() {
        if (allSelect) {
            subToolbar.setText("选择全选");
        } else {
            subToolbar.setText("选择不选");
        }
        allSelect = !allSelect;
    }

    private void initListener() {
        rgTabApprovalHome.setOnCheckedChangeListener((group, checkedId) -> {
            if (checkedId == R.id.rb_my_approval_first) {
                isSelectPosition = 1;
                //第一审批人
                fragment = new FirstApprovalPeopleFragment();
            } else if (checkedId == R.id.rb_my_approval_second) {
                isSelectPosition = 2;
                //第二审批人
                fragment = new SecondApprovalPeopleFragment();
            }
            showFragmentPage(fragment);
        });
    }

    private void showFragmentPage(Fragment fragment) {
        getSupportFragmentManager().beginTransaction().replace(R.id.fl_approval_people_replace, fragment).commit();
    }
}

再来看下第一审批人的布局：

<?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:background="#F0F2F5"
    android:orientation="vertical">

    <ListView
        android:id="@+id/lv_my_apply_first"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:background="@color/white" />

    <LinearLayout
        android:id="@+id/ll_operate"
        android:layout_width="match_parent"
        android:layout_height="@dimen/dp_44"
        android:background="@color/white"
        android:visibility="gone"
        android:gravity="center">

        <TextView
            android:id="@+id/tv_approval_agree"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:textColor="#00CC00"
            android:text="同意" />

        <TextView
            android:id="@+id/tv_approval_refuse"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:textColor="#FF0000"
            android:text="拒绝" />
    </LinearLayout>


    <com.yhsh.mobile.uiwidget.widget.EmptyView
        android:id="@+id/empty_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>