android 多级下拉菜单实现教程 greendao使用

简介: android 多级下拉菜单实现教程 greendao使用

android 多级下拉菜单实现教程



n级下拉菜单需要n个 NiceSpinner,我实现的是3个;


就是在一级的iten点击事件(addOnItemClickListener),进行数据的装载;但是存在问题,不能在子item进行展示;


ee629f2b0b594548a24c8316c8204a31_tplv-k3u1fbpfcp-zoom-in-crop-mark_4536_0_0_0.png


编辑


NiceSpinner 文字展示不全



NiceSpinner padding太多,文字展示不全


mSpinner.setPadding(0,0,0,0);
 mSpinner.setGravity(Gravity.CENTER);
复制代码

居中这个问题可以直接设置在父layout


<LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:orientation="horizontal">
                    <org.angmarch.views.NiceSpinner
                        android:id="@+id/nsp_way"
                        android:layout_margin="-9dp"
                        android:layout_width="0dp"
                        android:layout_weight="1"
                        android:layout_height="match_parent"
                        android:text="政府下发隐患"
                        android:textColor="@color/color_content_name" />
                    <org.angmarch.views.NiceSpinner
                        android:id="@+id/nsp_way_three"
                        android:layout_width="0dp"
                        android:layout_weight="1"                        android:layout_height="match_parent"
                        android:gravity="center|left"
                        android:text="三方机构"
                        android:textColor="@color/color_content_name" />
                    <org.angmarch.views.NiceSpinner
                        android:id="@+id/nsp_way_three_expert"
                        android:layout_width="0dp"
                        android:layout_weight="1"                        android:layout_height="match_parent"
                        android:gravity="center|left"
                        android:text="三方机构"
                        android:textColor="@color/color_content_name" />
                </LinearLayout>

可以居中的


ee629f2b0b594548a24c8316c8204a31_tplv-k3u1fbpfcp-zoom-in-crop-mark_4536_0_0_0.png


编辑


NiceSpinner demo



NiceSpinner niceSpinner = (NiceSpinner) findViewById(R.id.nice_spinner);
 niceSpinner.setTextColor(Color.GREEN);
 LinkedList<String> data=new LinkedList<>(Arrays.asList("Zhang", "Phil", "@", "CSDN"));
 niceSpinner.attachDataSource(data); //装载数据
niceSpinner.addOnItemClickListener(new AdapterView.OnItemClickListener() {//item监听事件
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                ((TextView) view).setCompoundDrawablePadding(10);
                ((TextView) view).setCompoundDrawablesWithIntrinsicBounds(AppCompatResources.getDrawable(getApplicationContext(), R.drawable.ic_aa), null, null, null);
            }
        });

NiceSpinner加图标



Drawable icon=this.getResources().getDrawable(R.drawable.ic_aa);
 icon.setBounds(0,0, 30,30);
 mSpinner.setCompoundDrawables(icon,null,null,null);

可以在下拉框的选项(item)中加图片:



mSpinner.addOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                ((TextView) view).setCompoundDrawablePadding(10);
                ((TextView) view).setCompoundDrawablesWithIntrinsicBounds(AppCompatResources.getDrawable(getApplicationContext(), R.drawable.ic_aa), null, null, null);
            }
        });


android  greendao 3.3 工具类



android studio 4.2

gradle 版本:


bda703b400684a7b8f7f12ad17a5f796_tplv-k3u1fbpfcp-zoom-in-crop-mark_4536_0_0_0.png


编辑


使用greendao:


compile 'org.greenrobot:greendao:3.3.0' // 添加库


019f66645ac44ef888bca532c31ae512_tplv-k3u1fbpfcp-zoom-in-crop-mark_4536_0_0_0.png


编辑


工具类:


根据自己的需求自己新建bean;


在代码后部分有activity ,里面进行单例模式调用;


package com.aa.db;
/**
 * Created by Administrator on 2019/5/15 0015.
 */
public class DBManager {
    private final static String dbName = "test_db";
    private static DBManager mInstance;
    private DaoMaster.DevOpenHelper openHelper;
    private Context context;
    public DBManager(Context context) {
        this.context = context;
        openHelper = new DaoMaster.DevOpenHelper(context, dbName, null);
    }
    /**
     * 获取单例引用
     *
     * @param context
     * @return
     */
    public static DBManager getInstance(Context context) {
        if (mInstance == null) {
            synchronized (DBManager.class) {
                if (mInstance == null) {
                    mInstance = new DBManager(context);
                }
            }
        }
        return mInstance;
    }
    private SQLiteDatabase getReadableDatabase() {
        if (openHelper == null) {
            openHelper = new DaoMaster.DevOpenHelper(context, dbName, null);
        }
        SQLiteDatabase db = openHelper.getReadableDatabase();
        return db;
    }
    private SQLiteDatabase getWritableDatabase() {
        if (openHelper == null) {
            openHelper = new DaoMaster.DevOpenHelper(context, dbName, null);
        }
        SQLiteDatabase db = openHelper.getWritableDatabase();
        return db;
    }
    /**
     * 插入一条记录
     *
     * @param data_new
     */
    public void insertUser(data_new data_new) {
        DaoMaster daoMaster = new DaoMaster(getWritableDatabase());
        DaoSession daoSession = daoMaster.newSession();
        data_newDao userDao = daoSession.getData_newDao();
        userDao.insertOrReplace(data_new);
    }
    public void insertUserList(List<data_new> BlackInfoCallMIssedBeans) {
        if (BlackInfoCallMIssedBeans == null || BlackInfoCallMIssedBeans.isEmpty()) {
            return;
        }
        DaoMaster daoMaster = new DaoMaster(getWritableDatabase());
        DaoSession daoSession = daoMaster.newSession();
        data_newDao userDao = daoSession.getData_newDao();
        userDao.insertOrReplaceInTx(BlackInfoCallMIssedBeans);
    }
    public void deleteUser(data_new data_new) {
        DaoMaster daoMaster = new DaoMaster(getWritableDatabase());
        DaoSession daoSession = daoMaster.newSession();
        data_newDao userDao = daoSession.getData_newDao();
        userDao.queryBuilder()
                .where(data_newDao.Properties.NUMBERING.eq(data_new.getNUMBERING()))
                .buildDelete()
                .executeDeleteWithoutDetachingEntities();
    }
    public void updateUser(data_new data_new) {
        DaoMaster daoMaster = new DaoMaster(getWritableDatabase());
        DaoSession daoSession = daoMaster.newSession();
        data_newDao userDao = daoSession.getData_newDao();
        userDao.update(data_new);
    }
    public List<data_new> queryUserList() {
        DaoMaster daoMaster = new DaoMaster(getReadableDatabase());
        DaoSession daoSession = daoMaster.newSession();
        data_newDao userDao = daoSession.getData_newDao();
        QueryBuilder<data_new> qb = userDao.queryBuilder();
//                .orderDesc(data_newDao.Properties.Numbering);
        List<data_new> list = qb.list();
        return list;
    }
    /**
     * 查询用户列表
     */
    public List<data_new> queryUserList(String path) {
        DaoMaster daoMaster = new DaoMaster(getReadableDatabase());
        DaoSession daoSession = daoMaster.newSession();
        data_newDao userDao = daoSession.getData_newDao();
        QueryBuilder<data_new> qb = userDao.queryBuilder();
        qb.where(data_newDao.Properties.NUMBERING.gt(path));
//                .orderAsc(data_newDao.Properties.PhoneNumber);
        List<data_new> list = qb.list();
        return list;
    }
    //
    public List<data_new> queryUser(String numbering) {
        DaoMaster daoMaster = new DaoMaster(getReadableDatabase());
        DaoSession daoSession = daoMaster.newSession();
        data_newDao userDao = daoSession.getData_newDao();
        QueryBuilder<data_new> qb = userDao.queryBuilder();
//        qb.where(data_newDao.Properties.NUMBERING.gt(numbering));
        qb.where(data_newDao.Properties.NUMBERING.eq(numbering));
//                .orderAsc(data_newDao.Properties.PhoneNumber);
        List<data_new> list = qb.list();
        return list;
    }
    //查询已盘数量
    public List<data_new> queryUserInventoried() {
        DaoMaster daoMaster = new DaoMaster(getReadableDatabase());
        DaoSession daoSession = daoMaster.newSession();
        data_newDao userDao = daoSession.getData_newDao();
        QueryBuilder<data_new> qb = userDao.queryBuilder();
//        qb.where(data_newDao.Properties.NUMBERING.gt(numbering));
        qb.where(data_newDao.Properties.Status.eq("已盘"));
//                .orderAsc(data_newDao.Properties.PhoneNumber);
        List<data_new> list = qb.list();
        return list;
    }
}
这是Activity,在这里进行调用:红色标记是调用
public class ActivityPropertyCheckActivity extends Activity implements View.OnClickListener {
    private TextView tvAllQuantity;
    private TextView tvcheckQuantity;
    private int anIntAllAmount;//总数量
    private int anIntCheckAmount;//已盘点数量
    private String mAssertNameing;//资产编号 查询关键字
    private EditText getEd1() {
        return (EditText) findViewById(R.id.ed_1);
    }
    private EditText getEd2() {
        return (EditText) findViewById(R.id.ed_2);
    }
    private EditText getEd3() {
        return (EditText) findViewById(R.id.ed_3);
    }
    private EditText getEd4() {
        return (EditText) findViewById(R.id.ed_4);
    }
    private EditText getEd5() {
        return (EditText) findViewById(R.id.ed_5);
    }
    private EditText getEd6() {
        return (EditText) findViewById(R.id.ed_6);
    }
    private EditText getEd7() {
        return (EditText) findViewById(R.id.ed_7);
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_property_check);
        //获得数据数目
        initData();
        findViewById(R.id.bt_back).setOnClickListener(this);
        findViewById(R.id.bt_conrm_check).setOnClickListener(this);
        tvcheckQuantity = (TextView) findViewById(R.id.tv_check_quantity);
        tvAllQuantity = (TextView) findViewById(R.id.tv_all_quantity);
        IntentFilter filter = new IntentFilter();
        filter.addAction("com.android.server.scannerservice.broadcast");
        this.registerReceiver(mResultReceiver, filter);
        tvcheckQuantity.setText(anIntCheckAmount + "");
        tvAllQuantity.setText(anIntAllAmount + "");
    }
    private void SearchData() {
        data_new dataNew = new data_new();
        dataNew.setNUMBERING(mAssertNameing);
        if (DBManager.getInstance(ActivityPropertyCheckActivity.this).queryUser(mAssertNameing).size() == 0) {
            Toast.makeText(this, "数据不存在,请重新扫描", Toast.LENGTH_SHORT).show();
        } else {
            //数据回显
            dataNew = DBManager.getInstance(ActivityPropertyCheckActivity.this).queryUser(mAssertNameing).get(0);
            getEd2().setText(dataNew.getUSER_OF_DEPARTMENT());
            getEd3().setText(dataNew.getSPECIFICATIONA());
//            getEd7().setText(dataNew.getINVENTORY_AMOUNT());
            getEd5().setText(dataNew.getLOCATION());
            getEd4().setText(dataNew.getUSER_OF_DEPARTMENT());
            getEd6().setText(dataNew.getNOTE());
            //盘点结果状更新;
            //盘点结果状态修改   数据修改
            if (Double.parseDouble(dataNew.getBOOK_AMOUNT()) < Double.parseDouble(dataNew.getINVENTORY_AMOUNT())) {
                dataNew.setINVENTORY_RESULT("盘实");//根据要求进行更改
            } else if (Double.parseDouble(dataNew.getBOOK_AMOUNT()) == Double.parseDouble(dataNew.getINVENTORY_AMOUNT())) {
                dataNew.setINVENTORY_RESULT("盘实");//根据要求进行更改
            } else if (Double.parseDouble(dataNew.getBOOK_AMOUNT()) > Double.parseDouble(dataNew.getINVENTORY_AMOUNT())) {
                dataNew.setINVENTORY_RESULT("盘亏");//根据要求进行更改
            }
        }//其实green到进行了很多优化,增删改查使用合适的数据结构,这里的updata是根据id这是Long型的,是主键。主键必有的。
        DBManager.getInstance(ActivityPropertyCheckActivity.this).updateUser(dataNew);//数据更新
    }
    private void initData() {
        anIntAllAmount = (DBManager.getInstance(ActivityPropertyCheckActivity.this).queryUserList()).size();
        anIntCheckAmount = DBManager.getInstance(ActivityPropertyCheckActivity.this).queryUserInventoried().size();
    }
    private BroadcastReceiver mResultReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            // TODO Auto-generated method stub
            if (intent.getAction().equals("com.android.server.scannerservice.broadcast")) {
                mAssertNameing = intent.getStringExtra("scannerdata");
                getEd1().setText(mAssertNameing);
                List<data_new> list = DBManager.getInstance(ActivityPropertyCheckActivity.this).queryUser(mAssertNameing);
                //扫码后进行资产数量修改
//                DBManager.getInstance(ActivityPropertyCheckActivity.this).modicationInventoryResult(list.get(0));
                list.get(0).setINVENTORY_AMOUNT(Double.parseDouble(list.get(0).getINVENTORY_AMOUNT()) + 1 + "");
                list.get(0).setStatus("已盘");
                DBManager.getInstance(ActivityPropertyCheckActivity.this).updateUser(list.get(0));
                if (mAssertNameing != null) {
                    SearchData();
                }
                refreshData();
            }
        }
    };
    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.bt_back:
                //TODO implement
                finish();
                break;
            case R.id.bt_conrm_check:
                refreshData();
                //TODO implement
                break;
        }
    }
    /*刷新盘点数目和未盘点数目*/
    private void refreshData() {
        initData();
        anIntCheckAmount = DBManager.getInstance(ActivityPropertyCheckActivity.this).queryUserInventoried().size();
        tvAllQuantity.setText(anIntAllAmount + "");
        tvcheckQuantity.setText(anIntCheckAmount + "");
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (mResultReceiver != null) {
            this.unregisterReceiver(mResultReceiver);
        }
    }
}

SQLiteSpy 工具不能查询数据库;



新版的greendao生成3个文件,我们需要从as中复制带同一目录;


把db文件拖拽进SQLiteSpy就能显示;


db文件目录:

data/data /包名/


44f5c2b4f29b46d99eba83bf97e70108_tplv-k3u1fbpfcp-zoom-in-crop-mark_4536_0_0_0.png

e0e9ca71fec7410381cbe484944e13b2_tplv-k3u1fbpfcp-zoom-in-crop-mark_4536_0_0_0.png


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