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私は3つのテーブルを持つデータベースを持っています。最初の2つのテーブルは正常に動作します。私の3番目のテーブルはデータを追加しているようです（データベースに文字列を追加しました）。ビューアにデータベースを開き、入力した値ですべての列が配置されました。データベースで問題を見つけることができません
この情報をActivityInvoiceのRecycleradapterに表示すると、 。アプリケーションはシャットダウンします。たぶん、私は他の誰かが見るかもしれないという非常に小さい何かが欠けている。
私はInvoiceActivityで呼び出さgetAllInvoicesをコメントアウト場合はデータなしでロードする活性を得ることができます。
ここInvoiceActivity（万一がありますリサイクルビューの情報を表示）
package com.nuclient.travisbunn.nuclient;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import java.util.ArrayList;
import java.util.List;
public class InvoiceActivity extends AppCompatActivity implements View.OnClickListener{
private AppCompatActivity activity = InvoiceActivity.this;
private RecyclerView recyclerViewInvoices;
private List<Invoice> listInvoices;
private InvoiceRecyclerAdapter invoiceRecyclerAdapter;
private DatabaseHelper databaseHelper;
private FloatingActionButton myFab;
private FloatingActionButton myBack;
private FloatingActionButton myEdit;
private FloatingActionButton mySub;
private Invoice invoice;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_invoice);
getSupportActionBar().setTitle("Invoices");
initViews();
initObjects();
initListeners();
}
// Update recyclerView onResume of activity
@Override
public void onResume(){
super.onResume();
getDataFromSQLite();
}
/**
* This method is to initialize views
*/
private void initViews() {
recyclerViewInvoices = (RecyclerView) findViewById(R.id.recyclerViewInvoices);
}
/**
* This method is to initialize listeners
*/
private void initListeners(){
myFab = (FloatingActionButton) findViewById(R.id.addButtonTwo);
myBack = (FloatingActionButton) findViewById(R.id.backButtonTwo);
myEdit = (FloatingActionButton) findViewById(R.id.editButtonTwo);
mySub = (FloatingActionButton) findViewById(R.id.minusButtonTwo);
myFab.setOnClickListener(this);
myBack.setOnClickListener(this);
myEdit.setOnClickListener(this);
mySub.setOnClickListener(this);
}
/**
* This method is to initialize objects to be used
*/
private void initObjects() {
listInvoices = new ArrayList<Invoice>();
invoiceRecyclerAdapter = new InvoiceRecyclerAdapter(listInvoices);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
recyclerViewInvoices.setLayoutManager(mLayoutManager);
recyclerViewInvoices.setItemAnimator(new DefaultItemAnimator());
recyclerViewInvoices.setHasFixedSize(true);
recyclerViewInvoices.setAdapter(invoiceRecyclerAdapter);
invoice = new Invoice();
databaseHelper = new DatabaseHelper(activity);
getDataFromSQLite();
}
/**
* This method is to fetch all invoice records from SQLite
*/
private void getDataFromSQLite() {
// AsyncTask is used that SQLite operation not blocks the UI Thread.
new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
listInvoices.clear();
listInvoices.addAll(databaseHelper.getAllInvoices());
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
invoiceRecyclerAdapter.notifyDataSetChanged();
}
}.execute();
}
// Method that enables the buttons on bottom
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.addButtonTwo:
Intent intentAddInvoice = new Intent(this, AddInvoiceActivity.class);
startActivityForResult(intentAddInvoice, 1);
break;
case R.id.editButtonTwo:
//editChecked();
break;
case R.id.minusButtonTwo:
/*
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Are you sure?").setPositiveButton("Yes", dialogClickListener);
builder.setNegativeButton("No", dialogClickListener).show();
*/
break;
case R.id.backButtonTwo:
finish();
break;
}
}
}
私invoiceRecyclerAdapterである：ここでは
package com.nuclient.travisbunn.nuclient;
import android.support.v7.widget.AppCompatTextView;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import java.util.List;
public class InvoiceRecyclerAdapter extends RecyclerView.Adapter<InvoiceRecyclerAdapter.InvoiceViewHolder> {
private List<Invoice> listInvoices;
public InvoiceRecyclerAdapter(List<Invoice> listInvoices) {
this.listInvoices = listInvoices;
}
@Override
public InvoiceViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
// inflating recycler item view
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_invoice_recycler, parent, false);
return new InvoiceViewHolder(itemView);
}
@Override
public void onBindViewHolder(InvoiceRecyclerAdapter.InvoiceViewHolder holder, int position) {
final int pos = position;
holder.textViewName.setText(listInvoices.get(position).getName());
holder.textViewDate.setText(listInvoices.get(position).getDate());
holder.textViewTime.setText(listInvoices.get(position).getTime());
holder.textViewMoney.setText(listInvoices.get(position).getMoney());
holder.textViewRate.setText(listInvoices.get(position).getRate());
/*
holder.checkBox.setChecked(listClients.get(position).isSelected());
holder.checkBox.setTag(listClients.get(position));
holder.checkBox.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
CheckBox cb = (CheckBox) v;
Client contact = (Client) cb.getTag();
contact.setSelected(cb.isChecked());
listClients.get(pos).setSelected(cb.isChecked());
}
});
*/
}
@Override
public int getItemCount() {
Log.v(InvoiceRecyclerAdapter.class.getSimpleName(),""+listInvoices.size());
return listInvoices.size();
}
@Override
public long getItemId(int position) {
return position;
}
/**
* ViewHolder class
*/
public class InvoiceViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public AppCompatTextView textViewName;
public AppCompatTextView textViewDate;
public AppCompatTextView textViewTime;
public AppCompatTextView textViewMoney;
public AppCompatTextView textViewRate;
//public AppCompatCheckBox checkBox;
public InvoiceViewHolder(View view) {
super(view);
textViewName = (AppCompatTextView) view.findViewById(R.id.textviewInvoiceName);
textViewDate = (AppCompatTextView) view.findViewById(R.id.textviewInvoiceDate);
textViewTime = (AppCompatTextView) view.findViewById(R.id.textviewInvoiceTime);
textViewMoney = (AppCompatTextView) view.findViewById(R.id.textviewInvoiceMoney);
textViewRate = (AppCompatTextView) view.findViewById(R.id.textviewInvoiceRate);
//checkBox = (AppCompatCheckBox) view.findViewById(R.id.checkBox);
view.setOnClickListener(this);
}
@Override
public void onClick(View view) {
}
}
}
は（スペースのテーブルを請求書に限る）私のDatabaseHelperです：
package com.nuclient.travisbunn.nuclient;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import java.util.ArrayList;
import java.util.List;
public class DatabaseHelper extends SQLiteOpenHelper {
// Database Version
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "Manager.db";
/*
*
* Beginning of INVOICE Table
*
*/
// User table name
private static final String TABLE_INVOICE = "invoice";
// User Table Columns names
private static final String COLUMN_INVOICE_ID = "invoice_id";
private static final String COLUMN_INVOICE_NAME = "invoice_name";
private static final String COLUMN_INVOICE_DATE = "invoice_date";
private static final String COLUMN_INVOICE_TIME = "invoice_time";
private static final String COLUMN_INVOICE_MONEY = "invoice_money";
private static final String COLUMN_INVOICE_RATE = "invoice_rate";
// create table sql query
private String CREATE_INVOICE_TABLE = "CREATE TABLE " + TABLE_INVOICE + "("
+ COLUMN_INVOICE_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_INVOICE_NAME + " TEXT,"
+ COLUMN_INVOICE_DATE + " TEXT," + COLUMN_INVOICE_TIME + " TEXT," + COLUMN_INVOICE_MONEY + " TEXT," + COLUMN_INVOICE_RATE + " TEXT" +")";
// drop table sql query
private String DROP_INVOICE_TABLE = "DROP TABLE IF EXISTS " + TABLE_INVOICE;
/*
*
* End of INVOICE Table
*
*/
/**
* Constructor
*/
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(CREATE_USER_TABLE);
db.execSQL(CREATE_CLIENT_TABLE);
db.execSQL(CREATE_INVOICE_TABLE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
//Drop User Table if exist
db.execSQL(DROP_USER_TABLE);
//Drop Client table if exist
db.execSQL(DROP_CLIENT_TABLE);
//Drop Invoice table if exist
db.execSQL(DROP_INVOICE_TABLE);
// Create tables again
onCreate(db);
}
/*
*
*Start of INVOICE methods
*
*/
/**
* This method is to create invoice record
*/
public void addInvoice(Invoice invoice) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(COLUMN_INVOICE_NAME, invoice.getName());
values.put(COLUMN_INVOICE_DATE, invoice.getDate());
values.put(COLUMN_INVOICE_TIME, invoice.getTime());
values.put(COLUMN_INVOICE_MONEY, invoice.getMoney());
values.put(COLUMN_INVOICE_RATE, invoice.getRate());
// Inserting Row
db.insert(TABLE_INVOICE, null, values);
db.close();
}
/**
* This method is to fetch all invoice and return the list of client records
*
* @return list
*/
public List<Invoice> getAllInvoices() {
// array of columns to fetch
String[] columns = {
COLUMN_INVOICE_ID,
COLUMN_INVOICE_NAME,
COLUMN_INVOICE_DATE,
COLUMN_INVOICE_TIME,
COLUMN_INVOICE_MONEY,
COLUMN_INVOICE_RATE
};
// sorting orders
String sortOrder =
COLUMN_INVOICE_NAME + " ASC";
List<Invoice> invoiceList = new ArrayList<Invoice>();
SQLiteDatabase db = this.getReadableDatabase();
// query the client table
Cursor cursor = db.query(TABLE_INVOICE, //Table to query
columns, //columns to return
null, //columns for the WHERE clause
null, //The values for the WHERE clause
null, //group the rows
null, //filter by row groups
sortOrder); //The sort order
// Traversing through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Invoice invoice = new Invoice();
invoice.setId(Integer.parseInt(cursor.getString(cursor.getColumnIndex(COLUMN_INVOICE_ID))));
invoice.setName(cursor.getString(cursor.getColumnIndex(COLUMN_INVOICE_NAME)));
invoice.setDate(cursor.getString(cursor.getColumnIndex(COLUMN_INVOICE_DATE)));
invoice.setTime(cursor.getString(cursor.getColumnIndex(COLUMN_INVOICE_TIME)));
invoice.setMoney(cursor.getString(cursor.getColumnIndex(COLUMN_INVOICE_MONEY)));
invoice.setRate(cursor.getString(cursor.getColumnIndex(COLUMN_INVOICE_RATE)));
// Adding client record to list
invoiceList.add(invoice);
} while (cursor.moveToNext());
}
cursor.close();
db.close();
// return client list
return invoiceList;
}
/**
* This method to update invoice record
*
* @param invoice
*/
public void updateInvoice(Invoice invoice) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(COLUMN_INVOICE_NAME, invoice.getName());
values.put(COLUMN_INVOICE_DATE, invoice.getDate());
values.put(COLUMN_INVOICE_TIME, invoice.getTime());
values.put(COLUMN_INVOICE_MONEY, invoice.getMoney());
values.put(COLUMN_INVOICE_RATE, invoice.getRate());
// updating row
db.update(TABLE_INVOICE, values, COLUMN_INVOICE_ID + " = ?",
new String[]{String.valueOf(invoice.getId())});
db.close();
}
/**
* This method is to delete invoice record
*
* @param invoice
*/
public void deleteInvoice(Invoice invoice) {
SQLiteDatabase db = this.getWritableDatabase();
// delete invoice record by id
db.delete(TABLE_INVOICE, COLUMN_INVOICE_ID + " = ?",
new String[]{String.valueOf(invoice.getId())});
db.close();
}
/**
* This method to check client exist or not
*
*/
public boolean checkInvoice(String email) {
// array of columns to fetch
String[] columns = {
COLUMN_INVOICE_ID
};
SQLiteDatabase db = this.getReadableDatabase();
// selection criteria
String selection = COLUMN_INVOICE_NAME + " = ?";
// selection argument
String[] selectionArgs = {email};
// query client table with condition
Cursor cursor = db.query(TABLE_INVOICE, //Table to query
columns, //columns to return
selection, //columns for the WHERE clause
selectionArgs, //The values for the WHERE clause
null, //group the rows
null, //filter by row groups
null); //The sort order
int cursorCount = cursor.getCount();
cursor.close();
db.close();
return cursorCount > 0;
}
/*
*
*End of INVOICE methods
*
*/
}
正確なエラーは何ですか？あなたのlogcatを投稿してください。 – Henry
4月18日00：24：09.546 6824から6824/com.nuclient.travisbunn.nuclient E/AndroidRuntime：致命的な例外：メインプロセス： com.nuclient.travisbunn.nuclient、PID：6824 android.view.InflateException ：バイナリXMLファイルライン＃168：インフレータブルクラスのクラス もっと後ろのインフレータとリサイクルアダプターについてもっと知りたい場合はインフレータを見てください... @Henry –
あなたが間違っていないかどうかを確認してくださいレイアウトファイルの1つ。 – Henry