我在数据库程序中有问题请指导我。 我手动创建了一个数据库并将其复制到assets文件夹并运行我的程序的所有部分，但我不知道如何完成更新，当它运行时，没有问题，但它没有更新。
这是我的数据库代码：
package com.alireza.fitnessclub;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class DatabaseHandler extends SQLiteOpenHelper {
private Context main_context;
private static String DB_PATH;
private static int DB_VERSION = 3;
private static final String DB_NAME = "fitness_db.db";
private static final String DB_TBL_INFO = "personal";
private SQLiteDatabase db;
public DatabaseHandler(Context context) {
super(context, DB_NAME, null, DB_VERSION);
main_context = context;
DB_PATH = context.getCacheDir().getPath() + "/" + DB_NAME;
}
@Override
public void onCreate(SQLiteDatabase db) {
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
private boolean dbExists() {
File f = new File(DB_PATH);
if (f.exists())
return true;
else
return false;
}
private boolean copyDB() {
try {
FileOutputStream out = new FileOutputStream(DB_PATH);
InputStream in = main_context.getAssets().open(DB_NAME);
byte[] buffer = new byte[1024];
int ch;
while ((ch = in.read(buffer)) > 0) {
out.write(buffer, 0, ch);
}
out.flush();
out.close();
in.close();
return true;
} catch (Exception e) {
//do nothing
return false;
}
}
public void open() {
if (dbExists()) {
try {
File temp = new File(DB_PATH);
db = SQLiteDatabase.openDatabase(temp.getAbsolutePath(), null, SQLiteDatabase.OPEN_READWRITE);
} catch (Exception e) {
//do nothing
}
} else {
if (copyDB())
open();
}
}
@Override
public synchronized void close() {
db.close();
}
public boolean setFavoritState(int id, int state) {
ContentValues cv = new ContentValues();
cv.put("fav_flag", state);
long result = db.update(DB_TBL_INFO, cv, "id = ? ", new String[]{String.valueOf(id)});
if (result < 1)
return false;
else
return true;
}
public int getFavoritState(int id) {
Cursor result = db.rawQuery("SELECT * FROM " + DB_TBL_INFO + " WHERE id = '" + id + "'", null);
result.moveToFirst();
return (Integer.parseInt(result.getString(18)));
}
public List<HashMap<String, Object>> getTableData() {
Cursor result = db.rawQuery("SELECT * FROM " + DB_TBL_INFO, null);
List<HashMap<String, Object>> all_data = new ArrayList<>();
while (result.moveToNext()) {
HashMap<String, Object> temp = new HashMap<>();
temp.put("id", result.getString(0));
temp.put("name", result.getString(1));
temp.put("family", result.getString(2));
temp.put("photo",result.getString(16));
temp.put("date", result.getString(17));
if (result.getString(18).equals("1"))
{
temp.put("fav_flag", R.drawable.fav);
}
else
{
temp.put("fav_flag", R.drawable.fav_click);
}
all_data.add(temp);
}
return all_data;
}
public HashMap<String, Object> getData(String id) {
Cursor result = db.rawQuery("SELECT * FROM " + DB_TBL_INFO + " WHERE id = '" + id + "' ", null);
result.moveToFirst();
HashMap<String, Object> temp = new HashMap<>();
temp.put("id", result.getString(0));
temp.put("name", result.getString(1));
temp.put("family", result.getString(2));
temp.put("age", result.getString(3));
temp.put("weight", result.getString(4));
temp.put("height", result.getString(5));
temp.put("arm", result.getString(6));
temp.put("shoulder", result.getString(7));
temp.put("chest", result.getString(8));
temp.put("abdomen", result.getString(9));
temp.put("glutes", result.getString(10));
temp.put("femore", result.getString(11));
temp.put("gas", result.getString(12));
temp.put("phone", result.getString(13));
temp.put("email", result.getString(14));
temp.put("sex", result.getString(15));
temp.put("photo", result.getString(16));
temp.put("date", result.getString(17));
if (result.getString(18).equals("1"))
{
temp.put("fav_flag", R.drawable.fav);
}
else
{
temp.put("fav_flag", R.drawable.fav_click);
}
temp.put("program", result.getString(19));
return temp;
}
public void inserData(HashMap<String , Object> all_data)
{
open();
ContentValues cv = new ContentValues();
cv.put("name", all_data.get("name").toString());
cv.put("family",all_data.get("family").toString());
cv.put("age", all_data.get("age").toString());
cv.put("weight", all_data.get("weight").toString());
cv.put("height", all_data.get("height").toString());
cv.put("arm", all_data.get("arm").toString());
cv.put("shoulder", all_data.get("shoulder").toString());
cv.put("chest", all_data.get("chest").toString());
cv.put("abdomen", all_data.get("abdomen").toString());
cv.put("glutes", all_data.get("glutes").toString());
cv.put("femore", all_data.get("femore").toString());
cv.put("gas", all_data.get("gas").toString());
cv.put("phone", all_data.get("phone").toString());
cv.put("email", all_data.get("email").toString());
cv.put("sex",all_data.get("sex").toString());
cv.put("photo", all_data.get("photo").toString());
cv.put("fav_flag",all_data.get("fav_flag").toString());
db.insert(DB_TBL_INFO,null,cv);
db.close();
}
public void updateData(HashMap<String , Object> all_data)
{
open();
ContentValues cv = new ContentValues();
cv.put("name", all_data.get("name").toString());
cv.put("family", all_data.get("family").toString());
cv.put("age", all_data.get("age").toString());
cv.put("weight", all_data.get("weight").toString());
cv.put("height", all_data.get("height").toString());
cv.put("arm", all_data.get("arm").toString());
cv.put("shoulder", all_data.get("shoulder").toString());
cv.put("chest", all_data.get("chest").toString());
cv.put("abdomen", all_data.get("abdomen").toString());
cv.put("glutes", all_data.get("glutes").toString());
cv.put("femore", all_data.get("femore").toString());
cv.put("gas", all_data.get("gas").toString());
cv.put("phone", all_data.get("phone").toString());
cv.put("email", all_data.get("email").toString());
db.update(DB_TBL_INFO, cv, "id =?",new String[]{all_data.get("id").toString()});
db.close();
}
public List<HashMap<String, Object>> getTableOfsearch(String q)
{
Cursor result = db.rawQuery("SELECT * FROM " + DB_TBL_INFO + " WHERE " + q, null);
List<HashMap<String, Object>> all_data = new ArrayList<>();
while (result.moveToNext()) {
HashMap<String, Object> temp = new HashMap<>();
temp.put("id", result.getString(0));
temp.put("name", result.getString(1));
temp.put("family", result.getString(2));
temp.put("date", result.getString(17));
if (result.getString(18).equals("1"))
{
temp.put("fav_flag", R.drawable.fav);
}
else
{
temp.put("fav_flag", R.drawable.fav_click);
}
all_data.add(temp);
}
return all_data;
}
public List<HashMap<String, Object>> getTblFavoritPersonal() {
Cursor result = db.rawQuery("SELECT * FROM " + DB_TBL_INFO + " WHERE fav_flag ='0' ", null);
List<HashMap<String, Object>> all_data = new ArrayList<>();
while (result.moveToNext()) {
HashMap<String, Object> temp = new HashMap<>();
temp.put("id", result.getString(0));
temp.put("name", result.getString(1));
temp.put("family", result.getString(2));
temp.put("photo",result.getString(16));
temp.put("date", result.getString(17));
all_data.add(temp);
}
return all_data;
}
public void deleteData(String id)
{
open();
db.delete(DB_TBL_INFO,"id=?",new String[]{id});
db.close();
}
}
这是我使用更新的活动：
package com.alireza.fitnessclub;
import android.Manifest;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import java.io.File;
import java.util.HashMap;
public class Profile_activity extends AppCompatActivity {
private DatabaseHandler db;
private HashMap<String, Object> personals;
private TextView name, family, age, weight, height, arm, shoulder, chest, abdomen, glutes, femore, gast, date, phone, email , gender;
EditText et_name, et_family, et_age, et_weight, et_height, et_arm, et_shoulder, et_chest, et_abdomen, et_glutes, et_femore, et_gast, et_date, et_phone, et_email;
private ImageView fav , pro_img1;
private ImageButton dial;
private String phone_num ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile_activity);
Toolbar tolbar= (Toolbar)findViewById(R.id.app_bar);
setSupportActionBar(tolbar);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
db = new DatabaseHandler(getBaseContext());
Bundle bData = getIntent().getExtras();
db.open();
personals = db.getData(bData.getString("id"));
name = (TextView) findViewById(R.id.txt_name);
family = (TextView) findViewById(R.id.txt_family);
age = (TextView) findViewById(R.id.txt_age);
weight = (TextView) findViewById(R.id.txt_weight);
height = (TextView) findViewById(R.id.txt_height);
arm = (TextView) findViewById(R.id.txt_arm);
shoulder = (TextView) findViewById(R.id.txt_shoulder);
chest = (TextView) findViewById(R.id.txt_chest);
abdomen = (TextView) findViewById(R.id.txt_abdomen);
glutes = (TextView) findViewById(R.id.txt_glutes);
femore = (TextView) findViewById(R.id.txt_femore);
gast = (TextView) findViewById(R.id.txt_gast);
date = (TextView) findViewById(R.id.txt_date);
gender =(TextView)findViewById(R.id.txt_gender);
fav = (ImageView) findViewById(R.id.fav_img_btn);
dial = (ImageButton) findViewById(R.id.dial_img);
pro_img1 = (ImageView)findViewById(R.id.profile_img1);
name.setText(personals.get("name").toString());
family.setText(personals.get("family").toString());
age.setText(personals.get("age").toString());
weight.setText(personals.get("weight").toString());
height.setText(personals.get("height").toString());
arm.setText(personals.get("arm").toString());
shoulder.setText(personals.get("shoulder").toString());
chest.setText(personals.get("chest").toString());
abdomen.setText(personals.get("abdomen").toString());
glutes.setText(personals.get("glutes").toString());
femore.setText(personals.get("femore").toString());
gast.setText(personals.get("gas").toString());
date.setText(personals.get("date").toString());
gender.setText(personals.get("sex").toString());
phone_num = personals.get("phone").toString();
File imgfile = new File(personals.get("photo").toString());
if (imgfile.exists()) {
Bitmap mybitmap = BitmapFactory.decodeFile(imgfile.getAbsolutePath());
pro_img1.setImageBitmap(mybitmap);
} else {
pro_img1.setImageResource(R.drawable.man);
}
fav.setImageResource(Integer.parseInt(personals.get("fav_flag").toString()));
db.close();
}
public void onImgFav(View v) {
db.open();
int id = Integer.parseInt(personals.get("id").toString());
if (db.getFavoritState(id) == 0) {
db.setFavoritState(id, 1);
fav.setImageResource(R.drawable.fav);
} else {
db.setFavoritState(id, 0);
fav.setImageResource(R.drawable.fav_click);
}
db.close();
}
public void onEditClick(View v)
{
AlertDialog.Builder loder = new AlertDialog.Builder(this);
LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.edit_activity , (ViewGroup)findViewById(R.id.edit_layout));
et_name = (EditText) layout.findViewById(R.id.edit_name);
et_family = (EditText) layout.findViewById(R.id.edit_family);
et_age = (EditText) layout.findViewById(R.id.edit_age);
et_weight = (EditText) layout.findViewById(R.id.edit_weight);
et_height = (EditText) layout.findViewById(R.id.edit_height);
et_arm = (EditText) layout.findViewById(R.id.edit_arm);
et_shoulder = (EditText) layout.findViewById(R.id.edit_shoulder);
et_chest = (EditText) layout.findViewById(R.id.edit_chest);
et_abdomen = (EditText) layout.findViewById(R.id.edit_abdomen);
et_glutes = (EditText) layout.findViewById(R.id.edit_glutes);
et_femore = (EditText) layout.findViewById(R.id.edit_femore);
et_gast = (EditText) layout.findViewById(R.id.edit_gast);
et_phone = (EditText) layout.findViewById(R.id.edit_phone);
et_email = (EditText) layout.findViewById(R.id.edit_email);
et_name.setText(personals.get("name").toString());
et_family.setText(personals.get("family").toString());
et_age.setText(personals.get("age").toString());
et_weight.setText(personals.get("weight").toString());
et_height.setText(personals.get("height").toString());
et_arm.setText(personals.get("arm").toString());
et_shoulder.setText(personals.get("shoulder").toString());
et_chest.setText(personals.get("chest").toString());
et_abdomen.setText(personals.get("abdomen").toString());
et_glutes.setText(personals.get("glutes").toString());
et_femore.setText(personals.get("femore").toString());
et_gast.setText(personals.get("gas").toString());
et_phone.setText(personals.get("phone").toString());
et_email.setText(personals.get("email").toString());
loder.setView(layout);
loder.setCancelable(false);
loder.setPositiveButton("Update", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which)
{
db.open();
HashMap<String, Object> data = new HashMap<>();
data.put("name", et_name.getText().toString());
data.put("family", et_family.getText().toString());
data.put("age", et_age.getText().toString());
data.put("weight", et_weight.getText().toString());
data.put("height", et_height.getText().toString());
data.put("arm", et_arm.getText().toString());
data.put("shoulder", et_shoulder.getText().toString());
data.put("chest", et_chest.getText().toString());
data.put("abdomen", et_abdomen.getText().toString());
data.put("glutes", et_glutes.getText().toString());
data.put("femore", et_femore.getText().toString());
data.put("gas", et_gast.getText().toString());
data.put("phone", et_phone.getText().toString());
data.put("email", et_email.getText().toString());
db.updateData(data);
db.close();
}
});
loder.setNegativeButton("Back", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
loder.create();
loder.show();
}
public void onDialClick(View v) {
final AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setCancelable(true);
alert.setIcon(R.drawable.call);
alert.setTitle("Dial");
alert.setMessage( phone_num + " ?");
alert.setPositiveButton("call", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which)
{
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:0" + phone_num));
if (ActivityCompat.checkSelfPermission(getBaseContext(), Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
return;
}
startActivity(intent);
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which)
{
dialog.dismiss();
}
});
alert.show();
}
public void onSmsClick(View v)
{
final AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setCancelable(true);
alert.setTitle("SMS");
alert.setIcon(R.drawable.massag);
alert.setMessage( phone_num + " ?");
alert.setPositiveButton("SMS", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which)
{
String smsText = "";
Uri uri = Uri.parse("smsto:0" + phone_num);
Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
intent.putExtra("sms_body", smsText);
startActivity(intent);
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which)
{
dialog.dismiss();
}
});
alert.show();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
public void onRestart()
{
super.onRestart();
finish();
startActivity(getIntent());
}
}