Android的工作室getSlotFromBufferLocked:未知缓冲区错误 [英] Android studio getSlotFromBufferLocked: unknown buffer error
问题描述
我想打一个简单的登录和注册应用程序,使用户可以创建一个帐户。 (姓名,用户名,密码) 我使用WAMP和MySQL数据库,我存储账户。
当我填写登记表上的用户信息,然后点击注册我得到以下错误:
九月九号至十四号:30:39.864 2624年至2638年/ com.example.appname.appname E /表面:getSlotFromBufferLocked:未知缓冲区:0xab7115e0
9月9日至14号:30:48.632 2624年至2638年/ com.example.appname.appname E /表面:getSlotFromBufferLocked:未知缓冲区:0xab7125a0
9月9日至14号:30:51.940 2624年至2638年/ com.example.appname.appname E /表面:getSlotFromBufferLocked:未知缓冲区:0xab7125a0
当我去检查它没有存储帐户数据库。
MainActivity.java
进口android.app.Activity;
进口android.content.Intent;
进口android.support.v7.app.AppCompatActivity;
进口android.os.Bundle;
进口android.view.Menu;
进口android.view.MenuItem;
进口android.view.View;
公共类MainActivity延伸活动{
@覆盖
保护无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_main);
}
公共无效新用户注册(视图v)
{
startActivity(新意图(这一点,Register.class));
}
公共无效用户登陆(查看视图)
{
}
}
Register.java
进口android.app.Activity;
进口android.support.v7.app.AppCompatActivity;
进口android.os.Bundle;
进口android.view.Menu;
进口android.view.MenuItem;
进口android.view.View;
进口android.widget.EditText;
公共类注册扩展活动{
的EditText ET_NAME,ET_USER_NAME,ET_USER_PASS;
字符串名称,用户名,user_pass;
@覆盖
保护无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.register_layout);
ET_NAME =(EditText上)findViewById(R.id.name);
ET_USER_NAME =(EditText上)findViewById(R.id.new_user_name);
ET_USER_PASS =(EditText上)findViewById(R.id.new_user_pass);
}
公共无效新用户注册(查看视图)
{
。NAME = ET_NAME.getText()的toString();
用户名= ET_USER_NAME.getText()的toString()。
user_pass = ET_USER_PASS.getText()的toString()。
字符串方法=注册;
BackgroundTask backgroundTask =新BackgroundTask(Register.this);
backgroundTask.execute(法,名,用户名,user_pass);
完();
}
}
Backgroundtask.java
进口android.app.AlertDialog;
进口android.content.Context;
进口android.os.AsyncTask;
进口android.widget.Toast;
进口java.io.BufferedReader中;
进口java.io.BufferedWriter中;
进口java.io.IOException异常;
进口的java.io.InputStream;
进口java.io.InputStreamReader中;
进口java.io.OutputStream中;
进口java.io.OutputStreamWriter中;
进口java.net.HttpURLConnection中;
进口java.net.MalformedURLException;
进口的java.net.URL;
进口java.net.URLEn codeR;
公共类BackgroundTask扩展的AsyncTask<字符串,太虚,字符串> {
AlertDialog alertDialog;
上下文CTX;
BackgroundTask(上下文CTX){
this.ctx = CTX;
}
@覆盖
在preExecute保护无效(){
super.on preExecute();
}
@覆盖
保护字符串doInBackground(字符串... PARAMS){
字符串reg_url =HTTP://10.0.2.2.2/webapp/register.php;
字符串LOGIN_URL =HTTP://10.0.2.2.2/webapp/login.php;
字符串方法= PARAMS [0];
如果(method.equals(注册)){
字符串名称= PARAMS [1];
字符串用户名= PARAMS [2];
串user_pass = PARAMS [3];
尝试 {
网址URL =新的URL(reg_url);
HttpURLConnection的HttpURLConnection的=(HttpURLConnection类)url.openConnection();
httpURLConnection.setRequestMethod(POST);
httpURLConnection.setDoOutput(真正的);
的OutputStream OS = httpURLConnection.getOutputStream();
BufferedWriter将BufferedWriter将=新的BufferedWriter(新OutputStreamWriter(OS,UTF-8));
字符串数据= URLEn coder.en code(用户,UTF-8)+=+ URLEn coder.en code(姓名,UTF-8) +与& +
URLEn coder.en code(用户名,UTF-8)+=+ URLEn coder.en code(用户名,UTF-8)+&放大器; +
URLEn coder.en code(user_pass,UTF-8)+=+ URLEn coder.en code(user_pass,UTF-8);
bufferedWriter.write(数据);
bufferedWriter.flush();
bufferedWriter.close();
OS.close();
InputStream的IS = httpURLConnection.getInputStream();
IS.close();
返回注册成功......;
}赶上(MalformedURLException异常E){
e.printStackTrace();
}赶上(IOException异常E){
e.printStackTrace();
}
}
返回null;
}
@覆盖
保护无效onProgressUpdate(空...值){
super.onProgressUpdate(值);
}
@覆盖
保护无效onPostExecute(字符串结果){
Toast.makeText(CTX,结果,Toast.LENGTH_LONG).show();
}
}
register.php
< PHP
要求的init.php;
$ NAME = $ _ POST [用户];
$用户名= $ _ POST [用户名];
$ user_pass = $ _ POST [user_pass];
$ sql_query =插入USER_INFO值('$名字','$用户名,$ user_pass');;
如果(mysqli_query($ CON,$ sql_query))
{
//回声< H3>数据插入成功...< / H3>中;
}
其他{
//回应数据插入错误。mysqli_error($ CON)。
}
?>
的init.php
< PHP
$ DB_NAME =myDBname;
$ mysql_user =根;
$ mysql_pass =根;
$ SERVER_NAME =localhost的;
$ CON = mysqli_connect($服务器名称,$ mysql_user,$ mysql_pass,$ DB_NAME);
如果(!$ CON)
{
//回声连接错误.mysqli_connect_error();
}
其他
{
//回声< H3>数据库连接成功.....< / H3>中;
}
?>
我认为,这是棉花糖具体。您是否使用了棉花糖的设备?
我已经注意到这个错误是我每次应用程序(并不重要),或退出之间切换出它们打印出来,而当活动被破坏。
我试过两个的Nexus 5S运行相同的应用程序 - 一个正在运行的棒棒堂和其他棉花糖,而这些记录仅打印出现在棉花糖的版本 - 与每一个应用程序,而不仅仅是一个我要建
I want to make a simple login and register app, so the user can create an account. (name, username, password) I use WAMP and a MYSQL database where I store the accounts.
When I fill in the user info on the registration form and click register I get the following error:
09-14 09:30:39.864 2624-2638/com.example.appname.appname E/Surface﹕ getSlotFromBufferLocked: unknown buffer: 0xab7115e0
09-14 09:30:48.632 2624-2638/com.example.appname.appname E/Surface﹕ getSlotFromBufferLocked: unknown buffer: 0xab7125a0
09-14 09:30:51.940 2624-2638/com.example.appname.appname E/Surface﹕ getSlotFromBufferLocked: unknown buffer: 0xab7125a0
When I go check the database it didn't store the account.
MainActivity.java
import android.app.Activity;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void userReg(View v)
{
startActivity(new Intent(this, Register.class));
}
public void userLogin(View view)
{
}
}
Register.java
import android.app.Activity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
public class Register extends Activity {
EditText ET_NAME,ET_USER_NAME,ET_USER_PASS;
String name,user_name,user_pass;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.register_layout);
ET_NAME = (EditText) findViewById(R.id.name);
ET_USER_NAME = (EditText) findViewById(R.id.new_user_name);
ET_USER_PASS = (EditText) findViewById(R.id.new_user_pass);
}
public void userReg(View view)
{
name = ET_NAME.getText().toString();
user_name = ET_USER_NAME.getText().toString();
user_pass = ET_USER_PASS.getText().toString();
String method = "register";
BackgroundTask backgroundTask = new BackgroundTask(Register.this);
backgroundTask.execute(method,name,user_name,user_pass);
finish();
}
}
Backgroundtask.java
import android.app.AlertDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.Toast;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
public class BackgroundTask extends AsyncTask<String, Void, String> {
AlertDialog alertDialog;
Context ctx;
BackgroundTask(Context ctx) {
this.ctx = ctx;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected String doInBackground(String... params) {
String reg_url = "http://10.0.2.2.2/webapp/register.php";
String login_url = "http://10.0.2.2.2/webapp/login.php";
String method = params[0];
if (method.equals("register")) {
String name = params[1];
String user_name = params[2];
String user_pass = params[3];
try {
URL url = new URL(reg_url);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoOutput(true);
OutputStream OS = httpURLConnection.getOutputStream();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(OS, "UTF-8"));
String data = URLEncoder.encode("user", "UTF-8") + "=" + URLEncoder.encode(name, "UTF-8") + "&" +
URLEncoder.encode("user_name", "UTF-8") + "=" + URLEncoder.encode(user_name, "UTF-8") + "&" +
URLEncoder.encode("user_pass", "UTF-8") + "=" + URLEncoder.encode(user_pass, "UTF-8");
bufferedWriter.write(data);
bufferedWriter.flush();
bufferedWriter.close();
OS.close();
InputStream IS = httpURLConnection.getInputStream();
IS.close();
return "Registration Success...";
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
@Override
protected void onProgressUpdate(Void... values) {
super.onProgressUpdate(values);
}
@Override
protected void onPostExecute(String result) {
Toast.makeText(ctx, result, Toast.LENGTH_LONG).show();
}
}
register.php
<?php
require "init.php";
$name = $_POST["user"];
$user_name = $_POST["user_name"];
$user_pass = $_POST["user_pass"];
$sql_query = "insert into user_info values('$name','$user_name','$user_pass');";
if(mysqli_query($con,$sql_query))
{
//echo"<h3> Data insertion success...</h3>";
}
else{
//echo "Data insertion error..".mysqli_error($con);
}
?>
init.php
<?php
$db_name="myDBname";
$mysql_user = "root";
$mysql_pass = "root";
$server_name="localhost";
$con = mysqli_connect($server_name,$mysql_user,$mysql_pass,$db_name);
if(!$con)
{
//echo"Connection Error".mysqli_connect_error();
}
else
{
//echo"<h3> Database connection success.....</h3>";
}
?>
I believe that this is Marshmallow specific. Are you using a Marshmallow device?
I've noticed this error is printed out every time I switch between applications (doesn't matter which) or exit out of them, and when activities are destroyed.
I've tried running the same apps on two Nexus 5s - one running Lollipop and the other Marshmallow, and these log prints only appeared on the Marshmallow version - with every app, not just the one I'm building.
Not sure why this happens, but I opened a report here.
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