大家好，我在使用凌空时遇到了问题。
此代码应该与我的wamp服务器中的php文件连接 我被要求全班，所以你去。
package info.androidhive.loginandregistration.activity;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.android.volley.Request.Method;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;
import info.androidhive.loginandregistration.R;
import info.androidhive.loginandregistration.app.AppConfig;
import info.androidhive.loginandregistration.app.AppController;
import info.androidhive.loginandregistration.helper.SQLiteHandler;
import info.androidhive.loginandregistration.helper.SessionManager;
public class RegisterActivity extends Activity {
private static final String TAG = RegisterActivity.class.getSimpleName();
private Button btnRegister;
private Button btnLinkToLogin;
private EditText inputFullName;
private EditText inputEmail;
private EditText inputPassword;
private ProgressDialog pDialog;
private SessionManager session;
private SQLiteHandler db;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
inputFullName = (EditText) findViewById(R.id.name);
inputEmail = (EditText) findViewById(R.id.email);
inputPassword = (EditText) findViewById(R.id.password);
btnRegister = (Button) findViewById(R.id.btnRegister);
btnLinkToLogin = (Button) findViewById(R.id.btnLinkToLoginScreen);
// Progress dialog
pDialog = new ProgressDialog(this);
pDialog.setCancelable(false);
// Session manager
session = new SessionManager(getApplicationContext());
// SQLite database handler
db = new SQLiteHandler(getApplicationContext());
// Check if user is already logged in or not
if (session.isLoggedIn()) {
// User is already logged in. Take him to main activity
Intent intent = new Intent(RegisterActivity.this,
MainActivity.class);
startActivity(intent);
finish();
}
// Register Button Click event
btnRegister.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String name = inputFullName.getText().toString().trim();
String email = inputEmail.getText().toString().trim();
String password = inputPassword.getText().toString().trim();
if (!name.isEmpty() && !email.isEmpty() && !password.isEmpty()) {
registerUser(name, email, password);
} else {
Toast.makeText(getApplicationContext(),
"Please enter your details!", Toast.LENGTH_LONG)
.show();
}
}
});
// Link to Login Screen
btnLinkToLogin.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent i = new Intent(getApplicationContext(),
LoginActivity.class);
startActivity(i);
finish();
}
});
}
/**
* Function to store user in MySQL database will post params(tag, name,
* email, password) to register url
* */
private void registerUser(final String name, final String email,
final String password) {
Log.d(TAG, "Metodo Register user iniciado");
// Tag used to cancel the request
String tag_string_req = "req_register";
pDialog.setMessage("Registering ...");
showDialog();
Log.d(TAG, "Metodo Register user Bandera1");
StringRequest strReq = new StringRequest(Method.POST,AppConfig.URL_REGISTER, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Metodo Register user Bandera2");
Log.d(TAG, "Register Response: " + response.toString());
hideDialog();
try {
Log.d(TAG, "Metodo Register user Bandera3");
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
if (!error) {
// User successfully stored in MySQL
// Now store the user in sqlite
String uid = jObj.getString("uid");
JSONObject user = jObj.getJSONObject("user");
String name = user.getString("name");
String email = user.getString("email");
String created_at = user
.getString("created_at");
// Inserting row in users table
db.addUser(name, email, uid, created_at);
Toast.makeText(getApplicationContext(), "User successfully registered. Try login now!", Toast.LENGTH_LONG).show();
// Launch login activity
Intent intent = new Intent(
RegisterActivity.this,
LoginActivity.class);
startActivity(intent);
finish();
} else {
// Error occurred in registration. Get the error
// message
String errorMsg = jObj.getString("error_msg");
Toast.makeText(getApplicationContext(),
errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
Log.d(TAG, "Error JSON"+e.toString());
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Registration Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting params to register url
Map<String, String> params = new HashMap<String, String>();
params.put("name", name);
params.put("email", email);
params.put("password", password);
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
private void showDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideDialog() {
if (pDialog.isShowing())
pDialog.dismiss();
}
}
最后，它会在应用程序中返回一个空的Toast，而logcat会显示
03-20 03:49:46.964 29537-29537/? I/art: Late-enabling -Xcheck:jni
03-20 03:49:47.101 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_dependencies_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_dependencies_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.323 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_0_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_0_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.377 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_1_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_1_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.459 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_2_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_2_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.516 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_3_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_3_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.571 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_4_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_4_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.631 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_5_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_5_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.714 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_6_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_6_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.803 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_7_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_7_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.869 29537-29537/? W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_8_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_8_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.938 29537-29537/info.androidhive.loginandregistration W/art: Failed execv(/system/bin/dex2oat --runtime-arg -classpath --runtime-arg /system/framework/XposedBridge.jar --instruction-set=arm --instruction-set-features=smp,-div,-atomic_ldrd_strd --runtime-arg -Xnorelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=krait --instruction-set-features=default --dex-file=/data/app/info.androidhive.loginandregistration-1/split_lib_slice_9_apk.apk --oat-file=/data/dalvik-cache/arm/data@app@info.androidhive.loginandregistration-1@split_lib_slice_9_apk.apk@classes.dex) because non-0 exit status
03-20 03:49:47.940 29537-29537/info.androidhive.loginandregistration W/System: ClassLoader referenced unknown path: /data/app/info.androidhive.loginandregistration-1/lib/arm
03-20 03:49:47.999 29537-29537/info.androidhive.loginandregistration I/InstantRun: Starting Instant Run Server for info.androidhive.loginandregistration
03-20 03:49:48.080 29537-29621/info.androidhive.loginandregistration D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
03-20 03:49:48.137 29537-29621/info.androidhive.loginandregistration I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: QUALCOMM Build: 09/02/15, 76f806e, Ibddc658e36
03-20 03:49:48.140 29537-29621/info.androidhive.loginandregistration I/OpenGLRenderer: Initialized EGL, version 1.4
03-20 03:49:56.580 29537-29537/info.androidhive.loginandregistration D/RegisterActivity: Metodo Register user iniciado
03-20 03:49:56.655 29537-29537/info.androidhive.loginandregistration D/RegisterActivity: Metodo Register user Bandera1
03-20 03:49:56.698 29537-29860/info.androidhive.loginandregistration W/System: ClassLoader referenced unknown path: /system/framework/tcmclient.jar
03-20 03:50:04.314 29537-29537/info.androidhive.loginandregistration E/RegisterActivity: Registration Error: null
03-20 03:50:04.339 29537-29537/info.androidhive.loginandregistration D/Volley: [1] Request.finish: 7647 ms: [ ] http://192.168.1.90/android_login_api/register.php 0x67692ab3 NORMAL 1
IP地址正确，服务器正在运行，我不知道错误在哪里。也许有些建议可以解决某些事情是否正常工作？ 注册错误为null，这就是我所拥有的一切。你可以看到我放了一些日志消息，只有＃34; Bandera1＆＃34;得到了显示。