這是LoginActivity.java
import android.content.DialogInterface;
import android.content.Intent;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.AppCompatButton;
import android.support.v7.widget.AppCompatEditText;
import android.support.v7.widget.AppCompatTextView;
import android.text.TextUtils;
import android.view.View;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.Toast;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
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;
public class LoginActivity extends AppCompatActivity {
AppCompatEditText etPhone, etPassword;
ProgressBar progressBar;
AppCompatTextView tvRegister;
AppCompatButton buttonLogin;
@Override
protected void onCreate (Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
if (SharedPrefManager.getInstance(this).isLoggedIn()) {
finish();
startActivity(new Intent(this, ProfileActivity.class));
}
progressBar = (ProgressBar) findViewById(R.id.progressBar);
etPhone = (AppCompatEditText) findViewById(R.id.etPhone);
etPassword = (AppCompatEditText) findViewById(R.id.etPassword);
buttonLogin = (AppCompatButton) findViewById(R.id.buttonLogin);
//if user presses on login
//calling the method login
buttonLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
userLogin();
}
});
//if user presses on not registered
tvRegister = (AppCompatTextView) findViewById(R.id.tvRegister);
tvRegister.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//open register screen
finish();
startActivity(new Intent(getApplicationContext(), MainActivity.class));
}
});
}
private void userLogin() {
//first getting the values
final String phone = etPhone.getText().toString();
final String password = etPassword.getText().toString();
//validating inputs
if (TextUtils.isEmpty(phone)) {
etPhone.setError("Please enter your username");
etPhone.requestFocus();
return;
}
if (TextUtils.isEmpty(password)) {
etPassword.setError("Please enter your password");
etPassword.requestFocus();
return;
}
//if everything is fine
StringRequest stringRequest = new StringRequest(Request.Method.POST, URLs.URL_LOGIN,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
progressBar.setVisibility(View.GONE);
try {
//converting response to json object
JSONObject obj = new JSONObject(response);
//if no error in response
if (!obj.getBoolean("error")) {
Toast.makeText(getApplicationContext(), obj.getString("message"), Toast.LENGTH_SHORT).show();
//getting the user from the response
JSONObject userJson = obj.getJSONObject("user");
//creating a new user object
User user = new User(
userJson.getInt("id"),
userJson.getString("phone"),
userJson.getString("fullname")
);
//storing the user in shared preferences
SharedPrefManager.getInstance(getApplicationContext()).userLogin(user);
//starting the profile activity
finish();
startActivity(new Intent(getApplicationContext(), ProfileActivity.class));
} else {
Toast.makeText(getApplicationContext(), obj.getString("message"), Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_SHORT).show();
}
}) {
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("phone", phone);
params.put("password", password);
return params;
}
};
VolleySingleton.getInstance(this).addToRequestQueue(stringRequest);
}
/**
* This method to EXIT COMPLETELY application!
*/
@Override
public void onBackPressed() {
new AlertDialog.Builder(this).setIcon(null).setTitle("Exit")
.setMessage("Sure to exit?")
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
finish();
}
}).setNegativeButton("No", null).show();
}
}
和logcat：
09-28 04:42:19.391 15056-15056/com.agazslees.helpmehere E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
09-28 04:42:25.213 15056-15056/com.agazslees.helpmehere E/ActivityThread: Activity com.agazslees.helpmehere.SplashFullScreen has leaked IntentReceiver [email protected]f8 that was originally registered here. Are you missing a call to unregisterReceiver()?
android.app.IntentReceiverLeaked: Activity com.agazslees.helpmehere.SplashFullScreen has leaked IntentReceiver [email protected]f8 that was originally registered here. Are you missing a call to unregisterReceiver()?
at android.app.LoadedApk$ReceiverDispatcher.<init>(LoadedApk.java)
at android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java)
at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java)
at android.app.ContextImpl.registerReceiver(ContextImpl.java)
at android.app.ContextImpl.registerReceiver(ContextImpl.java)
at android.content.ContextWrapper.registerReceiver(ContextWrapper.java)
at com.kqstone.immersedstatusbar.injector.ActivityInjector.hookAfterPerformResume(ActivityInjector.java)
at com.kqstone.immersedstatusbar.hook.ActivityHook.performResumeAfter(ActivityHook.java)
at android.app.Activity.performResume(Activity.java)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java)
at android.app.ActivityThread.access$800(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java)
at android.os.Handler.dispatchMessage(Handler.java)
at android.os.Looper.loop(Looper.java)
at android.app.ActivityThread.main(ActivityThread.java)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:835)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:651)
at dalvik.system.NativeStart.main(Native Method)
有人可以檢查這個。什麼問題？
你可以嘗試添加一個標誌的意圖。 Intent intent = new Intent（LoginActivity.this，ProfileActivity.class）; intent.setFlags（Intent.FLAG_ACTIVITY_CLEAR_TOP）; startActivity（intent）; finish（）; –
好吧，先生..我已經做到了這一點，但仍然一樣..只是吐司消息顯示.. – agazslee
嘗試記錄一個消息，只是在startActivity之後，以確保執行代碼行。也看看是否有任何例外的LogCat –