Я (думаю) я настроил свой код так, чтобы при нажатии на изображение открывалось диалоговое окно с некоторой информацией. Однако, когда я щелкаю по изображению, вместо открытия диалогового окна на экране устройства появляется надпись MY_APP has stopped
.
Я использую Android studio для этого, и я не получаю никаких ошибок компилятора, когда я build
мой проект. Однако это не работает на устройстве.
Вот мой код:
UserDataInputActivity.java
package com.example.owner.introductoryapplication;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.view.View;
public class UserDataInputActivity extends AppCompatActivity
{
String[] genderOptions = {"Male", "Female", "Other"};
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_data_input);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.select_dialog_singlechoice, genderOptions);
//Find TextView control
AutoCompleteTextView acTextView = (AutoCompleteTextView) findViewById(R.id.GenderPromptValue);
//Set the number of characters the user must type before the drop down list is shown
acTextView.setThreshold(1);
//Set the adapter
acTextView.setAdapter(adapter);
}
public void onGenericMenuClick(View v)
{
Intent intent;
if(v.getId() == R.id.pasttests)
{
intent = new Intent(this, PastDiagnosticResult.class);
}
else if (v.getId() == R.id.currenttest)
{
intent = new Intent(this, CurrentDiagnosticResultActivity.class);
}
else if (v.getId() == R.id.myinfo)
{
intent = new Intent(this, UserDataInputActivity.class);
}
else //if(v.getId() == R.id.gaitInfoButton)
{
intent = new Intent(this, GaitInformation.class);
}
startActivity(intent);
overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
}
}
GaitInformation.java
package com.example.owner.introductoryapplication;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
public class GaitInformation extends DialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the Builder class for convenient dialog construction
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(R.string.GaitInformationContent)
.setPositiveButton(R.string.acknowledge, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//GO BACK TO THE USER DATA INPUT PAGE - HOW?
}
});
// Create the AlertDialog object and return it
return builder.create();
}
}
LOGCAT CRUSH REPORT
2019-01-04 14:24:34.741 8385-8385/com.example.owner.introductoryapplication E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.owner.introductoryapplication, PID: 8385
java.lang.IllegalStateException: Could not execute method for android:onClick
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:390)
at android.view.View.performClick(View.java:6312)
at android.view.View$PerformClick.run(View.java:24802)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:169)
at android.app.ActivityThread.main(ActivityThread.java:6521)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:385)
at android.view.View.performClick(View.java:6312)
at android.view.View$PerformClick.run(View.java:24802)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:169)
at android.app.ActivityThread.main(ActivityThread.java:6521)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.owner.introductoryapplication/com.example.owner.introductoryapplication.GaitInformation}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1940)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1618)
at android.app.Activity.startActivityForResult(Activity.java:4529)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:767)
at android.app.Activity.startActivityForResult(Activity.java:4487)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:754)
at android.app.Activity.startActivity(Activity.java:4848)
at android.app.Activity.startActivity(Activity.java:4816)
at com.example.owner.introductoryapplication.UserDataInputActivity.onGenericMenuClick(UserDataInputActivity.java:52)
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:385)
at android.view.View.performClick(View.java:6312)
at android.view.View$PerformClick.run(View.java:24802)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:169)
at android.app.ActivityThread.main(ActivityThread.java:6521)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
2019-01-04 14:24:35.040 2367-2389/? E/libnav: CablComputeBacklightLevel(): UpdateType = DifferentSceneUpdate
2019-01-04 14:24:35.251 2638-2670/? E/ActivityTrigger: activityResumeTrigger: not whiteListedcom.example.owner.introductoryapplication/com.example.owner.introductoryapplication.PastDiagnosticResult/1
2019-01-04 14:24:40.474 2367-2389/? E/libnav: CablComputeBacklightLevel(): UpdateType = DifferentSceneUpdate
Я ожидаю всплывающее диалоговое окно, но вместо этого оно говорит, что мое приложение перестало работать.