小贝子编程

创建apk后的Android Studio问题



所以我运行了这个项目，并将其上传到GitHub(正确地(，但很长一段时间后，它没有按照应有的方式工作，也没有更改任何内容。在此期间，我只尝试创建它的apk，所以我想这就是问题的原因。

所以代码是这样的：

package com.example.neverhaveiever;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.ColorFilter;
import android.graphics.ColorMatrixColorFilter;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;
import android.content.res.Configuration;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import android.graphics.Color;
import android.graphics.ColorMatrix;
import android.content.res.*;
import android.content.Context;
import android.graphics.drawable.Drawable;
public class MainActivity extends AppCompatActivity {
private int noCards = 0;
private String[] languages;
ImageButton changeLang = null;
ImageButton buttonDirty;
ImageButton buttonOthers;
ImageButton buttonGross;
ImageButton buttonEmbarrased;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);


requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
loadLocale();
setContentView(R.layout.activity_main);
changeLang = findViewById(R.id.changeLang);
String locale = getSharedPreferences("Settings",MODE_PRIVATE).getString("My Lang","en");
updateButtonBack(locale);
changeLang.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showChangeLanguageDialog(changeLang);
}
});
languages = getResources().getStringArray(R.array.languages);

buttonDirty = findViewById(R.id.buttonDirty);
buttonGross = findViewById(R.id.buttonGross);
buttonEmbarrased = findViewById(R.id.buttonEmbarrased);
buttonOthers = findViewById(R.id.buttonOthers);
final Button startGame = findViewById(R.id.startGame);
final String embArray[] = getResources().getStringArray(R.array.embarassing);
final String dirtyArray[] = getResources().getStringArray(R.array.dirty);
final String othersArray[] = getResources().getStringArray(R.array.others);
final String grossArray[] = getResources().getStringArray(R.array.gross);
final TextView grossText = findViewById(R.id.grossText);
final TextView embText = findViewById(R.id.embText);
final TextView othersText = findViewById(R.id.othersText);
final TextView dirtyText = findViewById(R.id.dirtyText);
noCards = embArray.length + dirtyArray.length + othersArray.length + grossArray.length;
final TextView cards = findViewById(R.id.cards);
cards.setText(getResources().getString(R.string.number_of_cards)+": "+noCards);


buttonDirty.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(buttonDirty.isSelected()){
buttonDirty.setBackgroundResource(R.drawable.dirty1);
buttonDirty.setSelected(false);
updateCards(cards,dirtyArray,true);
dirtyText.setTextColor(getResources().getColor(R.color.dirtyColor));
}
else{
buttonDirty.setBackgroundResource(R.drawable.dirty2);
buttonDirty.setSelected(true);
updateCards(cards,dirtyArray,false);
dirtyText.setTextColor(getResources().getColor(R.color.grey));
}
}
});
buttonGross.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(buttonGross.isSelected()){
buttonGross.setBackgroundResource(R.drawable.gross1);
buttonGross.setSelected(false);
updateCards(cards,grossArray,true);
grossText.setTextColor(getResources().getColor(R.color.grossColor));
}
else{
buttonGross.setBackgroundResource(R.drawable.gross2);
buttonGross.setSelected(true);
updateCards(cards,grossArray,false);
grossText.setTextColor(getResources().getColor(R.color.grey));
}
}
});
buttonEmbarrased.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(buttonEmbarrased.isSelected()){
buttonEmbarrased.setBackgroundResource(R.drawable.embarrased1);
buttonEmbarrased.setSelected(false);
updateCards(cards,embArray,true);
embText.setTextColor(getResources().getColor(R.color.embColor));
}
else{
buttonEmbarrased.setBackgroundResource(R.drawable.embarrased2);
buttonEmbarrased.setSelected(true);
updateCards(cards,embArray,false);
embText.setTextColor(getResources().getColor(R.color.grey));
}
}
});
buttonOthers.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(buttonOthers.isSelected()){
buttonOthers.setBackgroundResource(R.drawable.others1);
buttonOthers.setSelected(false);
updateCards(cards,othersArray,true);
othersText.setTextColor(getResources().getColor(R.color.othersColor));
}
else{
buttonOthers.setBackgroundResource(R.drawable.others2);
buttonOthers.setSelected(true);
updateCards(cards,othersArray,false);
othersText.setTextColor(getResources().getColor(R.color.grey));
}
}
});
startGame.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(noCards == 0){
Toast.makeText(getApplicationContext(),"Select a category",Toast.LENGTH_LONG).show();
}else{
HashSet<String> set = new HashSet<>();
if(!buttonDirty.isSelected()){
set.addAll(Arrays.asList(dirtyArray));
}
if(!buttonEmbarrased.isSelected()){
set.addAll(Arrays.asList(embArray));
}
if(!buttonGross.isSelected()){
set.addAll(Arrays.asList(grossArray));
}
if(!buttonOthers.isSelected()){
set.addAll(Arrays.asList(othersArray));
}
ArrayList<String> mainList = new ArrayList<String>();
mainList.addAll(set);
java.util.Collections.shuffle(mainList);
//System.out.println(mainList);
openActivity2(mainList,embArray,grossArray,dirtyArray,othersArray);
}
}
});

}
void updateCards(TextView textView,String[] arr, boolean add){
if(add){
noCards = noCards + arr.length;
}else{
noCards = noCards - arr.length;
}
textView.setText(getResources().getString(R.string.number_of_cards)+": "+noCards);
}
public void openActivity2(ArrayList mainlist,String[] embArray,String[] grossArray,String[] dirtyArray,String[] othersArray){
Intent intent = new Intent(this,Main2Activity.class);
intent.putStringArrayListExtra("cards", mainlist);
List<String> e = new ArrayList<String>(Arrays.asList(embArray));
List<String> g = new ArrayList<String>(Arrays.asList(grossArray));
List<String> d = new ArrayList<String>(Arrays.asList(dirtyArray));
List<String> o = new ArrayList<String>(Arrays.asList(othersArray));
intent.putStringArrayListExtra("embArray", (ArrayList<String>) e);
intent.putStringArrayListExtra("grossArray", (ArrayList<String>) g);
intent.putStringArrayListExtra("dirtyArray", (ArrayList<String>) d);
intent.putStringArrayListExtra("othersArray", (ArrayList<String>) o);
startActivity(intent);
}
/*
private void setAppLocale(String localeCode){
Resources res = getResources();
DisplayMetrics dn = res.getDisplayMetrics();
Configuration conf = res.getConfiguration();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
conf.setLocale(new Locale(localeCode.toLowerCase()));
}else{
conf.locale = new Locale(localeCode.toLowerCase());
}
res.updateConfiguration(conf,dn);
}
*/
private void setAppLocale(String language){
Locale locale = new Locale(language);
locale.setDefault(locale);
Configuration config = new Configuration();
config.locale = locale;
getBaseContext().getResources().updateConfiguration(config,getBaseContext().getResources().getDisplayMetrics());
SharedPreferences.Editor editor = getSharedPreferences("Settings",MODE_PRIVATE).edit();
editor.putString("My Lang",language);
editor.apply();
}
public void loadLocale(){
SharedPreferences prefs = getSharedPreferences("Settings", Activity.MODE_PRIVATE);
String lang = prefs.getString("My Lang","");
setAppLocale(lang);

}
private void showChangeLanguageDialog(ImageButton imgButton){
AlertDialog.Builder mBuilder = new AlertDialog.Builder(MainActivity.this);
mBuilder.setTitle(getResources().getString(R.string.choose));
mBuilder.setSingleChoiceItems(languages, -1, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if(languages[which].equals(getResources().getString(R.string.cancel))){
dialog.dismiss();
}else{
String localeName = "";
switch (which){
case 0:
localeName = "en";
break;
case 1:
localeName = "gr";
break;
}
updateButtonBack(localeName);
setAppLocale(localeName);
recreate();
dialog.dismiss();
}
}
});
AlertDialog mDialog = mBuilder.create();
mDialog.show();
}
private Drawable getDrawableImage(String name){
Resources resources = this.getResources();
final int resourceId = resources.getIdentifier(name, "drawable",
this.getPackageName());
return resources.getDrawable(resourceId);
}
private void updateButtonBack(String localeName){
changeLang.setImageDrawable(getDrawableImage(localeName));
}

}

错误是：

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.neverhaveiever, PID: 10619
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.neverhaveiever/com.example.neverhaveiever.MainActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x0
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2723)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2784)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1523)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:163)
at android.app.ActivityThread.main(ActivityThread.java:6238)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:933)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)
Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x0
at android.content.res.ResourcesImpl.getValue(ResourcesImpl.java:201)
at android.content.res.MiuiResourcesImpl.getValue(MiuiResourcesImpl.java:95)
at android.content.res.Resources.getDrawable(Resources.java:788)
at android.content.res.Resources.getDrawable(Resources.java:760)
at com.example.neverhaveiever.MainActivity.getDrawableImage(MainActivity.java:295)
at com.example.neverhaveiever.MainActivity.updateButtonBack(MainActivity.java:299)
at com.example.neverhaveiever.MainActivity.onCreate(MainActivity.java:55)
at android.app.Activity.performCreate(Activity.java:6857)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2676)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2784) 
at android.app.ActivityThread.-wrap12(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1523) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:163) 
at android.app.ActivityThread.main(ActivityThread.java:6238) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:933) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)

后来我尝试同步GitHub项目，但也没有成功请帮助

可能是这篇文章的重复。无论如何，你可以试试：

  1. 在Android Studio中导航到Build -> Clean Project
  2. 导航到File -> Invalidate Caches / Restart...

就像Alexander Antaya说的那样，试试看。

除此之外，调试器是有用的，我没有明确地看到您的代码有任何问题。

Shift+F9或运行>调试。

所以我想我发现了我的错误，与apk或GitHub无关。问题出在那段代码Q 中

String locale = getSharedPreferences("Settings",MODE_PRIVATE).getString("My Lang","en");
updateButtonBack(locale);

因为当我在智能手机上执行这个程序时，程序已经知道我手机的偏好，并且没有区域设置的默认值(它返回了一个空字符串而不是空字符串——这就是为什么getString的默认值不起作用的原因(。所以用一个简单的如果问题解决了

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