应用程序突然重启
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我用四个活动制作了简单的图片匹配游戏，完成后可以再次玩。问题是大多数情况下游戏会停止并返回到上一个
错误：
2020-01-29 15：05：51.001 11438-11438 /？ E / androidRuntime：致命例外：主要流程：com.mk_kadish.playandlearn，PID：11438android.view.WindowManager $ BadTokenException：无法添加窗口-令牌android.os.BinderProxy@4f4586f无效；您的活动正在进行吗？在android.view.ViewRootImpl.setView（ViewRootImpl.java:798）在android.view.WindowManagerGlobal.addView（WindowManagerGlobal.java:356）在android.view.WindowManagerImpl.addView（WindowManagerImpl.java:93）在android.app.Dialog.show（Dialog.java:329）在androidx.appcompat.app.AlertDialog $ Builder.show（AlertDialog.java:1007）在com.mk_kadish.playandlearn.game1.game1_HomeActivity $ 4.onFinish（game1_HomeActivity.java:284）在android.os.CountDownTimer $ 1.handleMessage（CountDownTimer.java:127）在android.os.Handler.dispatchMessage（Handler.java:106）在android.os.Looper.loop（Looper.java:193）在android.app.ActivityThread.main（ActivityThread.java:6669）在java.lang.reflect.Method.invoke（本机方法）在com.android.internal.os.RuntimeInit $ MethodAndArgsCaller.run（RuntimeInit.java:493）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:858）
其中一个文件的代码和另一个文件的代码重复相同：
public class game1_HomeActivity extends AppCompatActivity {
private AllSharedPrefernces allSharedPrefernces;
View view1;
int position1;
private int height;
private int width;
private static final long START_TIME_IN_MILLIS = 120000;
private TextView mTextViewCountDown;
private TextView textViewPairs;
private Button mButtonStartPause;
private Button mButtonReset;
private CountDownTimer mCountDownTimer;
private Long pointsCounter;
private boolean mTimerRunning;
private long mTimeLeftInMillis = START_TIME_IN_MILLIS;
ArrayList<Game1KeyValue> allpairs;
boolean isMatch=false;
ImageAdapter imageAdapter2;
ImageView curView = null;
private int countPair = 0;
TextView tv6;
TextView myPoints;
TextView temPoints;
public int[] drawable;
int[] pos;
int maxnum=2;
int currentPos = -1;
MediaPlayer mediaPlayerno_ar;
MediaPlayer mediaPlayer_no;
MediaPlayer mediaPlayeryes;
MediaPlayer mediaPlayeryes_ar;
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
allSharedPrefernces = new AllSharedPrefernces(this);
setContentView(R.layout.activity_game1__home);
drawable=new int[]
{
R.drawable.yes_ar,
R.drawable.no_ar,
R.drawable.no,
R.drawable.yes,
};
pos=TawleedRandom.walledArray(4);
allpairs = new ArrayList<>();
allpairs.add(new Game1KeyValue(R.drawable.yes,R.drawable.yes_ar));
allpairs.add(new Game1KeyValue(R.drawable.no ,R.drawable.no_ar));
temPoints=findViewById(R.id.l1g1_tempoints);
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
height = displayMetrics.heightPixels;
width = displayMetrics.widthPixels;
tv6 = findViewById(R.id.g2_tv4_pairsCount);
myPoints=findViewById(R.id.g2_tv6_Ponits);
pointsCounter=getPoints();
myPoints.setText(pointsCounter+"");
pointsCounter=0L;
tv6.setText(""+drawable.length /2);
mTextViewCountDown = findViewById(R.id.g1_tv2_text_view_countdown);
textViewPairs=findViewById(R.id.g1_tv2_pairsCount);
mButtonStartPause = findViewById(R.id.button_start_pause);
mButtonReset = findViewById(R.id.button_reset);
mButtonStartPause.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mTimerRunning) {
pauseTimer();
} else {
startTimer();
}
}
});
mButtonReset.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
playAgain(v);
}
});
updateCountDownText();
final ImageAdapter imageAdapter = new ImageAdapter(this,height,width,drawable.length);
GridView gridView = findViewById(R.id.gridView);
gridView.setNumColumns(2);
gridView.setEnabled(false);
RelativeLayout.LayoutParams parameter = (RelativeLayout.LayoutParams) gridView.getLayoutParams();
parameter.setMargins(width * 2 /7, parameter.topMargin, parameter.rightMargin, parameter.bottomMargin); // left, top, right, bottom
gridView.setLayoutParams(parameter);
gridView.setAdapter(imageAdapter);
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (currentPos < 0) {
currentPos = position;
curView = (ImageView) view;
runSuitableMusika(drawable[pos[position]]);
((ImageView) view).setImageResource(drawable[pos[position]]);
view1 = view;
position1 = position;
} else
{
if (currentPos == position)
{
((ImageView) view).setImageResource(R.drawable.questionbg);
}
else
{
runSuitableMusika(drawable[pos[position]]);
for (Game1KeyValue d : allpairs) {
if ((d.key == drawable[pos[currentPos]]) || (d.value == drawable[pos[currentPos]])) {
if (d.key == drawable[pos[currentPos]]) {
if (d.value == drawable[pos[position]]) {
isMatch = true;
d.setUsed(1);
}
break;
} else {
if (d.value == drawable[pos[currentPos]]) {
if (d.key == drawable[pos[position]]) {
isMatch = true;
}
break;
}
}
}
}
((ImageView) view).setImageResource(drawable[pos[position]]);
view1 = view;
if (!isMatch) {
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
curView.setImageResource(R.drawable.questionbg);
((ImageView) view1).setImageResource(R.drawable.questionbg);
}
}, 600);
}
else if (isMatch) {
isMatch = false;
((ImageView) view).setImageResource(drawable[pos[position]]);
runSuitableMusika(drawable[pos[position]]);
countPair++;
pointsCounter=pointsCounter+1L;
temPoints.setText(pointsCounter+"");
textViewPairs.setText(countPair + "");
if(countPair != maxnum)
{
int curNum=drawable.length;
int[] newArray = new int[curNum-2];
int[] pos1=TawleedRandom.walledArray(curNum-2);
int k=0;
for(int i=0;i<curNum;i++)
{
if(i==position || i==currentPos)
{
}
else
{
newArray[pos1[k]] = drawable[pos[i]];
k++;
}
}
drawable=newArray;
pos=pos1;
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
removeFromGrid();
}
}, 1000);
}
else
if (countPair == maxnum) {
try
{
Thread.sleep(500);
}
catch (InterruptedException e) {
e.printStackTrace();
}
passToNext(view);
}
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
currentPos = -1;
}
}
});
}
private void removeFromGrid()
{
GridView gridView = findViewById(R.id.gridView);
gridView.setAdapter(null);
imageAdapter2=new ImageAdapter(this,height,width,drawable.length);
gridView.setNumColumns(2);
gridView.setAdapter(imageAdapter2);
currentPos = -1;
}
private void startTimer() {
mCountDownTimer = new CountDownTimer(mTimeLeftInMillis, 1000) {
@Override
public void onTick(long millisUntilFinished) {
mTimeLeftInMillis = millisUntilFinished;
updateCountDownText();
}
@Override
public void onFinish() {
GridView gridView0 = findViewById(R.id.gridView);
gridView0.setVisibility(View.INVISIBLE);
Button btn2=findViewById(R.id.button_start_pause);
btn2.setVisibility(View.INVISIBLE);
AlertDialog.Builder builder = new AlertDialog.Builder(game1_HomeActivity.this);
builder.setCancelable(true);
builder.setTitle(" انتهت اللعبة ");
builder.setMessage("حظ أوفر المرة القادمة");
builder.setNegativeButton("الخروج من اللعبة", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialogInterface, int i) {
backToFirstMethod();
}
});
builder.setPositiveButton("العب مرة أخرى", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Intent intent = getIntent();
finish();
startActivity(intent);
}
});
builder.show();
}
}.start();
mTimerRunning = true;
mButtonStartPause.setText("إيقاف مؤقت");
mButtonReset.setVisibility(View.INVISIBLE);
GridView gridView = findViewById(R.id.gridView);
gridView.setNumColumns(2);
gridView.setEnabled(true);
}
private void pauseTimer() {
mCountDownTimer.cancel();
mTimerRunning = false;
mButtonStartPause.setText("استئناف");
mButtonReset.setVisibility(View.VISIBLE);
GridView gridView = findViewById(R.id.gridView);
gridView.setNumColumns(2);
gridView.setEnabled(false);
}
private void updateCountDownText() {
int minutes = (int) (mTimeLeftInMillis / 1000) / 60;
int seconds = (int) (mTimeLeftInMillis / 1000) % 60;
String timeLeftFormatted = String.format(Locale.getDefault(), "%02d:%02d", minutes, seconds);
mTextViewCountDown.setText(timeLeftFormatted);
}
public void passToNext(View view)
{
allSharedPrefernces.writeTimer1(mTimeLeftInMillis);
allSharedPrefernces.saveDbPoints(getPoints());
allSharedPrefernces.storeTempPoints(2L);
startActivity(new Intent(this,game1_secondActivity.class));
finish();
}
public void playAgain(View view)
{
Intent intent = getIntent();
finish();
startActivity(intent);
}
public void backToFirstMethod()
{
startActivity(new Intent(this, indexActivity.class));
finish();
}
public Long getPoints()
{
SchoolDbHelper schoolDbHelper=new SchoolDbHelper(this);
SQLiteDatabase mydatabase=schoolDbHelper.getReadableDatabase();
Long c= schoolDbHelper.getCurrentPoints(11,mydatabase);
return c;
}
答案
您的例外情况表明您正在呼叫被破坏的活动，反之亦然。确保销毁该活动后没有活动或对话框被调用。有关更多信息，请检查以下链接
Bad window token, you cannot show a dialog before an Activity is created or after it's hidden
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