LeakCanary 在我的 Android 应用程序中报告了内存泄漏。我已经谷歌搜索和研究了几天，找不到任何解决方案。泄露的对象是一个名为“MakeFire”的 Activity 实例。它似乎与android.view.WindowManagerGlobal有关。谁能指出泄漏是如何发生的，以及如何解决？
这是 MakeFire Activity 的源代码
public class MakeFire extends SharedMethod implements StatusBarFragment.OnFragmentInteractionListener,
DayTimeFragment.OnFragmentInteractionListener, BackButtonFragment.OnFragmentInteractionListener {
private Button firePlough;
private Button bowDrill;
private TextView makeFireWithBowDrillTime;
private TextView requirementTextview;
private Button performButton;
private String selectedButton;
private boolean firePloughOn;
private boolean bowDrillOn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_make_fire);
firePlough = (Button) findViewById(R.id.firePlough);
bowDrill = (Button) findViewById(R.id.bowDrill);
makeFireWithBowDrillTime = (TextView) findViewById(R.id.makeFireWithBowDrillTime);
requirementTextview = (TextView) findViewById(R.id.requirementTextview);
performButton = (Button) findViewById(R.id.performButton);
}
@Override
public void onDestroy() {
super.onDestroy();
RefWatcher refWatcher = MyApplication.getRefWatcher(this);
refWatcher.watch(this);
}
@Override
public void onBackPressed() {
Bundle extra = new Bundle();
extra.putString("classToGoBack", getClass().getName());
Intent intent = new Intent(this, InGameMenu.class);
intent.putExtras(extra);
startActivity(intent);
}
@Override
public void onResume() {
super.onResume();
GameData.useImmersiveModeSticky(this);
}
@Override
public void onStop() {
super.onStop();
try {
//save on the latest save file
FileOutputStream latestSavedGame = openFileOutput("latestSavedGame", Context.MODE_PRIVATE);
ObjectOutputStream latestGameData = new ObjectOutputStream(latestSavedGame);
latestGameData.writeObject(GameData.GDI);
latestSavedGame.close();
} catch (Exception e) {
//TODO - delete it before uploading the app
GameData.GDI.showPlainMsg("sharedMethodProblem!", this);
final StringWriter sw = new StringWriter();
final PrintWriter pw = new PrintWriter(sw, true);
e.printStackTrace(pw);
GameData.GDI.showPlainMsg(sw.getBuffer().toString(), this);
}
boolean savedGameIsFine;
try {
FileInputStream latestSavedGame = openFileInput("latestSavedGame");
ObjectInputStream latestGameData = new ObjectInputStream(latestSavedGame);
savedGameIsFine = (latestGameData.readObject() != null);
latestSavedGame.close();
} catch (Exception e) {
savedGameIsFine = false;
}
if (savedGameIsFine) {
try {
//save on the latest save file
FileOutputStream latestSavedGame = openFileOutput("latestSavedGameBackup", Context.MODE_PRIVATE);
ObjectOutputStream latestGameData = new ObjectOutputStream(latestSavedGame);
latestGameData.writeObject(GameData.GDI);
latestSavedGame.close();
} catch (Exception e) {
}
} else {
}
}
@Override
protected void onStart() {
super.onStart();
updateAllViews();
requirementTextview.setVisibility(View.INVISIBLE);
performButton.setVisibility(View.INVISIBLE);
}
//method for updating all amendable views in the page
private void updateAllViews() {
//visibility of fire plough button
if (GameData.GDI.anyThisInventoryAvailable(GameData.FIRE_PLOUGH) &&
GameData.GDI.anyThisInventoryAvailable(GameData.TINDER) &&
(!GameData.GDI.stormOn || GameData.GDI.currentLocation.campfireWindBlock)
) {
firePlough.setCompoundDrawablesWithIntrinsicBounds(0,R.drawable.ic_fireplow_3_f,0,0);
firePlough.setTextColor(ContextCompat.getColor(this, R.color.buttonOnColour));
firePloughOn = true;
}
else {
firePlough.setCompoundDrawablesWithIntrinsicBounds(0,R.drawable.ic_fireplow_3_f_o,0,0);
firePlough.setTextColor(ContextCompat.getColor(this, R.color.buttonOffColour));
firePloughOn = false;
}
//visibility of bow drill button
if (GameData.GDI.bowDrillUnlocked) {
bowDrill.setVisibility(View.VISIBLE);
makeFireWithBowDrillTime.setVisibility(View.VISIBLE);
if (GameData.GDI.anyThisInventoryAvailable(GameData.BOW_DRILL) &&
GameData.GDI.anyThisInventoryAvailable(GameData.TINDER) &&
(!GameData.GDI.stormOn || GameData.GDI.currentLocation.campfireWindBlock)
) {
bowDrill.setCompoundDrawablesWithIntrinsicBounds(0,R.drawable.ic_bow_drill_3_f,0,0);
bowDrill.setTextColor(ContextCompat.getColor(this, R.color.buttonOnColour));
bowDrillOn = true;
}
else {
bowDrill.setCompoundDrawablesWithIntrinsicBounds(0,R.drawable.ic_bow_drill_3_f_o,0,0);
bowDrill.setTextColor(ContextCompat.getColor(this, R.color.buttonOffColour));
bowDrillOn = false;
}
}
updateStatusBarFragment();
updateDayTimeFragment();
}
public void makeFireWithFirePlough(View view) {
if (firePloughOn) {
performButton.setVisibility(View.VISIBLE);
}
else {
performButton.setVisibility(View.INVISIBLE);
}
requirementTextview.setVisibility(View.VISIBLE);
requirementTextview.setText(R.string.makeFireWithFirePloughRqm);
selectedButton = "fire plough";
}
public void makeFireWithBowDrill(View view) {
if (bowDrillOn) {
performButton.setVisibility(View.VISIBLE);
}
else {
performButton.setVisibility(View.INVISIBLE);
}
requirementTextview.setVisibility(View.VISIBLE);
requirementTextview.setText(R.string.makeFireWithBowDrillRqm);
selectedButton = "bow drill";
}
public void perform(View view){
if (!GameData.GDI.stormOn || GameData.GDI.currentLocation.campfireWindBlock){
switch (selectedButton){
case "fire plough":
String msgToShow = "";
String extraInfo = "";
String[] timePassMsg;
Bundle extras = new Bundle();
//timepass method must run before the fireToLast method
timePassMsg = GameData.GDI.timePass(30, 1, 1, 1, this);
if (GameData.GDI.anyThisInventoryInBackpack(GameData.TINDER)) {
GameData.GDI.setInventoryAmount(GameData.TINDER, true, -1);
}
else {
GameData.GDI.setInventoryAmount(GameData.TINDER, false, -1);
}
extras.putString("toolUsed", getString(R.string.usedTinderMsg));
//update tool durability
GameData.GDI.firePloughDurability = GameData.GDI.updateInventoryDurability(GameData.FIRE_PLOUGH, GameData.GDI.firePloughDurability, GameData.FIRE_PLOUGH_MAX_DURABILITY);
//Because in GameCamp.updateInventoryDurability, if the tool broke, it will reset the durability to its maxDurability;
//so if these 2 numbers equal, the tool just broke
if (GameData.GDI.firePloughDurability == GameData.FIRE_PLOUGH_MAX_DURABILITY) {
extraInfo += getString(R.string.firePloughBreakMsg) + "\n\n";
}
GameData.GDI.bowDrillUnlockCounter += 1;
if (Math.random() < 0.75) {
GameData.GDI.currentLocation.fireOn = true;
GameData.GDI.currentLocation.fireToLast += 10;
msgToShow += getString(R.string.success) + "\n";
extras.putString("className", "Fire");
}
else {
msgToShow += getString(R.string.fail) + "\n";
if (!GameData.GDI.bowDrillUnlocked) {
if (GameData.GDI.bowDrillUnlockCounter >= 3) {
extraInfo += getString(R.string.bowDrillUnlockMsg) + "\n\n";
GameData.GDI.bowDrillUnlocked = true;
GameData.GDI.setCraftingAlertIcon(3);
}
}
extras.putString("className", "Make Fire");
}
Intent intent = new Intent(this, LoadingPage.class);
extras.putString("actionName", getString(R.string.makingFireWithFirePlough));
extras.putInt("timeNeeded", 30);
extras.putString("msgToShow", msgToShow);
extras.putString("extraInfo", extraInfo);
extras.putString("timePassMsg", timePassMsg[0]);
extras.putString("deathReason", timePassMsg[1]);
intent.putExtras(extras);
startActivity(intent);
break;
case "bow drill":
String msgToShow1 = "";
String extraInfo1 = "";
String[] timePassMsg1;
Bundle extras1 = new Bundle();
//timepass method must run before the fireToLast method
timePassMsg1 = GameData.GDI.timePass(10, 1, 1, 1, this);
if (GameData.GDI.anyThisInventoryInBackpack(GameData.TINDER)) {
GameData.GDI.setInventoryAmount(GameData.TINDER, true, -1);
}
else {
GameData.GDI.setInventoryAmount(GameData.TINDER, false, -1);
}
extras1.putString("toolUsed", getString(R.string.usedTinderMsg));
//update tool durability
GameData.GDI.bowDrillDurability = GameData.GDI.updateInventoryDurability(GameData.BOW_DRILL, GameData.GDI.bowDrillDurability, GameData.BOW_DRILL_MAX_DURABILITY);
//Because in GameCamp.updateInventoryDurability, if the tool broke, it will reset the durability to its maxDurability;
//so if these 2 numbers equal, the tool just broke
if (GameData.GDI.bowDrillDurability == GameData.BOW_DRILL_MAX_DURABILITY) {
extraInfo1 += getString(R.string.bowDrillBreakMsg) + "\n\n";
}
if (Math.random() < 0.95) {
GameData.GDI.currentLocation.fireOn = true;
GameData.GDI.currentLocation.fireToLast += 10;
msgToShow1 += getString(R.string.success) + "\n";
extras1.putString("className", "Fire");
}
else {
msgToShow1 += getString(R.string.fail) + "\n";
extras1.putString("className", "Make Fire");
}
Intent intent1 = new Intent(this, LoadingPage.class);
extras1.putString("actionName", getString(R.string.makingFireWithBowDrill));
extras1.putString("className", "Fire");
extras1.putInt("timeNeeded", 10);
extras1.putString("msgToShow", msgToShow1);
extras1.putString("extraInfo", extraInfo1);
extras1.putString("timePassMsg", timePassMsg1[0]);
extras1.putString("deathReason", timePassMsg1[1]);
intent1.putExtras(extras1);
startActivity(intent1);
break;
}
}
else {
GameData.GDI.showPlainMsg(getString(R.string.cannotMakeFireInStormMsg), this);
}
}
//fragment method
public void updateStatusBarFragment() {
StatusBarFragment statusBarFragment = (StatusBarFragment)getSupportFragmentManager().findFragmentById(R.id.statusBarFragment);
statusBarFragment.updateStatusBar();
}
public void updateDayTimeFragment() {
DayTimeFragment dayTimeFragment = (DayTimeFragment)getSupportFragmentManager().findFragmentById(R.id.dayTimeFragment);
dayTimeFragment.updateDayTimeView();
}
public void backButton(View view){
Intent intent = new Intent(this, Fire.class);
startActivity(intent);
}
}