我有一个具有设备列表的activityA，当我点击此列表中的某个项目时，会调用另一个活动（activityB）。
activityB是一个tabActivity，并使用viewPager来显示不同的片段。该活动有一个MenuItem来检查设备。单击MenuItem时，会出现一个对话框。但我创建了另一个类来显示Dialog，因为我希望这个Dialog显示在不同的片段中。
问题是，对话框出现但活动泄漏，并完成。
怎么办？
ActivityB：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tab_activity);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
equipment = (Equipment) getIntent().getExtras().getSerializable("equipment");
viewPager = (ViewPager) findViewById(R.id.viewpager);
viewPager.addOnPageChangeListener(this);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
tag = "FragA";
}
private void setupViewPager(ViewPager viewPager) {
Bundle bundle = new Bundle();
bundle.putSerializable("equipment", equipment);
FragmentA fragmentA = new FragmentA();
fragmentA.setArguments(bundle);
FragmentB fragmentB = new FragmentB();
fragmentB.setArguments(bundle);
FragmentC fragmentC = new FragmentC();
fragmentC.setArguments(bundle);
adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(fragmentA, "FragA");
adapter.addFragment(fragmentB, "FragB");
adapter.addFragment(fragmentC, "FragC");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
index = viewPager.getCurrentItem();
if (index == 0) {
tag = "FragA";
} else if (index == 1) {
tag = "FragB";
} else {
tag = "FragC";
}
invalidateOptionsMenu();
}
@Override
public void onPageScrollStateChanged(int state) {
}
public void onBackPressed() {
finish();
}
@Override
public void finishCheckEquipment(Boolean success) {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
}
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
switch (index) {
case 0:
FragmentA fragmentA = new FragmentA() adapter.getItem(index);
if (fragmentA != null) {
fragmentA.refreshFragmentA(newText);
return false;
}
case 1:
FragmentB fragmentB = new FragmentB() adapter.getItem(index);
if (fragmentB != null) {
fragmentB.refreshFragmentB(newText);
return false;
}
}
return false;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.alarm, menu);
mCheckedItem = menu.findItem(R.id.action_check_equipment_final);
mBackupSettings = menu.findItem(R.id.enable_backup_final);
MenuItem searchItem = menu.findItem(R.id.menu_item_search_alarm);
mSearchItem = searchItem;
mSearchView = (SearchView) MenuItemCompat.getActionView(mSearchItem);
mSearchView.setOnQueryTextListener(this);
FragmentC fragmentC = (FragmentC) adapter.getItem(2);
if (fragmentC != null && fragmentC.isVisible() && index == 2) {
String backup = equipmentInfoFragment.verifyBackup();
switch (backup) {
case "enable":
mBackupSettings.setTitle(getResources().getString(R.string.disable_backup));
break;
case "disable":
mBackupSettings.setTitle(getResources().getString(R.string.enable_backup));
break;
case "null":
break;
}
}
switch (index) {
case 0:
mSearchItem.setVisible(true);
mCheckedItem.setVisible(true);
mBackupSettings.setVisible(false);
return true;
case 1:
mSearchItem.setVisible(true);
mCheckedItem.setVisible(true);
mBackupSettings.setVisible(false);
return true;
case 2:
mSearchItem.setVisible(false);
mCheckedItem.setVisible(true);
mBackupSettings.setVisible(true);
return true;
default:
return super.onCreateOptionsMenu(menu);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_check_equipment_final:
CheckEquipment checkEquipment = new CheckEquipment(this);
checkEquipment.StarCheckEquipment(TabActivity.this, equipment);
case android.R.id.home:
finish();
return true;
case R.id.enable_backup_final:
EquipmentInfoFragment equipmentInfoFragment = (EquipmentInfoFragment) adapter.getItem(2);
equipmentInfoFragment.startEnableBackup();
}
return super.onOptionsItemSelected(item);
}
}
具有对话框的类：
public class CheckEquipment extends FragmentActivity{
private OnCheckEquipmentListener listener;
private Equipment mEquipment;
private Context mContext;
private Boolean success;
private SharedPreferences sessionUserSettings = null;
Bundle bundle = new Bundle();
public CheckEquipment (OnCheckEquipmentListener listener) {
this.listener = listener;
}
public void StarCheckEquipment(Context context, Equipment equipment) {
this.mEquipment = equipment;
this.mContext = context;
EquipmentDialogInner equipmentFragment = new EquipmentDialogInner(mContext);
equipmentFragment.setCancelable(false);
equipmentFragment.show();
}
private String generateAuthHeaderValue(String login, String password) {
String authorizationString = "Basic "
+ Base64.encodeToString((login + ":"
+ password).getBytes(), Base64.DEFAULT);
authorizationString = authorizationString.replaceAll("\\n", "");
return authorizationString;
}
private class EquipmentDialogInner extends Dialog implements View.OnClickListener {
private Button cancel, send;
public EquipmentDialogInner(Context context) {
super(context);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.dialog_alert_message);
cancel = (Button) findViewById(R.id.cancel_button);
send = (Button) findViewById(R.id.send_button);
cancel.setOnClickListener(this);
send.setOnClickListener(this);
}
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.cancel_button:
this.dismiss();
break;
case R.id.send_button:
if (!Utils.isNetworkAvailable(mContext)){
ActivityAction.showButtonToast(getOwnerActivity(), R.string.no_internet);
return;
}
try {
new TaskSendEquipmentDetail().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} catch (Exception e) {
e.printStackTrace();
}
this.dismiss();
break;
default:
}
}
}
private class TaskSendEquipmentDetail extends AsyncTask<Void, Void, Boolean> {
List<Equipment> mEquipmentSelected = new ArrayList<>();
@Override
protected Boolean doInBackground(Void... params) {
mEquipmentSelected.add(mEquipment);
success = false;
sessionUserSettings = mContext.getSharedPreferences(Constants.SHARED_PREFERENCE_USER, 0);
String url = Constants.PROVIDER_DOMAIN_URL + Constants.REQUEST_EQUIPMENT;
String login = sessionUserSettings.getString(Constants.SHARED_PREFERENCE_USER_LOGIN, "");
String password = sessionUserSettings.getString(Constants.SHARED_PREFERENCE_USER_PWD, "");
try{
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
final GsonBuilder builder = new GsonBuilder();
builder.excludeFieldsWithoutExposeAnnotation();
final Gson gson = builder.create();
String json = gson.toJson(mEquipmentSelected);
StringEntity enity = new StringEntity(json);
httpPost.setEntity(enity);
httpPost.setHeader("Content-type", "application/json");
httpPost.addHeader("Authorization", generateAuthHeaderValue(login, password));
HttpResponse httpResponse = httpClient.execute(httpPost);
int responseCode = httpResponse.getStatusLine().getStatusCode();
switch (responseCode) {
case 200:
success = true;
break;
default:
System.out.print("erro");
}
}catch (Exception ignored){
System.out.print(ignored);
}
return success;
}
@Override
protected void onPostExecute(Boolean aBoolean) {
if (success) {
if (listener != null){
listener.finishCheckEquipment(success);
}
} else {
Toast toast = Toast.makeText(mContext, "Não Foi Possível", Toast.LENGTH_SHORT);
toast.show();
}
}
}
public interface OnCheckEquipmentListener {
void finishCheckEquipment(Boolean success);
}
}
日志：
03-11 10:37:16.809 29718-29718/com.company.provider E/WindowManager: android.view.WindowLeaked: Activity com.company.provider.controllers.equipmentDetail.TabActivity has leaked window com.android.internal.policy.PhoneWindow$DecorView{7c1f044 V.E...... R.....I. 0,0-482,219} that was originally added here
at android.view.ViewRootImpl.<init>(ViewRootImpl.java:368)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:299)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:86)
at android.app.Dialog.show(Dialog.java:319)
at com.company.provider.controllers.equipmentDetail.CheckEquipment.StarCheckEquipment(CheckEquipment.java:52)
at com.company.provider.controllers.equipmentDetail.TabActivity.onOptionsItemSelected(TabActivity.java:224)
答案 0 :(得分：0)
我认为你应该从EquipmentDialogInner中取出CheckEquipment并将其作为一个类本身（新文件等），而不是将其作为CheckEquipment中的内部类。
然后，您可以更改onOptionsItemSelected，如下所示：
switch (item.getItemId()) {
case R.id.action_check_equipment_final:
EquipmentDialogInner dialog = new EquipmentDialogInner(this);
dialog.setCancelable(false);
dialog.show();
case android.R.id.home:
finish();
return true;
case R.id.enable_backup_final:
EquipmentInfoFragment equipmentInfoFragment = (EquipmentInfoFragment) adapter.getItem(2);
equipmentInfoFragment.startEnableBackup();
}