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Code Issues Releases Wiki Activity

Migrate to opoc/basefragment; Fix redundant casts

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This commit is contained in:
Gregor Santner 2018-03-30 00:38:31 +02:00
parent a88dc5d13c
commit 08242760bb
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15 changed files with 176 additions and 109 deletions
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59
app/src/main/java/net/gsantner/opoc/activity/CustomFragment.java
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/*
This file is part of the dandelion*.
dandelion* is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
dandelion* is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with the dandelion*.
If not, see <http://www.gnu.org/licenses/>.
*/
package net.gsantner.opoc.activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
/**
* Customized abstract Fragment class with some useful methods
* Created by vanitas on 21.09.16.
*/
public abstract class CustomFragment extends Fragment {
public static final String TAG = "net.gsantner.opoc.activity.CustomFragment";
/**
* We have an optionsMenu
*
* @param savedInstanceState state
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
/**
* Return the tag used to identify the Fragment.
*
* @return tag
*/
public abstract String getFragmentTag();
/**
* Return true if the fragment reacted to a back button press, false else.
* In case the fragment returned false, the parent activity should handle the backPress.
*
* @return did we react to the back press?
*/
public abstract boolean onBackPressed();
}

129
app/src/main/java/net/gsantner/opoc/activity/GsFragmentBase.java Normal file
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/*#######################################################
*
* Maintained by Gregor Santner, 2017-
* https://gsantner.net/
*
* License: Apache 2.0
* https://github.com/gsantner/opoc/#licensing
* https://www.apache.org/licenses/LICENSE-2.0
*
#########################################################*/
package net.gsantner.opoc.activity;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.LayoutRes;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import net.gsantner.opoc.util.ContextUtils;
import butterknife.ButterKnife;
/**
* A common base fragment to extend from
*/
public abstract class GsFragmentBase extends Fragment {
private boolean _fragmentFirstTimeVisible = true;
private final Object _fragmentFirstTimeVisibleSync = new Object();
protected ContextUtils _cu;
protected Bundle _savedInstanceState = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
/**
* Inflate the fragments layout. Don't override this method, just supply the needed
* {@link LayoutRes} via abstract method {@link #getLayoutResId()}, super does the rest
*/
@Deprecated
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
_cu = new ContextUtils(inflater.getContext());
_cu.setAppLanguage(getAppLanguage());
_savedInstanceState = savedInstanceState;
View view = inflater.inflate(getLayoutResId(), container, false);
ButterKnife.bind(this, view);
return view;
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
view.postDelayed(() -> {
synchronized (_fragmentFirstTimeVisibleSync) {
if (getUserVisibleHint() && isVisible() && _fragmentFirstTimeVisible) {
_fragmentFirstTimeVisible = false;
onFragmentFirstTimeVisible();
}
}
}, 1);
}
/**
* Get a tag from the fragment, allows faster distinction
*
* @return This fragments tag
*/
public abstract String getFragmentTag();
/**
* Get the layout to be inflated in the fragment
*
* @return Layout resource id
*/
@LayoutRes
protected abstract int getLayoutResId();
/**
* Event to be called when the back button was pressed
* True should be returned when this was handled by the fragment
* and no further handling in the view hierarchy is needed
*
* @return True if back handled by fragment
*/
public boolean onBackPressed() {
return false;
}
/**
* Set the language to be used in this fragment
* Defaults to resolve the language from sharedpreferences: pref_key__language
*
* @return Empty string for system language, or an android locale code
*/
public String getAppLanguage() {
if (getContext() != null) {
return getContext().getSharedPreferences("app", Context.MODE_PRIVATE)
.getString("pref_key__language", "");
}
return "";
}
/**
* This will be called when this fragment gets the first time visible
*/
public void onFragmentFirstTimeVisible() {
}
@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
synchronized (_fragmentFirstTimeVisibleSync) {
if (isVisibleToUser && _fragmentFirstTimeVisible) {
_fragmentFirstTimeVisible = false;
onFragmentFirstTimeVisible();
}
}
}
}