, dataSource: DataSource, isFirstResource: Boolean): Boolean {
37 |
38 | // profile_image_loading_progress.setVisibility(View.GONE)
39 | return false
40 | }
41 | })
42 | .into(item.qr_code_imgv)
43 |
44 | */
45 |
46 | }
47 |
48 | override fun onCreateViewHolder(parent: ViewGroup, p1: Int): ViewHolderItem {
49 | val viewHolder = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_view, null, false)
50 | viewHolder.setLayoutParams(RecyclerView.LayoutParams(RecyclerView.LayoutParams.MATCH_PARENT, RecyclerView.LayoutParams.WRAP_CONTENT))
51 | return ViewHolderItem(viewHolder)
52 | }
53 |
54 |
55 | class ViewHolderItem(itemLayoutView: View) : RecyclerView.ViewHolder(itemLayoutView) {
56 |
57 | var user_image:ImageView
58 | var user_name_text:TextView
59 | init {
60 |
61 | user_image=itemLayoutView.findViewById(R.id.user_image)
62 | user_name_text=itemLayoutView.findViewById(R.id.user_name_text)
63 | }
64 | }
65 | }
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/.idea/codeStyles/Project.xml:
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
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9 |
10 |
11 |
12 |
13 | xmlns:android
14 |
15 | ^$
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 | xmlns:.*
25 |
26 | ^$
27 |
28 |
29 | BY_NAME
30 |
31 |
32 |
33 |
34 |
35 |
36 | .*:id
37 |
38 | http://schemas.android.com/apk/res/android
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 | .*:name
48 |
49 | http://schemas.android.com/apk/res/android
50 |
51 |
52 |
53 |
54 |
55 |
56 |
57 |
58 | name
59 |
60 | ^$
61 |
62 |
63 |
64 |
65 |
66 |
67 |
68 |
69 | style
70 |
71 | ^$
72 |
73 |
74 |
75 |
76 |
77 |
78 |
79 |
80 | .*
81 |
82 | ^$
83 |
84 |
85 | BY_NAME
86 |
87 |
88 |
89 |
90 |
91 |
92 | .*
93 |
94 | http://schemas.android.com/apk/res/android
95 |
96 |
97 | ANDROID_ATTRIBUTE_ORDER
98 |
99 |
100 |
101 |
102 |
103 |
104 | .*
105 |
106 | .*
107 |
108 |
109 | BY_NAME
110 |
111 |
112 |
113 |
114 |
115 |
116 |
117 |
118 |
119 |
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/app/src/main/java/com/example/backstack_bottomnavigation/MainActivityNew.kt:
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1 | package com.example.backstack_bottomnavigation
2 |
3 | import androidx.appcompat.app.AppCompatActivity
4 | import android.os.Bundle
5 | import android.view.MenuItem
6 | import androidx.fragment.app.Fragment
7 | import com.example.backstack_bottomnavigation.fragments.HomeFragment
8 | import com.example.backstack_bottomnavigation.fragments.MidFragment
9 | import com.example.backstack_bottomnavigation.fragments.ProfileFragment
10 | import com.google.android.material.bottomnavigation.BottomNavigationView
11 |
12 | class MainActivityNew : AppCompatActivity() {
13 | private lateinit var bottomNavigation:BottomNavigationView
14 | private lateinit var fragmentStackNew: com.aryan.bottomnavlibrary.FragmentStackNew
15 | private lateinit var bundle:Bundle
16 | override fun onCreate(savedInstanceState: Bundle?) {
17 | super.onCreate(savedInstanceState)
18 | setContentView(R.layout.activity_main)
19 | init(savedInstanceState)
20 | }
21 |
22 | private fun init(savedInstanceState: Bundle?) {
23 | bundle= Bundle()
24 | bottomNavigation=findViewById(R.id.btm_nav)
25 |
26 | if (savedInstanceState==null){
27 |
28 | fragmentStackNew= com.aryan.bottomnavlibrary.FragmentStackNew.Builder()
29 | .bottomMaxCount(3)
30 | .conatiner_id(R.id.frag_container).
31 | lastFragmentToStay(HomeFragment::class.java)
32 | .build(this)
33 |
34 | bundle.putString("Name","Aryan")
35 | bundle.putInt("Age",27)
36 |
37 | fragmentStackNew.updateFrag(HomeFragment::class.java,bundle)
38 | }else{
39 |
40 |
41 |
42 | fragmentStackNew= com.aryan.bottomnavlibrary.FragmentStackNew.Builder()
43 | .bottomMaxCount(3)
44 | .conatiner_id(R.id.frag_container).
45 | lastFragmentToStay(HomeFragment::class.java)
46 | .build(this)
47 |
48 | fragmentStackNew.savedInstanceState(savedInstanceState)
49 |
50 | }
51 |
52 | bottomNavigation.setOnNavigationItemSelectedListener(object :BottomNavigationView.OnNavigationItemSelectedListener{
53 | override fun onNavigationItemSelected(item: MenuItem): Boolean {
54 | when(item.itemId){
55 | R.id.action_home->{
56 |
57 | fragmentStackNew.updateFrag(HomeFragment::class.java,bundle)
58 |
59 | return true
60 | }
61 | R.id.action_mid->{
62 | fragmentStackNew.updateFrag(MidFragment::class.java,null)
63 |
64 | return true
65 | }
66 | R.id.action_profile->{
67 | fragmentStackNew.updateFrag(ProfileFragment::class.java,null)
68 |
69 | return true
70 | }
71 |
72 | }
73 | return false
74 |
75 | }
76 |
77 | })
78 |
79 | }
80 |
81 |
82 |
83 | override fun onBackPressed() {
84 | var returnedtag=fragmentStackNew.backHandling()
85 | if (returnedtag.equals(com.aryan.bottomnavlibrary.FragmentStackNew.CHILDTAG)) {
86 | return
87 | }
88 | if (returnedtag.equals(com.aryan.bottomnavlibrary.FragmentStackNew.DOBACKSTACK)) {
89 | super.onBackPressed()
90 | }else if (returnedtag.equals(HomeFragment::class.java.canonicalName)){
91 | bottomNavigation.selectedItemId=R.id.action_home
92 | }else if (returnedtag.equals(MidFragment::class.java.canonicalName)){
93 | bottomNavigation.selectedItemId=R.id.action_mid
94 | }else if (returnedtag.equals(ProfileFragment::class.java.canonicalName)){
95 | bottomNavigation.selectedItemId=R.id.action_profile
96 | }
97 |
98 |
99 | }
100 |
101 | override fun onSaveInstanceState(outState: Bundle) {
102 | var outStatenew= fragmentStackNew.setOutstatebundle(outState)
103 | super.onSaveInstanceState(outStatenew)
104 | }
105 | }
106 |
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/app/src/main/res/drawable/ic_launcher_background.xml:
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/gradlew:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env sh
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Attempt to set APP_HOME
10 | # Resolve links: $0 may be a link
11 | PRG="$0"
12 | # Need this for relative symlinks.
13 | while [ -h "$PRG" ] ; do
14 | ls=`ls -ld "$PRG"`
15 | link=`expr "$ls" : '.*-> \(.*\)$'`
16 | if expr "$link" : '/.*' > /dev/null; then
17 | PRG="$link"
18 | else
19 | PRG=`dirname "$PRG"`"/$link"
20 | fi
21 | done
22 | SAVED="`pwd`"
23 | cd "`dirname \"$PRG\"`/" >/dev/null
24 | APP_HOME="`pwd -P`"
25 | cd "$SAVED" >/dev/null
26 |
27 | APP_NAME="Gradle"
28 | APP_BASE_NAME=`basename "$0"`
29 |
30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
31 | DEFAULT_JVM_OPTS=""
32 |
33 | # Use the maximum available, or set MAX_FD != -1 to use that value.
34 | MAX_FD="maximum"
35 |
36 | warn () {
37 | echo "$*"
38 | }
39 |
40 | die () {
41 | echo
42 | echo "$*"
43 | echo
44 | exit 1
45 | }
46 |
47 | # OS specific support (must be 'true' or 'false').
48 | cygwin=false
49 | msys=false
50 | darwin=false
51 | nonstop=false
52 | case "`uname`" in
53 | CYGWIN* )
54 | cygwin=true
55 | ;;
56 | Darwin* )
57 | darwin=true
58 | ;;
59 | MINGW* )
60 | msys=true
61 | ;;
62 | NONSTOP* )
63 | nonstop=true
64 | ;;
65 | esac
66 |
67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
68 |
69 | # Determine the Java command to use to start the JVM.
70 | if [ -n "$JAVA_HOME" ] ; then
71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
72 | # IBM's JDK on AIX uses strange locations for the executables
73 | JAVACMD="$JAVA_HOME/jre/sh/java"
74 | else
75 | JAVACMD="$JAVA_HOME/bin/java"
76 | fi
77 | if [ ! -x "$JAVACMD" ] ; then
78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
79 |
80 | Please set the JAVA_HOME variable in your environment to match the
81 | location of your Java installation."
82 | fi
83 | else
84 | JAVACMD="java"
85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
86 |
87 | Please set the JAVA_HOME variable in your environment to match the
88 | location of your Java installation."
89 | fi
90 |
91 | # Increase the maximum file descriptors if we can.
92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
93 | MAX_FD_LIMIT=`ulimit -H -n`
94 | if [ $? -eq 0 ] ; then
95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
96 | MAX_FD="$MAX_FD_LIMIT"
97 | fi
98 | ulimit -n $MAX_FD
99 | if [ $? -ne 0 ] ; then
100 | warn "Could not set maximum file descriptor limit: $MAX_FD"
101 | fi
102 | else
103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
104 | fi
105 | fi
106 |
107 | # For Darwin, add options to specify how the application appears in the dock
108 | if $darwin; then
109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
110 | fi
111 |
112 | # For Cygwin, switch paths to Windows format before running java
113 | if $cygwin ; then
114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
116 | JAVACMD=`cygpath --unix "$JAVACMD"`
117 |
118 | # We build the pattern for arguments to be converted via cygpath
119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
120 | SEP=""
121 | for dir in $ROOTDIRSRAW ; do
122 | ROOTDIRS="$ROOTDIRS$SEP$dir"
123 | SEP="|"
124 | done
125 | OURCYGPATTERN="(^($ROOTDIRS))"
126 | # Add a user-defined pattern to the cygpath arguments
127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
129 | fi
130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
131 | i=0
132 | for arg in "$@" ; do
133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
135 |
136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
138 | else
139 | eval `echo args$i`="\"$arg\""
140 | fi
141 | i=$((i+1))
142 | done
143 | case $i in
144 | (0) set -- ;;
145 | (1) set -- "$args0" ;;
146 | (2) set -- "$args0" "$args1" ;;
147 | (3) set -- "$args0" "$args1" "$args2" ;;
148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
154 | esac
155 | fi
156 |
157 | # Escape application args
158 | save () {
159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
160 | echo " "
161 | }
162 | APP_ARGS=$(save "$@")
163 |
164 | # Collect all arguments for the java command, following the shell quoting and substitution rules
165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
166 |
167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
169 | cd "$(dirname "$0")"
170 | fi
171 |
172 | exec "$JAVACMD" "$@"
173 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Bottomnavlibrary v1.01
2 |
3 | [](https://android-arsenal.com/api?level=15) []( https://android-arsenal.com/details/1/7815 ) [](https://twitter.com/elite_novice) [](https://GitHub.com/Naereen/StrapDown.js/graphs/commit-activity) [](https://GitHub.com/Naereen/ama) [](http://makeapullrequest.com) [](https://GitHub.com/Naereen/)[](https://jitpack.io/#GitEliteNovice/BackStack_BottomNavigation)
4 |
5 | ## How this is helpful for you?
6 | With the help of this library , handling fragment will be Piece of cake for you.
7 | This library helps you to keeps history of previous tabs so that when the current tab's stack is exhausted the system back button will navigate to the previously selected tab.
8 | If you want to switch between fragments with botttomnavigation view, without losing fragments state and along with if you want to maintain backstack of fragments. Then this library is for you.
9 |
10 |
11 | **Note:-This example handles backstack and even app restores when after killed by Android System, all backstacks are preserved.
12 |
13 |
14 | If you want to say thanks or want to share how much you like my efforts, then you can share it with me with [](https://saythanks.io/to/GitEliteNovice)
15 |
16 |
17 |
18 |   
19 |
20 |
21 |
22 |
23 | ## Includle this library in your project
24 | ### For Gradle
25 |
26 | Add it in your root build.gradle at the end of repositories:
27 |
28 | allprojects {
29 | repositories {
30 | ...
31 | maven { url 'https://jitpack.io' }
32 | }
33 | }
34 | Step 2. Add the dependency
35 |
36 | dependencies {
37 | implementation 'com.github.GitEliteNovice:BackStack_BottomNavigation:v1.01'
38 | }
39 |
40 | ### For Maven
41 |
42 |
43 | jitpack.io
44 | https://jitpack.io
45 |
46 |
47 |
48 | Step 2. Add the dependency
49 |
50 |
51 | com.github.GitEliteNovice
52 | BackStack_BottomNavigation
53 | v1.01
54 |
55 |
56 | ### For implementation
57 |
58 | Make instance of Library like this
59 |
60 | fragmentStackNew= com.aryan.bottomnavlibrary.FragmentStackNew.Builder()
61 | .bottomMaxCount(3) // bottom tabs you have
62 | .conatiner_id(R.id.frag_container) // container id when you want add fragments
63 | .lastFragmentToStay(HomeFragment::class.java). // last fragment to reach when all fragment removed from backstack
64 | .build(this)
65 |
66 | fragmentStackNew.updateFrag(HomeFragment::class.java,null). // add fragment to show
67 |
68 |
69 |
70 | If you want to send extra data to fragment, you can do something like this
71 |
72 | bundle= Bundle()
73 | bundle.putString("Name","Aryan")
74 | bundle.putInt("Age",27)
75 |
76 | fragmentStackNew.updateFrag(HomeFragment::class.java,bundle). // send extra data to fragment
77 |
78 | If you want to handle state even when the activity kills by andoid os
79 |
80 | override fun onSaveInstanceState(outState: Bundle) {
81 | var outStatenew= fragmentStackNew.setOutstatebundle(outState). // add oustate bundle to library instance
82 | super.onSaveInstanceState(outStatenew)
83 | }
84 |
85 |
86 | Inside onCreate method, do something like this
87 |
88 | if (savedInstanceState==null){
89 |
90 | fragmentStackNew= com.aryan.bottomnavlibrary.FragmentStackNew.Builder()
91 | .bottomMaxCount(3)
92 | .conatiner_id(R.id.frag_container).
93 | lastFragmentToStay(HomeFragment::class.java)
94 | .build(this)
95 |
96 | bundle.putString("Name","Aryan")
97 | bundle.putInt("Age",27)
98 |
99 | fragmentStackNew.updateFrag(HomeFragment::class.java,bundle)
100 |
101 | }
102 | else
103 | {
104 |
105 | fragmentStackNew= com.aryan.bottomnavlibrary.FragmentStackNew.Builder()
106 | .bottomMaxCount(3)
107 | .conatiner_id(R.id.frag_container).
108 | lastFragmentToStay(HomeFragment::class.java)
109 | .build(this)
110 |
111 | fragmentStackNew.savedInstanceState(savedInstanceState)
112 |
113 | }
114 |
115 | ### This example includes following things
116 | * BottomNavLibrary
117 | * BottomNavigationView
118 |
119 |
120 |
121 |
122 | Android library to keeps a history of previous tabs
123 |
124 |
125 | Built with ❤︎ by Aryan Dhankar.
126 |
127 |
128 |
129 |
130 | Connect With Me
131 | -----------
132 |
133 | Aryan Dhankar (Elite Novice)
134 | I love making new friends, please feel free to connect with me.
135 |
136 |
137 | 
138 |
139 |
140 | 
141 |
142 |
143 | 
144 |
145 |
146 |
147 | Question / Contact Me
148 | ---------------------
149 | Please feel free to ping me at **aryandhankar11@gmail.com**.
150 |
--------------------------------------------------------------------------------
/bottomnavlibrary/src/main/java/com/aryan/bottomnavlibrary/FragmentStackNew.java:
--------------------------------------------------------------------------------
1 | package com.aryan.bottomnavlibrary;
2 |
3 | import android.os.Bundle;
4 | import androidx.annotation.NonNull;
5 | import androidx.fragment.app.Fragment;
6 | import androidx.fragment.app.FragmentActivity;
7 | import androidx.fragment.app.FragmentManager;
8 | import java.lang.reflect.Field;
9 | import java.util.ArrayList;
10 | import java.util.HashMap;
11 |
12 |
13 | public final class FragmentStackNew {
14 | private HashMap hashMap=new HashMap<>();
15 | private ArrayList arrayList=new ArrayList();
16 | private String CURRENT_TAG=null;
17 | private int bottomMaxCount;
18 | private int container_id;
19 | private String lastFragToStay;
20 | private FragmentManager supportFragmentManager;
21 | public static final String CHILDTAG="child";
22 | public static final String DOBACKSTACK="dobackstack";
23 | private FragmentStackNew(){
24 | }
25 | public static class Builder{
26 | private int bottomMaxCount=3;
27 | private int container_id=-1;
28 | private String lastFragToStay;
29 | private FragmentStackNew fragmentStackNew=null;
30 |
31 |
32 | public Builder bottomMaxCount(int bottomMaxCount){
33 | this.bottomMaxCount=bottomMaxCount;
34 | return this;
35 | }
36 |
37 | public Builder conatiner_id(int container_id){
38 | this.container_id=container_id;
39 | return this;
40 | }
41 |
42 |
43 | public Builder lastFragmentToStay(@NonNull Class modelClass){
44 | this.lastFragToStay=modelClass.getCanonicalName();
45 | return this;
46 | }
47 |
48 |
49 | public FragmentStackNew build(FragmentActivity context){
50 |
51 | if (fragmentStackNew==null){
52 | fragmentStackNew=new FragmentStackNew();
53 | }
54 |
55 | //
56 | fragmentStackNew.bottomMaxCount=bottomMaxCount;
57 | fragmentStackNew.container_id=container_id;
58 | fragmentStackNew.lastFragToStay=lastFragToStay;
59 | fragmentStackNew.supportFragmentManager= context.getSupportFragmentManager();
60 |
61 | //return instance of FragmentStackNew Instance
62 | return fragmentStackNew;
63 | }
64 |
65 | }
66 |
67 |
68 | public void updateFrag(@NonNull Class modelClass, Bundle extradata){
69 |
70 | if (hashMap.get(modelClass.getCanonicalName())==null){
71 |
72 | try {
73 |
74 | Fragment instance= (Fragment) modelClass.newInstance();
75 | if (extradata!=null){
76 | instance.setArguments(extradata);
77 | }
78 | hashMap.put(modelClass.getCanonicalName(),instance);
79 |
80 | } catch (IllegalAccessException e) {
81 | e.printStackTrace();
82 | } catch (InstantiationException e) {
83 | e.printStackTrace();
84 | }
85 | }
86 |
87 | if (CURRENT_TAG!=null&&CURRENT_TAG.equals(modelClass.getCanonicalName())){
88 | return;
89 | }
90 |
91 | Fragment prev_fragment=supportFragmentManager.findFragmentByTag(modelClass.getCanonicalName());
92 |
93 | // if fragment is not present in stack
94 | if (prev_fragment==null){
95 | if (hashMap.get(CURRENT_TAG)==null){
96 | supportFragmentManager.beginTransaction().add(container_id,hashMap.get(modelClass.getCanonicalName()),modelClass.getCanonicalName()).commit();
97 | }else{
98 | supportFragmentManager.beginTransaction().hide(hashMap.get(CURRENT_TAG)).add(container_id,hashMap.get(modelClass.getCanonicalName()),modelClass.getCanonicalName()).commit();
99 | }
100 |
101 | }
102 | // if fragment is already added
103 | else{
104 |
105 | supportFragmentManager.beginTransaction().hide(hashMap.get(CURRENT_TAG)).show(prev_fragment).commit();
106 | }
107 | CURRENT_TAG=modelClass.getCanonicalName();
108 | push(CURRENT_TAG);
109 | }
110 |
111 |
112 | public String backHandling(){
113 | Fragment currentFrag=supportFragmentManager.findFragmentByTag(CURRENT_TAG);
114 | if (currentFrag!=null&¤tFrag.getChildFragmentManager()!=null&¤tFrag.getChildFragmentManager().getBackStackEntryCount()>0){
115 | currentFrag.getChildFragmentManager().popBackStackImmediate();
116 | return CHILDTAG;
117 | }else {
118 | String TAG = pop(CURRENT_TAG);
119 | if (TAG!=null){
120 | Fragment fragment= supportFragmentManager.findFragmentByTag(TAG);
121 | supportFragmentManager.beginTransaction().hide(hashMap.get(CURRENT_TAG)).show(fragment).commit();
122 | CURRENT_TAG=TAG;
123 | return CURRENT_TAG;
124 |
125 |
126 |
127 | }else{
128 | if (CURRENT_TAG.equals(lastFragToStay)){
129 | return DOBACKSTACK;
130 | }else{
131 |
132 | Fragment latFag= supportFragmentManager.findFragmentByTag(lastFragToStay);
133 | supportFragmentManager.beginTransaction().hide(hashMap.get(CURRENT_TAG)).show(latFag).commit();
134 | CURRENT_TAG=lastFragToStay;
135 | return CURRENT_TAG;
136 |
137 | }
138 |
139 | }
140 | }
141 | }
142 |
143 |
144 | private void addAll( ArrayList array){
145 | arrayList.addAll(array);
146 | }
147 |
148 | private void push(String tag){
149 | if (bottomMaxCount==arrayList.size()){
150 | if (remove(tag)){
151 | arrayList.add(tag);
152 | }
153 | }else{
154 | arrayList.add(tag);
155 | }
156 | }
157 |
158 | private String pop(String tag){
159 | if (remove(tag)){
160 | if (arrayList.size()==0){
161 | return null;
162 | }else{
163 | return arrayList.get(arrayList.size()-1);
164 | }
165 | }else{
166 | return null;
167 | }
168 | }
169 |
170 | private Boolean remove( String tag){
171 | try {
172 | int index_value=arrayList.indexOf(tag);
173 | arrayList.remove(index_value);
174 | }catch (Exception e){
175 | return false;
176 | }
177 | return true;
178 | }
179 |
180 | private boolean set(Object object, String fieldName, Object fieldValue) {
181 | Class clazz = object.getClass();
182 | while (clazz != null) {
183 | try {
184 | Field field = clazz.getDeclaredField(fieldName);
185 | field.setAccessible(true);
186 | field.set(object, fieldValue);
187 | return true;
188 | } catch (NoSuchFieldException e) {
189 | clazz = clazz.getSuperclass();
190 | } catch (Exception e) {
191 | throw new IllegalStateException(e);
192 | }
193 | }
194 | return false;
195 | }
196 |
197 | public Bundle setOutstatebundle( Bundle outState){
198 |
199 | outState.putString("currentTag",CURRENT_TAG);
200 | outState.putStringArrayList("fragStack",arrayList);
201 | return outState;
202 | }
203 |
204 |
205 |
206 | public void savedInstanceState(Bundle savedInstanceState){
207 |
208 | ArrayList stack=savedInstanceState.getStringArrayList("fragStack");
209 |
210 | for(int i=0;i<=stack.size()-1;i++){
211 | Fragment fragment= supportFragmentManager.findFragmentByTag(stack.get(i));
212 |
213 | if (fragment!=null){
214 | hashMap.put(stack.get(i),fragment);
215 | supportFragmentManager.beginTransaction().remove(fragment).commitNow();
216 | updateFrag(fragment.getClass(),null);
217 | }
218 | }
219 | }
220 | }
221 |
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