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added Expandable RecyclerView example
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20 changes: 20 additions & 0 deletions
20
dynamic-recycler-view/src/main/java/com/rohitss/dynamicrecycler/DummyChildDataItem.java
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| @@ -0,0 +1,20 @@ | ||
| package com.rohitss.dynamicrecycler; | ||
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| import java.io.Serializable; | ||
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| /** | ||
| * <b></b> | ||
| * <p>This class is used to </p> | ||
| * Created by Rohit. | ||
| */ | ||
| class DummyChildDataItem implements Serializable { | ||
| private String childName; | ||
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| public String getChildName() { | ||
| return childName; | ||
| } | ||
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| public void setChildName(String childName) { | ||
| this.childName = childName; | ||
| } | ||
| } |
30 changes: 30 additions & 0 deletions
30
dynamic-recycler-view/src/main/java/com/rohitss/dynamicrecycler/DummyParentDataItem.java
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| @@ -0,0 +1,30 @@ | ||
| package com.rohitss.dynamicrecycler; | ||
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| import java.io.Serializable; | ||
| import java.util.ArrayList; | ||
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| /** | ||
| * <b></b> | ||
| * <p>This class is used to </p> | ||
| * Created by Rohit. | ||
| */ | ||
| class DummyParentDataItem implements Serializable { | ||
| private String parentName; | ||
| private ArrayList<DummyChildDataItem> childDataItems; | ||
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| public String getParentName() { | ||
| return parentName; | ||
| } | ||
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| public void setParentName(String parentName) { | ||
| this.parentName = parentName; | ||
| } | ||
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| public ArrayList<DummyChildDataItem> getChildDataItems() { | ||
| return childDataItems; | ||
| } | ||
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| public void setChildDataItems(ArrayList<DummyChildDataItem> childDataItems) { | ||
| this.childDataItems = childDataItems; | ||
| } | ||
| } |
179 changes: 178 additions & 1 deletion
179
dynamic-recycler-view/src/main/java/com/rohitss/dynamicrecycler/MainActivity.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,12 +1,189 @@ | ||
| package com.rohitss.dynamicrecycler; | ||
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| import android.support.v7.app.AppCompatActivity; | ||
| import android.content.Context; | ||
| import android.os.Bundle; | ||
| import android.support.v4.content.ContextCompat; | ||
| import android.support.v7.app.AppCompatActivity; | ||
| import android.support.v7.widget.LinearLayoutManager; | ||
| import android.support.v7.widget.RecyclerView; | ||
| import android.view.Gravity; | ||
| import android.view.LayoutInflater; | ||
| import android.view.View; | ||
| import android.view.ViewGroup; | ||
| import android.widget.LinearLayout; | ||
| import android.widget.TextView; | ||
| import android.widget.Toast; | ||
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| import java.util.ArrayList; | ||
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| public class MainActivity extends AppCompatActivity { | ||
| private RecyclerView mRecyclerView; | ||
| private Context mContext; | ||
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| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
| setContentView(R.layout.activity_main); | ||
| mContext = MainActivity.this; | ||
| mRecyclerView = findViewById(R.id.recyclerView); | ||
| RecyclerDataAdapter recyclerDataAdapter = new RecyclerDataAdapter(getDummyDataToPass()); | ||
| mRecyclerView.setLayoutManager(new LinearLayoutManager(mContext)); | ||
| mRecyclerView.setAdapter(recyclerDataAdapter); | ||
| mRecyclerView.setHasFixedSize(true); | ||
| } | ||
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| private ArrayList<DummyParentDataItem> getDummyDataToPass() { | ||
| ArrayList<DummyParentDataItem> dummyDataItems = new ArrayList<>(); | ||
| ArrayList<DummyChildDataItem> dummyChildDataItems; | ||
| DummyParentDataItem dummyParentDataItem; | ||
| DummyChildDataItem dummyChildDataItem; | ||
| ///////// | ||
| dummyParentDataItem = new DummyParentDataItem(); | ||
| dummyParentDataItem.setParentName("Parent 1"); | ||
| dummyChildDataItems = new ArrayList<>(); | ||
| // | ||
| dummyChildDataItem = new DummyChildDataItem(); | ||
| dummyChildDataItem.setChildName("Child Item 1"); | ||
| dummyChildDataItems.add(dummyChildDataItem); | ||
| // | ||
| dummyParentDataItem.setChildDataItems(dummyChildDataItems); | ||
| dummyDataItems.add(dummyParentDataItem); | ||
| //////// | ||
| dummyParentDataItem = new DummyParentDataItem(); | ||
| dummyParentDataItem.setParentName("Parent 2"); | ||
| dummyChildDataItems = new ArrayList<>(); | ||
| // | ||
| dummyChildDataItem = new DummyChildDataItem(); | ||
| dummyChildDataItem.setChildName("Child Item 1"); | ||
| dummyChildDataItems.add(dummyChildDataItem); | ||
| // | ||
| dummyChildDataItem = new DummyChildDataItem(); | ||
| dummyChildDataItem.setChildName("Child Item 2"); | ||
| dummyChildDataItems.add(dummyChildDataItem); | ||
| // | ||
| dummyParentDataItem.setChildDataItems(dummyChildDataItems); | ||
| dummyDataItems.add(dummyParentDataItem); | ||
| //////// | ||
| dummyParentDataItem = new DummyParentDataItem(); | ||
| dummyParentDataItem.setParentName("Parent 3"); | ||
| dummyChildDataItems = new ArrayList<>(); | ||
| // | ||
| dummyChildDataItem = new DummyChildDataItem(); | ||
| dummyChildDataItem.setChildName("Child Item 1"); | ||
| dummyChildDataItems.add(dummyChildDataItem); | ||
| // | ||
| dummyChildDataItem = new DummyChildDataItem(); | ||
| dummyChildDataItem.setChildName("Child Item 2"); | ||
| dummyChildDataItems.add(dummyChildDataItem); | ||
| // | ||
| dummyChildDataItem = new DummyChildDataItem(); | ||
| dummyChildDataItem.setChildName("Child Item 3"); | ||
| dummyChildDataItems.add(dummyChildDataItem); | ||
| // | ||
| dummyChildDataItem = new DummyChildDataItem(); | ||
| dummyChildDataItem.setChildName("Child Item 4"); | ||
| dummyChildDataItems.add(dummyChildDataItem); | ||
| // | ||
| dummyChildDataItem = new DummyChildDataItem(); | ||
| dummyChildDataItem.setChildName("Child Item 5"); | ||
| dummyChildDataItems.add(dummyChildDataItem); | ||
| // | ||
| dummyParentDataItem.setChildDataItems(dummyChildDataItems); | ||
| dummyDataItems.add(dummyParentDataItem); | ||
| //////// | ||
| return dummyDataItems; | ||
| } | ||
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| private class RecyclerDataAdapter extends RecyclerView.Adapter<RecyclerDataAdapter.MyViewHolder> { | ||
| private ArrayList<DummyParentDataItem> dummyParentDataItems; | ||
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| RecyclerDataAdapter(ArrayList<DummyParentDataItem> dummyParentDataItems) { | ||
| this.dummyParentDataItems = dummyParentDataItems; | ||
| int intMaxSize = 0; | ||
| for (int index = 0; index < dummyParentDataItems.size(); index++) { | ||
| int intMaxSizeTemp = dummyParentDataItems.get(index).getChildDataItems().size(); | ||
| if (intMaxSizeTemp > intMaxSize) intMaxSize = intMaxSizeTemp; | ||
| } | ||
| } | ||
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| @Override | ||
| public RecyclerDataAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { | ||
| View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_parent_child_listing, parent, false); | ||
| return new MyViewHolder(itemView); | ||
| } | ||
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| @Override | ||
| public void onBindViewHolder(RecyclerDataAdapter.MyViewHolder holder, int position) { | ||
| DummyParentDataItem dummyParentDataItem = dummyParentDataItems.get(position); | ||
| holder.tv_parentName.setText(dummyParentDataItem.getParentName()); | ||
| // | ||
| int noOfTextViews = holder.ll_child_items.getChildCount(); | ||
| int noOfSubModules = dummyParentDataItem.getChildDataItems().size(); | ||
| if (noOfSubModules < noOfTextViews) { | ||
| for (int index = noOfSubModules; index < noOfTextViews; index++) { | ||
| TextView currentTextView = (TextView) holder.ll_child_items.getChildAt(index); | ||
| currentTextView.setVisibility(View.GONE); | ||
| } | ||
| } | ||
| for (int textViewIndex = 0; textViewIndex < noOfSubModules; textViewIndex++) { | ||
| TextView currentTextView = (TextView) holder.ll_child_items.getChildAt(textViewIndex); | ||
| currentTextView.setText(dummyParentDataItem.getChildDataItems().get(textViewIndex).getChildName()); | ||
| /*currentTextView.setOnClickListener(new View.OnClickListener() { | ||
| @Override | ||
| public void onClick(View view) { | ||
| Toast.makeText(mContext, "" + ((TextView) view).getText().toString(), Toast.LENGTH_SHORT).show(); | ||
| } | ||
| });*/ | ||
| } | ||
| } | ||
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| @Override | ||
| public int getItemCount() { | ||
| return dummyParentDataItems.size(); | ||
| } | ||
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| class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { | ||
| private Context context; | ||
| private TextView tv_parentName; | ||
| private LinearLayout ll_child_items; | ||
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| MyViewHolder(View itemView) { | ||
| super(itemView); | ||
| context = itemView.getContext(); | ||
| tv_parentName = itemView.findViewById(R.id.tv_parentName); | ||
| ll_child_items = itemView.findViewById(R.id.ll_child_items); | ||
| ll_child_items.setVisibility(View.GONE); | ||
| int intMaxSize = 0; | ||
| for (int index = 0; index < dummyParentDataItems.size(); index++) { | ||
| int intMaxSizeTemp = dummyParentDataItems.get(index).getChildDataItems().size(); | ||
| if (intMaxSizeTemp > intMaxSize) intMaxSize = intMaxSizeTemp; | ||
| } | ||
| for (int indexView = 0; indexView < intMaxSize; indexView++) { | ||
| TextView textView = new TextView(context); | ||
| textView.setId(indexView); | ||
| textView.setPadding(0, 20, 0, 20); | ||
| textView.setGravity(Gravity.CENTER); | ||
| textView.setBackground(ContextCompat.getDrawable(context, R.drawable.background_sub_module_text)); | ||
| LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT); | ||
| textView.setOnClickListener(this); | ||
| ll_child_items.addView(textView, layoutParams); | ||
| } | ||
| tv_parentName.setOnClickListener(this); | ||
| } | ||
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| @Override | ||
| public void onClick(View view) { | ||
| if (view.getId() == R.id.tv_parentName) { | ||
| if (ll_child_items.getVisibility() == View.VISIBLE) { | ||
| ll_child_items.setVisibility(View.GONE); | ||
| } else { | ||
| ll_child_items.setVisibility(View.VISIBLE); | ||
| } | ||
| } else { | ||
| TextView textViewClicked = (TextView) view; | ||
| Toast.makeText(context, "" + textViewClicked.getText().toString(), Toast.LENGTH_SHORT).show(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
13 changes: 13 additions & 0 deletions
13
dynamic-recycler-view/src/main/res/drawable/background_sub_module_text.xml
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| @@ -0,0 +1,13 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> | ||
| <item | ||
| android:bottom="-2dp" | ||
| android:left="-2dp" | ||
| android:right="-2dp"> | ||
| <shape android:shape="rectangle"> | ||
| <stroke | ||
| android:width="1dp" | ||
| android:color="#FFBDBDBD"/> | ||
| </shape> | ||
| </item> | ||
| </layer-list> |
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28 changes: 28 additions & 0 deletions
28
dynamic-recycler-view/src/main/res/layout/item_parent_child_listing.xml
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| @@ -0,0 +1,28 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <android.support.v7.widget.CardView | ||
| xmlns:android="http://schemas.android.com/apk/res/android" | ||
| xmlns:app="http://schemas.android.com/apk/res-auto" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:layout_margin="10dp" | ||
| app:cardCornerRadius="4dp"> | ||
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| <LinearLayout | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:orientation="vertical"> | ||
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| <TextView | ||
| android:id="@+id/tv_parentName" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:padding="16dp"/> | ||
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| <LinearLayout | ||
| android:id="@+id/ll_child_items" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:orientation="vertical"> | ||
| </LinearLayout> | ||
| </LinearLayout> | ||
| </android.support.v7.widget.CardView> |
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