Wie kann ich Gridview ändern, wenn ich auf Bildansicht klicke

Question

Ich möchte Ansichtsarray ändern, wenn ich auf jede 'Bildansicht' klicke wenn ich auf Nr.1 ​​klicke 'Bildansicht' 1 Spaltenraster anzeigen
click no.2'image ' -> 2 Spalten Rasteransicht Nr.3 'Bildansicht' -> 3 Spalten Rasteransicht

Ich habe eine XML-Datei für jede Rasteransicht erstellt. Wie kann ich es schaffen?

public class MainActivity extends AppCompatActivity { 

ImageView menu1,menu2,menu3; 
GridView first,second,third; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    menu1 = (ImageView) findViewById(Nemo1); 
    menu2 = (ImageView) findViewById(R.id.Nemo2); 
    menu3 = (ImageView) findViewById(R.id.Nemo3); 

    first = (GridView) findViewById(R.id.grid1); 
    second = (GridView) findViewById(R.id.grid2); 
    third = (GridView) findViewById(R.id.grid3); 

    menu1.setOnClickListener(new View.OnClickListener(){ 
     @Override 
     public void onClick(View v) { 
      first.setVisibility(View.VISIBLE); 

      v.setVisibility(View.GONE); 
     } 
    }); 

    menu2.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      second.setVisibility(View.VISIBLE); 
      v.setVisibility(View.GONE); 
     } 
    }); 

    menu3.setOnClickListener(new View.OnClickListener(){ 
     @Override 
     public void onClick(View v) { 
       third.setVisibility(View.VISIBLE); 
      v.setVisibility(View.GONE); 
    } 
}); 
} 
} 

Answer 1

• MainActivity.java

public class MainActivity extends AppCompatActivity { 
private RecyclerAdapter recyclerAdapter; 
private ImageView menu1,menu2,menu3; 
private RecyclerView recycler; 
private GridLayoutManager gridLayoutManager; 
private ArrayList<String> list; 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    recycler = (RecyclerView) findViewById(R.id.recycler); 
    list = new ArrayList<String>(); 
    menu1 = (ImageView) findViewById(R.id.Nemo1); 
    menu2 = (ImageView) findViewById(R.id.Nemo2); 
    menu3 = (ImageView) findViewById(R.id.Nemo3); 
    for(int i = 0; i < 10 ; i++){ 
     list.add("item " +i); 
    } 
    recycler.setHasFixedSize(true); 
    recyclerAdapter = new RecyclerAdapter(MainActivity.this, list); 
    recycler.setAdapter(recyclerAdapter); 
    menu1.setOnClickListener(new View.OnClickListener(){ 
     @Override 
     public void onClick(View v) { 
      gridLayoutManager = new GridLayoutManager(MainActivity.this, 1); 
      recycler.setLayoutManager(gridLayoutManager); 
     } 
    }); 
    menu2.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      gridLayoutManager = new GridLayoutManager(MainActivity.this, 2); 
      recycler.setLayoutManager(gridLayoutManager); 
     } 
    }); 
    menu3.setOnClickListener(new View.OnClickListener(){ 
     @Override 
     public void onClick(View v) { 
      gridLayoutManager = new GridLayoutManager(MainActivity.this, 3); 
      recycler.setLayoutManager(gridLayoutManager); 
     } 
    }); 
} 
} 

• RecyclerAdapter.java

public class RecyclerAdapter extends  RecyclerView.Adapter<RecyclerAdapter.ViewHolder> { 
private Context mContext; 
private ArrayList<String> list; 
public RecyclerAdapter(Context mContext, ArrayList<String> list) { 
    this.mContext = mContext; 
    this.list = list; 
} 
@Override 
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
    View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item, parent, false); 
    return new ViewHolder(v); 
} 
@Override 
public void onBindViewHolder(ViewHolder holder, int position) { 
    holder.itemTextView.setText(list.get(position)); 
} 
@Override 
public int getItemCount() { 
    return list.size(); 
} 
public class ViewHolder extends RecyclerView.ViewHolder { 
    private TextView itemTextView; 
    public ViewHolder(View itemView) { 
     super(itemView); 
     itemTextView = (TextView) itemView.findViewById(R.id.itemTextView); 
    } 
} 
} 

• item.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:orientation="vertical" 
android:layout_width="match_parent" 
android:layout_height="wrap_content" 
android:padding="10dp"> 
<TextView 
    android:id="@+id/itemTextView" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_gravity="center" 
    android:gravity="center" 
    android:textSize="14sp" 
    android:textColor="@color/colorPrimary" 
    android:text="item1"/> 
</LinearLayout> 

• activity_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:id="@+id/activity_main" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingBottom="@dimen/activity_vertical_margin" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
tools:context="pithiyasagar.gridviewcolumn.MainActivity"> 
<LinearLayout 
    android:id="@+id/lnrImageButton" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal"> 
    <ImageView 
     android:id="@+id/Nemo1" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:src="@mipmap/ic_launcher" 
     android:layout_weight="1"/> 
    <ImageView 
     android:id="@+id/Nemo2" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:src="@mipmap/ic_launcher" 
     android:layout_weight="1"/> 
    <ImageView 
     android:id="@+id/Nemo3" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:src="@mipmap/ic_launcher" 
     android:layout_weight="1"/> 
</LinearLayout> 
<android.support.v7.widget.RecyclerView 
    android:id="@+id/recycler" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:layout_below="@+id/lnrImageButton"> 
</android.support.v7.widget.RecyclerView> 
</RelativeLayout> 

• Ausgangsbildschirm: