I am planning to make grid base application in which number of grids will change according to user\'s click. grid pattern:- 2*2 , 4*4 ... [like, user will click on correct g
Finally i got answer of My question:
Here need to take SquareImageView for imageview and programatically set column of gridview, now see below code:
SquareImageView.java
public class SquareImageView extends ImageView {
public SquareImageView(Context context) {
super(context);
}
public SquareImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public SquareImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
setMeasuredDimension(getMeasuredWidth(), getMeasuredWidth()); // Snap to
// width
}
}
Create Custome adapter for view inflator,
layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<com.example.SquareImageView
android:id="@+id/image_grid"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</com.example.SquareImageView>
</LinearLayout>
MainActivity.java
public class MainActivity extends Activity implements OnClickListener {
int counter = 1;
CustomGrid adapter;
static int colum = 2;
public static GridView gridview;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
adapter = new CustomGrid(MainActivity.this);
gridview = (GridView) findViewById(R.id.gridview);
gridview.setNumColumns(2);
gridview.setAdapter(adapter);
}
public class CustomGrid extends BaseAdapter {
private Context mContext;
CustomGrid adgg;
int mNumColumns = 2;
private Random rand = new Random();
GridView gg;
int color = Color.argb(255, rand.nextInt(256), rand.nextInt(256), rand.nextInt(256));
float alfa = 0.1f;
int rand_ind = rand.nextInt((2 * 2) - 0) + 0;
public CustomGrid(Context c) {
mContext = c;
// this.Imageid = Imageid;
// this.web = web;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mNumColumns * mNumColumns;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View gridView;
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View grid = new View(mContext);
grid = inflater.inflate(R.layout.layout, null);
final View imageView = (ImageView) grid.findViewById(R.id.image_grid);
if (convertView == null) {
if (position == rand_ind) {
imageView.setBackgroundColor(getColorWithAlpha(color, alfa));
} else {
imageView.setBackgroundColor(color);
}
} else {
grid = (View) convertView;
}
grid.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (position == rand_ind) {
// Correct postion click time if condition occur..........
if (counter == 2) {
mNumColumns = mNumColumns + 1;
alfa = alfa + 0.1f;
} else if (counter == 6) {
mNumColumns = mNumColumns + 1;
alfa = alfa + 0.08f;
} else if (counter == 8) {
mNumColumns = mNumColumns + 1;
alfa = alfa + 0.1f;
} else if (counter == 12) {
mNumColumns = mNumColumns + 1;
alfa = alfa + 0.1f;
} else if (counter == 14) {
mNumColumns = mNumColumns + 1;
alfa = alfa + 0.1f;
} else if (counter == 16) {
mNumColumns = mNumColumns + 1;
alfa = alfa + 0.1f;
} else if (counter == 18) {
mNumColumns = mNumColumns + 1;
alfa = alfa + 0.05f;
} else if (counter >= 18) {
// mNumColumns = mNumColumns + 1;
alfa = 0.8f;
}
gridview.setNumColumns(mNumColumns);
gridview.setAdapter(adapter);
adapter.notifyDataSetChanged();
rand_ind = rand.nextInt((mNumColumns * mNumColumns) - 0) + 0;
} else {
// Here code for nagative click............ whem click
// nagative at time geanarate this code.........
}
}
});
return grid;
}
public int getColorWithAlpha(int color, float ratio) {
int newColor = 0;
int alpha = Math.round(Color.alpha(color) * ratio);
int r = Color.red(color);
int g = Color.green(color);
int b = Color.blue(color);
newColor = Color.argb(alpha, r, g, b);
return newColor;
}
}
@Override
public void onClick(View v) {
}
}
I hope this answer help full to any one.