Example usage for android.view View measure

Introduction

In this page you can find the example usage for android.view View measure.

Prototype

public final void measure(int widthMeasureSpec, int heightMeasureSpec)

Source Link

Document

This is called to find out how big a view should be.

Usage

From source file:Main.java

public static void calcViewMeasure(View view) {

    int width = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    int expandSpec = View.MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, View.MeasureSpec.AT_MOST);
    view.measure(width, expandSpec);
}

From source file:Main.java

public static void calcViewMeasure(View view) {
    int width = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    int expandSpec = View.MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, View.MeasureSpec.AT_MOST);
    view.measure(width, expandSpec);
}

From source file:Main.java

public static Bitmap getViewBitmap(View v) {
    v.setDrawingCacheEnabled(true);//  www  .  ja v a  2s  .c  om

    // this is the important code :)
    // Without it the view will have a dimension of 0,0 and the bitmap will
    // be null
    v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
            MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
    v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());

    v.buildDrawingCache(true);
    Bitmap bmp = Bitmap.createBitmap(v.getDrawingCache());
    v.setDrawingCacheEnabled(false); // clear drawing cache

    return bmp;
}

From source file:Main.java

public static int[] getWidthAndHeight(View view) {
    int[] res = new int[2];
    int w = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    int h = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    view.measure(w, h);
    res[1] = view.getMeasuredHeight();/*from   w w w  . ja v  a 2s  . c  o m*/
    res[0] = view.getMeasuredWidth();
    return res;
}

From source file:Main.java

public static Bitmap createBitmapFromView(View view) {

    if (view.getMeasuredHeight() <= 0) {
        int spec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
        view.measure(spec, spec);
        view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
        Bitmap bitmap = createBitmapSafely(view.getMeasuredWidth(), view.getMeasuredHeight(),
                Bitmap.Config.ARGB_8888, 1);
        if (bitmap != null) {
            synchronized (sCanvas) {
                Canvas canvas = sCanvas;
                canvas.setBitmap(bitmap);
                view.draw(canvas);/*from www.  ja v  a 2 s.  com*/
                canvas.setBitmap(null);
            }
        }
        return bitmap;
    }

    view.clearFocus();
    Bitmap bitmap = createBitmapSafely(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888, 1);
    if (bitmap != null) {
        synchronized (sCanvas) {
            Canvas canvas = sCanvas;
            canvas.setBitmap(bitmap);
            view.draw(canvas);
            canvas.setBitmap(null);
        }
    }
    return bitmap;
}

From source file:Main.java

public static int[] getMeasureViewSize(View view) {
    int size[] = new int[2];
    int width = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    int height = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    view.measure(width, height);
    size[0] = view.getMeasuredWidth();/*from w  w  w.j a  v a2s. co m*/
    size[1] = view.getMeasuredHeight();
    return size;
}

From source file:Main.java

public static void measureView(View v) {
    if (v == null) {
        return;//w w w  .ja  v a 2s  .c  om
    }
    int w = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    int h = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    v.measure(w, h);
}

From source file:Main.java

public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null) {
        // pre-condition
        return;//from w  w  w  .  ja v  a  2s. c  om
    }

    int totalHeight = listView.getPaddingTop() + listView.getPaddingBottom();
    for (int i = 0; i < listAdapter.getCount(); i++) {
        View listItem = listAdapter.getView(i, null, listView);
        if (listItem instanceof ViewGroup) {
            listItem.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
        }
        listItem.measure(0, 0);
        totalHeight += listItem.getMeasuredHeight();
    }

    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
}

From source file:Main.java

/**
 * get AbsListView height according to every children
 * //from w w w .j a va 2  s . c om
 * @param view
 * @return
 */
public static int getAbsListViewHeightBasedOnChildren(AbsListView view) {
    ListAdapter adapter;
    if (view == null || (adapter = view.getAdapter()) == null) {
        return 0;
    }

    int height = 0;
    for (int i = 0; i < adapter.getCount(); i++) {
        View item = adapter.getView(i, null, view);
        if (item instanceof ViewGroup) {
            item.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
        }
        item.measure(0, 0);
        height += item.getMeasuredHeight();
    }
    height += view.getPaddingTop() + view.getPaddingBottom();
    return height;
}

From source file:com.aniruddhc.acemusic.player.Drawers.NavigationDrawerFragment.java

/**
 * Clips ListViews to fit within the drawer's boundaries.
 *///from   w w w .  j ava 2s . co m
public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null) {
        // pre-condition
        return;
    }

    int totalHeight = 0;
    for (int i = 0; i < listAdapter.getCount(); i++) {
        View listItem = listAdapter.getView(i, null, listView);
        listItem.measure(0, 0);
        totalHeight += listItem.getMeasuredHeight();
    }

    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
}