本文整理汇总了Java中android.widget.ScrollView.getChildCount方法的典型用法代码示例。如果您正苦于以下问题:Java ScrollView.getChildCount方法的具体用法?Java ScrollView.getChildCount怎么用?Java ScrollView.getChildCount使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类android.widget.ScrollView
的用法示例。
在下文中一共展示了ScrollView.getChildCount方法的13个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getScrollViewBitmap
import android.widget.ScrollView; //导入方法依赖的package包/类
/**
* 截取scrollview的屏幕
**/
public static Bitmap getScrollViewBitmap(ScrollView scrollView) {
int h = 0;
Bitmap bitmap;
for (int i = 0; i < scrollView.getChildCount(); i++) {
h += scrollView.getChildAt(i).getHeight();
}
// 创建对应大小的bitmap
bitmap = Bitmap.createBitmap(ScreenUtils.getScreenWidth(), h,
Bitmap.Config.ARGB_4444);
final Canvas canvas = new Canvas(bitmap);
canvas.drawColor(Color.parseColor("#f2f7fa"));
scrollView.draw(canvas);
return bitmap;
}
示例2: computeVerticalScrollRange
import android.widget.ScrollView; //导入方法依赖的package包/类
/**
* Copy From ScrollView (API Level >= 14)
* <p>The scroll range of a scroll view is the overall height of all of its
* children.</p>
*/
private int computeVerticalScrollRange(ScrollView scrollView) {
final int count = scrollView.getChildCount();
final int contentHeight = scrollView.getHeight() - scrollView.getPaddingBottom() - scrollView.getPaddingTop();
if (count == 0) {
return contentHeight;
}
int scrollRange = scrollView.getChildAt(0).getBottom();
final int scrollY = scrollView.getScrollY();
final int overScrollBottom = Math.max(0, scrollRange - contentHeight);
if (scrollY < 0) {
scrollRange -= scrollY;
} else if (scrollY > overScrollBottom) {
scrollRange += scrollY - overScrollBottom;
}
return scrollRange;
}
示例3: onCreate
import android.widget.ScrollView; //导入方法依赖的package包/类
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTitle("ScrollView");
setContentView(R.layout.scroll_view_layout);
final ScrollView scrollView = (ScrollView) findViewById(R.id.container);
final int childCount = scrollView.getChildCount();
LogUtil.d(" scroll view child count : " + childCount);
scrollView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
int oldScrollY = 0;
@Override
public void onScrollChanged() {
LogUtil.d("ScrollView scroll changed scroll view : " + (scrollView.getScrollY() - oldScrollY));
oldScrollY = scrollView.getScrollY();
LogUtil.d("Height : " + scrollView.getHeight());
}
});
}
示例4: canChildScrollDown
import android.widget.ScrollView; //导入方法依赖的package包/类
public static boolean canChildScrollDown(View view) {
if (android.os.Build.VERSION.SDK_INT < 14) {
if (view instanceof AbsListView) {
final AbsListView absListView = (AbsListView) view;
return absListView.getChildCount() > 0
&& (absListView.getLastVisiblePosition() < absListView.getChildCount() - 1
|| absListView.getChildAt(absListView.getChildCount() - 1).getBottom() > absListView.getPaddingBottom());
} else if (view instanceof ScrollView) {
ScrollView scrollView = (ScrollView) view;
if (scrollView.getChildCount() == 0) {
return false;
} else {
return scrollView.getScrollY() < scrollView.getChildAt(0).getHeight() - scrollView.getHeight();
}
} else {
return false;
}
} else {
return view.canScrollVertically(1);
}
}
示例5: saveScrollViewToBitmap
import android.widget.ScrollView; //导入方法依赖的package包/类
private static Bitmap saveScrollViewToBitmap(ScrollView scrollView) {
int h = 0;
for (int i = 0; i < scrollView.getChildCount(); i++) {
h += scrollView.getChildAt(i).getHeight();
}
Bitmap bitmap = Bitmap.createBitmap(scrollView.getWidth(), h,
Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bitmap);
scrollView.draw(canvas);
return bitmap;
}
示例6: getBitmapByView
import android.widget.ScrollView; //导入方法依赖的package包/类
/**
* 截取scrollview的屏幕
* **/
public static Bitmap getBitmapByView(ScrollView scrollView) {
int h = 0;
Bitmap bitmap = null;
// 获取listView实际高度
for (int i = 0; i < scrollView.getChildCount(); i++) {
h += scrollView.getChildAt(i).getHeight();
}
// 创建对应大小的bitmap
bitmap = Bitmap.createBitmap(scrollView.getWidth(), h,
Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bitmap);
scrollView.draw(canvas);
return bitmap;
}
示例7: getBitmapByView
import android.widget.ScrollView; //导入方法依赖的package包/类
public static Bitmap getBitmapByView(ScrollView scrollView) {
int h = 0;
for (int i = 0; i < scrollView.getChildCount(); i++) {
h += scrollView.getChildAt(i).getHeight();
}
Bitmap bitmap = Bitmap.createBitmap(scrollView.getWidth(), h, Config.ARGB_8888);
scrollView.draw(new Canvas(bitmap));
return bitmap;
}
示例8: toBitmap
import android.widget.ScrollView; //导入方法依赖的package包/类
/**
* 把view转化为bitmap(截图)
* 参见:http://www.cnblogs.com/lee0oo0/p/3355468.html
*/
public static Bitmap toBitmap(View view) {
int width = view.getWidth();
int height = view.getHeight();
if (view instanceof ListView) {
height = 0;
// 获取listView实际高度
ListView listView = (ListView) view;
for (int i = 0; i < listView.getChildCount(); i++) {
height += listView.getChildAt(i).getHeight();
}
} else if (view instanceof ScrollView) {
height = 0;
// 获取scrollView实际高度
ScrollView scrollView = (ScrollView) view;
for (int i = 0; i < scrollView.getChildCount(); i++) {
height += scrollView.getChildAt(i).getHeight();
}
}
view.setDrawingCacheEnabled(true);
view.clearFocus();
view.setPressed(false);
boolean willNotCache = view.willNotCacheDrawing();
view.setWillNotCacheDrawing(false);
// Reset the drawing cache background color to fully transparent for the duration of this operation
int color = view.getDrawingCacheBackgroundColor();
view.setDrawingCacheBackgroundColor(Color.WHITE);//截图去黑色背景(透明像素)
if (color != Color.WHITE) {
view.destroyDrawingCache();
}
view.buildDrawingCache();
Bitmap cacheBitmap = view.getDrawingCache();
if (cacheBitmap == null) {
return null;
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawBitmap(cacheBitmap, 0, 0, null);
canvas.save(Canvas.ALL_SAVE_FLAG);
canvas.restore();
if (!bitmap.isRecycled()) {
LogUtils.verbose("recycle bitmap: " + bitmap.toString());
bitmap.recycle();
}
// Restore the view
view.destroyDrawingCache();
view.setWillNotCacheDrawing(willNotCache);
view.setDrawingCacheBackgroundColor(color);
return bitmap;
}
示例9: toBitmap
import android.widget.ScrollView; //导入方法依赖的package包/类
/**
* 把view转化为bitmap(截图)
* 参见:http://www.cnblogs.com/lee0oo0/p/3355468.html
*/
public static Bitmap toBitmap(View view) {
int width = view.getWidth();
int height = view.getHeight();
if (view instanceof ListView) {
height = 0;
// 获取listView实际高度
ListView listView = (ListView) view;
for (int i = 0; i < listView.getChildCount(); i++) {
height += listView.getChildAt(i).getHeight();
}
} else if (view instanceof ScrollView) {
height = 0;
// 获取scrollView实际高度
ScrollView scrollView = (ScrollView) view;
for (int i = 0; i < scrollView.getChildCount(); i++) {
height += scrollView.getChildAt(i).getHeight();
}
}
view.setDrawingCacheEnabled(true);
view.clearFocus();
view.setPressed(false);
boolean willNotCache = view.willNotCacheDrawing();
view.setWillNotCacheDrawing(false);
// Reset the drawing cache background color to fully transparent for the duration of this operation
int color = view.getDrawingCacheBackgroundColor();
view.setDrawingCacheBackgroundColor(Color.WHITE);//截图去黑色背景(透明像素)
if (color != Color.WHITE) {
view.destroyDrawingCache();
}
view.buildDrawingCache();
Bitmap cacheBitmap = view.getDrawingCache();
if (cacheBitmap == null) {
return null;
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawBitmap(cacheBitmap, 0, 0, null);
canvas.save(Canvas.ALL_SAVE_FLAG);
canvas.restore();
if (!bitmap.isRecycled()) {
// LogUtils.verbose("recycle bitmap: " + bitmap.toString());
bitmap.recycle();
}
// Restore the view
view.destroyDrawingCache();
view.setWillNotCacheDrawing(willNotCache);
view.setDrawingCacheBackgroundColor(color);
return bitmap;
}
示例10: isViewBeingDragged
import android.widget.ScrollView; //导入方法依赖的package包/类
public boolean isViewBeingDragged(MotionEvent event, ScrollView view) {
if (view.getChildCount() == 0) {
return true;
}
view.getLocationOnScreen(this.mViewLocationResult);
int viewLeft = this.mViewLocationResult[0];
int viewTop = this.mViewLocationResult[1];
this.mRect.set(viewLeft, viewTop, view.getWidth() + viewLeft, view.getHeight() + viewTop);
int rawX = (int) event.getRawX();
int rawY = (int) event.getRawY();
return this.mRect.contains(rawX, rawY) ? isReadyForPull(view, (float) (rawX - this.mRect
.left), (float) (rawY - this.mRect.top)) : false;
}
示例11: canScrollViewScroll
import android.widget.ScrollView; //导入方法依赖的package包/类
private static boolean canScrollViewScroll(ScrollView sv) {
if (sv.getChildCount() == 0)
return false;
final int childHeight = sv.getChildAt(0).getMeasuredHeight();
return sv.getMeasuredHeight() - sv.getPaddingTop() - sv.getPaddingBottom() < childHeight;
}
示例12: canChildScrollDown
import android.widget.ScrollView; //导入方法依赖的package包/类
public static boolean canChildScrollDown(View view) {
if (view instanceof AbsListView) {
final AbsListView absListView = (AbsListView) view;
if (Build.VERSION.SDK_INT < 14) {
return absListView.getChildCount() == 0
|| absListView.getAdapter() == null
|| (absListView.getChildCount() > 0
&& (absListView.getLastVisiblePosition() < absListView.getAdapter().getCount() - 1)
|| absListView.getChildAt(absListView.getChildCount() - 1).getBottom()
> absListView.getHeight() - absListView.getPaddingBottom());
} else {
if (Build.VERSION.SDK_INT < 26)
return absListView.getChildCount() == 0 ||
ViewCompat.canScrollVertically(view, 1);
else
return absListView.getChildCount() == 0 ||
view.canScrollVertically(1);
}
} else if (view instanceof ScrollView) {
final ScrollView scrollView = (ScrollView) view;
if (Build.VERSION.SDK_INT < 14) {
return scrollView.getChildCount() == 0
|| (scrollView.getChildCount() != 0
&& scrollView.getScrollY() < scrollView.getChildAt(0).getHeight()
- scrollView.getHeight());
} else {
if (Build.VERSION.SDK_INT < 26)
return scrollView.getChildCount() == 0 ||
ViewCompat.canScrollVertically(view, 1);
else
return scrollView.getChildCount() == 0 ||
view.canScrollVertically(1);
}
} else {
try {
if (view instanceof RecyclerView) {
final RecyclerView recyclerView = (RecyclerView) view;
if (Build.VERSION.SDK_INT < 26)
return recyclerView.getChildCount() == 0 ||
ViewCompat.canScrollVertically(view, 1);
else
return recyclerView.getChildCount() == 0 ||
view.canScrollVertically(1);
}
} catch (NoClassDefFoundError e) {
e.printStackTrace();
}
if (Build.VERSION.SDK_INT < 26)
return ViewCompat.canScrollVertically(view, 1);
else
return view.canScrollVertically(1);
}
}
示例13: toBitmap
import android.widget.ScrollView; //导入方法依赖的package包/类
/**
* convert View to Bitmap.
*
* @param view the view
* @return the bitmap
* @link http ://www.cnblogs.com/lee0oo0/p/3355468.html
*/
public static Bitmap toBitmap(View view) {
//以下代码用于把当前view转化为bitmap(截图)
int width = view.getWidth();
int height = view.getHeight();
if (view instanceof ListView) {
height = 0;
// 获取listView实际高度
ListView listView = (ListView) view;
for (int i = 0; i < listView.getChildCount(); i++) {
height += listView.getChildAt(i).getHeight();
}
} else if (view instanceof ScrollView) {
height = 0;
// 获取scrollView实际高度
ScrollView scrollView = (ScrollView) view;
for (int i = 0; i < scrollView.getChildCount(); i++) {
height += scrollView.getChildAt(i).getHeight();
}
}
view.setDrawingCacheEnabled(true);
view.clearFocus();
view.setPressed(false);
boolean willNotCache = view.willNotCacheDrawing();
view.setWillNotCacheDrawing(false);
// Reset the drawing cache background color to fully transparent for the duration of this operation
int color = view.getDrawingCacheBackgroundColor();
view.setDrawingCacheBackgroundColor(Color.WHITE);//截图去黑色背景(透明像素)
if (color != Color.WHITE) {
view.destroyDrawingCache();
}
view.buildDrawingCache();
Bitmap cacheBitmap = view.getDrawingCache();
if (cacheBitmap == null) {
return null;
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawBitmap(cacheBitmap, 0, 0, null);
canvas.save(Canvas.ALL_SAVE_FLAG);
canvas.restore();
cacheBitmap.recycle();
// Restore the view
view.destroyDrawingCache();
view.setWillNotCacheDrawing(willNotCache);
view.setDrawingCacheBackgroundColor(color);
return bitmap;
}