下面列出了android.widget.ListView#requestLayout ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Shrink listview height
* @param listView
* @param adapter
*/
public void setListViewHeightBasedOnChildren(ListView listView, AboutAdapter adapter) {
int totalHeight = 0;
for (int i = 0; i < adapter.getCount(); i++) {
View listItem = adapter.getView(i, null, listView);
listItem.measure(0, 0);
totalHeight += listItem.getMeasuredHeight() + 180;
Log.i("htbridge", "listItem.getMeasuredHeight() = " + listItem.getMeasuredHeight() );
}
Log.i("htbridge", "totalHeight = " + totalHeight);
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight + (listView.getDividerHeight() * (adapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null) {
return;
}
int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(), View.MeasureSpec.AT_MOST);
int totalHeight = 0;
View view = null;
for (int i = 0; i < listAdapter.getCount(); i++) {
view = listAdapter.getView(i, view, listView);
if (i == 0) {
view.setLayoutParams(new ViewGroup.LayoutParams(desiredWidth, ViewGroup.LayoutParams.WRAP_CONTENT));
}
view.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);
totalHeight += view.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}
/**** Method for Setting the Height of the ListView dynamically.
**** Hack to fix the issue of not showing all the items of the ListView
**** when placed inside a ScrollView ****/
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter mAdapter = listView.getAdapter();
int totalHeight = 0;
for (int i = 0; i < mAdapter.getCount(); i++) {
View mView = mAdapter.getView(i, null, listView);
mView.measure(
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
totalHeight += mView.getMeasuredHeight();
Log.w("HEIGHT" + i, String.valueOf(totalHeight));
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight
+ (listView.getDividerHeight() * (mAdapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}
/**** Method for Setting the Height of the ListView dynamically.
**** Hack to fix the issue of not showing all the items of the ListView
**** when placed inside a ScrollView ****/
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter mAdapter = listView.getAdapter();
int totalHeight = 0;
for (int i = 0; i < mAdapter.getCount(); i++) {
View mView = mAdapter.getView(i, null, listView);
mView.measure(
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
totalHeight += mView.getMeasuredHeight();
Log.w("HEIGHT" + i, String.valueOf(totalHeight));
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight
+ (listView.getDividerHeight() * (mAdapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}
/**
* * Method for Setting the Height of the ListView dynamically.
* *** Hack to fix the issue of not showing all the items of the ListView
* *** when placed inside a ScrollView ***
*/
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null)
return;
int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(), View.MeasureSpec.UNSPECIFIED);
int totalHeight = 0;
View view = null;
for (int i = 0; i < listAdapter.getCount(); i++) {
view = listAdapter.getView(i, view, listView);
if (i == 0)
view.setLayoutParams(new ViewGroup.LayoutParams(desiredWidth, ViewGroup.LayoutParams.WRAP_CONTENT));
view.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);
totalHeight += view.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}
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);
if(listView.isInLayout() == false){
listView.requestLayout();
}
}
public static boolean setListViewHeightBasedOnItems(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter != null) {
int numberOfItems = listAdapter.getCount();
// Get total height of all items.
int totalItemsHeight = 0;
for (int itemPos = 0; itemPos < numberOfItems; itemPos++) {
View item = listAdapter.getView(itemPos, null, listView);
item.measure(0, 0);
totalItemsHeight += item.getMeasuredHeight();
}
// Get total height of all item dividers.
int totalDividersHeight = listView.getDividerHeight() *
(numberOfItems - 1);
int topPAdding = listView.getPaddingTop();
int bottomPadding = listView.getPaddingBottom();
// Set list height.
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalItemsHeight + totalDividersHeight + topPAdding + bottomPadding;
listView.setLayoutParams(params);
listView.requestLayout();
return true;
} else {
return false;
}
}
public static boolean setListViewHeightBasedOnItems(ListView listView) {
DrawerItemCustomAdapter listAdapter = (DrawerItemCustomAdapter) listView.getAdapter();
if (listAdapter != null) {
int numberOfItems = listAdapter.getCount();
// Get total height of all items.
int totalItemsHeight = 0;
for (int itemPos = 0; itemPos < numberOfItems; itemPos++) {
View item = listAdapter.getView(itemPos, null, listView);
item.measure(0, 0);
totalItemsHeight += item.getMeasuredHeight();
}
// Get total height of all item dividers.
int totalDividersHeight = listView.getDividerHeight() *
(numberOfItems - 1);
// Set list height.
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalItemsHeight + totalDividersHeight;
listView.setLayoutParams(params);
listView.requestLayout();
return true;
} else {
return false;
}
}
/**
* Set ListView height dynamically based on the height of the items.
*
* @param listView to be resized
* @see <a href="http://stackoverflow.com/questions/1778485/android-listview-display-all-available-items-without-scroll-with-static-header">stackoverflow answer</a>
*/
public static void SetListViewHeightBasedOnItems(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null)
throw new RuntimeException("an adapter must be set before list view can be resized");
int numberOfItems = listAdapter.getCount();
// Get total height of all items.
int totalItemsHeight = 0;
for (int itemPos = 0; itemPos < numberOfItems; itemPos++) {
View item = listAdapter.getView(itemPos, null, listView);
item.measure(0, 0);
totalItemsHeight += item.getMeasuredHeight();
}
// Get total height of all item dividers.
int totalDividersHeight = listView.getDividerHeight() * (numberOfItems - 1);
//get vertical padding
int paddingVertical = listView.getPaddingTop() + listView.getPaddingBottom();
// Set list height.
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalItemsHeight + totalDividersHeight + paddingVertical;
listView.setLayoutParams(params);
listView.requestLayout();
}
/**
* Refresh the listview height because the listviews are displayed in a scrollview.
* @param listView the listview.
*/
private void refreshListViewHeight(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
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();
}
/**
* This method adjusts the height of the given listView to match the combined height of all if its
* children and the dividers between list items. This is used to set the height of the mash step
* list such that it does not scroll, since it is encompassed by a ScrollView.
*
* @param listView
* ListView to adjust.
*/
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null) {
return;
}
int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(), View.MeasureSpec.UNSPECIFIED);
int totalHeight = listView.getPaddingTop() + listView.getPaddingBottom();
View view = null;
for (int i = 0; i < listAdapter.getCount(); i++) {
view = listAdapter.getView(i, view, listView);
view.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);
if (i == 0) {
view.setLayoutParams(new ViewGroup.LayoutParams(desiredWidth, ViewGroup.LayoutParams.WRAP_CONTENT));
//totalHeight += view.getMeasuredHeight();
}
totalHeight += view.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}
public void clearChecks() {
ListView permsList = (ListView) findViewById(R.id.permissions_list);
permsList.clearChoices();
permsList.requestLayout();
for (int i = 0; i < checked.length; i ++) {
checked[i] = false;
}
}
public void setHeightofListViewBasedOnContent(ListView listView) {
ListAdapter mAdapter = listView.getAdapter();
int totalHeight = 0;
for (int i = 0; i < mAdapter.getCount(); i++) {
totalHeight += getResources().getDimension(R.dimen.item_list_height);
Log.w("HEIGHT" + i, String.valueOf(totalHeight));
}
totalHeight = totalHeight + (listView.getDividerHeight() * (mAdapter.getCount() - 1)) + listView.getPaddingTop();
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight;
listView.setLayoutParams(params);
listView.requestLayout();
}
/**
* *
* Method for Setting the Height of the ListView dynamically. Hack to fix
* the issue of not showing all the items of the ListView when placed inside
* a ScrollView
* **
*/
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null)
return;
int desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(), MeasureSpec.UNSPECIFIED);
int totalHeight = 0;
View view = null;
for (int i = 0; i < listAdapter.getCount(); i++) {
long numOfLines = 1;
view = listAdapter.getView(i, view, listView);
if (i == 0) {
view.setLayoutParams(new LayoutParams(desiredWidth, LayoutParams.WRAP_CONTENT));
}
view.measure(desiredWidth, MeasureSpec.UNSPECIFIED);
TextView file = (TextView) view.findViewById(R.id.name);
TextView percentage = (TextView) view.findViewById(R.id.percentage);
ProgressBar progressBar1 = (ProgressBar) view.findViewById(R.id.progressBar1);
if (view.getMeasuredWidth() > desiredWidth) {
double viewWidthLong = Double.valueOf(view.getMeasuredWidth());
double desiredWidthLong = Double.valueOf(desiredWidth);
numOfLines = Math.round(viewWidthLong / desiredWidthLong) + 1;
totalHeight += (file.getMeasuredHeight() * numOfLines) + percentage.getMeasuredHeight() + progressBar1.getMeasuredHeight();
} else {
totalHeight += view.getMeasuredHeight();
}
}
LayoutParams params = listView.getLayoutParams();
params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}