From a29d094b3ad88fe6543b0bd3259c7590d3164589 Mon Sep 17 00:00:00 2001 From: jiqimaogou Date: Mon, 24 Feb 2014 15:47:39 +0800 Subject: [PATCH 1/2] Add HListFragment and change the project name --- demo/.project | 2 +- library/.project | 2 +- .../android/library/widget/HListFragment.java | 348 ++++++++++++++++++ 3 files changed, 350 insertions(+), 2 deletions(-) create mode 100644 library/src/it/sephiroth/android/library/widget/HListFragment.java diff --git a/demo/.project b/demo/.project index 09756f4..8f27c46 100644 --- a/demo/.project +++ b/demo/.project @@ -1,6 +1,6 @@ - Demo + HorizontalVariableListViewDemo diff --git a/library/.project b/library/.project index 8c1ab26..7a358b7 100644 --- a/library/.project +++ b/library/.project @@ -1,6 +1,6 @@ - library + HorizontalVariableListView diff --git a/library/src/it/sephiroth/android/library/widget/HListFragment.java b/library/src/it/sephiroth/android/library/widget/HListFragment.java new file mode 100644 index 0000000..e7a0f1d --- /dev/null +++ b/library/src/it/sephiroth/android/library/widget/HListFragment.java @@ -0,0 +1,348 @@ +package it.sephiroth.android.library.widget; + +import android.content.Context; +import android.os.Bundle; +import android.os.Handler; +import android.support.v4.app.Fragment; +import android.view.Gravity; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.view.animation.AnimationUtils; +import android.widget.FrameLayout; +import android.widget.LinearLayout; +import android.widget.ListAdapter; +import android.widget.ProgressBar; +import android.widget.TextView; + +public class HListFragment extends Fragment { + static final int INTERNAL_EMPTY_ID = 0x00ff0001; + static final int INTERNAL_PROGRESS_CONTAINER_ID = 0x00ff0002; + static final int INTERNAL_LIST_CONTAINER_ID = 0x00ff0003; + + final private Handler mHandler = new Handler(); + + final private Runnable mRequestFocus = new Runnable() { + public void run() { + mList.focusableViewAvailable(mList); + } + }; + + final private AdapterView.OnItemClickListener mOnClickListener = + new AdapterView.OnItemClickListener() { + public void onItemClick(AdapterView parent, View v, int position, long id) { + onListItemClick((HListView) parent, v, position, id); + } + }; + + ListAdapter mAdapter; + HListView mList; + View mEmptyView; + TextView mStandardEmptyView; + View mProgressContainer; + View mListContainer; + CharSequence mEmptyText; + boolean mListShown; + + public HListFragment() { + } + + /** + * Provide default implementation to return a simple list view. Subclasses + * can override to replace with their own layout. If doing so, the + * returned view hierarchy must have a HListView whose id + * is {@link android.R.id#list android.R.id.list} and can optionally + * have a sibling view id {@link android.R.id#empty android.R.id.empty} + * that is to be shown when the list is empty. + * + *

If you are overriding this method with your own custom content, + * consider including the standard layout {@link android.R.layout#list_content} + * in your layout file, so that you continue to retain all of the standard + * behavior of ListFragment. In particular, this is currently the only + * way to have the built-in indeterminant progress state be shown. + */ + @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, + Bundle savedInstanceState) { + final Context context = getActivity(); + + FrameLayout root = new FrameLayout(context); + + // ------------------------------------------------------------------ + + LinearLayout pframe = new LinearLayout(context); + pframe.setId(INTERNAL_PROGRESS_CONTAINER_ID); + pframe.setOrientation(LinearLayout.VERTICAL); + pframe.setVisibility(View.GONE); + pframe.setGravity(Gravity.CENTER); + + ProgressBar progress = new ProgressBar(context, null, android.R.attr.progressBarStyleLarge); + pframe.addView(progress, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, + ViewGroup.LayoutParams.WRAP_CONTENT)); + + root.addView(pframe, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, + ViewGroup.LayoutParams.FILL_PARENT)); + + // ------------------------------------------------------------------ + + FrameLayout lframe = new FrameLayout(context); + lframe.setId(INTERNAL_LIST_CONTAINER_ID); + + TextView tv = new TextView(getActivity()); + tv.setId(INTERNAL_EMPTY_ID); + tv.setGravity(Gravity.CENTER); + lframe.addView(tv, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, + ViewGroup.LayoutParams.FILL_PARENT)); + + HListView lv = new HListView(getActivity()); + lv.setId(android.R.id.list); + lv.setDrawSelectorOnTop(false); + lframe.addView(lv, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, + ViewGroup.LayoutParams.FILL_PARENT)); + + root.addView(lframe, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, + ViewGroup.LayoutParams.FILL_PARENT)); + + // ------------------------------------------------------------------ + + root.setLayoutParams(new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, + ViewGroup.LayoutParams.FILL_PARENT)); + + return root; + } + + /** + * Attach to list view once the view hierarchy has been created. + */ + @Override public void onViewCreated(View view, Bundle savedInstanceState) { + super.onViewCreated(view, savedInstanceState); + ensureList(); + } + + /** + * Detach from list view. + */ + @Override public void onDestroyView() { + mHandler.removeCallbacks(mRequestFocus); + mList = null; + mListShown = false; + mEmptyView = mProgressContainer = mListContainer = null; + mStandardEmptyView = null; + super.onDestroyView(); + } + + /** + * This method will be called when an item in the list is selected. + * Subclasses should override. Subclasses can call + * getListView().getItemAtPosition(position) if they need to access the + * data associated with the selected item. + * + * @param l The HListView where the click happened + * @param v The view that was clicked within the HListView + * @param position The position of the view in the list + * @param id The row id of the item that was clicked + */ + public void onListItemClick(HListView l, View v, int position, long id) { + } + + /** + * Provide the cursor for the list view. + */ + public void setListAdapter(ListAdapter adapter) { + boolean hadAdapter = mAdapter != null; + mAdapter = adapter; + if (mList != null) { + mList.setAdapter(adapter); + if (!mListShown + && !hadAdapter) { + // The list was hidden, and previously didn't have an + // adapter. It is now time to show it. + setListShown(true, getView().getWindowToken() != null); + } + } + } + + /** + * Set the currently selected list item to the specified + * position with the adapter's data + * + * @param position + */ + public void setSelection(int position) { + ensureList(); + mList.setSelection(position); + } + + /** + * Get the position of the currently selected list item. + */ + public int getSelectedItemPosition() { + ensureList(); + return mList.getSelectedItemPosition(); + } + + /** + * Get the cursor row ID of the currently selected list item. + */ + public long getSelectedItemId() { + ensureList(); + return mList.getSelectedItemId(); + } + + /** + * Get the activity's list view widget. + */ + public HListView getListView() { + ensureList(); + return mList; + } + + /** + * The default content for a ListFragment has a TextView that can + * be shown when the list is empty. If you would like to have it + * shown, call this method to supply the text it should use. + */ + public void setEmptyText(CharSequence text) { + ensureList(); + if (mStandardEmptyView == null) { + throw new IllegalStateException("Can't be used with a custom content view"); + } + mStandardEmptyView.setText(text); + if (mEmptyText == null) { + mList.setEmptyView(mStandardEmptyView); + } + mEmptyText = text; + } + + /** + * Control whether the list is being displayed. You can make it not + * displayed if you are waiting for the initial data to show in it. During + * this time an indeterminant progress indicator will be shown instead. + * + *

Applications do not normally need to use this themselves. The default + * behavior of ListFragment is to start with the list not being shown, only + * showing it once an adapter is given with {@link #setListAdapter(ListAdapter)}. + * If the list at that point had not been shown, when it does get shown + * it will be do without the user ever seeing the hidden state. + * + * @param shown If true, the list view is shown; if false, the progress + * indicator. The initial value is true. + */ + public void setListShown(boolean shown) { + setListShown(shown, true); + } + + /** + * Like {@link #setListShown(boolean)}, but no animation is used when + * transitioning from the previous state. + */ + public void setListShownNoAnimation(boolean shown) { + setListShown(shown, false); + } + + /** + * Control whether the list is being displayed. You can make it not + * displayed if you are waiting for the initial data to show in it. During + * this time an indeterminant progress indicator will be shown instead. + * + * @param shown If true, the list view is shown; if false, the progress + * indicator. The initial value is true. + * @param animate If true, an animation will be used to transition to the + * new state. + */ + private void setListShown(boolean shown, boolean animate) { + ensureList(); + if (mProgressContainer == null) { + throw new IllegalStateException("Can't be used with a custom content view"); + } + if (mListShown == shown) { + return; + } + mListShown = shown; + if (shown) { + if (animate) { + mProgressContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(), + android.R.anim.fade_out)); + mListContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(), + android.R.anim.fade_in)); + } else { + mProgressContainer.clearAnimation(); + mListContainer.clearAnimation(); + } + mProgressContainer.setVisibility(View.GONE); + mListContainer.setVisibility(View.VISIBLE); + } else { + if (animate) { + mProgressContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(), + android.R.anim.fade_in)); + mListContainer.startAnimation(AnimationUtils.loadAnimation(getActivity(), + android.R.anim.fade_out)); + } else { + mProgressContainer.clearAnimation(); + mListContainer.clearAnimation(); + } + mProgressContainer.setVisibility(View.VISIBLE); + mListContainer.setVisibility(View.GONE); + } + } + + /** + * Get the ListAdapter associated with this activity's HListView. + */ + public ListAdapter getListAdapter() { + return mAdapter; + } + + private void ensureList() { + if (mList != null) { + return; + } + View root = getView(); + if (root == null) { + throw new IllegalStateException("Content view not yet created"); + } + if (root instanceof HListView) { + mList = (HListView) root; + } else { + mStandardEmptyView = (TextView) root.findViewById(INTERNAL_EMPTY_ID); + if (mStandardEmptyView == null) { + mEmptyView = root.findViewById(android.R.id.empty); + } else { + mStandardEmptyView.setVisibility(View.GONE); + } + mProgressContainer = root.findViewById(INTERNAL_PROGRESS_CONTAINER_ID); + mListContainer = root.findViewById(INTERNAL_LIST_CONTAINER_ID); + View rawListView = root.findViewById(android.R.id.list); + if (!(rawListView instanceof HListView)) { + if (rawListView == null) { + throw new RuntimeException( + "Your content must have a HListView whose id attribute is " + + "'android.R.id.list'"); + } + throw new RuntimeException( + "Content has view with id attribute 'android.R.id.list' " + + "that is not a HListView class"); + } + mList = (HListView) rawListView; + if (mEmptyView != null) { + mList.setEmptyView(mEmptyView); + } else if (mEmptyText != null) { + mStandardEmptyView.setText(mEmptyText); + mList.setEmptyView(mStandardEmptyView); + } + } + mListShown = true; + mList.setOnItemClickListener(mOnClickListener); + if (mAdapter != null) { + ListAdapter adapter = mAdapter; + mAdapter = null; + setListAdapter(adapter); + } else { + // We are starting without an adapter, so assume we won't + // have our data right away and start with the progress indicator. + if (mProgressContainer != null) { + setListShown(false, false); + } + } + mHandler.post(mRequestFocus); + } +} \ No newline at end of file From 8bb28487cadd4a1da43e93ec12311893e3813c1f Mon Sep 17 00:00:00 2001 From: jiqimaogou Date: Mon, 24 Feb 2014 16:40:39 +0800 Subject: [PATCH 2/2] more Convenient to configure hlistview --- .../android/library/widget/HListFragment.java | 116 ++++++++++-------- 1 file changed, 65 insertions(+), 51 deletions(-) diff --git a/library/src/it/sephiroth/android/library/widget/HListFragment.java b/library/src/it/sephiroth/android/library/widget/HListFragment.java index e7a0f1d..f3d9bf3 100644 --- a/library/src/it/sephiroth/android/library/widget/HListFragment.java +++ b/library/src/it/sephiroth/android/library/widget/HListFragment.java @@ -28,12 +28,11 @@ public void run() { } }; - final private AdapterView.OnItemClickListener mOnClickListener = - new AdapterView.OnItemClickListener() { - public void onItemClick(AdapterView parent, View v, int position, long id) { - onListItemClick((HListView) parent, v, position, id); - } - }; + final private AdapterView.OnItemClickListener mOnClickListener = new AdapterView.OnItemClickListener() { + public void onItemClick(AdapterView parent, View v, int position, long id) { + onListItemClick((HListView) parent, v, position, id); + } + }; ListAdapter mAdapter; HListView mList; @@ -48,21 +47,22 @@ public HListFragment() { } /** - * Provide default implementation to return a simple list view. Subclasses - * can override to replace with their own layout. If doing so, the - * returned view hierarchy must have a HListView whose id - * is {@link android.R.id#list android.R.id.list} and can optionally - * have a sibling view id {@link android.R.id#empty android.R.id.empty} - * that is to be shown when the list is empty. + * Provide default implementation to return a simple list view. Subclasses + * can override to replace with their own layout. If doing so, the returned + * view hierarchy must have a HListView whose id is + * {@link android.R.id#list android.R.id.list} and can optionally have a + * sibling view id {@link android.R.id#empty android.R.id.empty} that is to + * be shown when the list is empty. * - *

If you are overriding this method with your own custom content, - * consider including the standard layout {@link android.R.layout#list_content} - * in your layout file, so that you continue to retain all of the standard - * behavior of ListFragment. In particular, this is currently the only - * way to have the built-in indeterminant progress state be shown. + *

+ * If you are overriding this method with your own custom content, consider + * including the standard layout {@link android.R.layout#list_content} in + * your layout file, so that you continue to retain all of the standard + * behavior of ListFragment. In particular, this is currently the only way + * to have the built-in indeterminant progress state be shown. */ - @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, - Bundle savedInstanceState) { + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { final Context context = getActivity(); FrameLayout root = new FrameLayout(context); @@ -113,7 +113,8 @@ public HListFragment() { /** * Attach to list view once the view hierarchy has been created. */ - @Override public void onViewCreated(View view, Bundle savedInstanceState) { + @Override + public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); ensureList(); } @@ -121,7 +122,8 @@ public HListFragment() { /** * Detach from list view. */ - @Override public void onDestroyView() { + @Override + public void onDestroyView() { mHandler.removeCallbacks(mRequestFocus); mList = null; mListShown = false; @@ -133,13 +135,17 @@ public HListFragment() { /** * This method will be called when an item in the list is selected. * Subclasses should override. Subclasses can call - * getListView().getItemAtPosition(position) if they need to access the - * data associated with the selected item. - * - * @param l The HListView where the click happened - * @param v The view that was clicked within the HListView - * @param position The position of the view in the list - * @param id The row id of the item that was clicked + * getListView().getItemAtPosition(position) if they need to access the data + * associated with the selected item. + * + * @param l + * The HListView where the click happened + * @param v + * The view that was clicked within the HListView + * @param position + * The position of the view in the list + * @param id + * The row id of the item that was clicked */ public void onListItemClick(HListView l, View v, int position, long id) { } @@ -152,19 +158,18 @@ public void setListAdapter(ListAdapter adapter) { mAdapter = adapter; if (mList != null) { mList.setAdapter(adapter); - if (!mListShown - && !hadAdapter) { + if (!mListShown && !hadAdapter) { // The list was hidden, and previously didn't have an - // adapter. It is now time to show it. + // adapter. It is now time to show it. setListShown(true, getView().getWindowToken() != null); } } } /** - * Set the currently selected list item to the specified - * position with the adapter's data - * + * Set the currently selected list item to the specified position with the + * adapter's data + * * @param position */ public void setSelection(int position) { @@ -197,9 +202,9 @@ public HListView getListView() { } /** - * The default content for a ListFragment has a TextView that can - * be shown when the list is empty. If you would like to have it - * shown, call this method to supply the text it should use. + * The default content for a ListFragment has a TextView that can be shown + * when the list is empty. If you would like to have it shown, call this + * method to supply the text it should use. */ public void setEmptyText(CharSequence text) { ensureList(); @@ -214,18 +219,21 @@ public void setEmptyText(CharSequence text) { } /** - * Control whether the list is being displayed. You can make it not - * displayed if you are waiting for the initial data to show in it. During + * Control whether the list is being displayed. You can make it not + * displayed if you are waiting for the initial data to show in it. During * this time an indeterminant progress indicator will be shown instead. * - *

Applications do not normally need to use this themselves. The default + *

+ * Applications do not normally need to use this themselves. The default * behavior of ListFragment is to start with the list not being shown, only - * showing it once an adapter is given with {@link #setListAdapter(ListAdapter)}. - * If the list at that point had not been shown, when it does get shown - * it will be do without the user ever seeing the hidden state. + * showing it once an adapter is given with + * {@link #setListAdapter(ListAdapter)}. If the list at that point had not + * been shown, when it does get shown it will be do without the user ever + * seeing the hidden state. * - * @param shown If true, the list view is shown; if false, the progress - * indicator. The initial value is true. + * @param shown + * If true, the list view is shown; if false, the progress + * indicator. The initial value is true. */ public void setListShown(boolean shown) { setListShown(shown, true); @@ -240,14 +248,16 @@ public void setListShownNoAnimation(boolean shown) { } /** - * Control whether the list is being displayed. You can make it not - * displayed if you are waiting for the initial data to show in it. During + * Control whether the list is being displayed. You can make it not + * displayed if you are waiting for the initial data to show in it. During * this time an indeterminant progress indicator will be shown instead. * - * @param shown If true, the list view is shown; if false, the progress - * indicator. The initial value is true. - * @param animate If true, an animation will be used to transition to the - * new state. + * @param shown + * If true, the list view is shown; if false, the progress + * indicator. The initial value is true. + * @param animate + * If true, an animation will be used to transition to the new + * state. */ private void setListShown(boolean shown, boolean animate) { ensureList(); @@ -343,6 +353,10 @@ private void ensureList() { setListShown(false, false); } } + configure(mList); mHandler.post(mRequestFocus); } + + protected void configure(HListView hListView) { + } } \ No newline at end of file