Android - github控件 PullToRefresh
转载至：鸿洋 http://blog.csdn.net/lmj623565791/article/details/38238749
1、属性
xmlns:ptr="http://schemas.android.com/apk/res-auto"
ptr:ptrDrawable="@drawable/ic_refresh" 设置图标
ptr:ptrMode="both" [both,disabled禁止下拉刷新,pullFromStart仅下拉刷新,pullFromEnd仅上拉刷新]
ptr:ptrAnimationStyle="flip" [flip翻转动画,rotate旋转动画]
ptrRefreshableViewBackground 设置整个mPullRefreshListView的背景色
ptrHeaderBackground 设置下拉Header或者上拉Footer的背景色
ptrHeaderTextColor 用于设置Header与Footer中文本的颜色
ptrHeaderSubTextColor 用于设置Header与Footer中上次刷新时间的颜色
ptrShowIndicato 如果为true会在mPullRefreshListView中出现icon，右上角和右下角
ptrHeaderTextAppearance
ptrSubHeaderTextAppearance 分别设置拉Header或者上拉Footer中字体的类型颜色等等。
ptrRotateDrawableWhilePulling 当动画设置为rotate时，下拉是是否旋转。
ptrScrollingWhileRefreshingEnabled 刷新的时候，是否允许ListView或GridView滚动。觉得为true比较好。
ptrListViewExtrasEnabled 决定了Header，Footer以何种方式加入mPullRefreshListView，true为headView方式加入，就是滚动时刷新头部会一起滚动。
2、回调接口
onRefreshListener
onRefreshListener2 下拉与上拉更新
onPullDownToRefresh，onPullUpToRefresh
OnLastItemVisibleListener
3、方法
1）设置最后更新显示信息
instance.getLoadingLayoutProxy().setLastUpdateLabel(String)
2）自定义下拉指示器文本：
ILoadingLayout startLabels = mPullRefreshListView.getLoadingLayoutProxy(true, false);
startLabels.setPullLabel("你可劲拉，拉..."); // 刚下拉时，显示的提示
startLabels.setRefreshingLabel("好嘞，正在刷新..."); // 刷新时
startLabels.setReleaseLabel("你敢放，我就敢刷新..."); // 下来达到一定距离时，显示的提示
ILoadingLayout endLabels = mPullRefreshListView.getLoadingLayoutProxy( false, true);
endLabels.setPullLabel("你可劲拉，拉2..."); // 刚下拉时，显示的提示
endLabels.setRefreshingLabel("好嘞，正在刷新2..."); // 刷新时
endLabels.setReleaseLabel("你敢放，我就敢刷新2..."); // 下来达到一定距离时，显示的提示
3） Add Sound Event Listener
SoundPullEventListener<ListView> soundListener = new SoundPullEventListener<ListView>(this);
soundListener.addSoundEvent(State.PULL_TO_REFRESH, R.raw.pull_event);
soundListener.addSoundEvent(State.RESET, R.raw.reset_sound);
soundListener.addSoundEvent(State.REFRESHING, R.raw.refreshing_sound);
mPullRefreshListView.setOnPullEventListener(soundListener);
4、完整代码
1) activity_ptr_list.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<!-- The PullToRefreshListView replaces a standard ListView widget. -->
<com.handmark.pulltorefresh.library.PullToRefreshListView
android:id="@+id/pull_refresh_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:cacheColorHint="#00000000"
android:divider="#19000000"
android:dividerHeight="4dp"
android:fadingEdge="none"
android:fastScrollEnabled="false"
android:footerDividersEnabled="true"
android:headerDividersEnabled="true"
android:smoothScrollbar="true" />
</LinearLayout>
2) PullToRefreshListActivity.java
public final class PullToRefreshListActivity extends ListActivity {
static final int MENU_MANUAL_REFRESH = 0;
static final int MENU_DISABLE_SCROLL = 1;
static final int MENU_SET_MODE = 2;
static final int MENU_DEMO = 3;
private LinkedList<String> mListItems;
private PullToRefreshListView mPullRefreshListView;
private ArrayAdapter<String> mAdapter;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ptr_list);
mPullRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);
// Set a listener to be invoked when the list should be refreshed.
mPullRefreshListView.setOnRefreshListener(new OnRefreshListener<ListView>() {
@Override
public void onRefresh(PullToRefreshBase<ListView> refreshView) {
String label = DateUtils.formatDateTime(getApplicationContext(), System.currentTimeMillis(),
DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_ABBREV_ALL);
// Update the LastUpdatedLabel
refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(label);
// Do work to refresh the list here.
new GetDataTask().execute();
}
});
// Add an end-of-list listener
mPullRefreshListView.setOnLastItemVisibleListener(new OnLastItemVisibleListener() {
@Override
public void onLastItemVisible() {
Toast.makeText(PullToRefreshListActivity.this, "End of List!", Toast.LENGTH_SHORT).show();
}
});
ListView actualListView = mPullRefreshListView.getRefreshableView();
// Need to use the Actual ListView when registering for Context Menu
registerForContextMenu(actualListView);
mListItems = new LinkedList<String>();
mListItems.addAll(Arrays.asList(mStrings));
mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mListItems);
/**
* Add Sound Event Listener
*/
SoundPullEventListener<ListView> soundListener = new SoundPullEventListener<ListView>(this);
soundListener.addSoundEvent(State.PULL_TO_REFRESH, R.raw.pull_event);
soundListener.addSoundEvent(State.RESET, R.raw.reset_sound);
soundListener.addSoundEvent(State.REFRESHING, R.raw.refreshing_sound);
mPullRefreshListView.setOnPullEventListener(soundListener);
// You can also just use setListAdapter(mAdapter) or
// mPullRefreshListView.setAdapter(mAdapter)
actualListView.setAdapter(mAdapter);
}
private class GetDataTask extends AsyncTask<Void, Void, String[]> {
@Override
protected String[] doInBackground(Void... params) {
// Simulates a background job.
try {
Thread.sleep(4000);
} catch (InterruptedException e) {
}
return mStrings;
}
@Override
protected void onPostExecute(String[] result) {
mListItems.addFirst("Added after refresh...");
mAdapter.notifyDataSetChanged();
// Call onRefreshComplete when the list has been refreshed.
mPullRefreshListView.onRefreshComplete();
super.onPostExecute(result);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, MENU_MANUAL_REFRESH, 0, "Manual Refresh");
menu.add(0, MENU_DISABLE_SCROLL, 1,
mPullRefreshListView.isScrollingWhileRefreshingEnabled() ? "Disable Scrolling while Refreshing"
: "Enable Scrolling while Refreshing");
menu.add(0, MENU_SET_MODE, 0, mPullRefreshListView.getMode() == Mode.BOTH ? "Change to MODE_PULL_DOWN"
: "Change to MODE_PULL_BOTH");
menu.add(0, MENU_DEMO, 0, "Demo");
return super.onCreateOptionsMenu(menu);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
menu.setHeaderTitle("Item: " + getListView().getItemAtPosition(info.position));
menu.add("Item 1");
menu.add("Item 2");
menu.add("Item 3");
menu.add("Item 4");
super.onCreateContextMenu(menu, v, menuInfo);
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
MenuItem disableItem = menu.findItem(MENU_DISABLE_SCROLL);
disableItem
.setTitle(mPullRefreshListView.isScrollingWhileRefreshingEnabled() ? "Disable Scrolling while Refreshing"
: "Enable Scrolling while Refreshing");
MenuItem setModeItem = menu.findItem(MENU_SET_MODE);
setModeItem.setTitle(mPullRefreshListView.getMode() == Mode.BOTH ? "Change to MODE_FROM_START"
: "Change to MODE_PULL_BOTH");
return super.onPrepareOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_MANUAL_REFRESH:
new GetDataTask().execute();
mPullRefreshListView.setRefreshing(false);
break;
case MENU_DISABLE_SCROLL:
mPullRefreshListView.setScrollingWhileRefreshingEnabled(!mPullRefreshListView
.isScrollingWhileRefreshingEnabled());
break;
case MENU_SET_MODE:
mPullRefreshListView.setMode(mPullRefreshListView.getMode() == Mode.BOTH ? Mode.PULL_FROM_START
: Mode.BOTH);
break;
case MENU_DEMO:
mPullRefreshListView.demo();
break;
}
return super.onOptionsItemSelected(item);
}
private String[] mStrings = { "Abbaye de Belloc", "Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi",
"Acorn", "Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale", "Aisy Cendre",
"Allgauer Emmentaler", "Abbaye de Belloc", "Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi",
"Acorn", "Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale", "Aisy Cendre",
"Allgauer Emmentaler" };
}
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