之前一直在Eclipse上使用,今天尝试了在androidstudio上使用该框架(下载地址:https://github.com/chrisbanes/Android-PullToRefresh)
虽然网上也有很多介绍如何使用pulltorefresh的文章,但我还是写下来记录一下.
1.下载压缩文件,解压,会看到如下几个文件:
这里我暂时只使用了library中的文件。
2。导入Androidstudio
(1)修改根目录下的settings.gradle文件:include ‘:app’ —》include ‘:app’,’:lib:pull’
(2)修噶app目录下的build.gradle文件:
dependencies {
compile fileTree(dir: ‘libs’, include: [‘*.jar’])
}
—->
dependencies {
compile fileTree(dir: ‘libs’, include: [‘*.jar’])
// Library
compile project(‘:lib:pull’)
}
3.源码库位置:在根目录下新建一个文件夹lib(名字可自己定义),将解压之后的library文件夹放到lib下文件夹中,然后在library(记住,是源码所在的文件夹)新建文件build.gradle,添加如下内容:
apply plugin: ‘android-library’
android {
compileSdkVersion 19
buildToolsVersion “20.0.0”
sourceSets {
main {
manifest.srcFile ‘AndroidManifest.xml’
java.srcDirs = [‘src’]
resources.srcDirs = [‘src’]
aidl.srcDirs = [‘aidl’]
renderscript.srcDirs = [‘src’]
res.srcDirs = [‘res’]
assets.srcDirs = [‘assets’]
}
}
}
此处 compileSdkVersion 19 和 buildToolsVersion “20.0.0”记得和其他的build文件保持一致。
项目结构如下
以上编译即可。
实例:PullToRefreshDemo
运行效果:
视图结构
代码清单:布局文件:activity_main.xml- <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
- xmlns:tools="http://schemas.android.com/tools"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- android:paddingBottom="@dimen/activity_vertical_margin"
- android:paddingLeft="@dimen/activity_horizontal_margin"
- android:paddingRight="@dimen/activity_horizontal_margin"
- android:paddingTop="@dimen/activity_vertical_margin"
- tools:context=".MainActivity" >
-
- <com.handmark.pulltorefresh.library.PullToRefreshListView
- android:id="@+id/pull_to_refresh_listview"
- android:layout_height="fill_parent"
- android:layout_width="fill_parent" />
-
- </RelativeLayout>
Java源代码文件:MainActivity.java- package com.rainsong.pulltorefreshdemo;
-
- import java.util.Arrays;
- import java.util.LinkedList;
-
- import android.app.Activity;
- import android.os.AsyncTask;
- import android.os.Bundle;
- import android.text.format.DateUtils;
- import android.view.Menu;
- import android.widget.ArrayAdapter;
- import android.widget.ListView;
-
- import com.handmark.pulltorefresh.library.PullToRefreshBase;
- import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;
- import com.handmark.pulltorefresh.library.PullToRefreshListView;
-
- public class MainActivity extends Activity {
- private PullToRefreshListView mPullToRefreshListView;
- private LinkedList<String> mListItems;
- private ArrayAdapter<String> mAdapter;
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
-
-
- mPullToRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_to_refresh_listview);
- mPullToRefreshListView.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);
-
-
- refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(label);
-
-
- new GetDataTask().execute();
- }
- });
-
- ListView actualListView = mPullToRefreshListView.getRefreshableView();
-
- mListItems = new LinkedList<String>();
- mListItems.addAll(Arrays.asList(mStrings));
-
- mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mListItems);
- actualListView.setAdapter(mAdapter);
- }
-
- private class GetDataTask extends AsyncTask<Void, Void, String[]> {
-
- @Override
- protected String[] doInBackground(Void... params) {
-
- try {
- Thread.sleep(4000);
- } catch (InterruptedException e) {
- }
- return mStrings;
- }
- @Override
- protected void onPostExecute(String[] result) {
- mListItems.addFirst("Added after refresh...");
- mAdapter.notifyDataSetChanged();
-
-
- mPullToRefreshListView.onRefreshComplete();
- super.onPostExecute(result);
- }
- }
-
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
-
- getMenuInflater().inflate(R.menu.main, menu);
- return true;
- }
-
- private String[] mStrings = { "John", "Michelle", "Amy", "Kim", "Mary",
- "David", "Sunny", "James", "Maria", "Michael", "Sarah", "Robert",
- "Lily", "William", "Jessica", "Paul", "Crystal", "Peter",
- "Jennifer", "George", "Rachel", "Thomas", "Lisa", "Daniel", "Elizabeth",
- "Kevin" };
- }