Android listview 实现分页
第一种:滚动式分页【估计是你想要的那种】
package com.yangguangfu.listview; import android.app.ListActivity; import android.os.Bundle; import android.util.Log; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.BaseAdapter; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.ProgressBar; import android.widget.TextView; import android.widget.AbsListView.OnScrollListener; import android.widget.LinearLayout.LayoutParams; /** * * @author 阿福 * */ public class MainActivity extends ListActivity implements OnScrollListener { private static final String TAG = "MainActivity"; private listViewAdapter adapter = new listViewAdapter(); private int lastItem = 0; /** * 设置布局显示为目标有多大就多大 */ private LayoutParams WClayoutParams =new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT); /** * 设置布局显示目标最大化 */ private LayoutParams FFlayoutParams =new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,LinearLayout.LayoutParams.FILL_PARENT); private ProgressBar progressBar; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.i(TAG, "onCreate(Bundle savedInstanceState)" ); //线性布局 LinearLayout layout = new LinearLayout(this); //设置布局 水平方向 layout.setOrientation(LinearLayout.HORIZONTAL); //进度条 progressBar = new ProgressBar(this); //进度条显示位置 progressBar.setPadding(0, 0, 15, 0); layout.addView(progressBar, WClayoutParams); TextView textView = new TextView(this); textView.setText("加载中..."); textView.setGravity(Gravity.CENTER_VERTICAL); layout.addView(textView, FFlayoutParams); layout.setGravity(Gravity.CENTER); LinearLayout loadingLayout = new LinearLayout(this); loadingLayout.addView(layout, WClayoutParams); loadingLayout.setGravity(Gravity.CENTER); //得到一个ListView用来显示条目 ListView listView = getListView(); //添加到脚页显示 listView.addFooterView(loadingLayout); // registerForContextMenu(listView); // setListAdapter(adapter); listView.setOnScrollListener(this); } public void onScroll(AbsListView v, int firstVisibleItem, int visibleItemCount, int totalItemCount) { lastItem = firstVisibleItem + visibleItemCount - 1; System.out.println("lastItem:" + lastItem); Log.i(TAG, "lastItem:" + lastItem); } public void onScrollStateChanged(AbsListView v, int state) { if (lastItem == adapter.count && state == OnScrollListener.SCROLL_STATE_IDLE) { adapter.count += 10; adapter.notifyDataSetChanged(); Log.i(TAG, "lastItem:" + lastItem); } } /** * 要用用于生成显示数据 * @author 阿福 * */ class listViewAdapter extends BaseAdapter { int count = 10; public int getCount() { Log.i(TAG, "count:" + count); return count; } public Object getItem(int pos) { Log.i(TAG, "pos:" + pos); return pos; } public long getItemId(int pos) { return pos; } public View getView(int pos, View v, ViewGroup p) { TextView view = new TextView(MainActivity.this); view.setText("阿福播放器 " + pos); Log.i(TAG, "entry: " + pos); view.setTextSize(20f); view.setHeight(80); return view; } } }按钮式分页:
package com.yangguangfu.listview; import android.app.ListActivity; import android.os.Bundle; import android.util.Log; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.TextView; import android.widget.LinearLayout.LayoutParams; /** * * @author 阿福 * */ public class ButtonLoadingActivity extends ListActivity { private static final String TAG = "ButtonLoadingActivity"; private listViewAdapter adapter = new listViewAdapter(); /** * 设置布局显示为目标有多大就多大 */ private LayoutParams WClayoutParams =new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT); /** * 设置布局显示目标最大化 */ private LayoutParams FFlayoutParams =new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,LinearLayout.LayoutParams.FILL_PARENT); protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.i(TAG, "onCreate(Bundle savedInstanceState):" ); LinearLayout layout = new LinearLayout(this); layout.setOrientation(LinearLayout.HORIZONTAL); Button button = new Button(this); button.setText("点击加载下五条..."); button.setGravity(Gravity.CENTER_VERTICAL); layout.addView(button,FFlayoutParams); layout.setGravity(Gravity.CENTER); LinearLayout loadingLayout = new LinearLayout(this); loadingLayout.addView(layout,WClayoutParams); loadingLayout.setGravity(Gravity.CENTER); ListView listView = getListView(); listView.addFooterView(loadingLayout); button.setOnClickListener(new Button.OnClickListener() { @Override public void onClick(View v) { adapter.count += 5; Log.i(TAG, "setOnClickListener:" + adapter.count); adapter.notifyDataSetChanged(); } }); setListAdapter(adapter); } public void onScrollStateChanged(AbsListView v, int s) { Log.i(TAG, "onScrollStateChanged(AbsListView v, int s)"); } class listViewAdapter extends BaseAdapter { int count = 10; /* starting amount */ public int getCount() { return count; } public Object getItem(int pos) { return pos; } public long getItemId(int pos) { return pos; } public View getView(int pos, View v, ViewGroup p) { TextView textView = new TextView(ButtonLoadingActivity.this); textView.setHeight(80); textView.setTextSize(20); textView.setText("阿福播放器 " + pos); Log.i(TAG, "getView:pos:" + pos); return textView; } } }
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