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jopen
11年前发布

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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Android Android开发 移动开发 ListView