/*** 自定义列表头视图* * @author Change* */
public class ListHeadView extends LinearLayout implements OnClickListener {private OnHeadControlListener colLis;private CheckBox c_all;private TextView field1, field2, field3, field4;private Button controlBtn;private final int count = 4;public ListHeadView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);inflateView(context);}public ListHeadView(Context context, AttributeSet attrs) {super(context, attrs);inflateView(context);}public ListHeadView(Context context) {super(context);inflateView(context);}private void initView() {c_all = (CheckBox) this.findViewById(R.id.c_all);field1 = (TextView) findViewById(R.id.field1);field2 = (TextView) findViewById(R.id.field2);field3 = (TextView) findViewById(R.id.field3);field4 = (TextView) findViewById(R.id.field4);controlBtn = (Button) findViewById(R.id.controlBtn);controlBtn.setOnClickListener(this);c_all.setOnCheckedChangeListener(new OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {colLis.onCheckAllChange(isChecked);// 调用1
            }});}private void inflateView(Context context) {View.inflate(context, R.layout.list_head, this);initView();}public void setTexts(String[] texts) {if(texts.length>=count){field1.setText(texts[0]);field2.setText(texts[1]);field3.setText(texts[2]);field4.setText(texts[3]);}else{throw new ArrayIndexOutOfBoundsException("you don't have tomany fields!");}}public void setButtonResource(int resid){controlBtn.setBackgroundResource(resid);}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.controlBtn:colLis.onClickRightBtn();// 调用2break;default:break;}}/*** 回调接口，提供按钮和复选框的监听* * @author Change* */public interface OnHeadControlListener {/*** 点击右边按钮后触发*/public void onClickRightBtn();/*** 复选框状态改变后触发* * @param isChecked*/public void onCheckAllChange(boolean isChecked);}/*** 设置监听器* * @param colLis*/public void setOnHeadControlListener(OnHeadControlListener colLis) {this.colLis = colLis;}}

ListHeadView headView = new ListHeadView(context);headView.setOnHeadControlListener(new OnHeadControlListener() {@Overridepublic void onClickRightBtn() {Toast.makeText(context, "点击按钮", Toast.LENGTH_SHORT).show();}@Overridepublic void onCheckAllChange(boolean isChecked) {Toast.makeText(context, "选择变化为"+isChecked, Toast.LENGTH_SHORT).show();}});

/*** apk搜索器* * @author Change* */
public abstract class ApkFileSearcher {private String keyword;// 搜索关键字private static final String TAG = ApkFileSearcher.class.getSimpleName();public ApkFileSearcher(String keyword) {this.keyword = keyword;}/*** 从列表中获得关键字匹配的新列表* * @param allApps* @return*/public List<AppsBean> onSearchIn(List<AppsBean> allApps) {List<AppsBean> results = new ArrayList<AppsBean>();for (AppsBean app : allApps) {if (app.appName.contains(keyword)|| app.pkgName.contains(keyword)) {results.add(app);}}allApps.clear();allApps.addAll(results);return allApps;}/*** 抽象方法：回调搜索结果* * @param result*/public abstract void onSearchFinished(List<AppsBean> result);/*** 本地异步搜索* * @param allApps*/public void startAsyncLocalSearch(final List<AppsBean> allApps) {new AsyncTask<Void, Void, List<AppsBean>>() {@Overrideprotected List<AppsBean> doInBackground(Void... params) {return onSearchIn(allApps);}@Overrideprotected void onPostExecute(List<AppsBean> result) {onSearchFinished(result);// 调用，传入结果
            };}.execute();}

final ApkFileSearcher searcher = new ApkFileSearcher(keyword) {@Overridepublic void onSearchFinished(List<AppsBean> result) {//在界面对结果进行处理。如传入并构建列表适配器
                }};