可以根据应用名称和安装时间进行排序,工程具体代码可以在我的GitHub上查看,链接见文末,效果图:
核心代码:
package com.zms.launcher;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.PixelFormat;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.Toast;
public class Main extends Activity {
static DbOperation db = null;
static List<App> appInfo = null;
PackageManager packageManager = null;
int orderFlag = 0; // 排序方式标志,0-默认排序,1-名字排序,2-时间排序
static boolean isEqual = false;
List<ResolveInfo> apps = null;
List<ResolveInfo> apps2 = null;
private static final String TAG = "ScrollLayoutTest";
private ScrollLayout mScrollLayout;
private static final float APP_PAGE_SIZE = 36.0f;
private Context mContext;
int upCount;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
mContext = this;
setContentView(R.layout.main);
mScrollLayout = (ScrollLayout) findViewById(R.id.ScrollLayoutTest);
initViews();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
menu.add(0, 1, 1, "● 默认排序[当前]");
menu.add(0, 2, 1, "○ 名称排序");
menu.add(0, 3, 1, "○ 时间排序");
menu.add(0, 4, 1, " 关于应用");
menu.add(0, 5, 1, " 更新桌面");
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case 1: // 默认排序[当前]
break;
case 2: // 名称排序
Intent intent1 = new Intent(this, DeskByName.class);
startActivity(intent1);
break;
case 3: // 按安装时间排序
Intent intent2 = new Intent(this, DeskByTime.class);
startActivity(intent2);
break;
case 4:// 关于
Intent intent3 = new Intent(this, About.class);
startActivity(intent3);
break;
case 5:// 更新桌面
onCreate(null);
break;
default:
}
return super.onOptionsItemSelected(item);
}
public void initViews() {
packageManager = getPackageManager();
final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
List<HashMap<String, Object>> items = new ArrayList<HashMap<String, Object>>();
// get all apps
apps = packageManager.queryIntentActivities(mainIntent, 0);
for (ResolveInfo pi : apps) {
HashMap<String, Object> map = new HashMap<String, Object>();
PackageManager manager = this.getPackageManager();
map.put("appIcon", pi.loadIcon(packageManager));
map.put("appName", pi.loadLabel(packageManager).toString());
map.put("appPack", pi.activityInfo.packageName);
try {
map.put("appTime", Long.toString(manager.getPackageInfo(
pi.activityInfo.packageName, 0).firstInstallTime));
} catch (NameNotFoundException e) {
e.printStackTrace();
}
items.add(map);
}
// ToDB
db = new DbOperation(this);
long countlong = db.getCount(); // 获取数据库中记录数目
int countint = (int) countlong;
upCount = items.size();// +++++++++++++++++++++++++++++++++++++++upCount
if (countint == items.size()) {
isEqual = true;
// 若记录数目与当前items.size()相等,则不插入应用信息,只插入时间
for (int m = 0; m < items.size(); m++) {
// 插入时间:
String appPack2 = (String) items.get(m).get("appPack");
try {
PackageManager manager = this.getPackageManager();
String appTime2 = Long.toString(manager.getPackageInfo(
appPack2, 0).firstInstallTime);
db.insertTime(appTime2, appPack2);
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} else {
// 若不等,则先清空表数据,然后再插入应用信息,然后插入时间
db.deleteTable();
for (int i = 0; i < items.size(); i++) {
String appName = (String) items.get(i).get("appName");
String appPack = (String) items.get(i).get("appPack");
String appTime = (String) items.get(i).get("Time");
App appInfo = new App(appName, appPack, appTime);
DbOperation db = new DbOperation(this);
db.insertApp(appInfo);
// 插入时间:
String appPack2 = (String) items.get(i).get("appPack");
try {
PackageManager manager = this.getPackageManager();
String appTime2 = Long.toString(manager.getPackageInfo(
appPack2, 0).firstInstallTime);
db.insertTime(appTime2, appPack2);
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
// 读取数据库信息
db = new DbOperation(this);
if (orderFlag == 0) {
appInfo = db.query("appTable");
} else if (orderFlag == 1) {
appInfo = db.queryByName("appTable");
} else if (orderFlag == 2) {
appInfo = db.queryByTime("appTable");
}
final int PageCount = (int) Math.ceil(apps.size() / APP_PAGE_SIZE);
Log.e(TAG, "size:" + apps.size() + " page:" + PageCount);
for (int i = 0; i < PageCount; i++) {
GridView appPage = new GridView(this);
this.registerForContextMenu(appPage);
appPage.setAdapter(new AppAdapter(this, appInfo, i, apps, items));
appPage.setNumColumns(6);
appPage.setOnItemClickListener(listener);
mScrollLayout.addView(appPage);
}
}
public OnItemClickListener listener = new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
GridView listView = (GridView) parent;
App appInfo = (App) (listView.getItemAtPosition(position));
String packName = appInfo.getPack();
Intent mainIntent = mContext.getPackageManager()
.getLaunchIntentForPackage(packName);
mainIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
try {
mContext.startActivity(mainIntent);
} catch (ActivityNotFoundException noFound) {
Toast.makeText(mContext, "未发现该应用!", Toast.LENGTH_SHORT).show();
}
}
};
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
menu.setHeaderTitle("操作");
menu.add(0, 1, Menu.NONE, "更名");
menu.add(0, 2, Menu.NONE, "卸载");
}
public boolean onContextItemSelected(MenuItem item) {
// 得到当前被选中的item信息
AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo) item
.getMenuInfo();
final int a = menuInfo.position;
switch (item.getItemId()) {
case 1:
final EditText e = new EditText(this);
new AlertDialog.Builder(this).setTitle("更名")
// .setIcon(R.drawable.logo2)
.setView(e)
.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int i) {
int b1 = mScrollLayout.getCurScreen();
int num1 = b1 * 36 + a;
String appName = appInfo.get(num1)
.getName();
System.out.println(appName);
String str = e.getText().toString();
System.out.println(str);
db.changeName(str, appName);
// 更新界面
onCreate(null);
}
}).setNegativeButton("取消", null).show();
break;
case 2:
int b1 = mScrollLayout.getCurScreen();
int num1 = b1 * 36 + a;
String appPack = appInfo.get(num1).getPack();
Uri uri = Uri.parse("package:" + appPack);
System.out.println(appPack);
Intent intent = new Intent(Intent.ACTION_DELETE, uri);
intent.setData(uri);// 设置获取到的URI
db.deleteApp(appPack);
startActivity(intent);
// break;
default:
// 更新+延时
try {
Thread.currentThread().sleep(300);
onCreate(null);
} catch (InterruptedException e22) {
e22.printStackTrace();
}
onCreate(null);
return super.onContextItemSelected(item);
}
return true;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
if (keyCode == KeyEvent.KEYCODE_BACK) {
finish();
return true;
}
return super.onKeyDown(keyCode, event);
}
class AppIntentReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
onCreate(null);
}
}
private void registerIntentReceivers() {
IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
filter.addDataScheme("package");
registerReceiver(new AppIntentReceiver(), filter);
}
public static Bitmap drawableToBitmap(Drawable drawable) {
// 取 drawable 的长宽
int w = drawable.getIntrinsicWidth();
int h = drawable.getIntrinsicHeight();
// 取 drawable 的颜色格式
Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
: Bitmap.Config.RGB_565;
// 建立对应 bitmap
Bitmap bitmap = Bitmap.createBitmap(w, h, config);
// 建立对应 bitmap 的画布
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, w, h);
// 把 drawable 内容画到画布中
drawable.draw(canvas);
return bitmap;
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
android.os.Process.killProcess(android.os.Process.myPid());
super.onDestroy();
// this.finish();
}
}
转载请注明出处:周木水的CSDN博客 http://blog.csdn.net/zhoumushui
我的GitHub:周木水的GitHub https://github.com/zhoumushui
时间: 2024-10-19 14:41:40