Android项目实战--手机卫士28--读取进程的信息并显示出来

今天呢，我们就继续我们的进程管理啦，昨天我们就讲到了拿到进程数目，以及可用的内存，那么今天，我们就把那些进程一个个的显示出来，

但在做今天这个之前，我先给大家提个醒，我觉得那个程序锁的界面有点不好看，所以就修改了一下，大家到时可以看看源码，我们就先把今天要做的，和那个程序锁的给大家看看先吧

大家可以看到，我们这个界面也是挺简单的，有一个标签把系统的进程和用户的进程给区分开来，所以我们到时在显示在listview的时候就要小心处理了，

首先，我们要先新建一个model类，用来存放那些进程的信息

com.xiaobin.security.domain.TaskInfo

package com.xiaobin.security.ui;import java.util.ArrayList;import java.util.List;import android.annotation.SuppressLint;import android.app.Activity;import android.app.ActivityManager;import android.app.ActivityManager.MemoryInfo;import android.app.ActivityManager.RunningAppProcessInfo;import android.content.Context;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.view.Window;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.CheckBox;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.TextView;import com.xiaobin.security.R;import com.xiaobin.security.domain.TaskInfo;import com.xiaobin.security.engine.TaskInfoProvider;import com.xiaobin.security.utils.TextFormater;public class ProcessManagerActivity extends Activity implements OnClickListener{private static final int LOAD_FINISH = 1;private TextView tv_process_count;private TextView tv_process_memory;private LinearLayout ll_process_load;private ListView lv_process_list;private Button bt_process_clear;private Button bt_process_setting;private ActivityManager activityManager;private List<RunningAppProcessInfo> runningAppProcessInfos;private TaskInfoProvider taskInfoProvider;private List<TaskInfo> taskInfos;private TaskInfoAdapter adapter;@SuppressLint("HandlerLeak")private Handler handler = new Handler(){public void handleMessage(Message msg){switch (msg.what){case LOAD_FINISH:ll_process_load.setVisibility(View.INVISIBLE);adapter = new TaskInfoAdapter();lv_process_list.setAdapter(adapter);break;default:break;}}};@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);// 请求一个自己定义的title，但有一些Android系统是被修改过的，// 所以有可能是无法请求的，如乐Phone或小米的手机，这些系统是被修改过的，// 所以就要判断一下是否请求成功boolean flags = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);setContentView(R.layout.process_manager);if (flags){// 设置自定义的titlegetWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,R.layout.process_manager_title);}tv_process_count = (TextView) findViewById(R.id.tv_process_count);tv_process_memory = (TextView) findViewById(R.id.tv_process_memory);ll_process_load = (LinearLayout) findViewById(R.id.ll_process_load);lv_process_list = (ListView) findViewById(R.id.lv_process_list);bt_process_clear = (Button) findViewById(R.id.bt_process_clear);bt_process_setting = (Button) findViewById(R.id.bt_process_setting);bt_process_clear.setOnClickListener(this);bt_process_setting.setOnClickListener(this);initData();}@Overridepublic void onClick(View v){switch (v.getId()){case R.id.bt_process_clear:break;case R.id.bt_process_setting:break;default:break;}}private void initData(){// 因为这个title是要显示当前进程数目和可用内存的，所以我们每次在这里都调用一下，以更新数据initTitle();ll_process_load.setVisibility(View.VISIBLE);new Thread(new Runnable(){@Overridepublic void run(){taskInfoProvider = new TaskInfoProvider(ProcessManagerActivity.this);taskInfos = taskInfoProvider.getAllTask(runningAppProcessInfos);Message msg = new Message();msg.what = LOAD_FINISH;handler.sendMessage(msg);}}).start();}// 拿到当前运行的进程数目private int getRunningAppCount(){runningAppProcessInfos = activityManager.getRunningAppProcesses();return runningAppProcessInfos.size();}// 拿到系统剩余的内存private String getAvailMemory(){// new一个内存的对象MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();// 拿到现在系统里面的内存信息activityManager.getMemoryInfo(memoryInfo);// 拿到有效的内存空间long size = memoryInfo.availMem;return TextFormater.dataSizeFormat(size);}// 设置title的信息private void initTitle(){tv_process_count.setText("进程数目：" + getRunningAppCount());tv_process_memory.setText("剩余内存：" + getAvailMemory());}// ===========================================================================private class TaskInfoAdapter extends BaseAdapter{private List<TaskInfo> userTaskInfo;private List<TaskInfo> systemTaskInfo;public TaskInfoAdapter(){// 存放用户的应用进程userTaskInfo = new ArrayList<TaskInfo>();// 存放系统的应用进程systemTaskInfo = new ArrayList<TaskInfo>();for (TaskInfo taskInfo : taskInfos){if (taskInfo.isSystemProcess()){systemTaskInfo.add(taskInfo);}else{userTaskInfo.add(taskInfo);}}}@Overridepublic int getCount(){// 加上两个标签，一个是系统标签，一个是用户标签return taskInfos.size() + 2;}@Overridepublic Object getItem(int position){if (position == 0){return 0; // 显示成用户应用的标签}else if (position <= userTaskInfo.size()){return userTaskInfo.get(position - 1); // 用户应用进程的条目}else if (position == userTaskInfo.size() + 1){return position; // 显示成系统进程的标签}else if (position <= taskInfos.size() + 2){// 系统应用进程的条目return systemTaskInfo.get(position - userTaskInfo.size() - 2);}else{return position;}}@Overridepublic long getItemId(int position){return position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent){View view;TaskInfoViews views;TaskInfo taskInfo;if (position == 0){// 显示成用户应用的标签return newTextView("用户进程(" + userTaskInfo.size() + ")");}else if (position <= userTaskInfo.size()){// 用户应用进程的条目taskInfo = userTaskInfo.get(position - 1);}else if (position == userTaskInfo.size() + 1){// 显示成系统进程的标签return newTextView("系统进程(" + systemTaskInfo.size() + ")");}else if (position <= taskInfos.size() + 2){// 系统应用进程的条目taskInfo = systemTaskInfo.get(position - userTaskInfo.size()- 2);}else{taskInfo = new TaskInfo();}if (convertView == null || convertView instanceof TextView){view = View.inflate(ProcessManagerActivity.this,R.layout.process_manager_item, null);views = new TaskInfoViews();views.iv_process_icon = (ImageView) view.findViewById(R.id.iv_process_manager_icon);views.tv_process_name = (TextView) view.findViewById(R.id.tv_process_manager_name);views.tv_process_memory = (TextView) view.findViewById(R.id.tv_process_manager_memory);views.cb_process_state = (CheckBox) view.findViewById(R.id.cb_process_manager_state);view.setTag(views);}else{view = convertView;views = (TaskInfoViews) view.getTag();}views.iv_process_icon.setImageDrawable(taskInfo.getIcon());views.tv_process_name.setText(taskInfo.getName());views.tv_process_memory.setText("占用内存："+ TextFormater.getSizeFromKB(taskInfo.getMemory()));views.cb_process_state.setChecked(taskInfo.isCheck());return view;}private TextView newTextView(String title){TextView tv_title = new TextView(ProcessManagerActivity.this);tv_title.setText(title);return tv_title;}}private class TaskInfoViews{ImageView iv_process_icon;TextView tv_process_name;TextView tv_process_memory;CheckBox cb_process_state;}}

好啦，今天就讲到这里啦，有什么不明白的，可以留言

最后，和大家说一下

为了方便大家的交流，我创建了一个群，这样子大家有什么疑问也可以在群上交流

群号是298440981

今天源码下载