Android项目实战-手机卫士31-登记广播事件自动杀死进程

Android项目实战--手机卫士31--注册广播事件自动杀死进程

昨天，我们就完成了对应用权限列表的读取，而且还修复了一些小bug，那么今天我们要完成的就是我们的进程设置那一块啦，这里我们做得比较简单，就只是完成两个设置而已

一个就是是否显示系统进程，第二个就是是否在锁屏的时候进行清理一些进程，大家完全可以做得更完善一些的，比如说添加一个进程的白名单啦，这样子，我们一些常用的就用的进程就不会被杀死啊，这类的功能，因为这些都比较容易，所以我就不写了，大家有兴趣的可以完善一下，那么我们现在就来看一下我们今天要做的效果

上面的那一张就是我们的进程设置里面的界面啦，就只有简单的两个设置，我们今天就来完成一下它

对于这些设置信息，我把它保存到我们的SharedPreferences里面的，这样子，下次用户进来，就会先读取原来的信息的

首先，我们就先把界面做一下，这个界面非常的简单，我就不把布局文件粘出来啦，

com.xiaobin.security.ui.ProcessSettingActivity

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.content.Intent;import android.content.SharedPreferences;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.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.AdapterView.OnItemLongClickListener;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.MyApplication;import com.xiaobin.security.R;import com.xiaobin.security.domain.TaskInfo;import com.xiaobin.security.engine.TaskInfoProvider;import com.xiaobin.security.ui.view.MyToast;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 CheckBox cb_process_state;private ActivityManager activityManager;private List<RunningAppProcessInfo> runningAppProcessInfos;private TaskInfoProvider taskInfoProvider;private List<TaskInfo> taskInfos;private TaskInfoAdapter adapter;private List<TaskInfo> userTaskInfos;private List<TaskInfo> systemTaskInfos;private String totalMemory;private String availMemory;private SharedPreferences sp;@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);tv_process_memory.setText(availMemory + "/" + totalMemory);break;default:break;}}};@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);sp = getSharedPreferences("config", Context.MODE_PRIVATE);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();lv_process_list.setOnItemClickListener(new OnItemClickListener(){@Overridepublic void onItemClick(AdapterView<?> parent, View view,int position, long id){// adapter里面的getItem返回的值Object obj = lv_process_list.getItemAtPosition(position);if (obj instanceof TaskInfo){cb_process_state = (CheckBox) view.findViewById(R.id.cb_process_manager_state);TaskInfo taskInfo = (TaskInfo) obj;// 设置成不能杀死自己的进程，还有一些系统进程if ("com.xiaobin.security".equals(taskInfo.getPackageName())|| "system".equals(taskInfo.getPackageName())|| "android.process.media".equals(taskInfo.getPackageName())){cb_process_state.setVisibility(View.INVISIBLE);return;}if (taskInfo.isCheck()){taskInfo.setCheck(false);cb_process_state.setChecked(false);}else{taskInfo.setCheck(true);cb_process_state.setChecked(true);}}}});lv_process_list.setOnItemLongClickListener(new OnItemLongClickListener(){@Overridepublic boolean onItemLongClick(AdapterView<?> parent, View view,int position, long id){// adapter里面的getItem返回的值Object obj = lv_process_list.getItemAtPosition(position);if (obj instanceof TaskInfo){TaskInfo taskInfo = (TaskInfo) obj;//拿到我们自己定义的application对象MyApplication myApplication = (MyApplication) getApplication();//把TaskInfo对象设置进去myApplication.setTaskInfo(taskInfo);Intent intent = new Intent(ProcessManagerActivity.this, AppDetialActivity.class);startActivity(intent);}return false;}});}@Overridepublic void onClick(View v){switch (v.getId()){case R.id.bt_process_clear:killTask();break;case R.id.bt_process_setting:Intent intent = new Intent(this, ProcessSettingActivity.class);startActivityForResult(intent, 0);break;default:break;}}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data){super.onActivityResult(requestCode, resultCode, data);//刷新数据if(resultCode == 200){initData();}}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);// 计算总内存大小，因为不可以直接获取到总内存的，所以只能计算// 计算方法就是，全部进程占用的内存，再加上可用的内存，但这样计算是不准确的long total = 0;for (TaskInfo taskInfo : taskInfos){total += taskInfo.getMemory();}// 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;// 因为我们拿到的进程占用的内存是以KB为单位的，所以这里要乘以1024，也就是左移10位啦total = total << 10;// 加上可用的内存，就可以得到总内存啦total += size;totalMemory = TextFormater.dataSizeFormat(total);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(){availMemory = getAvailMemory();tv_process_count.setText("进程数目：" + getRunningAppCount());tv_process_memory.setText("剩余内存：" + availMemory);}// 一键清理的函数private void killTask(){int total = 0;int memorySize = 0;for (TaskInfo taskInfo : systemTaskInfos){if (taskInfo.isCheck()){// 杀死进程activityManager.killBackgroundProcesses(taskInfo.getPackageName());total++;memorySize += taskInfo.getMemory();taskInfos.remove(taskInfo);}}for (TaskInfo taskInfo : userTaskInfos){if (taskInfo.isCheck()){activityManager.killBackgroundProcesses(taskInfo.getPackageName());total++;memorySize += taskInfo.getMemory();taskInfos.remove(taskInfo);}}/* * Toast.makeText( this, "已经杀死了" + total + "个进程！释放了" + * TextFormater.getSizeFromKB(memorySize) + "空间", * Toast.LENGTH_SHORT).show(); */// 显示成我们自己定义的ToastMyToast.showToast(this, R.drawable.notification, "已经杀死了" + total+ "个进程！释放了" + TextFormater.getSizeFromKB(memorySize) + "空间");// 重新加载界面adapter = new TaskInfoAdapter();lv_process_list.setAdapter(adapter);}// ===========================================================================private class TaskInfoAdapter extends BaseAdapter{public TaskInfoAdapter(){// 存放用户的应用进程userTaskInfos = new ArrayList<TaskInfo>();// 存放系统的应用进程systemTaskInfos = new ArrayList<TaskInfo>();for (TaskInfo taskInfo : taskInfos){if (taskInfo.isSystemProcess()){systemTaskInfos.add(taskInfo);}else{userTaskInfos.add(taskInfo);}}}@Overridepublic int getCount(){boolean showSystemProcess = sp.getBoolean("showSystemProcess", false);if(showSystemProcess){// 加上两个标签，一个是系统标签，一个是用户标签return taskInfos.size() + 2;}else{return userTaskInfos.size() + 1;}}@Overridepublic Object getItem(int position){if (position == 0){return 0; // 显示成用户应用的标签}else if (position <= userTaskInfos.size()){return userTaskInfos.get(position - 1); // 用户应用进程的条目}else if (position == userTaskInfos.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 systemTaskInfos.get(position - userTaskInfos.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(" + userTaskInfos.size() + ")");}else if (position <= userTaskInfos.size()){// 用户应用进程的条目taskInfo = userTaskInfos.get(position - 1);}else if (position == userTaskInfos.size() + 1){// 显示成系统进程的标签return newTextView("系统进程(" + systemTaskInfos.size() + ")");}else if (position <= taskInfos.size() + 2){// 系统应用进程的条目taskInfo = systemTaskInfos.get(position - userTaskInfos.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()));// 设置成不能杀死自己的进程，还有一些系统进程if ("com.xiaobin.security".equals(taskInfo.getPackageName())|| "system".equals(taskInfo.getPackageName())|| "android.process.media".equals(taskInfo.getPackageName())){views.cb_process_state.setVisibility(View.INVISIBLE);}else{views.cb_process_state.setVisibility(View.VISIBLE);}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;}}

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