Android obtains global process information and memory usage by process

Android obtains all process information and obtains the memory used by the process.

Package Zhangphil.process;import Java.util.list;import Android.os.bundle;import android.os.debug.memoryinfo;import Android.widget.textview;import Android.app.activity;import Android.app.activitymanager;import Android.app.activitymanager.runningappprocessinfo;import Android.content.context;public class MainActivity extends Activity {@Overrideprotected void onCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); TextView TV = (TextView) Findviewbyid (R.id.textview); Activitymanager Activitymanager = (activitymanager) getsystemservice (Context.activity_service); String all = "", try {list<runningappprocessinfo> List = activitymanager.getrunningappprocesses (); for (int i = 0; I < list.size (); i++) {Runningappprocessinfo p = list.get (i); String info = "First" + (i + 1) + "process \ n"; info + = "Name:" + p.processname + "\ n"; info + = "ID:" + p.pid + "\ n"; info + = "User id:" + P.uid + "\ n";//Memory used by the process, Memoryinfo Unit is kbint[] Memorypid = new int[] {P.piD}; memoryinfo[] Memoryinfo = Activitymanager.getprocessmemoryinfo (memorypid);//Process memory usage, Unit: mbint memsize = memoryInfo[0 ].dalvikprivatedirty; String count = "", if (Memsize < 1024x768) Count = memsize + "KB"; elsecount = memsize/1024 + "MB"; info + = "Memory Used (DALVIKPR Ivatedirty): "+ count +" \ n "; info + =" Important level: "+ p.importance +" \ n "; all = all + info +" \ n ";}} catch (Exception e) {e.printstacktrace ();} Tv.settext (All);}}

You need to add permissions in Androidmanifest.xml:

<uses-permission android:name= "Android.permission.GET_TASKS"/>

Activity_main.xml files required by Mainactivity.java:

  <scrollview  xmlns:android= "http://schemas.android.com/apk/res/android"        android:layout_width= "Match_ Parent "        android:layout_height=" match_parent ">         <textview        android:id=" @+id/textview "        Android:layout_width= "Match_parent"        android:layout_height= "match_parent"/>           </ScrollView>



Android obtains global process information and memory usage by process