package com.example.helloprocess;import java.text.SimpleDateFormat;import java.util.Date;import java.util.List;import android.app.Activity;import android.app.ActivityManager;import android.app.ActivityManager.RunningAppProcessInfo;import android.content.Context;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TextView;public class HelloProcessActivity extends Activity{    private TextView mTextView = null;    private TextView mTime = null;    private Button mButton = null;    private String mText = "";    @Override    protected void onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_hello_process);        mTextView = (TextView) findViewById(R.id.text);        mTime = (TextView) findViewById(R.id.time);        mButton = (Button) findViewById(R.id.updateBtn);        mButton.setOnClickListener(new View.OnClickListener()        {            @Override            public void onClick(View v)            {                updateProcessInfo();            }        });    }    private void updateProcessInfo()    {        mText = "";        mTextView.setText(mText);        // 获取ActivityManager        ActivityManager activityManager = (ActivityManager) this                .getSystemService(Context.ACTIVITY_SERVICE);        // 更新时间        updateTimeInfo();        // 获取进程信息***************************************************        List
    
      infos = activityManager                .getRunningAppProcesses();        for (RunningAppProcessInfo info : infos)        {            String name = info.processName;            mText = mTextView.getText().toString();            mText += name + "\n\n";            mTextView.setText(mText);        }    }    private void updateTimeInfo()    {        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 设置日期格式        String time = df.format(new Date());        System.out.println(time);// new Date()为获取当前系统时间        mTime.setText(time);    }}