Android 资源管理器源代码

package com.figo.TaskAssistant; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.math.BigDecimal; import java.text.DecimalFormat; import java.util.Timer; import java.util.TimerTask; import com.figo.TaskAssistant.R; import android.app.Activity; import android.app.ActivityManager; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.BatteryManager; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.os.StatFs; import android.text.format.Formatter; import android.util.Log; import android.widget.ImageView; import android.widget.ScrollView; import android.widget.TextView; public class SystemActivity extends Activity { TextView mTextViewCpuinfo = null; TextView mTextViewCpufre = null; TextView mTextViewMeminfo = null; TextView mTextViewSDinfo = null; TextView mTextViewBatteryinfo = null; TextView mTextViewMemuse = null; ScrollView mScrollView = null; String text = ""; ActivityManager am = null; double total_memory = 0, avail_memory = 0; private Handler handler = new Handler() { public void handleMessage(Message msg) { mTextViewMeminfo.setText(getResources().getString( R.string.memory_total) + " " + SystemActivity.this.getTotalMemory() + "MB,\n " + getResources().getString(R.string.memory_available) + " " + SystemActivity.this.getAvailMemory() + "MB"); mTextViewMemuse .setText(getResources().getString(R.string.memory_usage) + " " + ((int) ((1 - (SystemActivity.this .getAvailMemory() / SystemActivity.this .getTotalMemory())) * 100)) + "%"); mTextViewCpuinfo.setText(SystemActivity.this.getCPUInfo()); mTextViewCpufre.setText(SystemActivity.this.getCPUFre()); mTextViewSDinfo.setText(SystemActivity.this.showSize()); super.handleMessage(msg); } }; private TimerTask timerTask = new TimerTask() { public void run() { Message message = new Message(); handler.sendMessage(message); } }; private double getTotalMemory() { String str1, str2; str1 = "/proc/meminfo"; String[] arrayOfString; int initial_memory; try { FileReader localFileReader = new FileReader(str1); BufferedReader localBufferedReader = new BufferedReader( localFileReader, 8192); str2 = localBufferedReader.readLine(); arrayOfString = str2.split("\\s+"); for (String num : arrayOfString) { Log.i(str2, num + "\t"); } initial_memory = Integer.valueOf(arrayOfString[1]).intValue(); BigDecimal bd = new BigDecimal(initial_memory / 1024.0); total_memory = bd.setScale(2, BigDecimal.ROUND_HALF_UP) .doubleValue(); localBufferedReader.close(); } catch (IOException e) { } return total_memory; } private String getCPUInfo() { String str1, str2, str3; str1 = "/proc/cpuinfo"; str2 = ""; str3 = ""; String[] arrayOfString; try { FileReader localFileReader = new FileReader(str1); BufferedReader localBufferedReader = new BufferedReader( localFileReader, 8192); str2 = localBufferedReader.readLine(); str3 = localBufferedReader.readLine(); // arrayOfString = str2.split("\\s+"); // for (String num : arrayOfString) { // Log.i(str2, num + "\t"); // } localBufferedReader.close(); } catch (IOException e) { } return (getResources().getString(R.string.cpu_processor) + " " + str2 .substring(12)); } private String getCPUFre() { String str1, str2, str3; str1 = "/proc/cpuinfo"; str2 = ""; str3 = ""; String[] arrayOfString; try { FileReader localFileReader = new FileReader(str1); BufferedReader localBufferedReader = new BufferedReader( localFileReader, 8192); str2 = localBufferedReader.readLine(); str3 = localBufferedReader.readLine(); // arrayOfString = str2.split("\\s+"); // for (String num : arrayOfString) { // Log.i(str2, num + "\t"); // } localBufferedReader.close(); } catch (IOException e) { } return (getResources().getString(R.string.cpu_frequency) + " " + str3.substring(11) + "MHz"); } private double getAvailMemory() { am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); ActivityManager.MemoryInfo menInfo = new ActivityManager.MemoryInfo(); am.getMemoryInfo(menInfo); BigDecimal bd_avail = new BigDecimal((menInfo.availMem >> 10) / 1024.0); avail_memory = bd_avail.setScale(2, BigDecimal.ROUND_HALF_UP) .doubleValue(); return avail_memory; } private String showSize() { if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { File path = Environment.getExternalStorageDirectory(); StatFs statFs = new StatFs(path.getPath()); long blockSize = statFs.getBlockSize(); long totalBlocks = statFs.getBlockCount(); long availableBlocks = statFs.getAvailableBlocks(); text = getResources().getString(R.string.storage_total) + " " + Formatter.formatFileSize(SystemActivity.this, totalBlocks * blockSize) + ",\n "; text += getResources().getString(R.string.storage_available) + " " + Formatter.formatFileSize(SystemActivity.this, availableBlocks * blockSize); } else if (Environment.getExternalStorageState().equals( Environment.MEDIA_REMOVED)) { text = getResources().getString(R.string.storage_msg); } return text; } public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.performance_main); mTextViewCpuinfo = (TextView) findViewById(R.id.cpuinfoTextView); mTextViewCpufre = (TextView) findViewById(R.id.cpufreTextView); mTextViewMeminfo = (TextView) findViewById(R.id.meminfoTextView); mTextViewMemuse = (TextView) findViewById(R.id.memuseTextView); mTextViewSDinfo = (TextView) findViewById(R.id.sdinfoTextView); mTextViewBatteryinfo = (TextView) findViewById(R.id.batteryinfoTextView); mScrollView = (ScrollView) findViewById(R.id.ScrollView01); registerReceiver(batteryChangedReceiver, new IntentFilter( Intent.ACTION_BATTERY_CHANGED)); Timer timer = new Timer(); timer.schedule(timerTask, 0, 2000); } private BroadcastReceiver batteryChangedReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { // TODO Auto-generated method stub if (Intent.ACTION_BATTERY_CHANGED.equals(intent.getAction())) { int level = intent.getIntExtra("level", 0); int scale = intent.getIntExtra("scale", 100); int status = intent.getIntExtra("status", 0); int plugged = intent.getIntExtra("plugged", 0); String statusString = ""; String acString = ""; switch (status) { case BatteryManager.BATTERY_STATUS_UNKNOWN: statusString = getResources().getString( R.string.battery_status_unknown); break; case BatteryManager.BATTERY_STATUS_CHARGING: statusString = getResources().getString( R.string.battery_status_charging); break; case BatteryManager.BATTERY_STATUS_DISCHARGING: statusString = getResources().getString( R.string.battery_status_discharging); break; case BatteryManager.BATTERY_STATUS_NOT_CHARGING: statusString = getResources().getString( R.string.battery_status_notcharging); break; case BatteryManager.BATTERY_STATUS_FULL: statusString = getResources().getString( R.string.battrey_status_full); break; } switch (plugged) { case BatteryManager.BATTERY_PLUGGED_AC: acString = getResources().getString( R.string.battery_plugged_ac); break;