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Refactor memory measurement

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Move out all the memory measurement to a separate class that can cache
all of its data through orientation changes.

Tweak the display to make it draw large squares for the legend instead
of a 1x1 square. Add padding to the percentage bar chart.

Change-Id: I4cd5bc4ba31a422a55740e8f58e5e571cf9866a5
This commit is contained in:
Kenny Root
2010-12-13 16:23:57 -08:00
parent c88a7ff1ef
commit e4330890d6
6 changed files with 610 additions and 284 deletions
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4
res/layout/preference_memoryusage.xml
View File

@@ -22,5 +22,7 @@
android:gravity="center_vertical"
android:id="@+id/percentage_bar_chart"
android:paddingRight="?android:attr/scrollbarSize"
android:textAppearance="?android:attr/textAppearanceMedium">
android:paddingTop="6dip"
android:paddingBottom="6dip"
emptyColor="@color/memory_avail">
</com.android.settings.deviceinfo.PercentageBarChart>

5
res/values/attrs.xml
View File

@@ -42,4 +42,9 @@
<!-- Radius of the shadow. -->
<attr name="android:shadowRadius" />
</declare-styleable>
<declare-styleable name="PercentageBarChart">
<!-- Background color -->
<attr name="emptyColor" format="color" />
</declare-styleable>
</resources>

9
res/xml/device_info_memory.xml
View File

@@ -37,22 +37,19 @@
<PreferenceCategory android:title="@string/internal_memory">
<com.android.settings.deviceinfo.UsageBarPreference
android:key="memory_internal_chart" />
android:key="memory_internal_chart"/>
<Preference android:key="memory_internal_size"
android:title="@string/memory_size"
android:summary="00"/>
android:summary="@string/memory_calculating_size"/>
<Preference android:key="memory_internal_media"
android:icon="@color/memory_media_usage"
android:title="@string/memory_media_usage"
android:summary="@string/memory_calculating_size"/>
<Preference android:key="memory_internal_apps"
android:icon="@color/memory_apps_usage"
android:title="@string/memory_apps_usage"
android:summary="@string/memory_calculating_size"/>
<Preference android:key="memory_internal_avail"
android:icon="@color/memory_avail"
android:title="@string/memory_available"
android:summary="00"/>
android:summary="@string/memory_calculating_size"/>
</PreferenceCategory>
</PreferenceScreen>

428
src/com/android/settings/deviceinfo/Memory.java
View File

@@ -16,38 +16,32 @@
package com.android.settings.deviceinfo;
import com.android.internal.app.IMediaContainerService;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.deviceinfo.MemoryMeasurement.MeasurementReceiver;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.content.DialogInterface.OnCancelListener;
import android.content.pm.ApplicationInfo;
import android.content.pm.IPackageStatsObserver;
import android.content.pm.PackageManager;
import android.content.pm.PackageStats;
import android.content.res.Resources;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.RectShape;
import android.graphics.drawable.shapes.RoundRectShape;
import android.hardware.UsbManager;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.StatFs;
import android.os.storage.IMountService;
import android.os.storage.StorageEventListener;
import android.os.storage.StorageManager;
@@ -58,11 +52,10 @@ import android.text.format.Formatter;
import android.util.Log;
import android.widget.Toast;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
public class Memory extends SettingsPreferenceFragment implements OnCancelListener {
public class Memory extends SettingsPreferenceFragment implements OnCancelListener,
MeasurementReceiver {
private static final String TAG = "Memory";
private static final boolean localLOGV = false;
@@ -110,13 +103,6 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
private int mInternalAppsColor;
private int mInternalUsedColor;
// Internal memory fields
private long mInternalTotalSize;
private long mInternalUsedSize;
private long mInternalMediaSize;
private long mInternalAppsSize;
private boolean mMeasured = false;
boolean mSdMountToggleAdded = true;
// Access using getMountService()
@@ -125,241 +111,46 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
private StorageManager mStorageManager = null;
// Updates the memory usage bar graph.
private static final int MSG_UI_UPDATE_APPROXIMATE = 1;
private static final int MSG_UI_UPDATE_INTERNAL_APPROXIMATE = 1;
// Updates the memory usage bar graph.
private static final int MSG_UI_UPDATE_EXACT = 2;
private static final int MSG_UI_UPDATE_INTERNAL_EXACT = 2;
// Updates the memory usage stats for external.
private static final int MSG_UI_UPDATE_EXTERNAL_APPROXIMATE = 3;
private Handler mUpdateHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_UI_UPDATE_APPROXIMATE:
updateUiApproximate();
case MSG_UI_UPDATE_INTERNAL_APPROXIMATE: {
Bundle bundle = msg.getData();
final long totalSize = bundle.getLong(MemoryMeasurement.TOTAL_SIZE);
final long availSize = bundle.getLong(MemoryMeasurement.AVAIL_SIZE);
updateUiApproximate(totalSize, availSize);
break;
case MSG_UI_UPDATE_EXACT:
updateUiExact();
mMeasured = true;
}
case MSG_UI_UPDATE_INTERNAL_EXACT: {
Bundle bundle = msg.getData();
final long totalSize = bundle.getLong(MemoryMeasurement.TOTAL_SIZE);
final long availSize = bundle.getLong(MemoryMeasurement.AVAIL_SIZE);
final long mediaUsed = bundle.getLong(MemoryMeasurement.MEDIA_USED);
final long appsUsed = bundle.getLong(MemoryMeasurement.APPS_USED);
updateUiExact(totalSize, availSize, mediaUsed, appsUsed);
break;
}
case MSG_UI_UPDATE_EXTERNAL_APPROXIMATE: {
Bundle bundle = msg.getData();
final long totalSize = bundle.getLong(MemoryMeasurement.TOTAL_SIZE);
final long availSize = bundle.getLong(MemoryMeasurement.AVAIL_SIZE);
updateExternalStorage(totalSize, availSize);
break;
}
}
}
};
private static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
private static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
DEFAULT_CONTAINER_PACKAGE, "com.android.defcontainer.DefaultContainerService");
class MemoryMeasurementHandler extends Handler {
public static final int MSG_MEASURE_ALL = 1;
public static final int MSG_CONNECTED = 2;
public static final int MSG_DISCONNECTED = 3;
private List<String> mPendingApps = new ArrayList<String>();
private volatile boolean mBound = false;
private long mAppsSize = 0;
final private ServiceConnection mDefContainerConn = new ServiceConnection() {
public void onServiceConnected(ComponentName name, IBinder service) {
mBound = true;
IMediaContainerService imcs = IMediaContainerService.Stub.asInterface(service);
mMeasurementHandler.sendMessage(mMeasurementHandler.obtainMessage(
MemoryMeasurementHandler.MSG_CONNECTED, imcs));
}
public void onServiceDisconnected(ComponentName name) {
mBound = false;
}
};
MemoryMeasurementHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_MEASURE_ALL: {
updateExternalStorage();
updateApproximateInternalStorage();
Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
getActivity().bindService(service, mDefContainerConn, Context.BIND_AUTO_CREATE);
mUpdateHandler.sendEmptyMessage(MSG_UI_UPDATE_APPROXIMATE);
break;
}
case MSG_CONNECTED: {
IMediaContainerService imcs = (IMediaContainerService) msg.obj;
updateExactInternalStorage(imcs);
}
}
}
public void cleanUp() {
if (mBound) {
getActivity().unbindService(mDefContainerConn);
}
}
public void queuePackageMeasurementLocked(String packageName) {
mPendingApps.add(packageName);
}
public void requestQueuedMeasurementsLocked() {
final Activity activity = getActivity();
if (activity == null) {
return;
}
final PackageManager pm = activity.getPackageManager();
if (pm == null) {
return;
}
final int N = mPendingApps.size();
for (int i = 0; i < N; i++) {
pm.getPackageSizeInfo(mPendingApps.get(i), mStatsObserver);
}
}
final IPackageStatsObserver.Stub mStatsObserver = new IPackageStatsObserver.Stub() {
public void onGetStatsCompleted(PackageStats stats, boolean succeeded) {
if (succeeded) {
mAppsSize += stats.codeSize + stats.dataSize;
}
synchronized (mPendingApps) {
mPendingApps.remove(stats.packageName);
if (mPendingApps.size() == 0) {
mInternalAppsSize = mAppsSize;
mUpdateHandler.sendEmptyMessage(MSG_UI_UPDATE_EXACT);
}
}
}
};
private void updateApproximateInternalStorage() {
final File dataPath = Environment.getDataDirectory();
final StatFs stat = new StatFs(dataPath.getPath());
final long blockSize = stat.getBlockSize();
final long totalBlocks = stat.getBlockCount();
final long availableBlocks = stat.getAvailableBlocks();
final long totalSize = totalBlocks * blockSize;
final long availSize = availableBlocks * blockSize;
mInternalSize.setSummary(formatSize(totalSize));
mInternalAvail.setSummary(formatSize(availSize));
mInternalTotalSize = totalSize;
mInternalUsedSize = totalSize - availSize;
}
private void updateExactInternalStorage(IMediaContainerService imcs) {
long mediaSize;
try {
// TODO get these directories from somewhere
mediaSize = imcs.calculateDirectorySize("/data/media");
} catch (Exception e) {
Log.i(TAG, "Could not read memory from default container service");
return;
}
mInternalMediaSize = mediaSize;
// We have to get installd to measure the package sizes.
PackageManager pm = getPackageManager();
List<ApplicationInfo> apps = pm
.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES
| PackageManager.GET_DISABLED_COMPONENTS);
if (apps != null) {
synchronized (mPendingApps) {
for (int i = 0; i < apps.size(); i++) {
final ApplicationInfo info = apps.get(i);
queuePackageMeasurementLocked(info.packageName);
}
requestQueuedMeasurementsLocked();
}
}
}
private void updateExternalStorage() {
if (Environment.isExternalStorageEmulated()) {
return;
}
String status = Environment.getExternalStorageState();
String readOnly = "";
if (status.equals(Environment.MEDIA_MOUNTED_READ_ONLY)) {
status = Environment.MEDIA_MOUNTED;
readOnly = mRes.getString(R.string.read_only);
}
if (status.equals(Environment.MEDIA_MOUNTED)) {
if (!Environment.isExternalStorageRemovable()) {
// This device has built-in storage that is not removable.
// There is no reason for the user to unmount it.
if (mSdMountToggleAdded) {
mSdMountPreferenceGroup.removePreference(mSdMountToggle);
mSdMountToggleAdded = false;
}
}
try {
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long totalBlocks = stat.getBlockCount();
long availableBlocks = stat.getAvailableBlocks();
mSdSize.setSummary(formatSize(totalBlocks * blockSize));
mSdAvail.setSummary(formatSize(availableBlocks * blockSize) + readOnly);
mSdMountToggle.setEnabled(true);
mSdMountToggle.setTitle(mRes.getString(R.string.sd_eject));
mSdMountToggle.setSummary(mRes.getString(R.string.sd_eject_summary));
} catch (IllegalArgumentException e) {
// this can occur if the SD card is removed, but we haven't
// received the
// ACTION_MEDIA_REMOVED Intent yet.
status = Environment.MEDIA_REMOVED;
}
} else {
mSdSize.setSummary(mRes.getString(R.string.sd_unavailable));
mSdAvail.setSummary(mRes.getString(R.string.sd_unavailable));
if (!Environment.isExternalStorageRemovable()) {
if (status.equals(Environment.MEDIA_UNMOUNTED)) {
if (!mSdMountToggleAdded) {
mSdMountPreferenceGroup.addPreference(mSdMountToggle);
mSdMountToggleAdded = true;
}
}
}
if (status.equals(Environment.MEDIA_UNMOUNTED) ||
status.equals(Environment.MEDIA_NOFS) ||
status.equals(Environment.MEDIA_UNMOUNTABLE) ) {
mSdMountToggle.setEnabled(true);
mSdMountToggle.setTitle(mRes.getString(R.string.sd_mount));
mSdMountToggle.setSummary(mRes.getString(R.string.sd_mount_summary));
} else {
mSdMountToggle.setEnabled(false);
mSdMountToggle.setTitle(mRes.getString(R.string.sd_mount));
mSdMountToggle.setSummary(mRes.getString(R.string.sd_insert_summary));
}
}
}
}
private MemoryMeasurementHandler mMeasurementHandler;
private MemoryMeasurement mMeasurement;
@Override
public void onCreate(Bundle icicle) {
@@ -394,12 +185,27 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
mInternalAppsColor = mRes.getColor(R.color.memory_apps_usage);
mInternalUsedColor = mRes.getColor(R.color.memory_used);
float[] radius = new float[] {
5f, 5f, 5f, 5f, 5f, 5f, 5f, 5f
};
RoundRectShape shape1 = new RoundRectShape(radius, null, null);
ShapeDrawable mediaShape = new ShapeDrawable(shape1);
mediaShape.setIntrinsicWidth(32);
mediaShape.setIntrinsicHeight(32);
mediaShape.getPaint().setColor(mInternalMediaColor);
mInternalMediaUsage.setIcon(mediaShape);
ShapeDrawable appsShape = new ShapeDrawable(shape1);
appsShape.setIntrinsicWidth(32);
appsShape.setIntrinsicHeight(32);
appsShape.getPaint().setColor(mInternalAppsColor);
mInternalAppsUsage.setIcon(appsShape);
mInternalUsageChart = (UsageBarPreference) findPreference(MEMORY_INTERNAL_CHART);
// Start the thread that will measure the disk usage.
final HandlerThread t = new HandlerThread("MeasurementHandler");
t.start();
mMeasurementHandler = new MemoryMeasurementHandler(t.getLooper());
mMeasurement = MemoryMeasurement.getInstance(getActivity());
mMeasurement.setReceiver(this);
}
@Override
@@ -411,9 +217,10 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
intentFilter.addDataScheme("file");
getActivity().registerReceiver(mReceiver, intentFilter);
if (!mMeasured) {
mMeasurementHandler.sendEmptyMessage(MemoryMeasurementHandler.MSG_MEASURE_ALL);
if (!Environment.isExternalStorageEmulated()) {
mMeasurement.measureExternal();
}
mMeasurement.measureInternal();
}
StorageEventListener mStorageListener = new StorageEventListener() {
@@ -422,7 +229,9 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
Log.i(TAG, "Received storage state changed notification that " +
path + " changed state from " + oldState +
" to " + newState);
mMeasurementHandler.sendEmptyMessage(MemoryMeasurementHandler.MSG_MEASURE_ALL);
if (!Environment.isExternalStorageEmulated()) {
mMeasurement.measureExternal();
}
}
};
@@ -430,7 +239,7 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
public void onPause() {
super.onPause();
getActivity().unregisterReceiver(mReceiver);
mMeasurementHandler.removeMessages(MemoryMeasurementHandler.MSG_MEASURE_ALL);
mMeasurement.cleanUp();
}
@Override
@@ -438,7 +247,6 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
if (mStorageManager != null && mStorageListener != null) {
mStorageManager.unregisterListener(mStorageListener);
}
mMeasurementHandler.cleanUp();
super.onDestroy();
}
@@ -477,7 +285,12 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
mMeasurementHandler.sendEmptyMessage(MemoryMeasurementHandler.MSG_MEASURE_ALL);
mMeasurement.invalidate();
if (!Environment.isExternalStorageEmulated()) {
mMeasurement.measureExternal();
}
mMeasurement.measureInternal();
}
};
@@ -572,35 +385,95 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
}
}
private void updateUiExact() {
final float totalSize = mInternalTotalSize;
final long mediaSize = mInternalMediaSize;
final long appsSize = mInternalAppsSize;
private void updateUiExact(long totalSize, long availSize, long mediaSize, long appsSize) {
mInternalSize.setSummary(formatSize(totalSize));
mInternalAvail.setSummary(formatSize(availSize));
mInternalMediaUsage.setSummary(formatSize(mediaSize));
mInternalAppsUsage.setSummary(formatSize(appsSize));
mInternalUsageChart.clear();
mInternalUsageChart.addEntry(mediaSize / totalSize, mInternalMediaColor);
mInternalUsageChart.addEntry(appsSize / totalSize, mInternalAppsColor);
mInternalUsageChart.addEntry(mediaSize / (float) totalSize, mInternalMediaColor);
mInternalUsageChart.addEntry(appsSize / (float) totalSize, mInternalAppsColor);
final long usedSize = totalSize - availSize;
// There are other things that can take up storage, but we didn't
// measure it.
final long remaining = mInternalUsedSize - (mediaSize + appsSize);
final long remaining = usedSize - (mediaSize + appsSize);
if (remaining > 0) {
mInternalUsageChart.addEntry(remaining / totalSize, mInternalUsedColor);
mInternalUsageChart.addEntry(remaining / (float) totalSize, mInternalUsedColor);
}
mInternalUsageChart.commit();
mInternalMediaUsage.setSummary(formatSize(mediaSize));
mInternalAppsUsage.setSummary(formatSize(appsSize));
}
private void updateUiApproximate() {
private void updateUiApproximate(long totalSize, long availSize) {
mInternalSize.setSummary(formatSize(totalSize));
mInternalAvail.setSummary(formatSize(availSize));
final long usedSize = totalSize - availSize;
mInternalUsageChart.clear();
mInternalUsageChart.addEntry(mInternalUsedSize / (float) mInternalTotalSize, getResources()
.getColor(R.color.memory_used));
mInternalUsageChart.addEntry(usedSize / (float) totalSize, mInternalUsedColor);
mInternalUsageChart.commit();
}
private void updateExternalStorage(long totalSize, long availSize) {
String status = Environment.getExternalStorageState();
String readOnly = "";
if (status.equals(Environment.MEDIA_MOUNTED_READ_ONLY)) {
status = Environment.MEDIA_MOUNTED;
readOnly = mRes.getString(R.string.read_only);
}
if (status.equals(Environment.MEDIA_MOUNTED)) {
if (!Environment.isExternalStorageRemovable()) {
// This device has built-in storage that is not removable.
// There is no reason for the user to unmount it.
if (mSdMountToggleAdded) {
mSdMountPreferenceGroup.removePreference(mSdMountToggle);
mSdMountToggleAdded = false;
}
}
try {
mSdSize.setSummary(formatSize(totalSize));
mSdAvail.setSummary(formatSize(availSize) + readOnly);
mSdMountToggle.setEnabled(true);
mSdMountToggle.setTitle(mRes.getString(R.string.sd_eject));
mSdMountToggle.setSummary(mRes.getString(R.string.sd_eject_summary));
} catch (IllegalArgumentException e) {
// this can occur if the SD card is removed, but we haven't
// received the
// ACTION_MEDIA_REMOVED Intent yet.
status = Environment.MEDIA_REMOVED;
}
} else {
mSdSize.setSummary(mRes.getString(R.string.sd_unavailable));
mSdAvail.setSummary(mRes.getString(R.string.sd_unavailable));
if (!Environment.isExternalStorageRemovable()) {
if (status.equals(Environment.MEDIA_UNMOUNTED)) {
if (!mSdMountToggleAdded) {
mSdMountPreferenceGroup.addPreference(mSdMountToggle);
mSdMountToggleAdded = true;
}
}
}
if (status.equals(Environment.MEDIA_UNMOUNTED) || status.equals(Environment.MEDIA_NOFS)
|| status.equals(Environment.MEDIA_UNMOUNTABLE)) {
mSdMountToggle.setEnabled(true);
mSdMountToggle.setTitle(mRes.getString(R.string.sd_mount));
mSdMountToggle.setSummary(mRes.getString(R.string.sd_mount_summary));
} else {
mSdMountToggle.setEnabled(false);
mSdMountToggle.setTitle(mRes.getString(R.string.sd_mount));
mSdMountToggle.setSummary(mRes.getString(R.string.sd_insert_summary));
}
}
}
private String formatSize(long size) {
return Formatter.formatFileSize(getActivity(), size);
}
@@ -609,4 +482,25 @@ public class Memory extends SettingsPreferenceFragment implements OnCancelListen
// TODO: Is this really required?
// finish();
}
@Override
public void updateApproximateExternal(Bundle bundle) {
final Message message = mUpdateHandler.obtainMessage(MSG_UI_UPDATE_EXTERNAL_APPROXIMATE);
message.setData(bundle);
mUpdateHandler.sendMessage(message);
}
@Override
public void updateApproximateInternal(Bundle bundle) {
final Message message = mUpdateHandler.obtainMessage(MSG_UI_UPDATE_INTERNAL_APPROXIMATE);
message.setData(bundle);
mUpdateHandler.sendMessage(message);
}
@Override
public void updateExactInternal(Bundle bundle) {
final Message message = mUpdateHandler.obtainMessage(MSG_UI_UPDATE_INTERNAL_EXACT);
message.setData(bundle);
mUpdateHandler.sendMessage(message);
}
}

403
src/com/android/settings/deviceinfo/MemoryMeasurement.java Normal file
View File

@@ -0,0 +1,403 @@
package com.android.settings.deviceinfo;
import com.android.internal.app.IMediaContainerService;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.ApplicationInfo;
import android.content.pm.IPackageStatsObserver;
import android.content.pm.PackageManager;
import android.content.pm.PackageStats;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.StatFs;
import android.util.Log;
import java.io.File;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.List;
/**
* Measure the memory for various systems.
*
* TODO: This class should ideally have less knowledge about what the context
* it's measuring is. In the future, reduce the amount of stuff it needs to
* know about by just keeping an array of measurement types of the following
* properties:
*
* Filesystem stats (using StatFs)
* Directory measurements (using DefaultContainerService.measureDir)
* Applicaiton measurements (using PackageManager)
*
* Then the calling application would just specify the type and an argument.
* This class would keep track of it while the calling application would
* decide on how to use it.
*/
public class MemoryMeasurement {
private static final String TAG = "MemoryMeasurement";
public static final String TOTAL_SIZE = "total_size";
public static final String AVAIL_SIZE = "avail_size";
public static final String APPS_USED = "apps_used";
public static final String MEDIA_USED = "media_used";
private static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
private static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
DEFAULT_CONTAINER_PACKAGE, "com.android.defcontainer.DefaultContainerService");
private final MeasurementHandler mHandler;
private static volatile MemoryMeasurement sInstance;
private volatile WeakReference<MeasurementReceiver> mReceiver;
// Internal memory fields
private long mInternalTotalSize;
private long mInternalAvailSize;
private long mInternalMediaSize;
private long mInternalAppsSize;
// External memory fields
private long mExternalTotalSize;
private long mExternalAvailSize;
private MemoryMeasurement(Context context) {
// Start the thread that will measure the disk usage.
final HandlerThread t = new HandlerThread("MemoryMeasurement");
t.start();
mHandler = new MeasurementHandler(context, t.getLooper());
}
/**
* Get the singleton of the MemoryMeasurement class. The application
* context is used to avoid leaking activities.
*/
public static MemoryMeasurement getInstance(Context context) {
if (sInstance == null) {
synchronized (MemoryMeasurement.class) {
if (sInstance == null) {
sInstance = new MemoryMeasurement(context.getApplicationContext());
}
}
}
return sInstance;
}
public void setReceiver(MeasurementReceiver receiver) {
mReceiver = new WeakReference<MeasurementReceiver>(receiver);
}
public void measureExternal() {
if (!mHandler.hasMessages(MeasurementHandler.MSG_MEASURE_EXTERNAL)) {
mHandler.sendEmptyMessage(MeasurementHandler.MSG_MEASURE_EXTERNAL);
}
}
public void measureInternal() {
if (!mHandler.hasMessages(MeasurementHandler.MSG_MEASURE_INTERNAL)) {
mHandler.sendEmptyMessage(MeasurementHandler.MSG_MEASURE_INTERNAL);
}
}
public void cleanUp() {
mReceiver = null;
mHandler.cleanUp();
}
private void sendInternalApproximateUpdate() {
MeasurementReceiver receiver = (mReceiver != null) ? mReceiver.get() : null;
if (receiver == null) {
return;
}
Bundle bundle = new Bundle();
bundle.putLong(TOTAL_SIZE, mInternalTotalSize);
bundle.putLong(AVAIL_SIZE, mInternalAvailSize);
receiver.updateApproximateInternal(bundle);
}
private void sendInternalExactUpdate() {
MeasurementReceiver receiver = (mReceiver != null) ? mReceiver.get() : null;
if (receiver == null) {
return;
}
Bundle bundle = new Bundle();
bundle.putLong(TOTAL_SIZE, mInternalTotalSize);
bundle.putLong(AVAIL_SIZE, mInternalAvailSize);
bundle.putLong(APPS_USED, mInternalAppsSize);
bundle.putLong(MEDIA_USED, mInternalMediaSize);
receiver.updateExactInternal(bundle);
}
private void sendExternalApproximateUpdate() {
MeasurementReceiver receiver = (mReceiver != null) ? mReceiver.get() : null;
if (receiver == null) {
return;
}
Bundle bundle = new Bundle();
bundle.putLong(TOTAL_SIZE, mExternalTotalSize);
bundle.putLong(AVAIL_SIZE, mExternalAvailSize);
receiver.updateApproximateExternal(bundle);
}
public interface MeasurementReceiver {
public void updateApproximateInternal(Bundle bundle);
public void updateExactInternal(Bundle bundle);
public void updateApproximateExternal(Bundle bundle);
}
private class MeasurementHandler extends Handler {
public static final int MSG_MEASURE_INTERNAL = 1;
public static final int MSG_MEASURE_EXTERNAL = 2;
public static final int MSG_CONNECTED = 3;
public static final int MSG_DISCONNECT = 4;
public static final int MSG_COMPLETED = 5;
public static final int MSG_INVALIDATE = 6;
private List<String> mPendingApps = new ArrayList<String>();
private Object mLock = new Object();
private IMediaContainerService mDefaultContainer;
private volatile boolean mBound = false;
private volatile boolean mMeasured = false;
private long mAppsSize = 0;
private final WeakReference<Context> mContext;
final private ServiceConnection mDefContainerConn = new ServiceConnection() {
public void onServiceConnected(ComponentName name, IBinder service) {
final IMediaContainerService imcs = IMediaContainerService.Stub
.asInterface(service);
mDefaultContainer = imcs;
mBound = true;
sendMessage(obtainMessage(MSG_CONNECTED, imcs));
}
public void onServiceDisconnected(ComponentName name) {
mBound = false;
removeMessages(MSG_CONNECTED);
}
};
public MeasurementHandler(Context context, Looper looper) {
super(looper);
mContext = new WeakReference<Context>(context);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_MEASURE_EXTERNAL: {
if (mMeasured) {
sendExternalApproximateUpdate();
break;
}
measureApproximateExternalStorage();
break;
}
case MSG_MEASURE_INTERNAL: {
if (mMeasured) {
sendInternalExactUpdate();
break;
}
final Context context = (mContext != null) ? mContext.get() : null;
if (context == null) {
return;
}
measureApproximateInternalStorage();
synchronized (mLock) {
if (mBound) {
removeMessages(MSG_DISCONNECT);
sendMessage(obtainMessage(MSG_CONNECTED, mDefaultContainer));
} else {
Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
context.bindService(service, mDefContainerConn,
Context.BIND_AUTO_CREATE);
}
}
break;
}
case MSG_CONNECTED: {
IMediaContainerService imcs = (IMediaContainerService) msg.obj;
measureExactInternalStorage(imcs);
}
case MSG_DISCONNECT: {
synchronized (mLock) {
if (mBound) {
final Context context = (mContext != null) ? mContext.get() : null;
if (context == null) {
return;
}
mBound = false;
context.unbindService(mDefContainerConn);
}
}
}
case MSG_COMPLETED: {
mMeasured = true;
sendInternalExactUpdate();
break;
}
case MSG_INVALIDATE: {
mMeasured = false;
break;
}
}
}
public void cleanUp() {
removeMessages(MSG_MEASURE_INTERNAL);
removeMessages(MSG_MEASURE_EXTERNAL);
sendEmptyMessage(MSG_DISCONNECT);
}
public void queuePackageMeasurementLocked(String packageName) {
mPendingApps.add(packageName);
}
/**
* Request measurement of each package.
*
* @param pm PackageManager instance to query
*/
public void requestQueuedMeasurementsLocked(PackageManager pm) {
final int N = mPendingApps.size();
for (int i = 0; i < N; i++) {
pm.getPackageSizeInfo(mPendingApps.get(i), mStatsObserver);
}
}
final IPackageStatsObserver.Stub mStatsObserver = new IPackageStatsObserver.Stub() {
public void onGetStatsCompleted(PackageStats stats, boolean succeeded) {
if (succeeded) {
mAppsSize += stats.codeSize + stats.dataSize;
}
synchronized (mPendingApps) {
mPendingApps.remove(stats.packageName);
if (mPendingApps.size() == 0) {
mInternalAppsSize = mAppsSize;
onInternalMeasurementComplete();
}
}
}
};
private void onInternalMeasurementComplete() {
sendEmptyMessage(MSG_COMPLETED);
}
private void measureApproximateInternalStorage() {
final File dataPath = Environment.getDataDirectory();
final StatFs stat = new StatFs(dataPath.getPath());
final long blockSize = stat.getBlockSize();
final long totalBlocks = stat.getBlockCount();
final long availableBlocks = stat.getAvailableBlocks();
final long totalSize = totalBlocks * blockSize;
final long availSize = availableBlocks * blockSize;
mInternalTotalSize = totalSize;
mInternalAvailSize = availSize;
sendInternalApproximateUpdate();
}
private void measureExactInternalStorage(IMediaContainerService imcs) {
Context context = mContext != null ? mContext.get() : null;
if (context == null) {
return;
}
// We have to get installd to measure the package sizes.
PackageManager pm = context.getPackageManager();
if (pm == null) {
return;
}
long mediaSize;
try {
// TODO get these directories from somewhere
mediaSize = imcs.calculateDirectorySize("/data/media");
} catch (Exception e) {
Log.i(TAG, "Could not read memory from default container service");
return;
}
mInternalMediaSize = mediaSize;
final List<ApplicationInfo> apps = pm
.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES
| PackageManager.GET_DISABLED_COMPONENTS);
if (apps != null) {
synchronized (mPendingApps) {
for (int i = 0; i < apps.size(); i++) {
final ApplicationInfo info = apps.get(i);
queuePackageMeasurementLocked(info.packageName);
}
requestQueuedMeasurementsLocked(pm);
}
}
// Sending of the message back to the MeasurementReceiver is
// completed in the PackageObserver
}
public void measureApproximateExternalStorage() {
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long totalBlocks = stat.getBlockCount();
long availableBlocks = stat.getAvailableBlocks();
mExternalTotalSize = totalBlocks * blockSize;
mExternalAvailSize = availableBlocks * blockSize;
sendExternalApproximateUpdate();
}
}
public void invalidate() {
mHandler.sendEmptyMessage(MeasurementHandler.MSG_INVALIDATE);
}
}

45
src/com/android/settings/deviceinfo/PercentageBarChart.java
View File

@@ -16,8 +16,12 @@
package com.android.settings.deviceinfo;
import com.android.settings.R;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;
@@ -28,7 +32,7 @@ import java.util.Collection;
*
*/
public class PercentageBarChart extends View {
private final Paint mBackgroundPaint = new Paint();
private final Paint mEmptyPaint = new Paint();
private Collection<Entry> mEntries;
@@ -45,20 +49,39 @@ public class PercentageBarChart extends View {
public PercentageBarChart(Context context, AttributeSet attrs) {
super(context, attrs);
mBackgroundPaint.setARGB(255, 64, 64, 64);
mBackgroundPaint.setStyle(Paint.Style.FILL);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PercentageBarChart, 0, 0);
int emptyColor = Color.BLACK;
int n = a.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = a.getIndex(i);
switch (attr) {
case R.styleable.PercentageBarChart_emptyColor:
emptyColor = a.getColor(attr, 0);
break;
}
}
a.recycle();
mEmptyPaint.setColor(emptyColor);
mEmptyPaint.setStyle(Paint.Style.FILL);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
final int width = getWidth();
final int height = getHeight();
final int left = getPaddingLeft();
final int right = getWidth() - getPaddingRight();
final int top = getPaddingTop();
final int bottom = getHeight() - getPaddingBottom();
canvas.drawPaint(mBackgroundPaint);
final int width = right - left;
int lastX = 0;
int lastX = left;
if (mEntries != null) {
for (final Entry e : mEntries) {
@@ -70,14 +93,16 @@ public class PercentageBarChart extends View {
}
final int nextX = lastX + entryWidth;
if (nextX >= width) {
if (nextX >= right) {
break;
}
canvas.drawRect(lastX, 0, nextX, height, e.paint);
canvas.drawRect(lastX, top, nextX, bottom, e.paint);
lastX = nextX;
}
}
canvas.drawRect(lastX, top, lastX + width, bottom, mEmptyPaint);
}
/**
@@ -85,7 +110,7 @@ public class PercentageBarChart extends View {
* calling {@link #invalidate()}.
*/
public void setBackgroundColor(int color) {
mBackgroundPaint.setColor(color);
mEmptyPaint.setColor(color);
}
/**