Java Code Examples for android.app.Activity#getContentResolver()

public static Point getBitmapSize(Uri uri, Activity activity) {
    ContentResolver resolver = activity.getContentResolver();
    Point imageSize = getBitmapBound(resolver, uri);
    int w = imageSize.x;
    int h = imageSize.y;
    if (PhotoMetadataUtils.shouldRotate(resolver, uri)) {
        w = imageSize.y;
        h = imageSize.x;
    }
    if (h == 0) return new Point(MAX_WIDTH, MAX_WIDTH);
    DisplayMetrics metrics = new DisplayMetrics();
    activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
    float screenWidth = (float) metrics.widthPixels;
    float screenHeight = (float) metrics.heightPixels;
    float widthScale = screenWidth / w;
    float heightScale = screenHeight / h;
    if (widthScale > heightScale) {
        return new Point((int) (w * widthScale), (int) (h * heightScale));
    }
    return new Point((int) (w * widthScale), (int) (h * heightScale));
}
 

/**
private final static String PASSWORD_LETTERS = "[email protected]!#";
private final static int PASSWORD_LENGTH = 12;

public static String generatePassword()
{
    // Pick from some letters that won't be easily mistaken for each
    // other. So, for example, omit o O and 0, 1 l and L.
    SecureRandom random = new SecureRandom();

    StringBuffer pw = new StringBuffer();
    for (int i=0; i<PASSWORD_LENGTH; i++)
    {
        int index = (int)(random.nextDouble()*PASSWORD_LETTERS.length());
        pw.append(PASSWORD_LETTERS.substring(index, index+1));
    }
    return pw.toString();
}**/



public static boolean changeLocalPassword (Activity context, long providerId, long accountId, String password)
{
    try {
        final ContentResolver cr = context.getContentResolver();
        ImPluginHelper helper = ImPluginHelper.getInstance(context);
        ImApp.insertOrUpdateAccount(cr, providerId, accountId, null, null, password);

        /**
        XmppConnection xmppConn = new XmppConnection(context);
        xmppConn.initUser(providerId, accountId);
        boolean success = xmppConn.changeServerPassword(providerId, accountId, oldPassword, newPassword);
        **/
        return false;

        //return success;
    }
    catch (Exception e)
    {
        return false;
    }
}
 

/**
 * 获取图片缩略图 只有Android2.1以上版本支持
 * 
 * @param imgName
 * @param kind
 *            MediaStore.Images.Thumbnails.MICRO_KIND
 * @return
 */
public static Bitmap loadImgThumbnail(Activity context, String imgName,
		int kind) {
	Bitmap bitmap = null;

	String[] proj = { MediaStore.Images.Media._ID,
			MediaStore.Images.Media.DISPLAY_NAME };

	Cursor cursor = context.managedQuery(
			MediaStore.Images.Media.EXTERNAL_CONTENT_URI, proj,
			MediaStore.Images.Media.DISPLAY_NAME + "='" + imgName + "'",
			null, null);

	if (cursor != null && cursor.getCount() > 0 && cursor.moveToFirst()) {
		ContentResolver crThumb = context.getContentResolver();
		BitmapFactory.Options options = new BitmapFactory.Options();
		options.inSampleSize = 1;
		bitmap = MethodsCompat.getThumbnail(crThumb, cursor.getInt(0),
				kind, options);
	}
	return bitmap;
}
 

/**
     * @param uri      图片uri
     * @param activity 界面
     * @return xy
     */
    public static Point getBitmapSize(Uri uri, Activity activity) {
        ContentResolver resolver = activity.getContentResolver(); // ContentResolver共享数据库
        Point imageSize = getBitmapBound(resolver, uri);
        int w = imageSize.x;
        int h = imageSize.y;
        // 判断图片是否旋转了
        if (PhotoMetadataUtils.shouldRotate(resolver, uri)) {
            w = imageSize.y;
            h = imageSize.x;
        }
        if (h == 0) return new Point(MAX_WIDTH, MAX_WIDTH);
        DisplayMetrics metrics = new DisplayMetrics();
        activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
        // 获取屏幕的宽度高度
        float screenWidth = (float) metrics.widthPixels;
        float screenHeight = (float) metrics.heightPixels;
        // 屏幕宽度 / 图片宽度 = ？？
        float widthScale = screenWidth / w;
        float heightScale = screenHeight / h;
//        if (widthScale > heightScale) {
//            return new Point((int) (w * widthScale), (int) (h * heightScale));
//        }
        // ?? * 宽度
        return new Point((int) (w * widthScale), (int) (h * heightScale));
    }
 

/**
 * 获取图片缩略�? 只有Android2.1以上版本支持
 *
 * @param imgName
 * @param kind    MediaStore.Images.Thumbnails.MICRO_KIND
 * @return
 */
@SuppressWarnings("deprecation")
public static Bitmap loadImgThumbnail(Activity context, String imgName,
                                      int kind) {
    Bitmap bitmap = null;

    String[] proj = {MediaStore.Images.Media._ID,
            MediaStore.Images.Media.DISPLAY_NAME};

    Cursor cursor = context.managedQuery(
            MediaStore.Images.Media.EXTERNAL_CONTENT_URI, proj,
            MediaStore.Images.Media.DISPLAY_NAME + "='" + imgName + "'",
            null, null);

    if (cursor != null && cursor.getCount() > 0 && cursor.moveToFirst()) {
        ContentResolver crThumb = context.getContentResolver();
        Options options = new Options();
        options.inSampleSize = 1;
        bitmap = getThumbnail(crThumb, cursor.getInt(0),
                kind, options);
    }
    return bitmap;
}
 

private void callPreference(XC_MethodHook.MethodHookParam param, String key, boolean value){
    Activity activity = (Activity) param.thisObject;
    ContentResolver contentResolver = activity.getContentResolver();
    Bundle bundle = new Bundle();
    bundle.putInt("type", 1);
    bundle.putString("key", key);
    bundle.putBoolean("value", value);
    remoteChange("SET", bundle,contentResolver);
    contentResolver.notifyChange(Uri.withAppendedPath(Uri.parse("content://com.miui.securitycenter.remoteprovider"), key), null, false);
}
 

/**
 * 设置亮度（每30递增）
 *
 * @param activity
 */
public static void setBrightness(Activity activity) {
    ContentResolver resolver = activity.getContentResolver();
    Uri uri = Settings.System.getUriFor("screen_brightness");
    int nowScreenBri = getScreenBrightness(activity);
    nowScreenBri = nowScreenBri <= 225 ? nowScreenBri + 30 : 30;
    System.out.println("nowScreenBri==" + nowScreenBri);
    Settings.System.putInt(resolver, "screen_brightness", nowScreenBri);
    resolver.notifyChange(uri, null);
}
 

/**
 * 获取当前屏幕亮度
 *
 * @param activity
 * @return
 */
public static int getScreenBrightness(Activity activity) {
    int value = 0;
    ContentResolver cr = activity.getContentResolver();
    try {
        value = Settings.System.getInt(cr, Settings.System.SCREEN_BRIGHTNESS);
    } catch (Settings.SettingNotFoundException e) {

    }
    return value;
}
 

/**
 * Updates the preferences state to match the actual state of touch exploration. This is called
 * once when the preferences activity launches and again whenever the actual state of touch
 * exploration changes.
 */
private void updateTouchExplorationDisplay() {
  TwoStatePreference prefTouchExploration =
      (TwoStatePreference)
          findPreference(getString(R.string.pref_explore_by_touch_reflect_key));
  if (prefTouchExploration == null) {
    return;
  }

  Activity activity = getActivity();
  if (activity == null) {
    return;
  }

  ContentResolver resolver = activity.getContentResolver();
  Resources res = getResources();
  SharedPreferences prefs = SharedPreferencesUtils.getSharedPreferences(activity);

  boolean requestedState =
      SharedPreferencesUtils.getBooleanPref(
          prefs, res, R.string.pref_explore_by_touch_key, R.bool.pref_explore_by_touch_default);
  boolean reflectedState = prefTouchExploration.isChecked();
  boolean actualState =
      TalkBackService.isServiceActive() ? isTouchExplorationEnabled(resolver) : requestedState;

  // If touch exploration is actually off and we requested it on, the user
  // must have declined the "Enable touch exploration" dialog. Update the
  // requested value to reflect this.
  if (requestedState != actualState) {
    LogUtils.d(TAG, "Set touch exploration preference to reflect actual state %b", actualState);
    SharedPreferencesUtils.putBooleanPref(
        prefs, res, R.string.pref_explore_by_touch_key, actualState);
  }

  // Ensure that the check box preference reflects the requested state,
  // which was just synchronized to match the actual state.
  if (reflectedState != actualState) {
    prefTouchExploration.setChecked(actualState);
  }
}
 

public static InputStream GetISfromIntent(Intent u, Activity con) {
    ContentResolver cr = con.getContentResolver();
    try {
        return cr.openInputStream(u.getData());
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        return null;
    }

}
 

/**
 * 获取屏幕的亮度
 */
public float getScreenBrightness(Activity activity) {
  int nowBrightnessValue = 0;
  ContentResolver resolver = activity.getContentResolver();
  try {
    nowBrightnessValue = Settings.System.getInt(
        resolver, Settings.System.SCREEN_BRIGHTNESS);
  } catch (Exception e) {
    e.printStackTrace();
  }
  return nowBrightnessValue;
}
 

@Override
public void match(Activity activity, ModelCallback<JSONArray> callback) {
	ContentResolver contentResolver = activity.getContentResolver();
	JSONArray myHashes = getMyHashes(contentResolver);
	JSONArray friendHashes = getOtherHashes(contentResolver);
	ContactMatcherUtils.reportToFriendFinder(activity, callback, friendHashes, myHashes);
}
 

/**
 * write or delete call log, {@link android.Manifest.permission#WRITE_CALL_LOG}
 *
 * @param activity
 * @return true if success
 */
private static boolean checkWriteCallLog(Activity activity) throws Exception {
    ContentResolver contentResolver = activity.getContentResolver();
    ContentValues content = new ContentValues();
    content.put(CallLog.Calls.TYPE, CallLog.Calls.INCOMING_TYPE);
    content.put(CallLog.Calls.NUMBER, TAG_NUMBER);
    content.put(CallLog.Calls.DATE, 20140808);
    content.put(CallLog.Calls.NEW, "0");
    contentResolver.insert(Uri.parse("content://call_log/calls"), content);

    contentResolver.delete(Uri.parse("content://call_log/calls"), "number = ?", new
            String[]{TAG_NUMBER});

    return true;
}
 

static void initContentObserver(Activity activity) {

            Uri contactsUri = ContactsContract.Contacts.CONTENT_URI;

            ContentResolver contentResolver = activity.getContentResolver();

            contentResolver.
                    registerContentObserver(
                            contactsUri,
                            true,
                            new ContactsObserver(new Handler(), activity));
        }
 

static void initContentObserver(Activity activity) {

        Uri externalImagesUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
        Uri internalImagesUri = MediaStore.Images.Media.INTERNAL_CONTENT_URI;
        Uri externalVideosUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
        Uri internalVideosUri = MediaStore.Video.Media.INTERNAL_CONTENT_URI;

        ContentResolver contentResolver = activity.getContentResolver();

        contentResolver.
                registerContentObserver(
                        externalImagesUri,
                        true,
                        new MediaObserver(new Handler(), activity));

        contentResolver.
                registerContentObserver(
                        internalImagesUri,
                        true,
                        new MediaObserver(new Handler(), activity));

        contentResolver.
                registerContentObserver(
                        externalVideosUri,
                        true,
                        new MediaObserver(new Handler(), activity));

        contentResolver.
                registerContentObserver(
                        internalVideosUri,
                        true,
                        new MediaObserver(new Handler(), activity));
    }
 

private void runBindTask( final Activity context, final List<AccountInfo> accountInfoList ) {
    final Resources resources = context.getResources();
    final ContentResolver resolver = context.getContentResolver();
    final ImApp mApp = (ImApp)context.getApplication();

    // if called multiple times
    if (mBindTask != null)
        mBindTask.cancel(false);
    //


    mBindTask = new AsyncTask<Void, Void, List<AccountSetting>>() {

        @Override
        protected List<AccountSetting> doInBackground(Void... params) {
            List<AccountSetting> accountSettingList = new ArrayList<AccountSetting>();
            for( AccountInfo ai : accountInfoList ) {
                accountSettingList.add( getAccountSettings(ai) );
            }
            return accountSettingList;
        }

        private AccountSetting getAccountSettings(AccountInfo ai) {
            AccountSetting as = new AccountSetting();


            Cursor pCursor = resolver.query(Imps.ProviderSettings.CONTENT_URI,new String[] {Imps.ProviderSettings.NAME, Imps.ProviderSettings.VALUE},Imps.ProviderSettings.PROVIDER + "=?",new String[] { Long.toString(ai.providerId)},null);

            if (pCursor != null)
            {
                Imps.ProviderSettings.QueryMap settings =
                        new Imps.ProviderSettings.QueryMap(pCursor, resolver, ai.providerId, false , null);

                as.connectionStatus = ai.dbConnectionStatus;
                as.activeUserName = ai.activeUserName;
                as.domain = settings.getDomain();
                as.host = settings.getServer();
                as.port = settings.getPort();

                /**
                IImConnection conn = mApp.getConnection(ai.providerId,settings.get);
                if (conn == null) {
                    as.connectionStatus = ImConnection.DISCONNECTED;
                } else {
                    try {
                        as.connectionStatus = conn.getState();
                    } catch (RemoteException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                }*/

                settings.close();
            }
            return as;
        }

        @Override
        protected void onPostExecute(List<AccountSetting> result) {
            // store
            mBindTask = null;
            // swap
            AccountAdapter.super.swapCursor(mStashCursor);
            if (mListener != null)
                mListener.onPopulate();
        }
    };
    mBindTask.execute();
}
 

public static String getMimeTypeFromUri(Activity context, Uri uri) {
    ContentResolver resolver = context.getContentResolver();
    return resolver.getType(uri);
}
 

public static void Modi_WangYi_Mp3_UI_doing(Activity con, int requestCode, int resultCode, Intent in)
{
	if (requestCode == requestcode && resultCode == Activity.RESULT_OK)
	{
		Uri uri = in.getData();
		ContentResolver cr = con.getContentResolver();  
		try
		{
			Bitmap bmp = BitmapFactory.decodeStream(cr.openInputStream(uri));
			File[] files = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/netease/cloudmusic/Ad/").listFiles();
			if (files == null)
			{
				Toast.makeText(con, "没安装网易音乐或者是没有加载广告", Toast.LENGTH_LONG).show();
				return;
			}
			Vector<String> c=new Vector<String>();
			for (File f : files) 
			{
				if (f.isDirectory())
				{
					File[] temp_files=f.listFiles();
					if (temp_files == null) continue;
					for (File inner_f : temp_files)
					{

						if (inner_f.isFile())
							c.add(inner_f.getAbsolutePath());
					}
				}
				if (f.isFile())
					c.add(f.getAbsolutePath());
			}
			for (String s : c)
			{
				OutputStream ops=new FileOutputStream(s);
				bmp.compress(Bitmap.CompressFormat.JPEG, 100, ops);
			}


		}
		catch (FileNotFoundException e)
		{
			e.printStackTrace();
		}  
		Toast.makeText(con, "替换完成", Toast.LENGTH_SHORT).show();
		//finish();
	}
}
 

/**
 * Creates new item in the system's media database.
 *
 * @see <a href="https://github.com/android/platform_packages_apps_soundrecorder/blob/master/src/com/android/soundrecorder/SoundRecorder.java">Android Recorder source</a>
 */
public Uri saveCurrentRecordToMediaDB(final String fileName) {
    if (mAudioRecordUri != null) return mAudioRecordUri;

    final Activity activity = getActivity();
    final Resources res = activity.getResources();
    final ContentValues cv = new ContentValues();
    final File file = new File(fileName);
    final long current = System.currentTimeMillis();
    final long modDate = file.lastModified();
    final Date date = new Date(current);
    final String dateTemplate = res.getString(R.string.audio_db_title_format);
    final SimpleDateFormat formatter = new SimpleDateFormat(dateTemplate, Locale.getDefault());
    final String title = formatter.format(date);
    final long sampleLengthMillis = 1;
    // Lets label the recorded audio file as NON-MUSIC so that the file
    // won't be displayed automatically, except for in the playlist.
    cv.put(MediaStore.Audio.Media.IS_MUSIC, "0");

    cv.put(MediaStore.Audio.Media.TITLE, title);
    cv.put(MediaStore.Audio.Media.DATA, file.getAbsolutePath());
    cv.put(MediaStore.Audio.Media.DATE_ADDED, (int) (current / 1000));
    cv.put(MediaStore.Audio.Media.DATE_MODIFIED, (int) (modDate / 1000));
    cv.put(MediaStore.Audio.Media.DURATION, sampleLengthMillis);
    cv.put(MediaStore.Audio.Media.MIME_TYPE, "audio/*");
    cv.put(MediaStore.Audio.Media.ARTIST, res.getString(R.string.audio_db_artist_name));
    cv.put(MediaStore.Audio.Media.ALBUM, res.getString(R.string.audio_db_album_name));

    Log.d(TAG, "Inserting audio record: " + cv.toString());

    final ContentResolver resolver = activity.getContentResolver();
    final Uri base = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
    Log.d(TAG, "ContentURI: " + base);

    mAudioRecordUri = resolver.insert(base, cv);
    if (mAudioRecordUri == null) {
        return null;
    }
    activity.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, mAudioRecordUri));
    return mAudioRecordUri;
}
 

static void removeContentObserver(Activity activity) {

            ContentResolver contentResolver = activity.getContentResolver();

            contentResolver.unregisterContentObserver(new ContactsObserver(new Handler(), activity));

        }