Java Code Examples for android.text.TextUtils#isEmpty()

public static String getConnectedWifiMacAddress(Application context) {
    String connectedWifiMacAddress = null;
    WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    List<ScanResult> wifiList;

    if (wifiManager != null) {
        wifiList = wifiManager.getScanResults();
        WifiInfo info = wifiManager.getConnectionInfo();
        if (wifiList != null && info != null) {
            for (int i = 0; i < wifiList.size(); i++) {
                ScanResult result = wifiList.get(i);
                if (!TextUtils.isEmpty(info.getBSSID()) && info.getBSSID().equals(result.BSSID)) {
                    connectedWifiMacAddress = result.BSSID;
                }
            }
        }
    }
    return connectedWifiMacAddress;
}
 

public boolean play(Device device, String path) {
    if (device == null) {
        return false;
    }
    Service service = device.getService("urn:schemas-upnp-org:service:AVTransport:1");
    if (service == null) {
        return false;
    }
    Action action = service.getAction("SetAVTransportURI");
    if (action == null) {
        return false;
    }
    Action playAction = service.getAction("Play");
    if (playAction == null || TextUtils.isEmpty(path)) {
        return false;
    }
    action.setArgumentValue("InstanceID", 0);
    action.setArgumentValue(AVTransport.CURRENTURI, path);
    action.setArgumentValue(AVTransport.CURRENTURIMETADATA, 0);
    if (!action.postControlAction()) {
        return false;
    }
    playAction.setArgumentValue("InstanceID", 0);
    playAction.setArgumentValue(AVTransport.SPEED, "1");
    return playAction.postControlAction();
}
 

private Map<String, String> createBody(Map<String, String> params) {
    Map<String, String> bodyParams = new HashMap<>();
    bodyParams.put("commonParam", LVCommonParamPlugin.getCommonParamJson());
    Platform platform = getPlatform();
    if (platform != null) {
        PlatformInfo info = platform.getPlatformInfo();
        if (info != null) {
            String videoId = info.getVideoId();
            if (!TextUtils.isEmpty(videoId)) {
                bodyParams.put("videoId", videoId);
            }
        }
    }
    if (params != null) {
        bodyParams.putAll(params);
    }
    HashMap<String, String> dataParams = new HashMap<>();
    dataParams.put("data", VenvyAesUtil.encrypt(AppSecret.getAppSecret(getPlatform()),
            AppSecret.getAppSecret(getPlatform()), new JSONObject(bodyParams).toString()));
    return dataParams;
}
 

/**
 * Gets the full path to the artwork
 * @param artworkPath The artwork path
 * @return The full path to the artwork
 */
public String getArtworkPath(String artworkPath) {
    // Artwork path is empty
    if (TextUtils.isEmpty(artworkPath)) return null;

    String path;

    // DS 2017-05-06: Changed the path to the newest version
    if (!artworkPath.startsWith("artwork/"))
        artworkPath = "artwork/" + artworkPath;

    // Search in the public data
    for (String publicData : mPathPublicData) {
        path = publicData + "/files/" + artworkPath;

        if (FileTools.fileExists(path)) return path;
    }

    // Private artwork path
    path = getPrivateFilesPath() + "/" + artworkPath;

    // Don't check if the file exists, this will freeze the UI thread
    // if (SuperUserTools.fileExists(path)) return path;

    return path;
}
 

protected void sendResponseMessage(HttpResponse response) {
    super.sendResponseMessage(response);
    Header[] headers = response.getHeaders("Set-Cookie");
    if (headers != null && headers.length > 0) {
        CookieSyncManager.createInstance(this.val$context).sync();
        CookieManager instance = CookieManager.getInstance();
        instance.setAcceptCookie(true);
        instance.removeSessionCookie();
        String mm = "";
        for (Header header : headers) {
            String[] split = header.toString().split("Set-Cookie:");
            EALogger.i("正式登录", "split[1]===>" + split[1]);
            instance.setCookie(Constants.THIRDLOGIN, split[1]);
            int index = split[1].indexOf(";");
            if (TextUtils.isEmpty(mm)) {
                mm = split[1].substring(index + 1);
                EALogger.i("正式登录", "mm===>" + mm);
            }
        }
        EALogger.i("正式登录", "split[1222]===>COOKIE_DEVICE_ID=" + LemallPlatform.getInstance().uuid + ";" + mm);
        instance.setCookie(Constants.THIRDLOGIN, "COOKIE_DEVICE_ID=" + LemallPlatform.getInstance().uuid + ";" + mm);
        instance.setCookie(Constants.THIRDLOGIN, "COOKIE_APP_ID=" + LemallPlatform.getInstance().getmAppInfo().getId() + ";" + mm);
        CookieSyncManager.getInstance().sync();
        this.val$iLetvBrideg.reLoadWebUrl();
    }
}
 

/**
 * Called when OK button has been pressed.
 */
@Override
public void onClick(final View view) {
	final String idValue = mAdvIntervalView.getText().toString();
	boolean valid = true;
	int interval = 0;
	if (TextUtils.isEmpty(idValue))
		valid = false;
	try {
		interval = Integer.parseInt(idValue);
	} catch (final NumberFormatException e) {
		valid = false;
	}
	if (interval < 100 || interval > 10240)
		valid = false;

	if (valid) {
		final UpdateFragment parentFragment = (UpdateFragment) getParentFragment();
		parentFragment.writeNewAdvInterval(interval);
		dismiss();
	} else {
		mAdvIntervalView.setError(getText(R.string.update_dialog_adv_interval_error));
		mAdvIntervalView.requestFocus();
	}
}
 

/**
 * 用户点赞操作</br>
 * 
 * @param feedId 该条feed的id
 */
public void postLike(final String feedId) {

    SimpleFetchListener<SimpleResponse> listener = new SimpleFetchListener<SimpleResponse>() {

        @Override
        public void onComplete(SimpleResponse response) {
            if (NetworkUtils.handleResponseComm(response)) {
                return;
            }

            if (!TextUtils.isEmpty(response.id)) {
                likeSuccess(feedId, response.id);
            } else if (ErrorCode.LIKED_CODE == response.errCode) {
                mFeedItem.isLiked = true;
                if (mLikeViewInterface != null) {
                    mLikeViewInterface.like(true);
                    mLikeViewInterface.updateLikeView("");
                }
            }
        }
    };
    mCommunitySDK.postLike(feedId, listener);

}
 

/**
 * 指定したNotificationChannelを破棄する
 * @param channelId
 */
@SuppressLint("NewApi")
protected void releaseNotificationChannel(@Nullable final String channelId) {
	if (!TextUtils.isEmpty(channelId) && BuildCheck.isOreo()) {
		final NotificationManager manager
			= ContextUtils.requireSystemService(this, NotificationManager.class);
		try {
			manager.deleteNotificationChannel(channelId);
		} catch (final Exception e) {
			Log.w(TAG, e);
		}
	}
}
 

/**
 * Get an {@link Locale} out of a android language code
 * The {@code androidLC} may be in any of the forms: de, en, de-rAt
 */
public Locale getLocaleByAndroidCode(String androidLC) {
    if (!TextUtils.isEmpty(androidLC)) {
        return androidLC.contains("-r")
                ? new Locale(androidLC.substring(0, 2), androidLC.substring(4, 6)) // de-rAt
                : new Locale(androidLC); // de
    }
    return Resources.getSystem().getConfiguration().locale;
}
 

public void loadUrl(String url) {
    if (!TextUtils.isEmpty(url) && url.endsWith("mp4") && Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP_MR1) {
        mWebView.loadData(ByWebTools.getVideoHtmlBody(url), "text/html", "UTF-8");
    } else {
        mWebView.loadUrl(url);
    }
    mProgressBar.show();
}
 

public static int guessChapterNum(String name) {
    if (TextUtils.isEmpty(name) || name.matches("第.*?卷.*?第.*[章节回]"))
        return -1;
    Matcher matcher = chapterNamePattern.matcher(name);
    if (matcher.find()) {
        return StringUtils.stringToInt(matcher.group(2));
    }
    return -1;
}
 

@Override
public String getTitle() {
    if (TextUtils.isEmpty(mTitle)) {
        return getString(R.string.nodes_list);
    } else {
        return mTitle;
    }
}
 

private SignalServiceAttachmentPointer createAttachmentPointer(Attachment attachment) throws InvalidPartException {
  if (TextUtils.isEmpty(attachment.getLocation())) {
    throw new InvalidPartException("empty content id");
  }

  if (TextUtils.isEmpty(attachment.getKey())) {
    throw new InvalidPartException("empty encrypted key");
  }

  try {
    final SignalServiceAttachmentRemoteId remoteId = SignalServiceAttachmentRemoteId.from(attachment.getLocation());
    final byte[]                          key      = Base64.decode(attachment.getKey());

    if (attachment.getDigest() != null) {
      Log.i(TAG, "Downloading attachment with digest: " + Hex.toString(attachment.getDigest()));
    } else {
      Log.i(TAG, "Downloading attachment with no digest...");
    }

    return new SignalServiceAttachmentPointer(attachment.getCdnNumber(), remoteId, null, key,
                                              Optional.of(Util.toIntExact(attachment.getSize())),
                                              Optional.absent(),
                                              0, 0,
                                              Optional.fromNullable(attachment.getDigest()),
                                              Optional.fromNullable(attachment.getFileName()),
                                              attachment.isVoiceNote(),
                                              Optional.absent(),
                                              Optional.fromNullable(attachment.getBlurHash()).transform(BlurHash::getHash),
                                              attachment.getUploadTimestamp());
  } catch (IOException | ArithmeticException e) {
    Log.w(TAG, e);
    throw new InvalidPartException(e);
  }
}
 

public static String[] a(JSONObject jsonobject)
{
    String as[] = {
        null, null, null, null, null
    };
    if (jsonobject == null || "http://apilocate.amap.com/mobile/binary".length() == 0)
    {
        as[0] = "false";
    } else
    {
        try
        {
            String s = jsonobject.getString("key");
            String s1 = jsonobject.getString("X-INFO");
            String s2 = jsonobject.getString("X-BIZ");
            String s3 = jsonobject.getString("User-Agent");
            if (!TextUtils.isEmpty(s) && !TextUtils.isEmpty(s1) && !TextUtils.isEmpty(s3))
            {
                as[0] = "true";
                as[1] = s;
                as[2] = s1;
                as[3] = s2;
                as[4] = s3;
            }
        }
        catch (JSONException jsonexception) { }
        if (as[0] == null || !as[0].equals("true"))
        {
            as[0] = "true";
            return as;
        }
    }
    return as;
}
 

public void openWebLink(String formData, String formAction) {
    Bundle bundle = new Bundle();
    if (!TextUtils.isEmpty(formData)) {
        bundle.putString(AlRichMessage.KM_FORM_DATA, formData);
    }
    if (!TextUtils.isEmpty(formAction)) {
        bundle.putString(AlRichMessage.KM_FORM_ACTION, formAction);
    }

    if (richMessageListener != null) {
        richMessageListener.onAction(null, AlRichMessage.OPEN_WEB_VIEW_ACTIVITY, null, bundle, null);
    }
}
 

/**
 * Goes through all apps that handle VIEW intents and have a warmup service. Picks
 * the one chosen by the user if there is one, otherwise makes a best effort to return a
 * valid package name.
 *
 * This is <strong>not</strong> threadsafe.
 *
 * @param context {@link Context} to use for accessing {@link PackageManager}.
 * @return The package name recommended to use for connecting to custom tabs related components.
 */
public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();
    // Get default VIEW intent handler.
    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}
 

@Override
public void requestNativeAd(final Context context,
    final MediationNativeListener listener,
    Bundle serverParameters,
    final NativeMediationAdRequest mediationAdRequest,
    final Bundle mediationExtras) {
  mNativeMedAdReq = mediationAdRequest;
  final long placement = InMobiAdapterUtils.getPlacementId(serverParameters);
  mNativeListener = listener;

  if (!mNativeMedAdReq.isUnifiedNativeAdRequested()
      && !mNativeMedAdReq.isAppInstallAdRequested()) {
    Log.e(TAG, "Failed to request InMobi native ad: "
        + "Unified Native Ad or App install Ad should be requested.");
    mNativeListener.onAdFailedToLoad(this,
        AdRequest.ERROR_CODE_INVALID_REQUEST);
    return;
  }

  String accountID = serverParameters.getString(InMobiAdapterUtils.KEY_ACCOUNT_ID);
  if (TextUtils.isEmpty(accountID)) {
    Log.w(TAG, "Failed to initialize InMobi SDK: Missing or invalid Account ID.");
    listener.onAdFailedToLoad(InMobiAdapter.this,
        AdRequest.ERROR_CODE_INTERNAL_ERROR);
    return;
  }

  InMobiInitializer.getInstance().init(context, accountID, new Listener() {
    @Override
    public void onInitializeSuccess() {
      createAndLoadNativeAd(context, placement, mNativeMedAdReq, mediationExtras);
    }

    @Override
    public void onInitializeError(@NonNull Error error) {
      Log.w(TAG, error.getMessage());
      if (mNativeListener != null) {
        mNativeListener.onAdFailedToLoad(InMobiAdapter.this,
            AdRequest.ERROR_CODE_INTERNAL_ERROR);
      }
    }
  });
}
 

@Override
public void reload() {
  if (!TextUtils.isEmpty(src)) {
    loadContent();
  }
}
 

/**
 * 获取对应包名应用启动的 Activity
 * <pre>
 *     android.intent.category.LAUNCHER (android.intent.action.MAIN)
 * </pre>
 * @param packageName 应用包名
 * @return package.xx.Activity.className
 */
public static String getActivityToLauncher(final String packageName) {
    if (StringUtils.isSpace(packageName)) return null;
    String cmd = "dumpsys package %s";
    // 执行 shell
    ShellUtils.CommandResult result = ShellUtils.execCmd(String.format(cmd, packageName), true);
    if (result.isSuccess3()) {
        String mainStr = "android.intent.action.MAIN:";
        int start = result.successMsg.indexOf(mainStr);
        // 防止都为 null
        if (start != -1) {
            try {
                // 进行裁剪字符串
                String subData = result.successMsg.substring(start + mainStr.length());
                // 进行拆分
                String[] arrays = subData.split(NEW_LINE_STR);
                for (String str : arrays) {
                    if (!TextUtils.isEmpty(str)) {
                        // 存在包名才处理
                        if (str.indexOf(packageName) != -1) {
                            String[] splitArys = str.split(REGEX_SPACE);
                            for (String strData : splitArys) {
                                if (!TextUtils.isEmpty(strData)) {
                                    // 属于 packageName/ 前缀的
                                    if (strData.indexOf(packageName + "/") != -1) {
                                        // 防止属于 packageName/.xx.Main_Activity
                                        if (strData.indexOf("/.") != -1) {
                                            // packageName/.xx.Main_Activity
                                            // packageName/packageName.xx.Main_Activity
                                            strData = strData.replace("/", "/" + packageName);
                                        }
                                        return strData;
                                    }
                                }
                            }
                        }
                    }
                }
            } catch (Exception e) {
                LogPrintUtils.eTag(TAG, e, "getActivityToLauncher " + packageName);
            }
        }
    }
    return null;
}
 

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    canvas.drawColor(Color.GRAY);

    //画拖拽气泡
    if (mState != STATE_DISMISS) {
        canvas.drawCircle(mBubbleCenterX, mBubbleCenterY, mBubbleRadius, mBubblePaint);
    }

    if (mState == STATE_DRAG && d < maxD - maxD / 4) {
        //画黏连小圆
        canvas.drawCircle(mCircleCenterX, mCircleCenterY, mCircleRadius, mBubblePaint);
        //计算控制点坐标，为两圆圆心连线的中点
        mControlX = (mBubbleCenterX + mCircleCenterX) / 2;
        mControlY = (mBubbleCenterY + mCircleCenterY) / 2;
        //计算两条二阶贝塞尔曲线的起点和终点
        float sin = (mBubbleCenterY - mCircleCenterY) / d;
        float cos = (mBubbleCenterX - mCircleCenterX) / d;
        mCircleStartX = mCircleCenterX - mCircleRadius * sin;
        mCircleStartY = mCircleCenterY + mCircleRadius * cos;
        mCircleEndX = mCircleCenterX + mCircleRadius * sin;
        mCircleEndY = mCircleCenterY - mCircleRadius * cos;

        mBubbleEndX = mBubbleCenterX - mBubbleRadius * sin;
        mBubbleEndY = mBubbleCenterY + mBubbleRadius * cos;
        mBubbleStartX = mBubbleCenterX + mBubbleRadius * sin;
        mBubbleStartY = mBubbleCenterY - mBubbleRadius * cos;



        //画二阶贝赛尔曲线
        mBezierPath.reset();
        mBezierPath.moveTo(mCircleStartX, mCircleStartY);
        mBezierPath.quadTo(mControlX, mControlY, mBubbleEndX, mBubbleEndY);
        mBezierPath.lineTo(mBubbleStartX, mBubbleStartY);
        mBezierPath.quadTo(mControlX, mControlY, mCircleEndX, mCircleEndY);
        mBezierPath.close();
        canvas.drawPath(mBezierPath, mBubblePaint);
    }
    //画消息个数的文本
    if (mState != STATE_DISMISS && !TextUtils.isEmpty(mText)) {
        mTextPaint.getTextBounds(mText, 0, mText.length(), mTextRect);
        canvas.drawText(mText, mBubbleCenterX - mTextRect.width() / 2, mBubbleCenterY + mTextRect.height() / 2, mTextPaint);
    }

    if (mIsExplosionAnimStart && mCurExplosionIndex < mExplosionDrawables.length) {
        //设置气泡爆炸图片的位置
        mExplosionRect.set((int) (mBubbleCenterX - mBubbleRadius), (int) (mBubbleCenterY - mBubbleRadius)
                , (int) (mBubbleCenterX + mBubbleRadius), (int) (mBubbleCenterY + mBubbleRadius));
        //根据当前进行到爆炸气泡的位置index来绘制爆炸气泡bitmap
        canvas.drawBitmap(mExplosionBitmaps[mCurExplosionIndex], null, mExplosionRect, mExplosionPaint);
    }
}