android.support.annotation.RequiresApi Java Examples

/**
 * Creates Notification Channel. This is required in Android O+ to display notifications.
 */
@RequiresApi(Build.VERSION_CODES.O)
private void createNotificationChannel() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        String name = mContext.getString(R.string.channel_name);
        String description = "Plays youtube audio";
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
        mChannel.setDescription(description);
        mChannel.enableLights(true);
        mChannel.setLightColor(Color.parseColor("#5B3C88"));
        mChannel.enableVibration(true);
        NotificationManager manager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
        manager.createNotificationChannel(mChannel);
    }


}
 

@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@MainThread
public static void startActivityForResult(@NonNull final Activity activity, @NonNull final LifecycleOwner lifecycleOwner,
                                          @NonNull final Intent intent, final int requestCode,
                                          @Nullable final Bundle options,
                                          @NonNull final ActivityResultCallback resultCallback) {
    ThreadUtility.checkUIThread();
    if (isDestroyed(activity, lifecycleOwner)) {
        return;
    }
    final SceneActivityCompatibilityLayerFragment fragment = install(activity);
    if (fragment.isAdded()) {
        fragment.startActivityForResultByScene(lifecycleOwner, intent, requestCode, options, resultCallback);
    } else {
        fragment.addOnActivityCreatedCallback(new SceneActivityCompatibilityLayerFragment.OnActivityCreatedCallback() {
            @Override
            public void onActivityCreated() {
                fragment.removeOnActivityCreatedCallback(this);
                if (isDestroyed(activity, lifecycleOwner)) {
                    return;
                }
                fragment.startActivityForResultByScene(lifecycleOwner, intent, requestCode, options, resultCallback);
            }
        });
    }
}
 

@MainThread
@RequiresApi(Build.VERSION_CODES.M)
public static void requestPermissions(@NonNull final Activity activity, @NonNull final LifecycleOwner lifecycleOwner,
                                      @NonNull final String[] permissions, final int requestCode,
                                      @NonNull final PermissionResultCallback resultCallback) {
    ThreadUtility.checkUIThread();
    if (isDestroyed(activity, lifecycleOwner)) {
        return;
    }
    final SceneActivityCompatibilityLayerFragment fragment = install(activity);
    if (fragment.isAdded()) {
        fragment.requestPermissionsByScene(lifecycleOwner, permissions, requestCode, resultCallback);
    } else {
        fragment.addOnActivityCreatedCallback(new SceneActivityCompatibilityLayerFragment.OnActivityCreatedCallback() {
            @Override
            public void onActivityCreated() {
                fragment.removeOnActivityCreatedCallback(this);
                if (isDestroyed(activity, lifecycleOwner)) {
                    return;
                }
                fragment.requestPermissionsByScene(lifecycleOwner, permissions, requestCode, resultCallback);
            }
        });
    }
}
 

private void calculateLayout() {
    if (settings == null) {
        return;
    }
    height = getMeasuredHeight();
    width = getMeasuredWidth();
    if (width > 0 && height > 0) {

        clipPath = createClipPath();
        clipPath1 = createClipPath1();
        ViewCompat.setElevation(this, settings.getElevation());
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && !settings.isCropInside()) {
            ViewCompat.setElevation(this, settings.getElevation());
            setOutlineProvider(new ViewOutlineProvider() {
                @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
                @Override
                public void getOutline(View view, Outline outline) {
                    outline.setConvexPath(clipPath);
                    outline.setConvexPath(clipPath1);
                }
            });
        }
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.KITKAT_WATCH)
private void connectHeartRateSensor() {
  int permission = ActivityCompat.checkSelfPermission(this,
    Manifest.permission.BODY_SENSORS);
  if (permission == PERMISSION_GRANTED) {
    // If permission granted, connect the event listener.
    doConnectHeartRateSensor();
  } else {
    if (ActivityCompat.shouldShowRequestPermissionRationale(
      this, Manifest.permission.BODY_SENSORS)) {
      // TODO: Display additional rationale for the requested permission.
    }

    // Request the permission
    ActivityCompat.requestPermissions(this,
      new String[]{Manifest.permission.BODY_SENSORS}, BODY_SENSOR_PERMISSION_REQUEST);
  }
}
 

@RequiresApi(api = 23)
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    //申请所有权限的回调结果：
    if (requestCode == PermissionTool.APPLY_PERMISSIONS) {
        for (int i = 0; i < permissions.length; i++) {
            if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {//如果有权限被拒绝
                Toast.makeText(this, R.string.jm_gt_without_permission, Toast.LENGTH_SHORT).show();
                finish();
                return;
            }
        }
        //如果全部都同意了就进行配置加载
        return;
    }
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mMediaProjectionManager = (MediaProjectionManager)
                                    getSystemService(Context.MEDIA_PROJECTION_SERVICE);

    ImageView iv = findViewById(R.id.power_toggle);
    iv.setOnClickListener(this);
    iv.setOnFocusChangeListener(this);
    iv.setFocusable(true);
    iv.requestFocus();

    setImageViews(mRecorderRunning, false);

    LocalBroadcastManager.getInstance(this).registerReceiver(
            mMessageReceiver, new IntentFilter(HyperionScreenService.BROADCAST_FILTER));
    checkForInstance();
}
 

@RequiresApi(api = Build.VERSION_CODES.KITKAT)
@Override
public String getSelectedProtocol(SSLSocket socket) {
    try {
        JettyNegoProvider provider =
                (JettyNegoProvider) Proxy.getInvocationHandler(getMethod.invoke(null, socket));
        if (!provider.unsupported && provider.selected == null) {
            Platform.get().log(INFO, "ALPN callback dropped: HTTP/2 is disabled. "
                    + "Is alpn-boot on the boot class path?", null);
            return null;
        }
        return provider.unsupported ? null : provider.selected;
    } catch (InvocationTargetException | IllegalAccessException e) {
        throw new AssertionError();
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.KITKAT)
@Override
public void onImageAvailable(ImageReader reader) {
    if (mListener != null && isCapturing()) {
        try {
            long now = System.nanoTime();
            Image img = reader.acquireLatestImage();
            if (img != null && now - lastFrame >= min_nano_time) {
                sendImage(img);
                img.close();
                lastFrame = now;
            } else if (img != null) {
                img.close();
            }
        } catch (final Exception e) {
            if (DEBUG) Log.w(TAG, "sendImage exception:", e);
        }
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private static void listing11_11(Context context) {
  JobScheduler jobScheduler = (JobScheduler) context.getSystemService(Context.JOB_SCHEDULER_SERVICE);
  ComponentName jobServiceName = new ComponentName(context, BackgroundJobService.class);

  // Listing 11-11: Scheduling a job with customized back-off criteria
  jobScheduler.schedule(
    new JobInfo.Builder(BACKGROUND_UPLOAD_JOB_ID, jobServiceName)
      // Require a network connection
      .setRequiredNetworkType(JobInfo.NETWORK_TYPE_ANY)
      // Require the device has been idle
      .setRequiresDeviceIdle(true)
      // Force Job to ignore constraints after 1 day
      .setOverrideDeadline(TimeUnit.DAYS.toMillis(1))
      // Retry after 30 seconds, with linear back-off
      .setBackoffCriteria(30000, JobInfo.BACKOFF_POLICY_LINEAR)
      // Reschedule after the device has been rebooted
      .setPersisted(true)
      .build());
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void initCamera() {
  cameraManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);

  String[] cameraIds = new String[0];

  try {
    cameraIds = cameraManager.getCameraIdList();
    if (cameraIds.length == 0) return;

    cameraId = cameraIds[0];
  } catch (CameraAccessException e) {
    Log.e(TAG, "Camera Error.", e);
    return;
  }
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.atom_ui_work_world_details_activity);

    mAtManager = new WorkWorldAtManager(this, CurrentPreference.getInstance().getPreferenceUserId());
    mAtManager.setTextChangeListener(this);
    bindView();

    if (getIntent().hasExtra(WORK_WORLD_DETAILS_COMMENT)) {
        showInput = getIntent().getBooleanExtra(WORK_WORLD_DETAILS_COMMENT, false);
    }

    if (getIntent().hasExtra(WORK_WORLD_DETAILS_ITEM)) {
        workWorldItem = (WorkWorldItem) getIntent().getSerializableExtra(WORK_WORLD_DETAILS_ITEM);
        startInit();
    } else {
        //此处应该请求借口开始操作
    }

    initIdentity();
    defaultSize = com.qunar.im.base.util.Utils.dipToPixels(QunarIMApp.getContext(), 96);
    iconSize = com.qunar.im.base.util.Utils.dpToPx(QunarIMApp.getContext(), 32);

    softKeyboardStateHelper = new SoftKeyboardStateHelper(findViewById(R.id.work_world_activity_main_layout));
    softKeyboardStateHelper.addSoftKeyboardStateListener(new SoftKeyboardStateHelper.SoftKeyboardStateListener() {
        @Override
        public void onSoftKeyboardOpened(int keyboardHeightInPx) {

        }

        @Override
        public void onSoftKeyboardClosed() {
            hiddenInput(false);
        }
    });

}
 

@RequiresApi(api = Build.VERSION_CODES.KITKAT)
private void drawShadow() {
    shadow = Bitmap.createBitmap(getWidth(), getHeight(), ALPHA_8);
    shadow.eraseColor(TRANSPARENT);
    Canvas c = new Canvas(shadow);
    c.drawPath(pathZigzag, paintShadow);

    RenderScript rs = RenderScript.create(getContext());
    ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, Element.U8(rs));
    Allocation input = Allocation.createFromBitmap(rs, shadow);
    Allocation output = Allocation.createTyped(rs, input.getType());
    blur.setRadius(zigzagElevation);
    blur.setInput(input);
    blur.forEach(output);
    output.copyTo(shadow);
    input.destroy();
    output.destroy();

}
 

@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public boolean startActivityIfNeeded(@RequiresPermission @NonNull Intent intent, int requestCode,
                                     @Nullable Bundle options) {
    return mContentProxy.getContext().startActivityIfNeeded(mContentProxy.setActivityIntentExtra(intent),
            requestCode, options);
}
 

@RequiresApi(api = 21)
public void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (this.mBpEmpty != null) {
    }
    canvas.drawBitmap(this.mBpEmpty, 0.0f, 0.0f, null);
    if (this.percent > 0) {
        drawPercent(canvas, this.percent);
    }
}
 

@RequiresApi(api = 21)
public void initData() {
    getWindow().setFlags(1024, 1024);
    this.mTvTitle = (LetterSpacingTextView) findViewById(R.id.tv_title);
    if (Constants.productType == ProductEnum.X8S) {
        this.mTvTitle.setText(getResources().getText(R.string.app_fimi_slogn));
    }
    this.mTvBottom = (TextView) findViewById(R.id.tv_bottom);
    this.mTvBottom.setText(getSpannableString());
    FontUtil.changeFontLanTing(getAssets(), this.mTvTitle, this.mTvBottom);
    this.mBitmapLoadTaskInstance = BitmapLoadTaskInstance.getInstance();
    this.mBitmapLoadTaskInstance.setImage(ImageSource.asset("login_bg.jpg"), this.mContext);
    ((ImageView) findViewById(R.id.img_splash)).setBackgroundResource(getMetaDataInt(this, getString(R.string.splash_icon)));
    this.mApkVersionManager = new ApkVersionManager();
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void setOrientation(int orientation) {
    if (mVirtualDisplay != null && orientation != mCurrentOrientation) {
        mCurrentOrientation = orientation;
        mIsCapturing = false;
        mVirtualDisplay.resize(getGrabberWidth(), getGrabberHeight(), mDensity);
        mImageReader.close();
        setImageReader();
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public VideoContainerLayout(
        @NonNull Context context,
        @Nullable AttributeSet attrs,
        int defStyleAttr,
        int defStyleRes) {
    super(context, attrs, defStyleAttr, defStyleRes);
    gestureDetector = new RongRTCGestureDetector(context, null);
    gestureDetector.setLayoutEvents(this);
}
 

@RequiresApi(api = Build.VERSION_CODES.KITKAT)
private void clearInputMethodManagerLeak() {
    try {
        Object lock = mHField.get(inputMethodManager);
        // This is highly dependent on the InputMethodManager implementation.
        synchronized (lock) {
            View servedView = (View) mServedViewField.get(inputMethodManager);
            if (servedView != null) {

                boolean servedViewAttached = servedView.getWindowVisibility() != View.GONE;

                if (servedViewAttached) {
                    // The view held by the IMM was replaced without a global focus change. Let's make
                    // sure we get notified when that view detaches.

                    // Avoid double registration.
                    servedView.removeOnAttachStateChangeListener(this);
                    servedView.addOnAttachStateChangeListener(this);
                } else {
                    // servedView is not attached. InputMethodManager is being stupid!
                    Activity activity = extractActivity(servedView.getContext());
                    if (activity == null || activity.getWindow() == null) {
                        // Unlikely case. Let's finish the input anyways.
                        finishInputLockedMethod.invoke(inputMethodManager);
                    } else {
                        View decorView = activity.getWindow().peekDecorView();
                        boolean windowAttached = decorView.getWindowVisibility() != View.GONE;
                        if (!windowAttached) {
                            finishInputLockedMethod.invoke(inputMethodManager);
                        } else {
                            decorView.requestFocusFromTouch();
                        }
                    }
                }
            }
        }
    } catch (IllegalAccessException | InvocationTargetException unexpected) {
        Log.e("IMMLeaks", "Unexpected reflection exception", unexpected);
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void startActivityFromFragment(@NonNull android.app.Fragment fragment, Intent intent,
                                      int requestCode, @Nullable Bundle options) {
    mContentProxy.getContext()
            .startActivityFromFragment(fragment,
                    mContentProxy.setActivityIntentExtra(intent), requestCode, options);
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public synchronized void init(Context appContext,
    RCRTCVideoOutputStream outputStream, Intent mediaProjectionData, int width, int height) {

    this.mOutputStream = outputStream;
    this.mSurfaceTextureHelper = RongRTCSurfaceTextureHelper
        .create("ScreenCapturer", RongRTCVideoViewManager.getInstance().getBaseContext());

    this.mMediaProjectionData = mediaProjectionData;

    this.mediaProjectionManager = (MediaProjectionManager)
        appContext.getSystemService(Context.MEDIA_PROJECTION_SERVICE);
    this.mMediaProjection = mediaProjectionManager
        .getMediaProjection(Activity.RESULT_OK, this.mMediaProjectionData);
    this.mVirtualDisplay = createVirtualDisplay(width, height);
    outputStream.setSource(new IRCRTCVideoSource() {
        @Override
        public void onInit(IRCVideoConsumer observer) {
            videoConsumer = observer;
        }

        @Override
        public void onStart() {
            enabled = true;
        }

        @Override
        public void onStop() {
            enabled = false;
        }

        @Override
        public void onDispose() {
            videoConsumer = null;
        }
    });
}
 

/**
 * 获取系统首选语言
 *
 * @return Locale
 */
@RequiresApi(api = Build.VERSION_CODES.N)
public static Locale getSystemPreferredLanguage() {
    Locale locale;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        locale = LocaleList.getDefault().get(0);
    } else {
        locale = Locale.getDefault();
    }
    return locale;
}
 

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@SuppressLint("ResourceAsColor")
@Override
protected void convert(final BaseViewHolder helper, final WorkWorldItem item) {
    showWorkWorld(helper, item,mActivity,mRecyclerView,openDetailsListener,onClickListener, true);

}
 

@RequiresApi(api = Build.VERSION_CODES.N_MR1)
public ShortcutUtils(Activity context) {
    this.context = context;
    shortcutManager = context.getSystemService(ShortcutManager.class);
    dynamicShortcutInfos = new ArrayList<>();
    disabledDynamicShortCutIds = new ArrayList<>();
    enabledDynamicShortCutIds = new ArrayList<>();
    removedDynamicShortCutIds = new ArrayList<>();
    removedPinnedShortCutIds = new ArrayList<>();
    enabledPinnedShortCutIds = new ArrayList<>();
}
 

@RequiresApi(Build.VERSION_CODES.M)
@Override
public ColorStateList getColorStateList(int id, Theme theme) throws NotFoundException {
    try {
        return super.getColorStateList(id, theme);
    } catch (NotFoundException e) {
        return mHostResources.getColorStateList(id, theme);
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
    loadingError = true;
    if (externalClient != null)
        externalClient.onReceivedError(view, request, error);
}
 

@RequiresApi(api = Build.VERSION_CODES.O)
public void requestPinnedShortcut(Shortcut shortcut) {
    returnIntent(shortcut);
    returnShortcutInfo(shortcut);
    PendingIntent successCallback = PendingIntent.getBroadcast(context, 0,
            pinnedShortcutCallbackIntent, 0);
    if (shortcutManager != null) {
        shortcutManager.requestPinShortcut(returnShortcutInfo(shortcut),
                successCallback.getIntentSender());
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.N_MR1)
public void removeDynamicShortCut(Shortcut shortcut) {
    if (shortcutManager != null) {
        removedDynamicShortCutIds.add(shortcut.getShortcutId());
        shortcutManager.removeDynamicShortcuts(removedDynamicShortCutIds);
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.ECLAIR_MR1)
private void initWebView() {
    webSetting = webView.getSettings();
    webSetting.setDefaultTextEncodingName("utf-8");
    webSetting.setJavaScriptEnabled(true);  //必须保留
    webSetting.setDomStorageEnabled(true);//保留,否则无法播放优酷视频网页
    webView.setWebChromeClient(new MyWebChromeClient());//重写一下
    webView.setWebViewClient(new MyWebViewClient());
    loadUrl(url);
}
 

/**
 * Return the application's width of screen, in pixel.
 *
 * @return the application's width of screen, in pixel
 */
@RequiresApi(api = Build.VERSION_CODES.HONEYCOMB_MR2)
public static int getAppScreenWidth(@NonNull final Context context) {
    WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    if (wm == null) return -1;
    Point point = new Point();
    wm.getDefaultDisplay().getSize(point);
    return point.x;
}