Android 指南针传感器

[android]代码库

	public void onSensorChanged(int sensor, float[] values) {
		synchronized (this) {
			if (sensor == SensorManager.SENSOR_ORIENTATION) {
				Log.d(TAG, "onSensorChanged: " + sensor + ", x: " + values[0]
						+ ", y: " + values[1] + ", z: " + values[2]);

				// OrientText.setText("--- NESW ---");
				if (Math.abs(values[0] - DegressQuondam) < 1)
					return;

				switch ((int) values[0]) {
				case 0: // North 北
					OrientText.setText("正北");
					break;
				case 90: // East 东
					OrientText.setText("正东");
					break;
				case 180: // South 南
					OrientText.setText("正南");
					break;
				case 270: // West 西
					OrientText.setText("正西");
					break;
				default: {
					int v = (int) values[0];
					if (v > 0 && v < 90) {
						OrientText.setText("北偏东" + v);
					}

					if (v > 90 && v < 180) {
						v = 180 - v;
						OrientText.setText("南偏东" + v);
					}

					if (v > 180 && v < 270) {
						v = v - 180;
						OrientText.setText("南偏西" + v);
					}
					if (v > 270 && v < 360) {
						v = 360 - v;
						OrientText.setText("北偏西" + v);
					}
				}
				}

				((TextView) findViewById(R.id.OrientValue)).setText(String
						.valueOf(values[0]));

				if (DegressQuondam != -values[0])
					AniRotateImage(-values[0]);
			}

			// if (sensor == SensorManager.SENSOR_ACCELEROMETER) { // //}

		}
	}

	public void onAccuracyChanged(int sensor, int accuracy) {
		Log.d(TAG, "onAccuracyChanged: " + sensor + ", accuracy: " + accuracy);
	}