Android指南针app，可显示方向/海拔/大气压
package perseverance.li.compass;
import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.location.Criteria;
import android.os.Bundle;
import android.os.Handler;
import android.text.TextUtils;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.AccelerateInterpolator;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.Locale;
import perseverance.li.compass.view.CompassView;
public class CompassActivity extends Activity {
private final float MAX_ROATE_DEGREE = 1.0f;
private SensorManager mSensorManager;
private Sensor mOrientationSensor;
private Sensor mPressureSensor;
private float mDirection;
private float mTargetDirection;
private AccelerateInterpolator mInterpolator;
protected final Handler mHandler = new Handler();
private boolean mStopDrawing;
private boolean mChinease;
View mCompassView;
CompassView mPointer;
TextView mAltitudeTextView;
TextView mPressureTextView;
LinearLayout mDirectionLayout;
LinearLayout mAngleLayout;
protected Runnable mCompassViewUpdater = new Runnable() {
@Override
public void run() {
if (mPointer != null && !mStopDrawing) {
if (mDirection != mTargetDirection) {
// calculate the short routine
float to = mTargetDirection;
if (to - mDirection > 180) {
to -= 360;
} else if (to - mDirection < -180) {
to = 360;
}
// limit the max speed to MAX_ROTATE_DEGREE
float distance = to - mDirection;
if (Math.abs(distance) > MAX_ROATE_DEGREE) {
distance = distance > 0 ? MAX_ROATE_DEGREE : (-1.0f * MAX_ROATE_DEGREE);
}
// need to slow down if the distance is short
mDirection = normalizeDegree(mDirection
((to - mDirection) * mInterpolator.getInterpolation(Math
.abs(distance) > MAX_ROATE_DEGREE ? 0.4f : 0.3f)));
mPointer.updateDirection(mDirection);
}
updateDirection();
mHandler.postDelayed(mCompassViewUpdater, 20);
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.compass_layout);
initResources();
initServices();
}
@Override
protected void onResume() {
super.onResume();
if (mOrientationSensor != null) {
mSensorManager.registerListener(mOrientationSensorEventListener, mOrientationSensor,
SensorManager.SENSOR_DELAY_GAME);
}
if (mPressureSensor != null) {
mSensorManager.registerListener(mPressureSensorEventListener, mPressureSensor,
SensorManager.SENSOR_DELAY_GAME);
}
mStopDrawing = false;
mHandler.postDelayed(mCompassViewUpdater, 20);
}
@Override
protected void onPause() {
super.onPause();
mStopDrawing = true;
if (mOrientationSensor != null) {
mSensorManager.unregisterListener(mOrientationSensorEventListener);
}
if (mPressureSensor != null) {
mSensorManager.unregisterListener(mPressureSensorEventListener);
}
}
private void initResources() {
mDirection = 0.0f;
mTargetDirection = 0.0f;
mInterpolator = new AccelerateInterpolator();
mStopDrawing = true;
mChinease = TextUtils.equals(Locale.getDefault().getLanguage(), "zh");
mCompassView = findViewById(R.id.view_compass);
mPointer = (CompassView) findViewById(R.id.compass_pointer);
mAltitudeTextView = (TextView) findViewById(R.id.textview_altitude);
mPressureTextView = (TextView) findViewById(R.id.textview_pressure);
mDirectionLayout = (LinearLayout) findViewById(R.id.layout_direction);
mAngleLayout = (LinearLayout) findViewById(R.id.layout_angle);
mPointer.setImageResource(mChinease ? R.mipmap.compass_cn : R.mipmap.compass);
}
private void initServices() {
// sensor manager
mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
mOrientationSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION);
mPressureSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PRESSURE);
// location manager
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(false);
criteria.setBearingRequired(false);
criteria.setCostAllowed(true);
criteria.setPowerRequirement(Criteria.POWER_LOW);
}
private void updateDirection() {
LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
mDirectionLayout.removeAllViews();
mAngleLayout.removeAllViews();
ImageView east = null;
ImageView west = null;
ImageView south = null;
ImageView north = null;
float direction = normalizeDegree(mTargetDirection * -1.0f);
if (direction > 22.5f && direction < 157.5f) {
// east
east = new ImageView(this);
east.setImageResource(mChinease ? R.mipmap.e_cn : R.mipmap.e);
east.setLayoutParams(lp);
} else if (direction > 202.5f && direction < 337.5f) {
// west
west = new ImageView(this);
west.setImageResource(mChinease ? R.mipmap.w_cn : R.mipmap.w);
west.setLayoutParams(lp);
}
if (direction > 112.5f && direction < 247.5f) {
// south
south = new ImageView(this);
south.setImageResource(mChinease ? R.mipmap.s_cn : R.mipmap.s);
south.setLayoutParams(lp);
} else if (direction < 67.5 || direction > 292.5f) {
// north
north = new ImageView(this);
north.setImageResource(mChinease ? R.mipmap.n_cn : R.mipmap.n);
north.setLayoutParams(lp);
}
if (mChinease) {
// east/west should be before north/south
if (east != null) {
mDirectionLayout.addView(east);
}
if (west != null) {
mDirectionLayout.addView(west);
}
if (south != null) {
mDirectionLayout.addView(south);
}
if (north != null) {
mDirectionLayout.addView(north);
}
} else {
if (south != null) {
mDirectionLayout.addView(south);
}
if (north != null) {
mDirectionLayout.addView(north);
}
if (east != null) {
mDirectionLayout.addView(east);
}
if (west != null) {
mDirectionLayout.addView(west);
}
}
int direction2 = (int) direction;
boolean show = false;
if (direction2 >= 100) {
mAngleLayout.addView(getNumberImage(direction2 / 100));
direction2 %= 100;
show = true;
}
if (direction2 >= 10 || show) {
mAngleLayout.addView(getNumberImage(direction2 / 10));
direction2 %= 10;
}
mAngleLayout.addView(getNumberImage(direction2));
ImageView degreeImageView = new ImageView(this);
degreeImageView.setImageResource(R.mipmap.degree);
degreeImageView.setLayoutParams(lp);
mAngleLayout.addView(degreeImageView);
}
private ImageView getNumberImage(int number) {
ImageView image = new ImageView(this);
LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
switch (number) {
case 0:
image.setImageResource(R.mipmap.number_0);
break;
case 1:
image.setImageResource(R.mipmap.number_1);
break;
case 2:
image.setImageResource(R.mipmap.number_2);
break;
case 3:
image.setImageResource(R.mipmap.number_3);
break;
case 4:
image.setImageResource(R.mipmap.number_4);
break;
case 5:
image.setImageResource(R.mipmap.number_5);
break;
case 6:
image.setImageResource(R.mipmap.number_6);
break;
case 7:
image.setImageResource(R.mipmap.number_7);
break;
case 8:
image.setImageResource(R.mipmap.number_8);
break;
case 9:
image.setImageResource(R.mipmap.number_9);
break;
}
image.setLayoutParams(lp);
return image;
}
private SensorEventListener mOrientationSensorEventListener = new SensorEventListener() {
@Override
public void onSensorChanged(SensorEvent event) {
float direction = event.values[0] * -1.0f;
mTargetDirection = normalizeDegree(direction);
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
};
private SensorEventListener mPressureSensorEventListener = new SensorEventListener() {
@Override
public void onSensorChanged(SensorEvent event) {
mAltitudeTextView.setText(getString(R.string.altitude, (int) calculateAltitude(event.values[0])));
mPressureTextView.setText(getString(R.string.pressure, event.values[0] / 10));
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
};
private float calculateAltitude(float pressure) {
float sp = 1013.25f; //standard pressure
return (sp - pressure) * 100.0f / 12.7f;
}
private float normalizeDegree(float degree) {
return (degree 720) % 360;
}
}
资源文件列表
.gradle/4.1/fileChanges/last-build.bin , 1
.gradle/4.1/fileContent/fileContent.lock , 17
.gradle/4.1/fileHashes/fileHashes.bin , 193851
.gradle/4.1/fileHashes/fileHashes.lock , 17
.gradle/4.1/fileHashes/resourceHashesCache.bin , 18905
.gradle/4.1/javaCompile/classAnalysis.bin , 690231
.gradle/4.1/javaCompile/jarAnalysis.bin , 315560
.gradle/4.1/javaCompile/javaCompile.lock , 17
.gradle/4.1/javaCompile/taskHistory.bin , 37974
.gradle/4.1/javaCompile/taskJars.bin , 19466
.gradle/4.1/taskHistory/fileSnapshots.bin , 710464
.gradle/4.1/taskHistory/taskHistory.bin , 60110
.gradle/4.1/taskHistory/taskHistory.lock , 17
.gradle/buildOutputCleanup/built.bin , 0
.gradle/buildOutputCleanup/cache.properties , 51
.gradle/buildOutputCleanup/cache.properties.lock , 2
.idea/.name , 7
.idea/compiler.xml , 686
.idea/copyright/profiles_settings.xml , 74
.idea/encodings.xml , 159
.idea/gradle.xml , 703
.idea/libraries/com_android_support_animated_vector_drawable_23_2_1.xml , 886
.idea/libraries/com_android_support_appcompat_v7_23_2_1.xml , 802
.idea/libraries/com_android_support_support_annotations_23_2_1_jar.xml , 701
.idea/libraries/com_android_support_support_v4_23_2_1.xml , 958
.idea/libraries/com_android_support_support_vector_drawable_23_2_1.xml , 879
.idea/libraries/junit_junit_4_12_jar.xml , 487
.idea/libraries/org_hamcrest_hamcrest_core_1_3_jar.xml , 543
.idea/misc.xml , 2134
.idea/modules.xml , 351
.idea/runConfigurations.xml , 564
.idea/vcs.xml , 180
.idea/workspace.xml , 125990
Compass.iml , 940
README.md , 163
app/.gitignore , 7
app/app.iml , 9526
app/build/generated/mockable-android-23.v3.jar , 2319890
app/build/generated/source/buildConfig/androidTest/debug/perseverance/li/compass/test/BuildConfig.java , 463
app/build/generated/source/buildConfig/debug/perseverance/li/compass/BuildConfig.java , 453
app/build/generated/source/r/androidTest/debug/perseverance/li/compass/test/R.java , 362973
app/build/generated/source/r/debug/android/support/graphics/drawable/R.java , 263
app/build/generated/source/r/debug/android/support/graphics/drawable/animated/R.java , 272
app/build/generated/source/r/debug/android/support/v4/R.java , 248
app/build/generated/source/r/debug/android/support/v7/appcompat/R.java , 96847
app/build/generated/source/r/debug/perseverance/li/compass/R.java , 362210
app/build/intermediates/blame/res/androidTest/debug/multi-v2/debug.json , 117717
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-af.json , 1087
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-am.json , 1084
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ar.json , 1088
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-az-rAZ.json , 1083
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-bg.json , 1090
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-bn-rBD.json , 1108
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ca.json , 1090
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-cs.json , 1088
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-da.json , 1086
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-de.json , 1088
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-el.json , 1091
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-en-rAU.json , 1102
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-en-rGB.json , 1102
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-en-rIN.json , 1102
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-es-rUS.json , 1107
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-es.json , 1089
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-et-rEE.json , 1107
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-eu-rES.json , 1105
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-fa.json , 1089
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-fi.json , 1086
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-fr-rCA.json , 1107
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-fr.json , 1091
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-gl-rES.json , 1106
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-gu-rIN.json , 1104
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-h320dp-v13.json , 788
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-h720dp-v13.json , 788
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-hdpi-v4.json , 817
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-hi.json , 1089
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-hr.json , 1088
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-hu.json , 1091
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-hy-rAM.json , 1104
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-in.json , 1089
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-is-rIS.json , 1101
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-it.json , 1087
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-iw.json , 1085
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ja.json , 1082
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ka-rGE.json , 1105
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-kk-rKZ.json , 1104
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-km-rKH.json , 1103
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-kn-rIN.json , 1106
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ko.json , 1080
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ky-rKG.json , 1104
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-land.json , 839
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-large-v4.json , 968
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ldltr-v21.json , 785
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-lo-rLA.json , 1102
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-lt.json , 1091
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-lv.json , 1090
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-mk-rMK.json , 1067
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ml-rIN.json , 1107
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-mn-rMN.json , 1103
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-mr-rIN.json , 1106
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ms-rMY.json , 1105
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-my-rMM.json , 1107
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-nb.json , 1084
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ne-rNP.json , 1108
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-night-v8.json , 872
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-nl.json , 1091
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-pa-rIN.json , 1102
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-pl.json , 1089
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-port.json , 764
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-pt-rBR.json , 1107
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-pt-rPT.json , 1107
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-pt.json , 1091
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ro.json , 1091
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ru.json , 1090
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-si-rLK.json , 1105
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-sk.json , 1087
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-sl.json , 1089
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-sq-rAL.json , 1105
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-sr.json , 1089
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-sv.json , 1088
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-sw.json , 1087
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-sw600dp-v13.json , 897
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ta-rIN.json , 1106
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-te-rIN.json , 1107
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-th.json , 1087
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-tl.json , 1092
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-tr.json , 1087
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-uk.json , 1088
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-ur-rPK.json , 1104
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-uz-rUZ.json , 1088
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v11.json , 1142
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v12.json , 853
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v13.json , 760
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v14.json , 980
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v17.json , 1062
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v18.json , 759
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v21.json , 2711
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v22.json , 853
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-v23.json , 982
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-vi.json , 1090
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-w360dp-v13.json , 788
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-w480dp-v13.json , 803
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-w500dp-v13.json , 788
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-w600dp-v13.json , 803
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-w720dp-v13.json , 788
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-xlarge-land-v4.json , 804
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-xlarge-v4.json , 905
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-zh-rCN.json , 1095
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-zh-rHK.json , 1095
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-zh-rTW.json , 1095
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values-zu.json , 1090
app/build/intermediates/blame/res/androidTest/debug/multi-v2/values.json , 13250
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