Android动态获取传感器数据
开发环境：Android studio 2.2.1
项目使用自带的Scrolling Activity
附上布局文件，我随便写的，懒得用include
xml version="1.0" encoding="utf-8"?> <android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context="com.example.****************.sensor.ScrollingActivity" tools:showIn="@layout/activity_scrolling"> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content"> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content"> <LinearLayout android:orientation="vertical" android:gravity="center_horizontal" android:layout_width="match_parent" android:background="@android:color/holo_orange_light" android:layout_height="wrap_content" android:layout_margin="16dp"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" app:srcCompat="@drawable/pressures" android:id="@+id/imageView" /> <TextView android:text="压力" android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/textView" android:textSize="18dp" android:textStyle="normal|bold" android:layout_marginLeft="10dp" android:layout_marginBottom="10dp" android:textColor="@android:color/background_light" /> LinearLayout> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="16dp" android:paddingRight="16dp" android:background="@android:color/background_light"> <TextView android:text="hPa ***" android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/textView2" android:textStyle="normal|bold" android:textSize="18dp" /> LinearLayout> LinearLayout> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="30dp"> <LinearLayout android:orientation="vertical" android:gravity="center_horizontal" android:layout_width="match_parent" android:background="?android:attr/colorControlHighlight" android:layout_height="wrap_content" android:layout_margin="16dp"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" app:srcCompat="@drawable/light" android:id="@+id/imageView2" /> <TextView android:text="光照" android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/textView3" android:textSize="18dp" android:textStyle="normal|bold" android:layout_marginLeft="10dp" android:layout_marginBottom="10dp" android:textColor="@android:color/background_light" /> LinearLayout> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="16dp" android:paddingRight="16dp" android:background="@android:color/background_light"> <TextView android:text="lx ***" android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/textView4" android:textStyle="normal|bold" android:textSize="18dp" /> LinearLayout> LinearLayout> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:orientation="vertical" android:gravity="center_horizontal" android:layout_width="match_parent" android:background="@android:color/holo_orange_light" android:layout_height="wrap_content" android:layout_margin="16dp"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" app:srcCompat="@drawable/battery_full" android:id="@+id/imageView3" /> <TextView android:text="电池" android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/textView5" android:textSize="18dp" android:textStyle="normal|bold" android:layout_marginLeft="10dp" android:layout_marginBottom="10dp" android:textColor="@android:color/background_light" /> LinearLayout> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="16dp" android:paddingRight="16dp" android:background="@android:color/background_light"> <TextView android:text="电量级别: **%" android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/textView6" android:textStyle="normal|bold" android:textSize="18dp" /> <TextView android:text="温度: **" android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/textView7" android:textStyle="normal|bold" android:textSize="18dp" /> LinearLayout> LinearLayout> LinearLayout> android.support.v4.widget.NestedScrollView>
实现部分
package com.example.*******.sensor; import android.app.Service; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware.SensorManager; import android.os.BatteryManager; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.Snackbar; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.View; import android.view.Menu; import android.view.MenuItem; import android.widget.TextView; public class ScrollingActivity extends AppCompatActivity implements SensorEventListener{ TextView TVAirPressure,TVLight,TVbatteryLever,TVbatteryTemperation; private SensorManager sensorManager,lightsensorManager; private Sensor mLight; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_scrolling); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); TVAirPressure=(TextView)findViewById(R.id.textView2); TVLight=(TextView)findViewById(R.id.textView4); TVbatteryLever=(TextView)findViewById(R.id.textView6); TVbatteryTemperation=(TextView)findViewById(R.id.textView7); setSupportActionBar(toolbar); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show(); } }); lightsensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); mLight = lightsensorManager.getDefaultSensor(Sensor.TYPE_LIGHT); sensorManager = (SensorManager) getSystemService(Service.SENSOR_SERVICE); this.registerReceiver(this.mBatInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_scrolling, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } @Override protected void onResume() { // register this class as a listener for the Pressure Sensor lightsensorManager.registerListener(this, mLight, SensorManager.SENSOR_DELAY_FASTEST); sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_PRESSURE), SensorManager.SENSOR_DELAY_NORMAL); super.onResume(); } // called when sensor value have changed @Override public void onSensorChanged(SensorEvent event) { if (event.sensor.getType() == Sensor.TYPE_LIGHT) { float[] values = event.values; TVLight.setText("lx "+values[0]); } if (event.sensor.getType() == Sensor.TYPE_PRESSURE) { float[] values = event.values; TVAirPressure.setText("hpa "+values[0]); } } @Override public void onAccuracyChanged(Sensor sensor, int accuracy) { } @Override protected void onPause() { lightsensorManager.unregisterListener(this); sensorManager.unregisterListener(this); super.onPause(); } private BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver(){ @Override public void onReceive(Context ctxt, Intent intent) { int level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); TVbatteryLever.setText("电量级别: "+String.valueOf(level) + "%"); float temperation=intent.getIntExtra(BatteryManager.EXTRA_TEMPERATURE,0)/10; 这里要除10，不信你可以试试 TVbatteryTemperation.setText("温度: "+String.valueOf(temperation)+"°C"); } }; }