android 怎么获取手机里面所有的信息并显示出来

Question

就是把手机里面多有的传感器数据获取到，然后显示在界面上？求大神解决。

Answer 1

方向感知器： Sensor.TYPE_ORIENTATION
加速感知器： Sensor.TYPE_ACCELEROMETER
光線感知器: Sensor.TYPE_LIGHT
磁場感知器： Sensor.TYPE_MAGNETIC_FIELD
距離感應器：Volp. ： Sensor.TYPE_TEMPERATURE

//取得某種類型的感應器

Sensor sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);

//註冊監聽

sensorManager.registerListener(listener, sensor, SensorManager.SENSOR_DELAY_GAME);

上面第三個參數為取樣率

最快：SensorManager.SENSOR_DELAY_FASTEST
遊戲：SensorManager.SENSOR_DELAY_GAME
普通：SensorManager.SENSOR_DELAY_NORMAL
使用者介面：普通：SensorManager.SENSOR_DELAY_DRMAL

用取得加速感測器資料舉例:

//MainActivity.java
package aaa.android.com.myapplication123;

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    private TextView textView;
    private MySensorEventListener sensorEventListener = new MySensorEventListener();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textView = (TextView) findViewById(R.id.text_view);
        
        //获取管理器
        SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

        //获取加速度感应器 
        Sensor sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        sensorManager.registerListener(sensorEventListener, sensor, SensorManager.SENSOR_DELAY_NORMAL); 
    }

    private final class MySensorEventListener implements SensorEventListener {
        //传感器实时变化值
        @Override
        public void onSensorChanged(SensorEvent event) {
            if(event.sensor.getType()==Sensor.TYPE_ACCELEROMETER) {
                float x = event.values[0];
                float y = event.values[1];
                float z = event.values[2];
                String result = "X= " + x + "\n"
                        + "Y= " + y + "\n"
                        + "Z= " + z;
                textView.setText(result);
            }
        }

        @Override
        public void onAccuracyChanged(Sensor sensor, int accuracy) {

        }
    }
}


//activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="30dp"
    tools:context="aaa.android.com.myapplication123.MainActivity">
    
    <!--定义一个textview用来显示结果-->
    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="test"
        android:textSize="30sp"
        android:id="@+id/text_view"/>

</LinearLayout>