一、今天完成的事情

获取当前设备所有的传感器

源码中的Seneor类有如下实例域

/* Some of these fields are set only by the native bindings in
 * SensorManager.
 */
private String  mName;
private String  mVendor;
private int     mVersion;
private int     mHandle;
private int     mType;
private float   mMaxRange;
private float   mResolution;
private float   mPower;
private int     mMinDelay;
private int     mFifoReservedEventCount;
private int     mFifoMaxEventCount;
private String  mStringType;
private String  mRequiredPermission;
private int     mMaxDelay;
private int     mFlags;
private int     mId;

具体实现

/**
 * 获取当前设备所有传感器的具体情况
 */
public void getAllSensorsSituation() {
    List<Sensor> sensors = mSensorManager.getSensorList(Sensor.TYPE_ALL);
    StringBuilder sb = new StringBuilder();
    sb.append("该机共有" + sensors.size() + "个传感器");
    int i = 1;
    String s;
    for (Sensor sensor : sensors) {
        sb.append("\n" + i);
        sb.append("\n名称：" + sensor.getName());
        sb.append("\n供应商：" + sensor.getVendor());
        sb.append("\n版本：" + sensor.getVersion());
        if (Build.VERSION.SDK_INT < 20) {
            sb.append("\n类型：" + sensor.getType());
        } else {
            s = sensor.getStringType();
            sb.append("\n类型：" + (s.substring(s.lastIndexOf(".") + 1)).toUpperCase());
        }
        sb.append("\n######");
        i += 1;
    }
    Log.i(TAG, "getAllSensorsSituation: " + sb.toString());
}

在Fragment中修改Activity中的ToolBar的menu

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //指明fragment愿意添加item到选项菜单(否则, fragment将接收不到对 onCreateOptionsMenu()的调用)
    setHasOptionsMenu(true);
}

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    menu.clear();
    super.onCreateOptionsMenu(menu, inflater);
    inflater.inflate(R.menu.local_video_menu, menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.take_video:
            takeVideo();
            break;
        case R.id.refresh:
            initVideo();
            break;
        default:
            break;
    }
    return true;
}

二、明天计划的事情

事假

三、遇到的问题    

四、收获