小编Sir*_*oss的帖子

在Android 2.2仿真器上,"geo fix"命令似乎无法正常工作.模拟器响应"OK",并onLocationChanged()在我的程序中正确调用.然而,Location对象似乎并不完整 - 它可以很好地记录纬度和经度,但它不包含高度读数:hasAltitude()返回false.

有什么想法吗？

示例模拟器命令:

geo fix -74 40.75 500
geo fix -77 39 400.0

代码段:

public void onLocationChanged(Location loc) {
    System.out.println("onLocationChanged Called");
    if (loc.hasAltitude()) {
        double newalt = loc.getAltitude();
        System.out.println("new altitude: " + newalt);
        gps[ALTITUDE] = newalt;
    } else {
        System.out.println("No altitude fix");
    }
    gps[LONG] = loc.getLongitude();
    System.out.println(gps[LONG]);
    gps[LAT] = loc.getLatitude();
    System.out.println(gps[LAT]);
}

样本输出:

onLocationChanged Called
No altitude fix
-74.012333333333333333
40.756666666666666667
onLocationChanged Called
No altitude fix
-77.012833333333333335
39.006499999999999996

在Motorola Droid上,Firmware 2.1-update1,Kernel 2.9.29-omap1,Build#ESE81

在尝试拍照时,mediaserver会因分段错误而死亡.

我已经尝试放入takePicture计时器并在相机初始化后几秒钟运行它以检查竞争条件,但没有变化.只是打电话Camera.open()不会导致崩溃.此外,呼叫Camera.open() 导致我认为自动对焦马达产生一种滴答声.

破解的代码:

import android.app.Activity;
import android.os.Bundle;

public final class ChopperMain extends Activity {
    public void onCreate(Bundle savedInstanceState) {
    try {
        Camera camera = Camera.open();
        catch (Exception e) {
            e.printStackTrace();
        }
        camera.takePicture(
                new Camera.ShutterCallback() {
                    public void onShutter() {
                        ;
                    }
                }, 
                new Camera.PictureCallback() {
                    public void onPictureTaken(byte[] data, Camera camera) {
                        ;
                    }
                },
                new Camera.PictureCallback() {
                    public void onPictureTaken(byte[] data, Camera camera) {
                        ;
                    }
                },
            new PictureCallback() …