Android(安卓)2.1 GPS定位和拍照功能代码

1、GPS功能代码

private void getLocation(){LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 200, 0, locationListener);}private final LocationListener locationListener = new LocationListener() {    public void onLocationChanged(Location location) { //当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发        // log it when the location changes        if (location != null) {        Lat.setText(String.valueOf(location.getLatitude()));        Lon.setText(String.valueOf(location.getLongitude()));        }    }    public void onProviderDisabled(String provider) {    // Provider被disable时触发此函数，比如GPS被关闭    }    public void onProviderEnabled(String provider) {    //  Provider被enable时触发此函数，比如GPS被打开    }    public void onStatusChanged(String provider, int status, Bundle extras) {    // Provider的转态在可用、暂时不可用和无服务三个状态直接切换时触发此函数    }};

2、拍照功能代码

public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);     // Hide the window title.requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.main);        imageView = (ImageView) this.findViewById(R.id.iv1);Button button = (Button) this.findViewById(R.id.bt1);button.setOnClickListener(new OnClickListener() {public void onClick(View v) {Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);startActivityForResult(intent, 0);}});    }@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if (requestCode == 0 && resultCode == Activity.RESULT_OK) {this.imageView.setImageDrawable(Drawable.createFromPath(new File(Environment.getExternalStorageDirectory(), "temp.jpg").getAbsolutePath()));}}

3、退出程序确认

public boolean onKeyDown(int keyCode, KeyEvent event) {//按下键盘上返回按钮if(keyCode == KeyEvent.KEYCODE_BACK){new AlertDialog.Builder(Main.this)// Main.this视情况而定，这个一般是指当前显示的Activity对应的XML视窗。.setTitle("")// 设置对话框的标题.setMessage(" 确定退出? ")// 设置对话框的内容.setPositiveButton("确定",// 设置对话框的确认按钮    new DialogInterface.OnClickListener() {// 设置确认按钮的事件        public void onClick(DialogInterface dialog, int which) {            //退出程序            android.os.Process.killProcess(android.os.Process.myPid());    }}).setNegativeButton("取消",// 设置对话框的取消按钮    new DialogInterface.OnClickListener() {// 设置取消按钮的事件        public void onClick(DialogInterface dialog, int which) {            // 如果你什么操作都不做，可以选择不写入任何代码            dialog.cancel();    }}).show();return true;}else{return super.onKeyDown(keyCode, event);}}

1、GPS功能代码

2、拍照功能代码

3、退出程序确认

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