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嗨，伙计们，gals java neanderthal再次陷入困境。我正在制作一个Android应用程序，作为我大学最后一个项目的一部分。这个活动大约是三个活动，它是在照相机拍摄照片/画廊（这是工作正常）后的缩略图图像查看器。问题是显示我将最终发送到数据库与图片的gps co-ords。由于未处理运行时权限（API 23+），我发现了致命错误，我找到了答案并认为它没问题。但是，我没有崩溃或产生任何错误，但我没有得到对话框寻找权限，或敬酒告诉我，我是否有权限。我也无法在文本视图中为这些值设置文本。我希望你能给我提供任何帮助。提前致谢！ package com.example.gary.natureallv2;Android gps权限
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.location.Location;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.Manifest;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.FusedLocationProviderApi;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
public class CameraPicActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
public static final int CAMERA_REQUEST = 10;
public static final int IMAGE_GALLERY_REQUEST = 20;
private ImageView ivPicSelected;
private FusedLocationProviderApi locationProviderApi = LocationServices.FusedLocationApi;
private GoogleApiClient googleApiClient;
private LocationRequest locationRequest;
public final static int MILLISECONDS_PER_SECOND = 1000;
public final static int MINUTE = 60 * MILLISECONDS_PER_SECOND;
private static final int MY_PERMISSION_REQUEST_FINE_LOCATION = 101;
private static final int MY_PERMISSION_REQUEST_COARSE_LOCATION = 102;
private boolean permissionIsGranted = false;
private TextView tvLatValue;
private TextView tvLongValue;
private double longitude;
private double latitude;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_camera_pic);
ivPicSelected = (ImageView) findViewById(R.id.ivPicSelected);
tvLatValue = (TextView) findViewById(R.id.tvLatValue);
tvLongValue = (TextView) findViewById(R.id.tvLongValue);
googleApiClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
//initialise the location request with the accuracy and frequency with which we want location updates
locationRequest = new LocationRequest();
locationRequest.setInterval(MINUTE);
locationRequest.setFastestInterval(15 * MILLISECONDS_PER_SECOND);
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}
/**
* Method called when btnFromCamera is clicked.
* @param view
*/
public void btnFromCameraClicked(View view){
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File pictureDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);//
// String pictureName = getPictureName();//
// File imageFile = new File(pictureDirectory, pictureName);//
// Uri pictureUri = Uri.fromFile(imageFile);//
// cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT,pictureUri);//
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
/**
* This method is invoked when the user presses the From Gallery button.
* @param view
*/
public void onBtnGalleryClicked(View view){
//Invoke the image gallery with an implicit intent.
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
//Where to find the data.
File pictureDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
String pictureDirectoryPath = pictureDirectory.getPath();
//get a Uri representation.
Uri data = Uri.parse(pictureDirectoryPath);
//set the data and type/get all image types.
photoPickerIntent.setDataAndType(data, "image/*");
startActivityForResult(photoPickerIntent, IMAGE_GALLERY_REQUEST);
}
private String getPictureName() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
String timeStamp = sdf.format(new Date());
return "natureall" + timeStamp +".jpg";
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK){
if (requestCode == CAMERA_REQUEST){
Bitmap cameraImage = (Bitmap) data.getExtras().get("data");
ivPicSelected.setImageBitmap(cameraImage);
}
if (requestCode == IMAGE_GALLERY_REQUEST){
Uri imageUri = data.getData();
//declare a stream to read the image data.
InputStream inputStream;
try {
inputStream = getContentResolver().openInputStream(imageUri);
Bitmap image = BitmapFactory.decodeStream(inputStream);
ivPicSelected.setImageBitmap(image);
} catch (FileNotFoundException e) {
Toast.makeText(this, "Unable to open the image",Toast.LENGTH_LONG).show();
}
}
}
}
@Override
public void onConnected(Bundle bundle){requestLocationUpdates();}
private void requestLocationUpdates(){
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, MY_PERMISSION_REQUEST_FINE_LOCATION);
}
return;
}
LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient, locationRequest, this);
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
@Override
protected void onStart() {
super.onStart();
if (permissionIsGranted) {
googleApiClient.connect();
}
}
@Override
protected void onStop() {
super.onStop();
if (permissionIsGranted) {
googleApiClient.disconnect();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode){
case MY_PERMISSION_REQUEST_FINE_LOCATION:
if(grantResults[0] == PackageManager.PERMISSION_GRANTED){
permissionIsGranted = true;
Toast.makeText(this, "Permission Granted", Toast.LENGTH_LONG).show();
}
else{
permissionIsGranted = false;
Toast.makeText(getApplicationContext(), "This app requires location permissions to be granted", Toast.LENGTH_SHORT).show();
tvLatValue.setText("Lat permission denied");
tvLongValue.setText("Long permission denied");
}
break;
}
}
@Override
protected void onResume() {
super.onResume();
if (permissionIsGranted){
if (googleApiClient.isConnected())
requestLocationUpdates();
}}
@Override
protected void onPause() {
super.onPause();
if(permissionIsGranted) {
LocationServices.FusedLocationApi.removeLocationUpdates(googleApiClient, this);
}
}
@Override
public void onLocationChanged(Location location) {
if (permissionIsGranted){
//Toast.makeText(this, "Location Changed:" + location.getLatitude() + " " + location.getLongitude(), Toast.LENGTH_LONG).show();
longitude = location.getLongitude();
latitude = location.getLatitude();
tvLongValue.setText(Double.toString(longitude));
tvLatValue.setText(Double.toString(latitude));
}
}
}
`
是清单。什么人？ – Javaiskillingme