Намеренная проблема с активностью Map - как это исправить? - PullRequest
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Намеренная проблема с активностью Map - как это исправить?

0 голосов
/ 03 февраля 2019

Мне нужно создать мероприятие, которое должно пройти на следующей неделе.Действие состоит в том, чтобы сделать домашнюю страницу с 2 кнопками (Камера и Карта), что означает, что я должен использовать функцию намерения для работы этого приложения.Но у меня есть проблема, кнопка камеры работает нормально, но мои карты не работают, поэтому я здесь, чтобы попросить о помощи.

Я попытался map = 

(Button) findViewById(R.id.map);
        map.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            { openMapsActivity();
            }
        });

затем

p 

ublic void openMapsActivity() {

        Intent intent = new Intent(this, MapsActivity.class);

        startActivity(intent);

    }

Но, похоже, не работает

Вот код моей основной деятельности: пакет com.example.midexam; 

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Camera;
import android.net.Uri;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Map;

public class MainActivity extends AppCompatActivity {


    private static final int CAMERA_PICUTRE = 1;
    private static final String IMAGE_RESOURCE = "strKeyimage";


    ImageView imgPic;
    Button btnCamera, map;
    Bitmap photo;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btnCamera = (Button) findViewById(R.id.btnCamera);
        btnCamera.setOnClickListener(new View.OnClickListener() {


            @Override
            public void onClick(View v) {
                Intent cameraIntent = new Intent (MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(cameraIntent, CAMERA_PICUTRE);

            }

        });
        map = (Button) findViewById(R.id.map);
        map.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            { openMapsActivity();
            }
        });


    }



    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == CAMERA_PICUTRE && resultCode == RESULT_OK){
            Uri selectedUriImage = data.getData();
            try {
                photo = MediaStore.Images.Media.getBitmap(this.getContentResolver(),
                        selectedUriImage);
            }
            catch (FileNotFoundException e) {
                e.printStackTrace();

            } catch (IOException e ) {
                e.printStackTrace();

            }
            imgPic.setImageBitmap(photo);
        }
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putParcelable(IMAGE_RESOURCE, photo);
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        photo = savedInstanceState.getParcelable(IMAGE_RESOURCE);
        imgPic.setImageBitmap(photo);


    }



    public void openMapsActivity() {

        Intent intent = new Intent(this, MapsActivity.class);

        startActivity(intent);

    }


}




Code for my MapActivity:

package com.example.midexam;


import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.support.v4.app.ActivityCompat;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.maps.model.PolylineOptions;


public class MapsActivity extends AppCompatActivity implements OnMapReadyCallback, LocationListener {


    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_maps);

        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        LatLng central = new LatLng(8.404278, 124.290969);
        mMap.addMarker(new MarkerOptions()
                .position(central)
                .title("Your Here")
                .icon(BitmapDescriptorFactory.fromResource(R.drawable.rsz_black)
                )
        );
        LatLng anthony = new LatLng(8.404407, 124.286771);
        mMap.addMarker(new MarkerOptions()
                .position(anthony)
                .title("You arrive")
                .icon(BitmapDescriptorFactory.fromResource(R.drawable.rsz_black)
                )
        );
        mMap.addPolyline(new PolylineOptions() .add(
                central,
                new LatLng(8.404448, 124.290791),
                new LatLng(8.404575, 124.290651),
                new LatLng(8.404873, 124.287250),
                new LatLng(8.404358, 124.287154),
                anthony


                )
                        .width(10)
                        .color(Color.GREEN)
        );



        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED  && ActivityCompat.checkSelfPermission(this,
                Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
            //TODO: Consider calling
            return;
        ;
        //add permission check
        mMap.setMyLocationEnabled(true);

        LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        Location myLocation = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);

        if (myLocation != null) {
            Criteria criteria = new Criteria();
            criteria.setAccuracy(Criteria.ACCURACY_COARSE);
            String provider = lm.getBestProvider(criteria, true);
            myLocation = lm.getLastKnownLocation(provider);

            CameraPosition cameraPosition2 = new CameraPosition.Builder()
                    .target(new LatLng(myLocation.getLatitude(), myLocation.getLongitude()))
                    .zoom(17)
                    .bearing(90)
                    .tilt(40)
                    .build();
            mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition2));

        }

    }

    @Override
    public  void onLocationChanged(Location location) {
        double latitude = location.getLatitude();

        double longitude = location.getLongitude();

        LatLng latLng = new LatLng(latitude, longitude);

        mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));

        mMap.animateCamera(CameraUpdateFactory.zoomTo(15));


    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {

    }
    @Override
    public void onProviderEnabled(String provider) {

    }
    @Override
    public void onProviderDisabled(String provider){

    }
}


my manifest: 

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.midexam">

    <!--
         The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
         Google Maps Android API v2, but you must specify either coarse or fine
         location permissions for the 'MyLocation' functionality.
    -->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.CAMERA" />



    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <!--
             The API key for Google Maps-based APIs is defined as a string resource.
             (See the file "res/values/google_maps_api.xml").
             Note that the API key is linked to the encryption key used to sign the APK.
             You need a different API key for each encryption key, including the release key that is used to
             sign the APK for publishing.
             You can define the keys for the debug and release targets in src/debug/ and src/release/.
        -->
        <meta-data
            android:name="com.google.android.geo.API_KEY"
            android:value="@string/google_maps_key" />

        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_maps">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

then my activity_map XML File;

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MapsActivity"

    />

and the Last activity_main.xml file:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.midexam.MainActivity"
    >


    <ImageView
        android:id="@+id/imgPic"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="78dp"
        android:scaleType="centerCrop"
        android:src="@mipmap/ic_launcher"/>


    <Button
        android:id="@+id/btnCamera"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/imgPic"
        android:layout_below="@+id/imgPic"
        android:layout_marginTop="22dp"
        android:text="Camera"/>


    <Button
        android:id="@+id/map"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/btnCamera"
        android:layout_alignBottom="@+id/btnCamera"
        android:layout_alignRight="@+id/imgPic"
        android:text="map"/>


</RelativeLayout>








I expected the Intent function I tried for the map activity will work out but I was wrong.

1 Ответ

0 голосов
/ 06 февраля 2019

обновите ваше приложение манифеста следующим образом: 

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">

    <!--
         The API key for Google Maps-based APIs is defined as a string resource.
         (See the file "res/values/google_maps_api.xml").
         Note that the API key is linked to the encryption key used to sign the APK.
         You need a different API key for each encryption key, including the release key that is used to
         sign the APK for publishing.
         You can define the keys for the debug and release targets in src/debug/ and src/release/.
    -->
    <meta-data
        android:name="com.google.android.geo.API_KEY"
        android:value="@string/google_maps_key" />

    <activity
        android:name=".MainActivity"
        android:label="@string/title_activity_maps">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
   <activity
        android:name=".MapsActivity"
        android:screenOrientation="portrait" />
</application>
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