KotlinAndroid地点API自动完成

tzxcd3kk  于 2023-02-16  发布在  Kotlin
关注(0)|答案(1)|浏览(124)

谢谢你的关注。正如标题所示，我在当前的Kotlin项目中遇到了一个相当"奇怪"的问题。在我的应用程序中，用户可以点击一个按钮（或文本输入作为按钮工作），然后一个新的Intent弹出，用户可以在那里输入一个位置。
这里有一个小片段：

R.id.et_location -> {
            try{
                // This is the list of fields that need to be passed
                val fields = listOf(Place.Field.ID, Place.Field.NAME, Place.Field.LAT_LNG, Place.Field.ADDRESS)
                // Start the autocomplete intent with a unique request code.
                val intent = Autocomplete.IntentBuilder(AutocompleteActivityMode.FULLSCREEN, fields).build(this@AddHappyPlaceActivity)
                startActivityForResult(intent, PLACE_AUTOCOMPLETE_REQUEST_CODE)
        }catch (e: Exception) {
            e.printStackTrace()
            Toast.makeText(this, "Couldnt load it", Toast.LENGTH_SHORT).show()}

所有这些都运行得很好，所以窗口弹出，但当我开始输入像"配音"这样的东西时（以迪拜为例）它显示了一些条目，但如果我再输入1 - 2个字符，它会突然说"无法加载搜索结果"。有时搜索根本不起作用。我在谷歌上搜索过这个问题，人们建议API密钥可能有问题，但如果钥匙出了问题，它一开始就不起作用，只能关闭Intent（我试过了）。
我已经尝试了一些API密钥。首先，我创建的第一个密钥根本不起作用。我生成的第二个密钥部分起作用（我目前的情况）。第一个密钥仅限于我的包/sha1.

第二个密钥，如你所见，没有任何限制，但它比第一个工作得更好。我现在不知道是我的API密钥导致的问题或我的代码。下面我将分享相关的代码。

    • 安卓清单. xml**
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="eu.sampa.happyPlaces">
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <!-- Several permissions -->
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <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">

        <meta-data
            android:name="com.google.android.geo.API_KEY"
            android:value="@string/google_maps_key" />

        <activity
            android:name=".activities.HappyPlaceDetailActivity"
            android:label="HAPPY PLACE DETAILS"
            android:screenOrientation="portrait"
            android:theme="@style/CustomNoActionBarTheme" />
        <activity
            android:name=".activities.AddHappyPlaceActivity"
            android:label="ADD HAPPY PLACE"
            android:screenOrientation="portrait"
            android:theme="@style/CustomNoActionBarTheme" />
        <activity android:name=".activities.MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>
    • google_maps_api. xml（我在这里发布之前删除了我的SHA1key和API Key）**
<resources>
    <!--
    TODO: Before you run your application, you need a Google Maps API key.

    To get one, follow this link, follow the directions and press "Create" at the end:

    https://console.developers.google.com/flows/enableapi?apiid=maps_android_backend&keyType=CLIENT_SIDE_ANDROID&r=60:BF:DE:FE:3C:6F:DA:3B:56:09:E7:B7:BB:5F:FC:F8:AE:00:DC:0D%3Beu.sampa.happyPlaces.activities

    You can also add your credentials to an existing key, using these values:

    Package name:
    eu.sampa.happyPlaces.activities

    SHA-1 certificate fingerprint:
    MY SHA1 KEY

    Alternatively, follow the directions here:
    https://developers.google.com/maps/documentation/android/start#get-key

    Once you have your key (it starts with "AIza"), replace the "google_maps_key"
    string in this file.
    -->
    <string name="google_maps_key" templateMergeStrategy="preserve" translatable="false">MY API KEY</string>
</resources>

最后是我的活动，所有必要的东西都得到了处理（抱歉这么长...但是我已经用注解"//对于Places API "，如果需要的话，请使用搜索功能）

    • 添加快乐场所活动. kt**
package eu.sampa.happyPlaces.activities

import android.Manifest
import android.app.Activity
import android.app.DatePickerDialog
import android.content.ActivityNotFoundException
import android.content.Context
import android.content.ContextWrapper
import android.content.Intent
import android.content.pm.PackageManager
import android.graphics.Bitmap
import android.graphics.ImageDecoder
import android.net.Uri
import android.os.Build
import android.os.Bundle
import android.provider.MediaStore
import android.provider.Settings
import android.util.Log
import android.view.View
import android.widget.Toast
import androidx.annotation.RequiresApi
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.app.AppCompatActivity
import androidx.core.content.ContextCompat
import com.google.android.libraries.places.api.Places
import com.google.android.libraries.places.api.model.Place
import com.google.android.libraries.places.widget.Autocomplete
import com.google.android.libraries.places.widget.model.AutocompleteActivityMode
import com.karumi.dexter.Dexter
import com.karumi.dexter.MultiplePermissionsReport
import com.karumi.dexter.PermissionToken
import com.karumi.dexter.listener.PermissionRequest
import com.karumi.dexter.listener.multi.MultiplePermissionsListener
import eu.sampa.happyPlaces.R
import eu.sampa.happyPlaces.database.DatabaseHandler
import eu.sampa.happyPlaces.models.HappyPlaceModel
import kotlinx.android.synthetic.main.activity_add_happy_place.*
import java.io.File
import java.io.FileOutputStream
import java.io.IOException
import java.io.OutputStream
import java.lang.Exception
import java.text.SimpleDateFormat
import java.util.*

class AddHappyPlaceActivity : AppCompatActivity(), View.OnClickListener {

    // Creates a variable for GALLERY Selection which will be later used in the onActivityResult method.
    companion object {
        private const val GALLERY = 1
        private const val CAMERA = 2
        private const val IMAGE_DIRECTORY = "HappyPlacesImages"
        private const val PLACE_AUTOCOMPLETE_REQUEST_CODE = 3
    }

    private var saveImageToInternalStorage : Uri? = null
    private var mLatitude : Double = 0.0
    private var mLongitude : Double = 0.0
    // For the swipe feature
    private var mHappyPlaceDetails : HappyPlaceModel? = null

    // Creating the variables of Calender Instance and DatePickerDialog listener to use it for date selection
    // A variable to get an instance calendar using the default time zone and locale.
    private var cal = Calendar.getInstance()

    /* A variable for DatePickerDialog OnDateSetListener.
    * The listener used to indicate the user has finished selecting a date. It will be initialized later. */
    private lateinit var dateSetListener : DatePickerDialog.OnDateSetListener

    // Used to increment when someone clicks on the Add Photo button see below in onClick function
    private var addButtonClicked = 0

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_add_happy_place)

        // Adds the back button on the ActionBar
        setSupportActionBar(toolbar_add_place)
        supportActionBar?.setDisplayHomeAsUpEnabled(true)
        toolbar_add_place.setNavigationOnClickListener {
            onBackPressed()
        }
        // For the Places API
        if(!Places.isInitialized()) {
            Places.initialize(this@AddHappyPlaceActivity, resources.getString(R.string.google_maps_key))
        }

        if(intent.hasExtra(MainActivity.EXTRA_PLACE_DETAILS)) {
            mHappyPlaceDetails = intent.getParcelableExtra(MainActivity.EXTRA_PLACE_DETAILS) as HappyPlaceModel
        }

        // Initialize the DatePicker and sets the selected date
        // https://www.tutorialkart.com/kotlin-android/android-datepicker-kotlin-example/
        dateSetListener = DatePickerDialog.OnDateSetListener{
                _, year, month, dayOfMonth ->
            cal.set(Calendar.YEAR, year)
            cal.set(Calendar.MONTH, month)
            cal.set(Calendar.DAY_OF_MONTH, dayOfMonth)
            updateDateInView()
        }
        // Automatically sets the current date
        updateDateInView()
        // Uses functionality in the onClick function below
        et_date.setOnClickListener(this)
        tv_add_image.setOnClickListener(this)
        btn_save.setOnClickListener(this)
        et_location.setOnClickListener(this)

        if(mHappyPlaceDetails != null) {
            supportActionBar?.title = "Edit Happy PLace"
            et_title.setText(mHappyPlaceDetails!!.title)
            et_description.setText(mHappyPlaceDetails!!.description)
            et_date.setText(mHappyPlaceDetails!!.date)
            et_location.setText(mHappyPlaceDetails!!.location)
            mLatitude = mHappyPlaceDetails!!.latitude
            mLongitude = mHappyPlaceDetails!!.longitude
            saveImageToInternalStorage = Uri.parse(mHappyPlaceDetails!!.image)
            iv_place_image.setImageURI(saveImageToInternalStorage)
            btn_save.text = "UPDATE"
        }

    }

    // This is a override method after extending the onclick listener interface (gets created automatically)
    override fun onClick(v: View?) {
        when (v!!.id) {
            R.id.et_date -> {
                DatePickerDialog(this@AddHappyPlaceActivity, dateSetListener,
                    cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH)).show()
            }
            R.id.tv_add_image -> {
                val pictureDialog = AlertDialog.Builder(this)
                pictureDialog.setTitle("Select Action")
                val pictureDialogItems = arrayOf("Select photo from gallery", "Capture photo from camera")
                pictureDialog.setItems(pictureDialogItems) {
                        _, which ->
                    when(which) {
                        0 -> choosePhotoFromGallery()
                        1 -> takePhotoFromCamera()
                    }
                }
                pictureDialog.show()
                /* Used to display the Dialog to get to the menu after the user
                *  denied access 2 or more times */
                addButtonClicked += 1
                if (addButtonClicked > 2) {
                    if (ContextCompat.checkSelfPermission(this@AddHappyPlaceActivity,
                            Manifest.permission.CAMERA)
                            != PackageManager.PERMISSION_GRANTED) {
                            showRationalDialogForPermissions()
                        }
                    if (ContextCompat.checkSelfPermission(this@AddHappyPlaceActivity,
                            Manifest.permission.READ_EXTERNAL_STORAGE)
                            != PackageManager.PERMISSION_GRANTED) {
                            showRationalDialogForPermissions()
                        }
                    if (ContextCompat.checkSelfPermission(this@AddHappyPlaceActivity,
                            Manifest.permission.WRITE_EXTERNAL_STORAGE)
                            != PackageManager.PERMISSION_GRANTED) {
                            showRationalDialogForPermissions()
                        }
                }
            }
            R.id.btn_save -> {
                when {
                    et_title.text.isNullOrEmpty() -> {
                        Toast.makeText(this, "Please enter title", Toast.LENGTH_SHORT).show()
                    }
                    et_description.text.isNullOrEmpty() -> {
                        Toast.makeText(this, "Please enter description", Toast.LENGTH_SHORT)
                            .show()
                    }
                    et_location.text.isNullOrEmpty() -> {
                        Toast.makeText(this, "Please select location", Toast.LENGTH_SHORT)
                            .show()
                    }
                    saveImageToInternalStorage == null -> {
                        Toast.makeText(this, "Please add image", Toast.LENGTH_SHORT).show()
                    }
                    else -> {
                        // Assigning all the values to data model class.
                        val happyPlaceModel = HappyPlaceModel(
                            if(mHappyPlaceDetails == null) 0 else mHappyPlaceDetails!!.id,
                            et_title.text.toString(),
                            saveImageToInternalStorage.toString(),
                            et_description.text.toString(),
                            et_date.text.toString(),
                            et_location.text.toString(),
                            mLatitude,
                            mLongitude
                        )
                        // Here we initialize the database handler class.
                        val dbHandler = DatabaseHandler(this)
                        if (mHappyPlaceDetails == null) {
                            val addHappyPlace = dbHandler.addHappyPlace(happyPlaceModel)
                            if (addHappyPlace > 0) {
                                setResult(Activity.RESULT_OK)
                                finish() // Gets us back to MainActivity
                            }
                        } else{
                            val updateHappyPlace = dbHandler.updateHappyPlace(happyPlaceModel)
                            // greater than zero indicates that everything worked out
                            if (updateHappyPlace > 0) {
                                setResult(Activity.RESULT_OK)
                                finish() // Gets us back to MainActivity
                            }
                        }

                    }
                }
            }
            // For the Places API
            R.id.et_location -> {
                try{
                    // This is the list of fields that need to be passed
                    val fields = listOf(Place.Field.ID, Place.Field.NAME, Place.Field.LAT_LNG, Place.Field.ADDRESS)
                    // Start the autocomplete intent with a unique request code.
                    val intent = Autocomplete.IntentBuilder(AutocompleteActivityMode.FULLSCREEN, fields).build(this@AddHappyPlaceActivity)
                    startActivityForResult(intent, PLACE_AUTOCOMPLETE_REQUEST_CODE)
            }catch (e: Exception) {
                e.printStackTrace()
                Toast.makeText(this, "Couldnt load it", Toast.LENGTH_SHORT).show()}
            }
        }
    }

    // Method used for taking pictures with the Camera
    private fun takePhotoFromCamera() {
        // Asking for permissions using DEXTER Library
        Dexter.withContext(this).withPermissions(
            Manifest.permission.READ_EXTERNAL_STORAGE,
            Manifest.permission.WRITE_EXTERNAL_STORAGE,
            Manifest.permission.CAMERA
        ).withListener(object : MultiplePermissionsListener {
            override fun onPermissionsChecked(report: MultiplePermissionsReport?) {
                // Here after all the permission are granted launch the Camera to capture an image
                val galleryIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
                startActivityForResult(galleryIntent, CAMERA    )
            }
            override fun onPermissionRationaleShouldBeShown(permissions: MutableList<PermissionRequest>?, token: PermissionToken?) {
                token?.continuePermissionRequest()
            }
        }).onSameThread().check()
    }

    // Method used for image selection from GALLERY/PHOTOS
    private fun choosePhotoFromGallery() {
        // Asking for permissions using DEXTER Library
        Dexter.withContext(this).withPermissions(
            Manifest.permission.READ_EXTERNAL_STORAGE,
            Manifest.permission.WRITE_EXTERNAL_STORAGE,
            Manifest.permission.CAMERA
        ).withListener(object : MultiplePermissionsListener {
            override fun onPermissionsChecked(report: MultiplePermissionsReport?) {
                // Here after all the permission are granted, launch the gallery to select and image.
                val galleryIntent = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
                startActivityForResult(galleryIntent,
                    GALLERY
                )
            }
            override fun onPermissionRationaleShouldBeShown(permissions: MutableList<PermissionRequest>?, token: PermissionToken?) {
                token?.continuePermissionRequest()
            }
        }).onSameThread().check()
    }

    // Message to be shown if user denies access and possibly send him to the settings
    private fun showRationalDialogForPermissions() {
        AlertDialog.Builder(this).setMessage("It looks like you have turned off " +
                "permissions required for this feature").setPositiveButton("GO TO SETTINGS")
        { _, _ ->
            try{
                val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
                val uri = Uri.fromParts("package", packageName, null)
                intent.data = uri
                startActivity(intent)
            } catch (e: ActivityNotFoundException) {
                e.printStackTrace()
            }
        }.setNegativeButton("Cancel") { dialog, _ ->
            dialog.dismiss()
        }.show()
    }

    // Handles the chosen Image from the startActivityResult from choosePhotoFromGallery and takePhotoFromCamera
    @RequiresApi(Build.VERSION_CODES.P)
    public override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if(resultCode == Activity.RESULT_OK) {
            if(requestCode == GALLERY) {
                if(data != null) {
                    val contentURI = data.data
                    // For more info go to https://stackoverflow.com/questions/56651444/deprecated-getbitmap-with-api-29-any-alternative-codes
                    try {
                        if(Build.VERSION.SDK_INT < 28) {
                            // Here this is used to get an bitmap from URI
                            val selectedImageBitmap = MediaStore.Images.Media.getBitmap(this.contentResolver, contentURI)
                            // Saving an image which is selected from GALLERY. And printed the path in logcat
                            saveImageToInternalStorage = saveImageToInternalStorage(selectedImageBitmap)
                            Log.e("Saved image: ", "Path :: $saveImageToInternalStorage")
                            iv_place_image!!.setImageBitmap(selectedImageBitmap) // Set the selected image from GALLERY to imageView
                        } else {
                            val selectedImageBitmapSource = contentURI?.let { ImageDecoder.createSource(this.contentResolver, it) }
                            val selectedImageBitmap = selectedImageBitmapSource?.let { ImageDecoder.decodeBitmap(it) }
                            // Saving an image which is selected from GALLERY. And printed the path in logcat
                            saveImageToInternalStorage = selectedImageBitmap?.let { saveImageToInternalStorage(it) }
                            Log.e("Saved image: ", "Path :: $saveImageToInternalStorage")
                            iv_place_image.setImageBitmap(selectedImageBitmap)
                        }
                    } catch (e: IOException) {
                        e.printStackTrace()
                        Toast.makeText(this@AddHappyPlaceActivity, "Failed to load the Image!", Toast.LENGTH_SHORT).show()
                    }
                }
                // Camera result will be received here
            } else if(requestCode == CAMERA){
                val thumbNail : Bitmap = data!!.extras!!.get("data") as Bitmap // Bitmap from camera
                // Saving an image which is selected from CAMERA. And printed the path in logcat
                saveImageToInternalStorage = saveImageToInternalStorage(thumbNail)
                Log.e("Saved image: ", "Path :: $saveImageToInternalStorage")
                iv_place_image.setImageBitmap(thumbNail) // Set to the imageView
                // For the Places API
            } else if(requestCode == PLACE_AUTOCOMPLETE_REQUEST_CODE) {
                val place : Place = Autocomplete.getPlaceFromIntent(data!!)
                et_location.setText(place.address)
                mLatitude = place.latLng!!.latitude
                mLongitude = place.latLng!!.longitude
            }
        }
    }

    // A function to update the selected date in the UI with selected format.
    private fun updateDateInView() {
        val myFormat = "dd.MM.yyyy"
        val sdf = SimpleDateFormat(myFormat, Locale.getDefault())
        et_date.setText(sdf.format(cal.time).toString())
    }

    /* https://android--code.blogspot.com/2018/04/android-kotlin-save-image-to-internal.html
    Uri gives us the location back */
    private fun saveImageToInternalStorage(bitmap: Bitmap):Uri {
        // Get the context wrapper instance
        val wrapper = ContextWrapper(applicationContext)
        // This line returns a directory in the internal storage
        var file = wrapper.getDir(IMAGE_DIRECTORY, Context.MODE_PRIVATE)
        // First we give the location and then we generate a random Name for the Image
        file = File(file, "${UUID.randomUUID()}.jpg")
        //
        try {
            val stream : OutputStream = FileOutputStream(file)
            bitmap.compress(Bitmap.CompressFormat.JPEG,100, stream)
            stream.flush()
            stream.close()
        }catch (e: IOException) {
            e.printStackTrace()
        }
        // Return the saved image uri
        return Uri.parse(file.absolutePath)
    }
}
kotlin

1条答案

按热度按时间
sr4lhrrt

sr4lhrrt1#

Google Places AutoComplete的不一致结果背后的行为是您缺少计费帐户。
1.登录谷歌云平台
1.转到计费菜单
1.如果您以前有付费帐户，您可以将其分配给Google Cloud项目。如果没有，请使用借记卡创建一个新的付费帐户。
4)尝试计费帐户API KEY，它会工作正常
检查这个解决方案，我认为它会完美地工作，你的结果会一致。
快乐编码🤓

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