Jetpack Compose中Google Places Autocomplete崩溃：Intent缺少Place数据

我正在开发一款基于Jetpack Compose的应用，集成Google Places Autocomplete实现地点搜索功能。但启动Autocomplete Intent后，输入一个字符应用就崩溃了，报错信息为：java.lang.IllegalArgumentException: Intent expected to contain a Place, but doesn't.

ViewModel代码 #

init {
    if (!Places.isInitialized()) {
        Places.initialize(context, "$API_KEY", Locale.US);
    }
}
val field = listOf(Place.Field.NAME, Place.Field.LAT_LNG)

UI代码 #

val context = LocalContext.current
val intent = Autocomplete.IntentBuilder(AutocompleteActivityMode.OVERLAY, viewModel.field).build(context)

val launcher = rememberLauncherForActivityResult(ActivityResultContracts.StartActivityForResult()) {

    if(it.resultCode == 2){
        val place = Autocomplete.getPlaceFromIntent(it.data)
                val latLng = place.latLng
                Log.d("place LatLng: ", latLng.toString())

        // move the camera position of the map

        // cameraPositionState.move(CameraUpdateFactory.newLatLngZoom(lonLat, 15f))
    }

}

Logcat日志 #

FATAL EXCEPTION: main                                                                                Process: com.example.trip, PID: 19245
                                                                                                java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=988884199, result=2, data=Intent { (has extras) }} to activity {com.example.trip/com.example.trip.MainActivity}: java.lang.IllegalArgumentException: Intent expected to contain a Place, but doesn't.
                                                                                                    at android.app.ActivityThread.deliverResults(ActivityThread.java:5015)
                                                                                                    at android.app.ActivityThread.handleSendResult(ActivityThread.java:5056)
                                                                                                    at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:51)
                                                                                                    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
                                                                                                    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
                                                                                                    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
                                                                                                    at android.os.Handler.dispatchMessage(Handler.java:106)
                                                                                                    at android.os.Looper.loop(Looper.java:223)
                                                                                                    at android.app.ActivityThread.main(ActivityThread.java:7656)
                                                                                                    at java.lang.reflect.Method.invoke(Native Method)
                                                                                                    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
                                                                                                    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
                                                                                                Caused by: java.lang.IllegalArgumentException: Intent expected to contain a Place, but doesn't.
                                                                                                    at com.google.android.libraries.places.internal.zzha.zze(com.google.android.libraries.places:places@@2.6.0:1)
                                                                                                    at com.google.android.libraries.places.internal.zzfo.zzb(com.google.android.libraries.places:places@@2.6.0:3)
                                                                                                    at com.google.android.libraries.places.widget.Autocomplete.getPlaceFromIntent(com.google.android.libraries.places:places@@2.6.0:1)
                                                                                                    at com.example.trip.ui.theme.tripSection.createTrip.CreateTripScreenKt$CreateTripScreen$2$1$launcher$1.invoke(CreateTripScreen.kt:116)
                                                                                                    at com.example.trip.ui.theme.tripSection.createTrip.CreateTripScreenKt$CreateTripScreen$2$1$launcher$1.invoke(CreateTripScreen.kt:113)
                                                                                                    at androidx.activity.compose.ActivityResultRegistryKt$rememberLauncherForActivityResult$1$1.onActivityResult(ActivityResultRegistry.kt:105)
                                                                                                    at androidx.activity.result.ActivityResultRegistry.doDispatch(ActivityResultRegistry.java:392)
                                                                                                    at androidx.activity.result.ActivityResultRegistry.dispatchResult(ActivityResultRegistry.java:351)
                                                                                                    at androidx.activity.ComponentActivity.onActivityResult(ComponentActivity.java:638)
                                                                                                    at android.app.Activity.dispatchActivityResult(Activity.java:8310)
                                                                                                    at android.app.ActivityThread.deliverResults(ActivityThread.java:5008)
                                                                                                    at android.app.ActivityThread.handleSendResult(ActivityThread.java:5056) 
                                                                                                    at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:51) 
                                                                                                    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
                                                                                                    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
                                                                                                    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) 
                                                                                                    at android.os.Handler.dispatchMessage(Handler.java:106) 
                                                                                                    at android.os.Looper.loop(Looper.java:223) 
                                                                                                    at android.app.ActivityThread.main(ActivityThread.java:7656) 
                                                                                                    at java.lang.reflect.Method.invoke(Native Method) 
                                                                                                    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
                                                                                                    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 

Gradle依赖 #

//Google places api
implementation 'com.google.android.libraries.places:places:2.6.0'

解决方案 #

1. 修正结果码判断逻辑 #

不要用硬编码的2作为成功结果码，Google Places Autocomplete的成功返回码是Activity.RESULT_OK（对应值-1）。你当前的判断会错误捕获输入字符时的中间状态，此时Intent内并没有Place数据，调用Autocomplete.getPlaceFromIntent必然崩溃。

修改后的回调代码：

val launcher = rememberLauncherForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
    if (result.resultCode == Activity.RESULT_OK) {
        val data = result.data ?: return@rememberLauncherForActivityResult
        val place = Autocomplete.getPlaceFromIntent(data)
        val latLng = place.latLng
        Log.d("place LatLng: ", latLng.toString())
        // 后续地图操作
    }
}

2. 增加空值防护 #

即使结果码正确，也要先判断result.data是否为空，避免空指针异常。

3. 验证API密钥有效性 #

确保$API_KEY替换为有效的Google Places API密钥，且该密钥已启用Places API服务，同时配置了正确的应用签名和包名限制。

4. 确认初始化时机 #

确保Places初始化在主线程执行，且仅初始化一次。ViewModel的init块是合适的位置，但要保证传入的context是Application Context，避免内存泄漏。

内容的提问来源于stack exchange，提问作者heet kanabar