java.lang.RuntimeException: 无法启动 activity ComponentInfo(android.view.InflateException:)

Question

我想在我的项目中导入 Google Api 以查看 google 地图，但它显示错误 ( java.lang.RuntimeException: 无法启动 activity ComponentInfo )

我搜索了很多与这个问题相关的内容，但根据我的代码结构，没有找到与我的问题足够相关的内容

这是我的 Main Activity 命名为 (GoogleMapLocat)

public class GoogleMapLocat extends AppCompatActivity {
//map data
private static final String TAG = "HomeActivity";
private static final int ERROR_DIALOG_REQUEST = 9001;


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

    //map data
    if (isServicesOK()) {
        init();
    }
}
//MAP DATA
public void init() {
    Button btnMap = (Button) findViewById(R.id.btnMap);
    btnMap.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(GoogleMapLocat.this, MapActivity.class);
            startActivity(intent);
        }
    });

}

public boolean isServicesOK() {
    Log.d(TAG, "isServicesOK: checking google services version");
    int available = GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(GoogleMapLocat.this);
    if (available == ConnectionResult.SUCCESS) {
        Log.d(TAG, "Google Play Services is Working");
        return true;
    } else if (GoogleApiAvailability.getInstance().isUserResolvableError(available)) {
        //an error occured but we can resolve it
        Log.d(TAG, "isServicesOK: an error occured but we can fix it");
        Dialog dialog = GoogleApiAvailability.getInstance().getErrorDialog(GoogleMapLocat.this, available, ERROR_DIALOG_REQUEST);
        dialog.show();
    } else {
        Toast.makeText(this, "you can,t make map request", Toast.LENGTH_LONG).show();

    }
    return false;
}
}

这是我的第二个 Activity 命名为 (MapActivity)

 public class MapActivity extends AppCompatActivity implements OnMapReadyCallback{
private static final String TAG = "MapActivity";

private static final String FINE_LOCATION = Manifest.permission.ACCESS_FINE_LOCATION;
private static final String COURSE_LOCATION = Manifest.permission.ACCESS_COARSE_LOCATION;
private static final int LOCATION_PERMISSION_REQUEST_CODE = 1234;

//vars
private Boolean mLocationPermissionsGranted = false;
private GoogleMap mMap;




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

    getLocationPermission();
}
@Override
public void onMapReady(GoogleMap googleMap) {
    Toast.makeText(this, "Map is Ready", Toast.LENGTH_SHORT).show();
    Log.d(TAG, "onMapReady: map is ready");
    mMap = googleMap;
}

private void initMap(){
    Log.d(TAG, "initMap: initializing map");
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);

    mapFragment.getMapAsync(MapActivity.this);
}

private void getLocationPermission(){
    Log.d(TAG, "getLocationPermission: getting location permissions");
    String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION,
            Manifest.permission.ACCESS_COARSE_LOCATION};

    if(ContextCompat.checkSelfPermission(this.getApplicationContext(),
            FINE_LOCATION) == PackageManager.PERMISSION_GRANTED){
        if(ContextCompat.checkSelfPermission(this.getApplicationContext(),
                COURSE_LOCATION) == PackageManager.PERMISSION_GRANTED){
            mLocationPermissionsGranted = true;
        }else{
            ActivityCompat.requestPermissions(this,
                    permissions,
                    LOCATION_PERMISSION_REQUEST_CODE);
        }
    }else{
        ActivityCompat.requestPermissions(this,
                permissions,
                LOCATION_PERMISSION_REQUEST_CODE);
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    Log.d(TAG, "onRequestPermissionsResult: called.");
    mLocationPermissionsGranted = false;

    switch(requestCode){
        case LOCATION_PERMISSION_REQUEST_CODE:{
            if(grantResults.length > 0){
                for(int i = 0; i < grantResults.length; i++){
                    if(grantResults[i] != PackageManager.PERMISSION_GRANTED){
                        mLocationPermissionsGranted = false;
                        Log.d(TAG, "onRequestPermissionsResult: permission failed");
                        return;
                    }
                }
                Log.d(TAG, "onRequestPermissionsResult: permission granted");
                mLocationPermissionsGranted = true;
                //initialize our map
                initMap();
            }
        }
    }
}
}

这里是mapactivity.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

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

</RelativeLayout>

这是 GoogleMapLocat.xml 文件：

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".GoogleMapLocat">
<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Map"
    android:id="@+id/btnMap"
    tools:ignore="MissingConstraints" />

</androidx.constraintlayout.widget.ConstraintLayout>

这是我的堆栈跟踪：

E/UncaughtException: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.e_agriculture10/com.example.e_agriculture10.MapActivity}: android.view.InflateException: Binary XML file line #6: Error inflating class fragment
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2193)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2243)
  Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class fragment
  at com.example.e_agriculture10.MapActivity.onCreate(MapActivity.java:37)
   java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.e_agriculture10/com.example.e_agriculture10.MapActivity}: android.view.InflateException: Binary XML file line #6: Error inflating class fragment 
 Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class fragment

根据这行报错

   at com.example.e_agriculture10.MapActivity.onCreate(MapActivity.java:37)

这里是受影响的区域

 setContentView(R.layout.activity_map);

因为当我点击 (MapActivity.java:37) 时，光标会在此行的开头闪烁 (setContentView(R.layout.activity_map);)

根据这行报错

 Binary XML file line #6: Error inflating class fragment

这是受影响的代码块（因为我认为这是与我的错误相关的关键区域）

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

这个片段有什么问题导致膨胀异常？

Answer 1

由于您使用的是 androidx 库，因此您必须使用 SupportMapFragment migrated 从 Android 支持库到 AndroidX 库。

如果您使用此版本或更高版本。

com.google.android.gms:play-services-maps:17.0.0

如果您查看文档，它会扩展 androidx.fragment.app.Fragment。

java.lang.RuntimeException: 无法启动 activity ComponentInfo(android.view.InflateException:)

java.lang.RuntimeException: Unable to start activity ComponentInfo(android.view.InflateException:)

java

xml

android

google-maps-android-api-2