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android - 谷歌地图意图返回错误：没有找到处理意图的活动

问题描述

我有一个navigate方法：

    public void navigate(String coordinates){

        Uri intentUri = Uri.parse("geo"+coordinates);
        Intent mapIntent = new Intent(Intent.ACTION_VIEW);
        mapIntent.setData(intentUri);
        mapIntent.setPackage("com.google.android.apps.maps");
        getContext().startActivity(mapIntent);
    }

当我点击 a 时调用它TextView：

        TextView location = (TextView) listItemView.findViewById(R.id.location);
        location.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                navigate(currentAttraction.getLocation());
            }
        });

但是，当应用程序运行时，我点击TextView，应用程序crashes and I get this error：

2020-01-15 21:29:20.164 17438-17438/com.example.android.explorecapetown E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.android.explorecapetown, PID: 17438
    android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=geo-33.920864,18.418210 pkg=com.google.android.apps.maps }
        at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:2051)
        at android.app.Instrumentation.execStartActivity(Instrumentation.java:1709)
        at android.app.Activity.startActivityForResult(Activity.java:5192)
        at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:676)
        at android.app.Activity.startActivityForResult(Activity.java:5150)
        at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:663)
        at android.app.Activity.startActivity(Activity.java:5521)
        at android.app.Activity.startActivity(Activity.java:5489)
        at com.example.android.explorecapetown.AttractionAdapter.navigate(AttractionAdapter.java:72)
        at com.example.android.explorecapetown.AttractionAdapter$1.onClick(AttractionAdapter.java:46)
        at android.view.View.performClick(View.java:7125)
        at android.view.View.performClickInternal(View.java:7102)
        at android.view.View.access$3500(View.java:801)
        at android.view.View$PerformClick.run(View.java:27336)
        at android.os.Handler.handleCallback(Handler.java:883)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

该设备确实有谷歌地图。

我对使用地图意图非常陌生，所以我希望有人可以让我知道我做错了什么。

附言

请注意，这发生在 Adapter 类中：

public class AttractionAdapter extends ArrayAdapter<Attraction> {


    public AttractionAdapter(Context context, ArrayList<Attraction> attractions) {
        super(context, 0, attractions);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View listItemView = convertView;
        if (listItemView == null) {
            listItemView = LayoutInflater.from(getContext()).inflate(
                    R.layout.list_item, parent, false);
        }

        final Attraction currentAttraction = getItem(position);

        ImageView imageView = (ImageView) listItemView.findViewById(R.id.attraction_image);
        imageView.setImageResource(currentAttraction.getImageResourceId());

        TextView attractionName = (TextView) listItemView.findViewById(R.id.attraction_name);
        attractionName.setText(currentAttraction.getName());

        TextView location = (TextView) listItemView.findViewById(R.id.location);
        location.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                navigate(currentAttraction.getLocation());
            }
        });

        // Find the ImageView in the list_item.xml layout with the ID image.
        TextView contact = (TextView) listItemView.findViewById(R.id.contact);
        // Check if an image is provided for this word or not
        if (currentAttraction.hasContact()) {
            // If an image is available, display the provided image based on the resource ID
            contact.setText(currentAttraction.getContact());
            // Make sure the view is visible
            contact.setVisibility(View.VISIBLE);
        } else {
            // Otherwise hide the ImageView (set visibility to GONE)
            contact.setVisibility(View.GONE);
        }

        return listItemView;
    }

    public void navigate(String coordinates){

        Uri intentUri = Uri.parse("geo"+coordinates);
        Intent mapIntent = new Intent(Intent.ACTION_VIEW);
        mapIntent.setData(intentUri);
        mapIntent.setPackage("com.google.android.apps.maps");
        getContext().startActivity(mapIntent);
    }
}

标签： androidgoogle-mapsandroid-studioandroid-intenttextview

解决方案

您忘记了 geo 后的冒号：

Uri intentUri = Uri.parse("geo:"+coordinates);

这应该是它发现没有相关活动的原因。

使用 geo: 的格式在指定位置和缩放级别显示地图：

geo:latitude,longitude?z=zoom

缩放是可选的。

可以在此处找到文档：https ://developers.google.com/maps/documentation/urls/android-intents

这就是崩溃的原因。而且，作为额外的，您应该检查是否有任何活动来处理意图。因为其他设备无法安装地图应用。

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