android 百度map 一个layout加载多个mapview,布局文件使用com.baidu.mapapi.map.MapView的问题...

在一个layout中加载多个MapView是不支持的，因为MapView占用了大量的系统资源。因此，如果您需要在同一界面中显示多个地图，则可以考虑使用一个MapView和多个TextureView，然后在TextureView中呈现不同的地图。以下是一个简单的示例：

在您的布局文件中，只需添加一个MapView和多个TextureView：

<com.baidu.mapapi.map.MapView
    android:id="@+id/map_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

<TextureView
    android:id="@+id/texture_view1"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<TextureView
    android:id="@+id/texture_view2"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

在您的活动中，您可以使用以下代码来获取MapView的纹理：

private TextureView mTextureView1;
private TextureView mTextureView2;

private MapView mMapView;
private BaiduMap mBaiduMap;

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

    mMapView = (MapView) findViewById(R.id.map_view);
    mBaiduMap = mMapView.getMap();

    mTextureView1 = (TextureView) findViewById(R.id.texture_view1);
    mTextureView2 = (TextureView) findViewById(R.id.texture_view2);

    mMapView.getMapAsync(new OnMapReadyCallback() {
        @Override
        public void onMapReady(BaiduMap baiduMap) {
            mBaiduMap = baiduMap;

            mTextureView1.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
                @Override
                public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int i, int i1) {
                    mMapView.setSurfaceTexture(surfaceTexture);
                }

                @Override
                public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int i, int i1) {

                }

                @Override
                public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
                    return false;
                }

                @Override
                public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {

                }
            });

            mTextureView2.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
                @Override
                public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int i, int i1) {
                    mMapView.setSurfaceTexture(surfaceTexture);
                }

                @Override
                public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int i, int i1) {

                }

                @Override
                public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
                    return false;
                }

                @Override
                public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {

                }
            });
        }
    });
}

在上面的代码中，我们首先获取了MapView和两个TextureView。然后，我们使用mMapView.getMapAsync()在MapView准备好后设置纹理视图的侦听器。在纹理视图的回调方法中，我们将纹理视图的表面纹理设置为MapView的表面纹理。

希望这可以帮助您解决问题。