Flutter calls the native method and returns to the desktop

While developing XMPP, it was found that the limited functions of Flutter could not be implemented, so the implementation of native functions was required

import android.os.Bundle; import io.flutter.app.FlutterActivity; import io.flutter.plugin.common.MethodChannel; import io.flutter.plugins.GeneratedPluginRegistrant; import static com.example.wechat.VideoUtils.getLocalVideoThumbnail; import static com.example.wechat.VideoUtils.getVideoThumbnail; Public class MainActivity extends FlutterActivity {private final String CHANNEL_DESKTOP = private Final String CHANNEL_DESKTOP ="android/back/desktop"; Private Final String CHANNEL_VIDEO = private Final String CHANNEL_VIDEO ="video/img";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        GeneratedPluginRegistrant.registerWith(this);
        new MethodChannel(getFlutterView(), CHANNEL_DESKTOP).setMethodCallHandler(
                (methodCall, result) -> {
                    if (methodCall.method.equals("backDesktop")) {
                        result.success(true);
                        moveTaskToBack(false);
                    } else{ result.notImplemented(); }}); new MethodChannel(getFlutterView(), CHANNEL_VIDEO).setMethodCallHandler((methodCall, result) -> {if (methodCall.method.equals("getNetVideoImg")) {
                result.success(getVideoThumbnail(methodCall.argument("path"),
                        methodCall.argument("name")));
            } else if (methodCall.method.equals("getLocalVideoImg")) {
                result.success(getLocalVideoThumbnail(methodCall.argument("path"),
                        methodCall.argument("name")));
            } else{ result.notImplemented(); }}); }}Copy the code

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