平板电脑Android中的横向和纵向模式

Question

I have a question.I wanna use the app in landscape and portrait mode but I need information about when I rotate the device portrait to landscape, the app split to 2 fragments.

I research many websites but I haven't necessary infos about that. How can I do that?

EDIT

 productFlavors {
        phone {
            applicationId "packageName.app.phone"
            buildConfigField 'boolean', 'IsPhone', 'true'
            versionName ""
        }
        tablet {
            applicationId "packageName.app.tablet"
            buildConfigField 'boolean', 'IsPhone', 'false'
            versionName ""
        }
    }

I split my apk.I have a phone.apk and tablet.apk.

Answer 1

If you really want to know when the device rotate you can try something like this.

@Override
public void onConfigurationChanged(Configuration config) {
    super.onConfigurationChanged(config);

    if (config.orientation == Configuration.ORIENTATION_LANDSCAPE) {
        // "landscape"
    } else if (config.orientation == Configuration.ORIENTATION_PORTRAIT){
        //"portrait"
    }
}

But usually you are not supposed to do this. You just need to provide one layout for portrait and another one for lanscape and then let the layout load the required Fragments.

In the case of to separate phone.apk and a tablet.apk each apk should be shipped, using gradle, with its respective set of layout.

Answer 2

You could check angle of it and do anything.

import android.app.Activity;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.util.Log;
import android.view.OrientationEventListener;
import android.widget.Toast;

public class AndroidOrientationSensor extends Activity {

    OrientationEventListener myOrientationEventListener;

    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_main);

        myOrientationEventListener
                = new OrientationEventListener(this, SensorManager.SENSOR_DELAY_NORMAL) {

            @Override
            public void onOrientationChanged(int arg0) {
                // TODO Auto-generated method stub
                Log.d("GORIO", "angle: " + String.valueOf(arg0));
            }
        };

        if (myOrientationEventListener.canDetectOrientation()) {
            Toast.makeText(this, "Can DetectOrientation", Toast.LENGTH_LONG).show();
            myOrientationEventListener.enable();
        } else {
            Toast.makeText(this, "Can't DetectOrientation", Toast.LENGTH_LONG).show();
            finish();
        }
    }

    @Override
    protected void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();
        myOrientationEventListener.disable();
    }
}