方向切换后播放声音文件“Android Studio”

Question

我的程序应该播放打喷嚏和擤鼻涕的声音。如果点击了打喷嚏声音的按钮，它就会被播放。在此之后，如果设备得到旋转，它应该播放鼻涕声音（反之亦然，为鼻涕按钮）。我一直在尝试使用onSaveInstance和onRestoreInstance,但它们都不起作用。我漏了什么吗？

下面是我目前在主activity上的代码：

package com.example.togglemediaplayer;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onSaveInstanceState(@NonNull Bundle outState) {
        super.onSaveInstanceState(outState);
    }

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

        final MediaPlayer sneezeSound = MediaPlayer.create(this, R.raw.sneeze2);
        final MediaPlayer blowSound = MediaPlayer.create(this, R.raw.blow_nose);

        Button sneeze = (Button) this.findViewById(R.id.sneezeButton);
        sneeze.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                sneezeSound.start();
            }
        });

        Button blow = (Button) this.findViewById(R.id.blowButton);
        blow.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                blowSound.start();
            }
        });

    }
}

我还在清单文件android:configchanges=“orientationscreensize”中添加了配置更改

Answer 1

您可以在此方法中捕获rotate事件

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

    if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
        Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
    } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
        Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
    }
}