E / AndroidRuntime：致命异常：

Question

有人可以帮我解决这个问题吗，欢迎大家的帮助，谢谢

点击从互联网https://code.i-harness.com/en/q/1ccc4e5上找到的代码中添加的共享按钮，我遇到了此错误 Android Studio 我正在使用android studio 3.2，如何解决此问题？ 有人知道如何解决这个问题吗？

public class DetalhesProdutoActivity extends AppCompatActivity {
private CarouselView carouselView;
private TextView titulo;
private TextView descricao;
private TextView estado;
private TextView preco;
private Anuncio anuncioSelecionado;
private File imagePath;

private void shareIt() {
    Uri uri = Uri.fromFile(imagePath);
    Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
    sharingIntent.setType("image/*");
    String shareBody = "In Tweecher, My highest score with screen shot";
    sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "My Tweecher score");
    sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
    sharingIntent.putExtra(Intent.EXTRA_STREAM, uri);

    startActivity(Intent.createChooser(sharingIntent, "Share via"));
}


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

    Button share = (Button) findViewById(R.id.share);
    share = (Button)findViewById(R.id.share);
    share.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Bitmap bitmap = takeScreenshot();
            saveBitmap(bitmap);
            shareIt();
        }
    });
    ContextCompat.checkSelfPermission(DetalhesProdutoActivity.this,
            Manifest.permission.READ_EXTERNAL_STORAGE);
    ContextCompat.checkSelfPermission(DetalhesProdutoActivity.this,
            Manifest.permission.WRITE_EXTERNAL_STORAGE);


    //fim admob
    //Configurar toolbar
    getSupportActionBar().setTitle("Detalhes da postagem");

    //Incializar componentes de interface
    inicializarComponentes();

    //Recupera anúncio para exibicao
    anuncioSelecionado = (Anuncio) getIntent().getSerializableExtra("anuncioSelecionado");

    if( anuncioSelecionado != null ){

        titulo.setText( anuncioSelecionado.getTitulo() );
        descricao.setText( anuncioSelecionado.getDescricao() );
        estado.setText( anuncioSelecionado.getEstado() );
        preco.setText( anuncioSelecionado.getValor());

        ImageListener imageListener = new ImageListener() {
            @Override
            public void setImageForPosition(int position, ImageView imageView) {
                String urlString = anuncioSelecionado.getFotos().get( position );
                Picasso.get().load(urlString).into(imageView);
            }
        };

        carouselView.setPageCount( anuncioSelecionado.getFotos().size() );
        carouselView.setImageListener( imageListener );

    }

}

public void visualizarTelefone(View view){
    Intent i = new Intent(Intent.ACTION_DIAL, Uri.fromParts("tel", anuncioSelecionado.getTelefone(), null ));
    startActivity( i );
}
public Bitmap takeScreenshot() {
    View rootView = findViewById(android.R.id.content).getRootView();
    rootView.setDrawingCacheEnabled(true);
    return rootView.getDrawingCache();
}

public void saveBitmap(Bitmap bitmap) {
    imagePath = new File(Environment.getExternalStorageDirectory() + "/screenshot.png");
    FileOutputStream fos;
    try {
        fos = new FileOutputStream(imagePath);
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
        fos.flush();
        fos.close();
    } catch (FileNotFoundException e) {
        Log.e("GREC", e.getMessage(), e);
    } catch (IOException e) {
        Log.e("GREC", e.getMessage(), e);
    }
}

private void inicializarComponentes(){
    carouselView = findViewById(R.id.carouselView);
    titulo = findViewById(R.id.textTituloDetalhe);
    descricao = findViewById(R.id.textDescricaoDetalhe);
    estado = findViewById(R.id.textEstadoDetalhe);
    preco = findViewById(R.id.textPrecoDetalhe);
}

} 错误

2019-01-26 23:36:36.010 7475-7475/com.xxx.xxx.xxxxxx E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.xxx.xxx.xxxxxx, PID: 7475
android.os.FileUriExposedException: file:///storage/emulated/0/screenshot.png exposed beyond app through ClipData.Item.getUri()
    at android.os.StrictMode.onFileUriExposed(StrictMode.java:1960)
    at android.net.Uri.checkFileUriExposed(Uri.java:2348)
    at android.content.ClipData.prepareToLeaveProcess(ClipData.java:942)
    at android.content.Intent.prepareToLeaveProcess(Intent.java:9854)
    at android.content.Intent.prepareToLeaveProcess(Intent.java:9860)
    at android.content.Intent.prepareToLeaveProcess(Intent.java:9839)
    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1610)
    at android.app.Activity.startActivityForResult(Activity.java:4487)
    at android.support.v4.app.BaseFragmentActivityApi16.startActivityForResult(BaseFragmentActivityApi16.java:54)
    at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:68)
    at android.app.Activity.startActivityForResult(Activity.java:4445)
    at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:751)
    at android.app.Activity.startActivity(Activity.java:4806)
    at android.app.Activity.startActivity(Activity.java:4774)
    at com.xxx.xxx.xxxxxx.activity.DetalhesProdutoActivity.shareIt(DetalhesProdutoActivity.java:50)
    at com.xxx.xxx.xxxxxx.activity.DetalhesProdutoActivity.access$000(DetalhesProdutoActivity.java:32)
    at com.xxx.xxx.xxxxxx.activity.DetalhesProdutoActivity$1.onClick(DetalhesProdutoActivity.java:66)