java - Picasso 显示错误路径一定不能为空？

Question

我正在尝试从 firebase 获取图像。所以当 firebase 中没有图像时，我希望我的应用程序 Logo 将设置在那里。但是我的应用程序崩溃了并将错误抛出到日志猫中。

我尝试使用 if-else 条件。以及成功和错误方法。但效果不佳。

private static final String Earnings_Freebies = "EARNINGS_FREEBIES";

    private Earnings_Freebies list;

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

list = (Earnings_Freebies) getIntent().getExtras().getSerializable(Earnings_Freebies);

        if (TextUtils.isEmpty(list.getmImageView())){
            m_EF_ImageView.setImageResource(R.drawable.app_logo);
            mProgressBarEF.setVisibility(View.GONE);
        }

        Picasso.with(getApplicationContext())
                .load(list.getmImageView())
                .into(m_EF_ImageView, new Callback() {
                    @Override
                    public void onSuccess() {
                        mProgressBarEF.setVisibility(View.GONE);
                        mFailedImage.setVisibility(View.GONE);
                    }

                    @Override
                    public void onError() {
                        mProgressBarEF.setVisibility(View.GONE);
                        mFailedImage.setVisibility(View.VISIBLE);

                    }
                });

我想要有错误的时候。或者我忘记将图像放入 firebase，然后应用程序 Logo 将自动设置为 ImageView 。

Answer 1

您可以尝试以下代码。如果没有帮助，请告诉我更多有关 Earnings_Freebies 模型的信息。

确保您使用的是 Picasso 的最新依赖项。

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

    list = (Earnings_Freebies) getIntent().getExtras().getSerializable(Earnings_Freebies);

    if (list == null && TextUtils.isEmpty(list.getmImageView())){
        m_EF_ImageView.setImageResource(R.drawable.app_logo);
        mProgressBarEF.setVisibility(View.GONE);

        Picasso.with(getApplicationContext())
                .load(R.mipmap.ic_launcher) // can also be a drawable
                .into(m_EF_ImageView);
    } else {
        Picasso.with(getApplicationContext())
                .load(list.getmImageView())
                .placeholder(R.mipmap.ic_launcher) // can also be a drawable
                .into(m_EF_ImageView);
    }
}