java - 如何使用微调器和图像传递先前的数据？

我的Android编码有问题。我要进行更新。但首先，我正在尝试从编辑文本，微调框和图像中收集所有数据。但是我对微调器和图像有问题，无法获取以前的数据。如何使用微调器和图像获取以前的数据？例如：Image1

 

当用户单击Submit Button时，将显示完整的检索过程，然后它将转到该View Activity界面。在Image2中

 

显示了“编辑活动”界面，当用户单击“编辑”按钮时，用户可以从那里更新所有数据。现在的问题是，我无法使用微调器和图像来收集先前的数据以进行编辑/更新，如图2所示。我真的希望有人可以帮助我。。在此先感谢...

编码如下：

1）从View活动进行编码：

    EditAdsButton.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            Intent editAds = new Intent(ViewAdsActivity.this, EditAdsActivity.class);
            startActivity(editAds);

            String tn = ViewTuitionName.getText().toString();
            String pn = ViewProviderName.getText().toString();
            String pg = getIntent().getStringExtra("PG");

            Intent i = new Intent(ViewAdsActivity.this, EditAdsActivity.class);
            i.putExtra("TN", "" +tn);   // Collected from EditText or any other source
            i.putExtra("PN", "" +pn);
            i.putExtra("PG", "" +pg);
            startActivity(i);
        }
    });

2）从编辑活动（onCreate方法）进行编码：-

    Intent i = getIntent();
    String tn = i.getStringExtra("TN");
    String pn = i.getStringExtra("PN");
    String pg = getIntent().getStringExtra("PG");

    EditTuitionName.setText(tn);
    EditProviderName.setText(pn);
    EditProviderGender.setSelection(pg);

最佳答案

这是一个解决方案：

Constant.java

public class Constant {
    public static final String[] GENDER = {"Male", "Female", "Other"};
}

ViewAdsActivity.java

public class ViewAdsActivity extends AppCompatActivity {

    private CircleImageView avatar;
    private EditText name;
    private Spinner gender;
    private Button next;

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

        avatar = findViewById(R.id.avatar);
        name = findViewById(R.id.edit_text_name);
        gender = findViewById(R.id.spinner_gender);
        next = findViewById(R.id.button_next);


        // Render avatar
        String imageUrl = "https://vignette.wikia.nocookie.net/spiritedaway/images/6/69/Chihiro.jpg/revision/latest?cb=20170308090934";
        avatar.setTag(imageUrl);
        Picasso.get()
                .load(imageUrl)
                .into(avatar);

        // Render spinner
        ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, Constant.GENDER);
        gender.setAdapter(adapter);

        next.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(ViewAdsActivity.this, EditAdsActivity.class);

                intent.putExtra("imageUrl", (String) avatar.getTag());
                intent.putExtra("genderPosition", gender.getSelectedItemPosition());
                intent.putExtra("name", name.getText().toString());

                startActivity(intent);
            }
        });
    }
}

EditAdsActivity.java

public class EditAdsActivity extends AppCompatActivity {

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

        CircleImageView avatar = findViewById(R.id.avatar);
        EditText nameEditText = findViewById(R.id.edit_text_name);
        Spinner gender = findViewById(R.id.spinner_gender);

        String imageUrl = getIntent().getStringExtra("imageUrl");
        int genderPosition = getIntent().getIntExtra("genderPosition", 0);
        String name = getIntent().getStringExtra("name");

        // Render image view
        Picasso.get()
                .load(imageUrl)
                .into(avatar);

        // Render spinner
        ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, Constant.GENDER);
        gender.setAdapter(adapter);
        gender.setSelection(genderPosition);

        // Render edit text
        nameEditText.setText(name);
    }
}