ProgressDialog - 如何删除数字

Question

我正在关注 ApiDemos 中的进度对话框示例。 一切都很顺利，除了一件事 - 我想删除出现在栏下方的数字（那些从 0 到 .getMax() 的运行数字。

找不到如何做到这一点。

有人吗？

Ori

Answer 1

我采纳了@MartinVonMartinsgrün 的答案并对其进行了一些修改。该解决方案只是利用 Honeycomb+ 中的 API 调用，而它使用反射来实现 Gingerbread 和之前的相同目标。

ProgressDialog dialog;

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
    dialog = new ProgressDialog(getContext());
    dialog.setProgressNumberFormat(null);
} else {
    dialog = new ProgressDialog(getContext()) {
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            try {
                Field field = ProgressDialog.class.getDeclaredField("mProgressNumber");

                field.setAccessible(true);
                TextView textView = (TextView)field.get(this);
                field.setAccessible(false);

                textView.setVisibility(View.GONE);
            } catch (Exception e) {
                // Ignore the exception ... We'll just let the dialog show the bytes. It's not ideal but it works.
                Log.w("ProgressDialog", "Failed to hide the progress number via reflection.", e);
            }
        }
    };
}

// Further configure the dialog ...

dialog.show();

Answer 2

使用 api 11，我们可以通过调用：

progressDialog.setProgressNumberFormat(null);
progressDialog.setProgressPercentFormat(null);

Answer 3

使用此代码适用于 Android < API 级别 11。它使用反射将可见性设置为 GONE：

public class CustomProgressDialog extends ProgressDialog {

public CustomProgressDialog(Context context) {
    super(context);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    try {
        Method method = TextView.class.getMethod("setVisibility",
                Integer.TYPE);

        Field[] fields = this.getClass().getSuperclass()
                .getDeclaredFields();

        for (Field field : fields) {
            if (field.getName().equalsIgnoreCase("mProgressNumber")) {
                field.setAccessible(true);
                TextView textView = (TextView) field.get(this);
                method.invoke(textView, View.GONE);
            }
        }
    } catch (Exception e) {
        Log.e(TAG,
                "Failed to invoke the progressDialog method 'setVisibility' and set 'mProgressNumber' to GONE.",
                e);
    }
}
}

Answer 4

为了完整起见，我使用 Martin 的答案来构建我的课程：

import java.lang.reflect.Field;
import java.lang.reflect.Method;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

public class CustomProgressDialog extends ProgressDialog {

    private int progressPercentVisibility = View.VISIBLE;
    private int progressNumberVisibility = View.VISIBLE;

    public CustomProgressDialog(Context context, int progressPercentVisibility, int progressNumberVisibility) {
        super(context);

        this.progressPercentVisibility = progressPercentVisibility;
        this.progressNumberVisibility = progressNumberVisibility;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setFieldVisibility("mProgressPercent", progressPercentVisibility);
        setFieldVisibility("mProgressNumber", progressNumberVisibility);
    }

    private void setFieldVisibility(String fieldName, int visibility) {
        try {
            Method method = TextView.class.getMethod("setVisibility", Integer.TYPE);

            Field[] fields = this.getClass().getSuperclass()
                    .getDeclaredFields();

            for (Field field : fields) {
                if (field.getName().equalsIgnoreCase(fieldName)) {
                    field.setAccessible(true);
                    TextView textView = (TextView) field.get(this);
                    method.invoke(textView, visibility);
                }
            }
        } catch (Exception e) {
        }
    }
}

通过这个，您还可以隐藏百分比。

Answer 5

刚查了一下ProgressDialog.java，没有官方的方法。

选择是：

• 子类化它，通过反射到 .setVisibility(View.GONE) 访问 mProgressNumber；

• 编写您自己的实现。