自定义进度对话框 Android

Question

我已按照以下链接自定义进度对话框：

How to center progress indicator in ProgressDialog easily (when no title/text passed along)

custom Progress Dialog in android?

我想创建像这张图片 中的自定义进度对话框，但该代码在我的应用程序中没有显示进度对话框。请指导我如何做到这一点？还指导我如何根据我的项目主题更改进度对话框的颜色？

Answer 1

我是这样做的：

将此类用于自定义进度对话框：

public class CustomProgressbar extends Dialog {
    private static CustomProgressbar mCustomProgressbar;
    private CustomProgressbar mProgressbar;
    private OnDismissListener mOnDissmissListener;

    private CustomProgressbar(Context context) {
        super(context);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.dialog_progressbar);
        this.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
    }

    public CustomProgressbar(Context context, Boolean instance) {
        super(context);
        mProgressbar = new CustomProgressbar(context);
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        if (mOnDissmissListener != null) {
            mOnDissmissListener.onDismiss(this);
        }
    }

    public static void showProgressBar(Context context, boolean cancelable) {
        showProgressBar(context, cancelable, null);
    }

    public static void showProgressBar(Context context, boolean cancelable, String message) {
        if (mCustomProgressbar != null && mCustomProgressbar.isShowing()) {
            mCustomProgressbar.cancel();
        }
        mCustomProgressbar = new CustomProgressbar(context);
        mCustomProgressbar.setCancelable(cancelable);
        mCustomProgressbar.show();

    }

    public static void showProgressBar(Context context, OnDismissListener listener) {

        if (mCustomProgressbar != null && mCustomProgressbar.isShowing()) {
            mCustomProgressbar.cancel();
        }
        mCustomProgressbar = new CustomProgressbar(context);
        mCustomProgressbar.setListener(listener);
        mCustomProgressbar.setCancelable(Boolean.TRUE);
        mCustomProgressbar.show();
    }

    public static void hideProgressBar() {
        if (mCustomProgressbar != null) {
            mCustomProgressbar.dismiss();
        }
    }

    private void setListener(OnDismissListener listener) {
        mOnDissmissListener = listener;

    }

    public static void showListViewBottomProgressBar(View view) {
        if (mCustomProgressbar != null) {
            mCustomProgressbar.dismiss();
        }

        view.setVisibility(View.VISIBLE);
    }

    public static void hideListViewBottomProgressBar(View view) {
        if (mCustomProgressbar != null) {
            mCustomProgressbar.dismiss();
        }

        view.setVisibility(View.GONE);
    }

    public void showProgress(Context context, boolean cancelable, String message) {

        if (mProgressbar != null && mProgressbar.isShowing()) {
            mProgressbar.cancel();
        }
        mProgressbar.setCancelable(cancelable);
        mProgressbar.show();
    }

}

dialog_progressbar.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/bg_progressbar"
    android:gravity="center"
    android:padding="10dp" >

    <ProgressBar
        android:id="@+id/progressbar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

在drawable文件夹中添加以bg_progressbar.xml命名的drawable文件：

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <solid android:color="#7F000000" />

    <corners
        android:bottomLeftRadius="5dp"
        android:bottomRightRadius="5dp"
        android:topLeftRadius="5dp"
        android:topRightRadius="5dp" />

</shape>

现在只要你想启动进度对话框，只需写1行代码：

CustomProgressbar.showProgressBar(MainActivity.this, false);

当你想dismiss Progress对话框时，只需写1行 代码：

CustomProgressbar.hideProgressBar();

希望这会对你有所帮助。