Android 弹窗

弹出和隐藏进度条

private Dialog dialog;

private void showDialog(final Context ctx) {
    if (ctx instanceof Activity) {
        final Activity context = (Activity) ctx;
        context.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                int spacing = Uscreen.dp2Px(context, 16);
                LinearLayout layout = new LinearLayout(context);
                LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
                layout.setLayoutParams(layoutParams);
                layout.setGravity(Gravity.CENTER);
                layout.setPadding(spacing, spacing, spacing, spacing);
                // add ProgressBar
                ProgressBar bar = new ProgressBar(context);
                layout.addView(bar, layoutParams);

                dialog = new Dialog(context, android.R.style.Theme_Holo_Dialog_NoActionBar);
                dialog.setCancelable(false);
                dialog.getWindow().setDimAmount(0.3f);
                dialog.setContentView(layout);
                dialog.show();
            }
        });
    }

}

private void dismissDialog() {
    if (dialog != null && dialog.isShowing()) {
        dialog.dismiss();
    }
}

单个操作的 alert

public class AlertOneItem {
    private Context context;
    private String title;
    private String message;
    private Consumer<Boolean> consumer;
    private String positiveTips = "确定";
    private String negativeTips = "取消";

    private AlertOneItem(Context context, Consumer<Boolean> consumer) {
        this.context = context;
        this.consumer = consumer;
    }

    public static AlertOneItem builder(Context context, Consumer<Boolean> consumer) {
        return new AlertOneItem(context, consumer);
    }

    public AlertOneItem title(String title) {
        this.title = title;
        return this;
    }

    public AlertOneItem message(String message) {
        this.message = message;
        return this;
    }

    public AlertOneItem positiveTips(String positiveTips) {
        this.positiveTips = positiveTips;
        return this;
    }

    public AlertOneItem negativeTips(String negativeTips) {
        this.negativeTips = negativeTips;
        return this;
    }


    public void show() {
        AlertDialog.Builder builder = new AlertDialog.Builder(context);
        if (!TextUtils.isEmpty(title)) {
            builder.setTitle(title);
        }
        if (!TextUtils.isEmpty(message)) {
            builder.setMessage(message);
        }
        if (!TextUtils.isEmpty(negativeTips)) {
            builder.setNegativeButton(negativeTips, (dialog, which) -> consumer.accept(false));
        }

        if (!TextUtils.isEmpty(positiveTips)) {
            builder.setPositiveButton(positiveTips, (dialog, which) -> consumer.accept(true));
        }

        builder.setCancelable(true);
        builder.create();
        builder.show();
    }
}
// 调用
Udialog.AlertOneItem.builder(context, result -> {
        if (result) {
            toSetWallpaperAsync(context, imageView, color);
        }
    }).message("设置成壁纸?").show();

多个操作的 alert （方案 1）

enum OperateType {
    REFRESH("刷新"),
    COPY_LINK("复制链接"),
    COPY_MD_LINK("复制md链接"),
    OPEN_WITH_BROWSER("在浏览器中打开"),
    ;
    String title;

    OperateType(String title) {
        this.title = title;
    }

    public static OperateType indexOf(int index) {
        return OperateType.values()[index];
    }

    public static String[] toStrArray() {
        OperateType[] values = OperateType.values();
        String[] result = new String[values.length];
        for (int i = 0; i < values.length; i++) {
            result[i] = values[i].title;
        }
        return result;
    }
}

private void onMorePressed() {
    new AlertDialog.Builder(mContext)
            .setTitle("操作")
            .setItems(OperateType.toStrArray(), (dialog, which) -> {
                switch (OperateType.indexOf(which)) {
                    case REFRESH:
                        mWvContent.reload();
                        break;
                    case COPY_LINK:
                        copyToClipboard(mWvContent.getUrl(), "已复制到剪切板");
                        break;
                    case COPY_MD_LINK:
                        String title = mWvContent.getTitle();
                        String url = mWvContent.getUrl();
                        copyToClipboard("- [" + title + "]" + "(" + url + ")", "已复制到剪切板");
                        break;
                    case OPEN_WITH_BROWSER:
                        Uri uri = Uri.parse(mWvContent.getUrl());
                        Intent intent = new Intent(Intent.ACTION_VIEW, uri);
                        startActivity(intent);
                        break;
                    default:
                }
            })
            .create().show();
}

多个操作的 alert（方案 2）

public class AlertMultiItem {
    private List<String> nameList = new ArrayList<>();
    private List<Runnable> taskList = new ArrayList<>();
    private Context context;
    private String title;

    private AlertMultiItem(Context context) {
        this.context = context;
    }

    public static AlertMultiItem builder(Context context) {
        return new AlertMultiItem(context);
    }

    public AlertMultiItem title(String title) {
        this.title = title;
        return this;
    }

    public AlertMultiItem add(String title, Runnable runnable) {
        nameList.add(title);
        taskList.add(runnable);
        return this;
    }

    private String[] getItemNames() {
        String[] result = new String[nameList.size()];
        for (int i = 0; i < nameList.size(); i++) {
            result[i] = nameList.get(i);
        }
        return result;
    }

    public void show() {
        AlertDialog.Builder builder = new AlertDialog.Builder(context);
        if (!TextUtils.isEmpty(title)) {
            builder.setTitle(title);
        }
        builder.setItems(getItemNames(), (dialog, which) -> taskList.get(which).run());
        builder.create();
        builder.show();
    }
}

// 调用
Udialog.AlertMultiItem.builder(mContext)
        .add("复制内容", () -> copyContent())
        .add("复制全部", () -> copyAll())
        .add("删除此项", () -> delete())
        .show();