Question

有没有办法在启动画面中自定义微调器？目前我正在使用cordova splashscreen插件，我想更改启动画面上显示的微调器的颜色。

Answer 1

在platforms/android/src/org/apache/cordova/splashscreen/SplashScreen.java，顶部：

import android.graphics.drawable.Drawable;
import android.content.res.Resources;

进一步深入底部替换为此功能：

 // Show only spinner in the center of the screen
private void spinnerStart() {
    cordova.getActivity().runOnUiThread(new Runnable() {
        public void run() {
            spinnerStop();

            spinnerDialog = new ProgressDialog(webView.getContext());
            spinnerDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
                public void onCancel(DialogInterface dialog) {
                    spinnerDialog = null;
                }
            });

            spinnerDialog.setCancelable(false);
            spinnerDialog.setIndeterminate(true);


            Resources activityRes = cordova.getActivity().getResources();
            int spinnerResId = activityRes.getIdentifier("customspinner", "drawable", cordova.getActivity().getPackageName());
            Drawable customSpinner = activityRes.getDrawable(spinnerResId);

            RelativeLayout centeredLayout = new RelativeLayout(cordova.getActivity());
            centeredLayout.setGravity(Gravity.CENTER);
            centeredLayout.setLayoutParams(new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

            ProgressBar progressBar = new ProgressBar(webView.getContext());
            progressBar.setIndeterminateDrawable(customSpinner);
            RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
            layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
            progressBar.setLayoutParams(layoutParams);

            centeredLayout.addView(progressBar);

            spinnerDialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
            spinnerDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

            spinnerDialog.show();
            spinnerDialog.setContentView(centeredLayout);
        }
    });
}

在platforms/android/res/drawable中 - 添加文件夹（如果该文件夹不存在） - 添加文件customspinner.xml：

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:pivotX="50%" android:pivotY="50%" android:fromDegrees="0"
    android:toDegrees="360">
    <shape android:shape="ring" android:innerRadiusRatio="3"
        android:thicknessRatio="8" android:useLevel="false">
        <size android:width="76dip" android:height="76dip" />
        <gradient android:type="sweep" android:useLevel="false"
            android:startColor="#FFFFFFFF" 
            android:endColor="#00FFFFFF"
            android:angle="0"
             />
    </shape>
</rotate>

原始答案：Cordova splash screen change spinner color on android

Answer 2

为ion-spinner提供颜色并不困难。你可以这样做 CSS

.spinner svg {
  width: 28px;
  height: 28px;
  stroke: #444;
  fill: #444;
}

HTML 的

<ion-spinner icon="circles "class="spinner-energized"></ion-spinner>

根据Ionic Docs。

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