如何在android中以编程方式更改Edittext Cursor Color？ [英] How to Change programmatically Edittext Cursor Color in android?

问题描述

在android中我们可以通过以下方式更改光标颜色：

In android we can change the cursor color via:

android：textCursorDrawable =@ drawable / black_color_cursor。

我们如何动态地执行此操作？

How can we do this dynamically?

在我的情况下，我将光标drawable设置为白色，但是我需要更改黑色怎么办？

In my case I have set cursor drawable to white, but i need to change black How to do ?

    // Set an EditText view to get user input
    final EditText input = new EditText(nyactivity);
    input.setTextColor(getResources().getColor(R.color.black));

推荐答案

使用一些反射为我做了诀窍

Using some reflection did the trick for me

Java：

// https://github.com/android/platform_frameworks_base/blob/kitkat-release/core/java/android/widget/TextView.java#L562-564
Field f = TextView.class.getDeclaredField("mCursorDrawableRes");
f.setAccessible(true);
f.set(yourEditText, R.drawable.cursor);

XML：

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

    <solid android:color="#ff000000" />

    <size android:width="1dp" />

</shape>

---

这是一种你可以使用的方法不需要XML：

---

Here is a method that you can use that doesn't need an XML:

public static void setCursorColor(EditText view, @ColorInt int color) {
  try {
    // Get the cursor resource id
    Field field = TextView.class.getDeclaredField("mCursorDrawableRes");
    field.setAccessible(true);
    int drawableResId = field.getInt(view);

    // Get the editor
    field = TextView.class.getDeclaredField("mEditor");
    field.setAccessible(true);
    Object editor = field.get(view);

    // Get the drawable and set a color filter
    Drawable drawable = ContextCompat.getDrawable(view.getContext(), drawableResId);
    drawable.setColorFilter(color, PorterDuff.Mode.SRC_IN);
    Drawable[] drawables = {drawable, drawable};

    // Set the drawables
    field = editor.getClass().getDeclaredField("mCursorDrawable");
    field.setAccessible(true);
    field.set(editor, drawables);
  } catch (Exception ignored) {
  }
}

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