添加不透明的“阴影"(大纲)到 Android TextView

本文介绍了添加不透明的“阴影"(大纲)到 Android TextView的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有一个

但它看起来像这样:

您可以看到当前阴影模糊并逐渐消失.我想要一个坚实的、不透明的阴影.但是怎么做呢?

我当前的代码是:

解决方案

我尝试了其他帖子中的所有技巧、技巧和窍门，例如

I have a TextView in my Activity to which I want to add a shadow. It is supposed to look like in OsmAnd (100% opaque):





But it looks like this:



You can see that the current shadow is blurred and fades away. I want a solid, opaque shadow. But how?

My current code is:
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/speedTextView"
    android:text="25 km/h"

    android:textSize="24sp"
    android:textStyle="bold"
    android:textColor="#000000"
    android:shadowColor="#ffffff"
    android:shadowDx="0"
    android:shadowDy="0"
    android:shadowRadius="6"
/>

 解决方案 
I tried all the hacks, tips and tricks in the other posts like here, here and here.
None of them works that great or looks so good.
Nowthisishowyoureallydoit(foundintheSourceoftheOsmAndapp):
You use a FrameLayout (which has the characteristic of laying its components over each other) and put 2 TextViews inside at the same position.
MainActivity.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    android:background="#445566">

    <FrameLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="top"
        android:layout_weight="1">

        <TextView
            android:id="@+id/textViewShadowId"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="top"
            android:textSize="36sp"
            android:text="123 ABC" 
            android:textColor="#ffffff" />

        <TextView
            android:id="@+id/textViewId"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="top"
            android:textSize="36sp"
            android:text="123 ABC"
            android:textColor="#000000" />
    </FrameLayout>

</LinearLayout>
And in the onCreate method of your activity you set the stroke width of the shadow TextView and change it from FILL to STROKE:
import android.graphics.Paint;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
    
public class MainActivity extends AppCompatActivity {    

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    
        //here comes the magic
        TextView textViewShadow = (TextView) findViewById(R.id.textViewShadowId);
        textViewShadow.getPaint().setStrokeWidth(5);
        textViewShadow.getPaint().setStyle(Paint.Style.STROKE);
    }
}
The result looks like this:


                        这篇关于添加不透明的“阴影"(大纲)到 Android TextView的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！
                  本站部分内容来源互联网,如果有图片或者内容侵犯您的权益请联系我们删除！

添加不透明的“阴影"(大纲)到 Android TextView

问题描述

Nowthisishowyoureallydoit(foundintheSourceoftheOsmAndapp):

相关文档推荐