Textview-shadow Shadow Implementation

Directly on the code

1) Achieve common effects

 <TextViewAndroid:layout_width= "Match_parent"Android:layout_height= "Match_parent"Android:shadowcolor= "#ff0000"ANDROID:SHADOWDX= "3"Android:shadowdy= "3"Android:shadowradius= "1"Android:text= "ABCDEFG"Android:textcolor= "#0000ff"android:textsize= "100SP" />

The operation results are as follows

2) Influence of each property value under test

1.

android:shadowradius= "0"

Results

So, just let

Shadowradius = 0, there will be no shadow display

2.

Android:shadowradius= "20"

Results

Its main control is the width of the shadow, its value is also large, the larger the shadow, and the lighter the color

3. Test the role of the Dx,dy

        android:shadowdx= "android:shadowdy="        30 "

Results

That is, the offset of the shadow.

Summarized as follows

1. Android:shadowcolor: The color of the shadow

2. ANDROID:SHADOWDX: Offset in the horizontal direction

3. Android:shadowdy: Offset in the vertical direction

4. Android:shadowradius: Is the radius of the shadow size

The above variables are all PX units. Also, if you want to use @dimen reference, you will get an error.

If you want to use it in your code, you can use the following methods

 Packagecom.example.imagetest;ImportAndroid. R.integer;Importandroid.app.Activity;Importandroid.graphics.drawable.Drawable;ImportAndroid.os.Bundle;ImportAndroid.view.View;ImportAndroid.widget.Button;ImportAndroid.widget.ImageView;ImportAndroid.widget.TextView; Public classMainactivityextendsActivity {TextView TV;    Button BT; intA; floatT1; floatT2; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); TV=(TextView) Findviewbyid (r.id.tv); BT=(Button) Findviewbyid (R.ID.BT); A= 0; T1=getresources (). Getdimension (R.dimen.activity_horizontal_margin); T2=getresources (). Getdimension (R.dimen.activity_vertical_margin); Bt.setonclicklistener (NewView.onclicklistener () {@Override Public voidOnClick (View arg0) {if(A = = 1) {                    //R.color No effecttv.setshadowlayer (t1, T1, T1, R.COLOR.AAA); A= 0; } Else{tv.setshadowlayer (t2, T2, T2,0x800000ff); A= 1; } bt.settext (A+ "");    }        }); }        }

The Setshadowlayer method.

Setshadowlayer (radius, dx, dy, color);

Its four parameters, respectively, corresponding to the above four properties

Four attribute values, either write directly or use GetResource for a one-step conversion.

Textview-shadow Shadow Implementation