自定义的TextView实现一个带渐变效果的ListView
Use a user-defined TextView(MaskTextView) to achieve a ListView with gradient effect.
用一个自定义的TextView(MaskTextView)去实现一个带渐变效果的ListView
Introduce
Actually,this GradientListView is made by a user-defined TextView with MaskEffect,Through the text set to transparent and set the gradient background resource,then you get it. The text color is the background's color
实际上，这个渐变效果的ListView是用一个有蒙板效果的自定义TextView做的,通过把文字设置成透明,再设置一个渐变效果的背景资源，就完成了。文字的颜色就被是背景资源的颜色。
Attentions
1、The Class ‘MaskTextView’ (A user-defined TextView).
lineNumber 56:c.drawColor(Color.argb(255, 50, 50, 50));
You can change the color you need，ensure the Alpha value is 255 so the text's surrounding is not transparent.
(译：类MyTextView是自定义的TextView; 56行:c.drawColor(Color.argb(255, 50, 50, 50)); 您可以根据自己的需要进行调节颜色，但是Alpha值应该为255保证其不透明)
2、The Class ‘MaskTextView’
lineNumber 57:c.drawText(getText().toString(), 50, 80, mTextPaint);
You can change the text's position by need.
(译：类MyTextView 57行c.drawText(getText().toString(),50,80, mTextPaint); 调节文字的位置，根据需要自行调节)
3、In the item's xml_layout,Replace the TextView to MaskTextView；
(译：在ListView的条目布局中，把TextView替换为MaskTextView）
4、Set the background resources for the gradient background you want，You can display background with a FrameLayout.
(译：设置背景资源为你想要的渐变背景，可以用一个帧布局来显示背景）
<FrameLayout android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/bg4" > </FrameLayout> <ListView android:id="@+id/lv_gradient" android:layout_width="wrap_content" android:layout_height="wrap_content" android:divider="@null" />