How can I make an image transparent on Android

Question

I am using a linear layout and frame layout  In the linear layout I keep an image as background and in the frame layout I keep an imageView  In that imageView I give an image   Now I want to make the second image  that is in the imageView  transparent  How can I do this

User · Answer

For 20  transparency  this worked for me   Button bu    Button findViewById R id button1   bu getBackground   setAlpha 204

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Try this   ImageView myImage    ImageView  findViewById R id myImage   myImage setAlpha 127     value   0-255   Where 0 is fully transparent and 255 is fully opaque    Note  setAlpha int  is deprecated in favor of setAlpha float  where 0 is fully transparent and 1 is fully opaque  Use it like  myImage setAlpha 0 5f

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As setAlpha int has been deprecated  setImageAlpha  int  can be used  ImageView img    ImageView  findViewById R id img image   img setImageAlpha 127     value   0-255   Where 0 is fully transparent and 255 is fully opaque

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Image alpha sets just opacity to ImageView which makes Image blurry  try adding tint attribute in ImageView   android tint   66000000    It can also be done programatically    imageView setColorFilter R color transparent     where you need to define transparent color in your colors xml   lt color name  transparent  gt  66000000 lt  color gt

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Set transparency using setAlpha float alpha   The below code works for me were I used an alpha value in float  0 - 1    0  Full Transparent 0 5 - 50   Transparent 1  Full Opaque  ImageView imageView    ImageView  itemView findViewById R id imageView   imageView setImageResource mResources position    imageView setAlpha  80f

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Set an id attribute on the ImageView    lt ImageView android id    id myImage    In your code where you wish to hide the image  you ll need the following code   First  you ll need a reference to the ImageView   ImageView myImage    ImageView  findViewById R id myImage     Then  set Visibility to GONE   myImage setVisibility View GONE     If you want to have code elsewhere that makes it visible again  just set it to Visible the same way   myImage setVisibility View VISIBLE     If you mean  fully transparent   the above code works  If you mean  partially transparent   use the following method   int alphaAmount   128     Some value 0-255 where 0 is fully transparent and 255 is fully opaque myImage setAlpha alphaAmount

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On newer versions of Android  post Android 4 2  Jelly Bean  at least   the setAlpha int value  method is depreciated  Instead  use the setAlpha float value  method that takes a float between 0 and 1 where 0 is complete transparency and 1 is no transparency

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The method setAlpha int  from the type ImageView is deprecated   Instead of  image setImageAlpha 127     value   0-255   Where 0 is fully transparent and 255 is fully opaque

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android alpha does this in XML    lt ImageView     android layout width  wrap content      android layout height  wrap content      android src   drawable blah      android alpha   75   gt

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If you are in an XML file  use the following to make your imageview transparent    android background   null

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Use   ImageView image    ImageView  findViewById R id image   image setAlpha 150      Value   0-255   Where 0 is fully transparent                         and 255 is fully opaque  Set the value according                         to your choice  and you can also use seekbar to                         maintain the transparency

User · Answer

In XML  use   android background   android color transparent

[android] How can I make an image transparent on Android?

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