I'm dynamically creating buttons. I styled them using XML first, and I'm trying to take the XML below and make it programattic.
<Button
android:id="@+id/buttonIdDoesntMatter"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:text="buttonName"
android:drawableLeft="@drawable/imageWillChange"
android:onClick="listener"
android:layout_width="fill_parent">
</Button>
This is what I have so far. I can do everything but the drawable.
linear = (LinearLayout) findViewById(R.id.LinearView);
Button button = new Button(this);
button.setText("Button");
button.setOnClickListener(listener);
button.setLayoutParams(
new LayoutParams(
android.view.ViewGroup.LayoutParams.FILL_PARENT,
android.view.ViewGroup.LayoutParams.WRAP_CONTENT
)
);
linear.addView(button);
You can use the setCompoundDrawables
method to do this. See the example here. I used this without using the setBounds
and it worked. You can try either way.
UPDATE: Copying the code here incase the link goes down
Drawable img = getContext().getResources().getDrawable( R.drawable.smiley );
img.setBounds( 0, 0, 60, 60 );
txtVw.setCompoundDrawables( img, null, null, null );
or
Drawable img = getContext().getResources().getDrawable( R.drawable.smiley );
txtVw.setCompoundDrawablesWithIntrinsicBounds( img, null, null, null);
or
txtVw.setCompoundDrawablesWithIntrinsicBounds( R.drawable.smiley, 0, 0, 0);
Simply you can try this also
txtVw.setCompoundDrawablesWithIntrinsicBounds(R.drawable.smiley, 0, 0, 0);
For me, it worked:
button.setCompoundDrawablesWithIntrinsicBounds(com.example.project1.R.drawable.ic_launcher, 0, 0, 0);
myEdtiText.setCompoundDrawablesWithIntrinsicBounds( R.drawable.smiley,0, 0, 0);
• Kotlin Version
Use below snippet to add a drawable left to the button:
val drawable = ContextCompat.getDrawable(context, R.drawable.ic_favorite_white_16dp)
button.setCompoundDrawablesWithIntrinsicBounds(drawable, null, null, null)
.
• Important Point in Using Android Vector Drawable
When you are using an android vector drawable and want to have backward compatibility for API below 21, add the following codes to:
In app level build.gradle
:
android {
defaultConfig {
vectorDrawables.useSupportLibrary = true
}
}
In Application class:
class MyApplication : Application() {
override fun onCreate() {
super.onCreate()
AppCompatDelegate.setCompatVectorFromResourcesEnabled(true)
}
}
I did this:
// Left, top, right, bottom drawables.
Drawable[] drawables = button.getCompoundDrawables();
// get left drawable.
Drawable leftCompoundDrawable = drawables[0];
// get new drawable.
Drawable img = getContext().getResources().getDrawable(R.drawable.ic_launcher);
// set image size (don't change the size values)
img.setBounds(leftCompoundDrawable.getBounds());
// set new drawable
button.setCompoundDrawables(img, null, null, null);
as @Jérémy Reynaud pointing out, as described in this answer, the safest way to set the left drawable without changing the values of the other drawables (top, right, and bottom) is by using the previous values from the button with setCompoundDrawablesWithIntrinsicBounds:
Drawable leftDrawable = getContext().getResources()
.getDrawable(R.drawable.yourdrawable);
// Or use ContextCompat
// Drawable leftDrawable = ContextCompat.getDrawable(getContext(),
// R.drawable.yourdrawable);
Drawable[] drawables = button.getCompoundDrawables();
button.setCompoundDrawablesWithIntrinsicBounds(leftDrawable,drawables[1],
drawables[2], drawables[3]);
So all your previous drawable will be preserved.
Following is the way to change the color of the left icon in edit text and set it in left side.
Drawable img = getResources().getDrawable( R.drawable.user );
img.setBounds( 0, 0, 60, 60 );
mNameEditText.setCompoundDrawables(img,null, null, null);
int color = ContextCompat.getColor(this, R.color.blackColor);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
DrawableCompat.setTint(img, color);
} else {
img.mutate().setColorFilter(color, PorterDuff.Mode.SRC_IN);
}
Might be helpful:
TextView location;
location=(TextView)view.findViewById(R.id.complain_location);
//in parameter (left,top,right,bottom) any where you wnat to put
location.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.arrow,0);
If you are using drawableStart, drawableEnd, drawableTop or drawableBottom; you must use "setCompoundDrawablesRelativeWithIntrinsicBounds"
edittext.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, R.drawable.anim_search_to_close, 0)
Try this:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
fillButton[i].setBackground(getBaseContext().getResources().getDrawable(R.drawable.drawable_name));
}
else{
fillButton[i].setBackgroundColor(Color.argb(255,193,234,203));
}
Try this:
((Button)btn).getCompoundDrawables()[0].setAlpha(btn.isEnabled() ? 255 : 100);
来源:https://stackoverflow.com/questions/4502605/how-to-programmatically-set-drawableleft-on-android-button