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change action bar expander

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Adrian Ulrich 2015-06-01 18:02:27 +02:00
parent fa7c70b1de
commit 3d3bc45fe1
1 changed files with 26 additions and 41 deletions
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67
src/ch/blinkenlights/android/vanilla/ActionBarControls.java
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@ -24,62 +24,47 @@ package ch.blinkenlights.android.vanilla;
import android.content.Context;
import android.util.AttributeSet;
import android.view.ViewGroup;
import android.view.View;
import android.widget.LinearLayout;
import android.os.Build;
import android.util.DisplayMetrics;
/**
* LinearLayout that contains some hacks for sizing inside an ActionBar.
*/
public class ActionBarControls extends LinearLayout {
private final int dpiMaxWidth = 350;
private final int dpiCompatMax = 200;
private final int dpiElement = 50;
private final int slackElements = 2;
private final int dpiElementLp = 52; // Size of the ActionBarSearch icon in 5.x (50 + some slack)
private final int dpiElementHolo = 64; // Size of the ActionBarSearch icon in HOLO
private final int dpiMaxWidth = 350; // Never use more then 350 DPIs
private final int visibleElements = 2; // The ActionBarSearch + Menu icons are visible
public ActionBarControls(Context context, AttributeSet attrs)
{
public ActionBarControls(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public void onMeasure(int ws, int hs)
{
ViewGroup parent = (ViewGroup)this.getParent();
int pxUsed = 0; // pixels used by child elements, excluding us
int pxTotal = 0; // pixels we can actually use
// Measure how much space we got and how much is already used
// by other children
if (parent != null) {
// We are item 0, so we skip ourselfs
for (int i=1; i<parent.getChildCount(); i++) {
pxUsed += parent.getChildAt(i).getWidth();
}
View topParent = (View)parent.getParent();
if (topParent != null) {
pxTotal = topParent.getWidth();
}
}
final float density = getResources().getDisplayMetrics().density;
int widthMode = MeasureSpec.getMode(ws);
public void onMeasure(int ws, int hs) {
super.onMeasure(ws, hs);
if (widthMode != MeasureSpec.EXACTLY && pxTotal > 0) {
int pxAvailable = (pxTotal - (int)(density * dpiElement * slackElements));
int pxMaxWidth = (int)(dpiMaxWidth * density);
final float density = getResources().getDisplayMetrics().density;
final int dpiElement = ( android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ? dpiElementLp : dpiElementHolo );
int widthMode = MeasureSpec.getMode(ws);
if (pxAvailable <= 0 || pxAvailable > pxMaxWidth) {
pxAvailable = pxMaxWidth;
if (widthMode != MeasureSpec.EXACTLY) {
float dpiAvailable = (getSmallestAxisPx() / density) - (dpiElement * visibleElements);
if (dpiAvailable > dpiMaxWidth || dpiAvailable < 1) {
dpiAvailable = dpiMaxWidth;
}
if (android.os.Build.VERSION.SDK_INT < 21) {
pxAvailable = (int)(dpiCompatMax * density);
}
setMeasuredDimension( pxAvailable, (int)(dpiElement * density));
setMeasuredDimension((int)(dpiAvailable * density), (int)(dpiElement * density));
}
}
/**
* Returns the smaller axis of the display dimensions
* @return The dimension of the smaller axis in pixels
*/
private final int getSmallestAxisPx() {
DisplayMetrics metrics = getResources().getDisplayMetrics();
return (metrics.widthPixels > metrics.heightPixels ? metrics.heightPixels : metrics.widthPixels);
}
}