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Code Issues Projects Releases Wiki Activity

Add a password strength meter to SetupActivity. Dev task #42.

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akwizgran
2014-01-09 01:29:00 +00:00
parent 1a53e9e908
commit ea47420e99
8 changed files with 168 additions and 14 deletions
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52
briar-android/src/org/briarproject/android/util/StrengthMeter.java Normal file
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package org.briarproject.android.util;
import static android.graphics.drawable.ClipDrawable.HORIZONTAL;
import static android.view.Gravity.LEFT;
import static org.briarproject.api.crypto.PasswordStrengthEstimator.QUITE_STRONG;
import static org.briarproject.api.crypto.PasswordStrengthEstimator.QUITE_WEAK;
import static org.briarproject.api.crypto.PasswordStrengthEstimator.STRONG;
import static org.briarproject.api.crypto.PasswordStrengthEstimator.WEAK;
import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.ClipDrawable;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.RectShape;
import android.widget.ProgressBar;
public class StrengthMeter extends ProgressBar {
private static final int MAX = 100;
private static final int RED = Color.rgb(255, 0, 0);
private static final int ORANGE = Color.rgb(255, 160, 0);
private static final int YELLOW = Color.rgb(250, 255, 15);
private static final int LIME = Color.rgb(190, 255, 0);
private static final int GREEN = Color.rgb(7, 255, 0);
private final ShapeDrawable bar;
public StrengthMeter(Context context) {
super(context, null, android.R.attr.progressBarStyleHorizontal);
bar = new ShapeDrawable(new RectShape());
bar.getPaint().setColor(Color.RED);
ClipDrawable progress = new ClipDrawable(bar, LEFT, HORIZONTAL);
setProgressDrawable(progress);
setIndeterminate(false);
}
@Override
public int getMax() {
return MAX;
}
public void setStrength(float strength) {
if(strength < 0 || strength > 1) throw new IllegalArgumentException();
int colour;
if(strength < WEAK) colour = RED;
else if(strength < QUITE_WEAK) colour = ORANGE;
else if(strength < QUITE_STRONG) colour = YELLOW;
else if(strength < STRONG) colour = LIME;
else colour = GREEN;
bar.getPaint().setColor(colour);
setProgress((int) (strength * MAX));
}
}