TextInputLayout.java

/*     */ package android.support.design.widget;
/*     */ 
/*     */ import android.content.Context;
/*     */ import android.content.res.ColorStateList;
/*     */ import android.content.res.Resources.Theme;
/*     */ import android.content.res.TypedArray;
/*     */ import android.graphics.Canvas;
/*     */ import android.graphics.Paint;
/*     */ import android.os.Handler;
/*     */ import android.os.Handler.Callback;
/*     */ import android.os.Message;
/*     */ import android.support.design.R.style;
/*     */ import android.support.design.R.styleable;
/*     */ import android.support.v4.view.AccessibilityDelegateCompat;
/*     */ import android.support.v4.view.ViewCompat;
/*     */ import android.support.v4.view.ViewPropertyAnimatorCompat;
/*     */ import android.support.v4.view.ViewPropertyAnimatorListenerAdapter;
/*     */ import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat;
/*     */ import android.text.Editable;
/*     */ import android.text.TextUtils;
/*     */ import android.text.TextWatcher;
/*     */ import android.util.AttributeSet;
/*     */ import android.util.TypedValue;
/*     */ import android.view.View;
/*     */ import android.view.View.OnFocusChangeListener;
/*     */ import android.view.ViewGroup.LayoutParams;
/*     */ import android.view.accessibility.AccessibilityEvent;
/*     */ import android.view.animation.AccelerateInterpolator;
/*     */ import android.widget.EditText;
/*     */ import android.widget.LinearLayout;
/*     */ import android.widget.LinearLayout.LayoutParams;
/*     */ import android.widget.TextView;
/*     */ import java.util.List;
/*     */ 
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/*     */ 
/*     */ 
/*     */ 
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/*     */ public class TextInputLayout
/*     */   extends LinearLayout
/*     */ {
/*     */   private static final int ANIMATION_DURATION = 200;
/*     */   private static final int MSG_UPDATE_LABEL = 0;
/*     */   private EditText mEditText;
/*     */   private CharSequence mHint;
/*     */   private boolean mErrorEnabled;
/*     */   private TextView mErrorView;
/*     */   private int mErrorTextAppearance;
/*     */   private ColorStateList mLabelTextColor;
/*     */   private final CollapsingTextHelper mCollapsingTextHelper;
/*     */   private final Handler mHandler;
/*     */   private ValueAnimatorCompat mAnimator;
/*     */   
/*     */   public TextInputLayout(Context context)
/*     */   {
/*  73 */     this(context, null);
/*     */   }
/*     */   
/*     */   public TextInputLayout(Context context, AttributeSet attrs) {
/*  77 */     super(context, attrs);
/*     */     
/*  79 */     setOrientation(1);
/*  80 */     setWillNotDraw(false);
/*     */     
/*  82 */     this.mCollapsingTextHelper = new CollapsingTextHelper(this);
/*  83 */     this.mHandler = new Handler(new Handler.Callback()
/*     */     {
/*     */       public boolean handleMessage(Message message) {
/*  86 */         switch (message.what) {
/*     */         case 0: 
/*  88 */           TextInputLayout.this.updateLabelVisibility(true);
/*  89 */           return true;
/*     */         }
/*  91 */         return false;
/*     */       }
/*     */       
/*  94 */     });
/*  95 */     this.mCollapsingTextHelper.setTextSizeInterpolator(AnimationUtils.FAST_OUT_SLOW_IN_INTERPOLATOR);
/*  96 */     this.mCollapsingTextHelper.setPositionInterpolator(new AccelerateInterpolator());
/*  97 */     this.mCollapsingTextHelper.setCollapsedTextVerticalGravity(48);
/*     */     
/*  99 */     TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TextInputLayout, 0, R.style.Widget_Design_TextInputLayout);
/*     */     
/* 101 */     this.mHint = a.getText(R.styleable.TextInputLayout_android_hint);
/*     */     
/* 103 */     int hintAppearance = a.getResourceId(R.styleable.TextInputLayout_hintTextAppearance, -1);
/*     */     
/* 105 */     if (hintAppearance != -1) {
/* 106 */       this.mCollapsingTextHelper.setCollapsedTextAppearance(hintAppearance);
/*     */     }
/*     */     
/* 109 */     this.mErrorTextAppearance = a.getResourceId(R.styleable.TextInputLayout_errorTextAppearance, 0);
/* 110 */     boolean errorEnabled = a.getBoolean(R.styleable.TextInputLayout_errorEnabled, false);
/*     */     
/*     */ 
/*     */ 
/* 114 */     this.mLabelTextColor = createLabelTextColorStateList(this.mCollapsingTextHelper.getCollapsedTextColor());
/*     */     
/*     */ 
/* 117 */     this.mCollapsingTextHelper.setCollapsedTextColor(this.mLabelTextColor.getDefaultColor());
/* 118 */     this.mCollapsingTextHelper.setExpandedTextColor(this.mLabelTextColor.getDefaultColor());
/*     */     
/* 120 */     a.recycle();
/*     */     
/* 122 */     if (errorEnabled) {
/* 123 */       setErrorEnabled(true);
/*     */     }
/*     */     
/* 126 */     if (ViewCompat.getImportantForAccessibility(this) == 0)
/*     */     {
/*     */ 
/* 129 */       ViewCompat.setImportantForAccessibility(this, 1);
/*     */     }
/*     */     
/*     */ 
/* 133 */     ViewCompat.setAccessibilityDelegate(this, new TextInputAccessibilityDelegate(null));
/*     */   }
/*     */   
/*     */   public void addView(View child, int index, ViewGroup.LayoutParams params)
/*     */   {
/* 138 */     if ((child instanceof EditText)) {
/* 139 */       params = setEditText((EditText)child, params);
/* 140 */       super.addView(child, 0, params);
/*     */     }
/*     */     else {
/* 143 */       super.addView(child, index, params);
/*     */     }
/*     */   }
/*     */   
/*     */   private LinearLayout.LayoutParams setEditText(EditText editText, ViewGroup.LayoutParams lp)
/*     */   {
/* 149 */     if (this.mEditText != null) {
/* 150 */       throw new IllegalArgumentException("We already have an EditText, can only have one");
/*     */     }
/* 152 */     this.mEditText = editText;
/*     */     
/*     */ 
/* 155 */     this.mCollapsingTextHelper.setExpandedTextSize(this.mEditText.getTextSize());
/*     */     
/*     */ 
/* 158 */     this.mEditText.addTextChangedListener(new TextWatcher()
/*     */     {
/*     */       public void afterTextChanged(Editable s) {
/* 161 */         TextInputLayout.this.mHandler.sendEmptyMessage(0);
/*     */       }
/*     */       
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */       public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
/*     */       
/*     */ 
/*     */ 
/*     */ 
/*     */       public void onTextChanged(CharSequence s, int start, int before, int count) {}
/* 174 */     });
/* 175 */     this.mEditText.setOnFocusChangeListener(new View.OnFocusChangeListener()
/*     */     {
/*     */       public void onFocusChange(View view, boolean focused) {
/* 178 */         TextInputLayout.this.mHandler.sendEmptyMessage(0);
/*     */       }
/*     */     });
/*     */     
/*     */ 
/* 183 */     if (TextUtils.isEmpty(this.mHint)) {
/* 184 */       setHint(this.mEditText.getHint());
/*     */       
/* 186 */       this.mEditText.setHint(null);
/*     */     }
/*     */     
/* 189 */     if (this.mErrorView != null)
/*     */     {
/* 191 */       ViewCompat.setPaddingRelative(this.mErrorView, ViewCompat.getPaddingStart(this.mEditText), 0, ViewCompat.getPaddingEnd(this.mEditText), this.mEditText.getPaddingBottom());
/*     */     }
/*     */     
/*     */ 
/*     */ 
/* 196 */     updateLabelVisibility(false);
/*     */     
/*     */ 
/*     */ 
/* 200 */     LinearLayout.LayoutParams newLp = new LinearLayout.LayoutParams(lp);
/* 201 */     Paint paint = new Paint();
/* 202 */     paint.setTextSize(this.mCollapsingTextHelper.getExpandedTextSize());
/* 203 */     newLp.topMargin = ((int)-paint.ascent());
/*     */     
/* 205 */     return newLp;
/*     */   }
/*     */   
/*     */   private void updateLabelVisibility(boolean animate) {
/* 209 */     boolean hasText = !TextUtils.isEmpty(this.mEditText.getText());
/* 210 */     boolean isFocused = this.mEditText.isFocused();
/*     */     
/* 212 */     this.mCollapsingTextHelper.setCollapsedTextColor(this.mLabelTextColor.getColorForState(isFocused ? FOCUSED_STATE_SET : EMPTY_STATE_SET, this.mLabelTextColor.getDefaultColor()));
/*     */     
/*     */ 
/*     */ 
/* 216 */     if ((hasText) || (isFocused))
/*     */     {
/* 218 */       collapseHint(animate);
/*     */     }
/*     */     else {
/* 221 */       expandHint(animate);
/*     */     }
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */   public EditText getEditText()
/*     */   {
/* 229 */     return this.mEditText;
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */   public void setHint(CharSequence hint)
/*     */   {
/* 236 */     this.mHint = hint;
/* 237 */     this.mCollapsingTextHelper.setText(hint);
/*     */     
/* 239 */     sendAccessibilityEvent(2048);
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public void setErrorEnabled(boolean enabled)
/*     */   {
/* 248 */     if (this.mErrorEnabled != enabled) {
/* 249 */       if (enabled) {
/* 250 */         this.mErrorView = new TextView(getContext());
/* 251 */         this.mErrorView.setTextAppearance(getContext(), this.mErrorTextAppearance);
/* 252 */         this.mErrorView.setVisibility(4);
/* 253 */         addView(this.mErrorView);
/*     */         
/* 255 */         if (this.mEditText != null)
/*     */         {
/* 257 */           ViewCompat.setPaddingRelative(this.mErrorView, ViewCompat.getPaddingStart(this.mEditText), 0, ViewCompat.getPaddingEnd(this.mEditText), this.mEditText.getPaddingBottom());
/*     */         }
/*     */       }
/*     */       else {
/* 261 */         removeView(this.mErrorView);
/* 262 */         this.mErrorView = null;
/*     */       }
/* 264 */       this.mErrorEnabled = enabled;
/*     */     }
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public void setError(CharSequence error)
/*     */   {
/* 278 */     if (!this.mErrorEnabled) {
/* 279 */       if (TextUtils.isEmpty(error))
/*     */       {
/* 281 */         return;
/*     */       }
/*     */       
/* 284 */       setErrorEnabled(true);
/*     */     }
/*     */     
/* 287 */     if (!TextUtils.isEmpty(error)) {
/* 288 */       this.mErrorView.setText(error);
/* 289 */       this.mErrorView.setVisibility(0);
/* 290 */       ViewCompat.setAlpha(this.mErrorView, 0.0F);
/* 291 */       ViewCompat.animate(this.mErrorView).alpha(1.0F).setDuration(200L).setInterpolator(AnimationUtils.FAST_OUT_SLOW_IN_INTERPOLATOR).setListener(null).start();
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */     }
/* 298 */     else if (this.mErrorView.getVisibility() == 0) {
/* 299 */       ViewCompat.animate(this.mErrorView).alpha(0.0F).setDuration(200L).setInterpolator(AnimationUtils.FAST_OUT_SLOW_IN_INTERPOLATOR).setListener(new ViewPropertyAnimatorListenerAdapter()
/*     */       {
/*     */ 
/*     */ 
/*     */         public void onAnimationEnd(View view)
/*     */         {
/*     */ 
/* 306 */           TextInputLayout.this.mErrorView.setText(null);
/* 307 */           TextInputLayout.this.mErrorView.setVisibility(4);
/*     */         }
/*     */       }).start();
/*     */     }
/*     */     
/*     */ 
/* 313 */     sendAccessibilityEvent(2048);
/*     */   }
/*     */   
/*     */   public void draw(Canvas canvas)
/*     */   {
/* 318 */     super.draw(canvas);
/* 319 */     this.mCollapsingTextHelper.draw(canvas);
/*     */   }
/*     */   
/*     */   protected void onLayout(boolean changed, int left, int top, int right, int bottom)
/*     */   {
/* 324 */     super.onLayout(changed, left, top, right, bottom);
/*     */     
/* 326 */     this.mCollapsingTextHelper.onLayout(changed, left, top, right, bottom);
/*     */     
/* 328 */     if (this.mEditText != null) {
/* 329 */       int l = this.mEditText.getLeft() + this.mEditText.getPaddingLeft();
/* 330 */       int r = this.mEditText.getRight() - this.mEditText.getPaddingRight();
/*     */       
/* 332 */       this.mCollapsingTextHelper.setExpandedBounds(l, this.mEditText.getTop() + this.mEditText.getPaddingTop(), r, this.mEditText.getBottom() - this.mEditText.getPaddingBottom());
/*     */       
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/* 338 */       this.mCollapsingTextHelper.setCollapsedBounds(l, getPaddingTop(), r, bottom - top - getPaddingBottom());
/*     */     }
/*     */   }
/*     */   
/*     */   private void collapseHint(boolean animate)
/*     */   {
/* 344 */     if (animate) {
/* 345 */       animateToExpansionFraction(1.0F);
/*     */     } else {
/* 347 */       this.mCollapsingTextHelper.setExpansionFraction(1.0F);
/*     */     }
/*     */   }
/*     */   
/*     */   private void expandHint(boolean animate) {
/* 352 */     if (animate) {
/* 353 */       animateToExpansionFraction(0.0F);
/*     */     } else {
/* 355 */       this.mCollapsingTextHelper.setExpansionFraction(0.0F);
/*     */     }
/*     */   }
/*     */   
/*     */   private void animateToExpansionFraction(float target) {
/* 360 */     if (this.mAnimator == null) {
/* 361 */       this.mAnimator = ViewUtils.createAnimator();
/* 362 */       this.mAnimator.setInterpolator(AnimationUtils.LINEAR_INTERPOLATOR);
/* 363 */       this.mAnimator.setDuration(200);
/* 364 */       this.mAnimator.setUpdateListener(new ValueAnimatorCompat.AnimatorUpdateListener()
/*     */       {
/*     */         public void onAnimationUpdate(ValueAnimatorCompat animator) {
/* 367 */           TextInputLayout.this.mCollapsingTextHelper.setExpansionFraction(animator.getAnimatedFloatValue());
/*     */         }
/*     */       });
/* 370 */     } else if (this.mAnimator.isRunning()) {
/* 371 */       this.mAnimator.cancel();
/*     */     }
/*     */     
/* 374 */     this.mAnimator.setFloatValues(this.mCollapsingTextHelper.getExpansionFraction(), target);
/* 375 */     this.mAnimator.start();
/*     */   }
/*     */   
/*     */   private ColorStateList createLabelTextColorStateList(int color) {
/* 379 */     int[][] states = new int[2][];
/* 380 */     int[] colors = new int[2];
/* 381 */     int i = 0;
/*     */     
/*     */ 
/* 384 */     states[i] = FOCUSED_STATE_SET;
/* 385 */     colors[i] = color;
/* 386 */     i++;
/*     */     
/* 388 */     states[i] = EMPTY_STATE_SET;
/* 389 */     colors[i] = getThemeAttrColor(16842906);
/* 390 */     i++;
/*     */     
/* 392 */     return new ColorStateList(states, colors);
/*     */   }
/*     */   
/*     */   private int getThemeAttrColor(int attr) {
/* 396 */     TypedValue tv = new TypedValue();
/* 397 */     if (getContext().getTheme().resolveAttribute(attr, tv, true)) {
/* 398 */       return tv.data;
/*     */     }
/* 400 */     return -65281;
/*     */   }
/*     */   
/*     */   private class TextInputAccessibilityDelegate extends AccessibilityDelegateCompat {
/*     */     private TextInputAccessibilityDelegate() {}
/*     */     
/*     */     public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
/* 407 */       super.onInitializeAccessibilityEvent(host, event);
/* 408 */       event.setClassName(TextInputLayout.class.getSimpleName());
/*     */     }
/*     */     
/*     */     public void onPopulateAccessibilityEvent(View host, AccessibilityEvent event)
/*     */     {
/* 413 */       super.onPopulateAccessibilityEvent(host, event);
/*     */       
/* 415 */       CharSequence text = TextInputLayout.this.mCollapsingTextHelper.getText();
/* 416 */       if (!TextUtils.isEmpty(text)) {
/* 417 */         event.getText().add(text);
/*     */       }
/*     */     }
/*     */     
/*     */     public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCompat info)
/*     */     {
/* 423 */       super.onInitializeAccessibilityNodeInfo(host, info);
/* 424 */       info.setClassName(TextInputLayout.class.getSimpleName());
/*     */       
/* 426 */       CharSequence text = TextInputLayout.this.mCollapsingTextHelper.getText();
/* 427 */       if (!TextUtils.isEmpty(text)) {
/* 428 */         info.setText(text);
/*     */       }
/* 430 */       if (TextInputLayout.this.mEditText != null) {
/* 431 */         info.setLabelFor(TextInputLayout.this.mEditText);
/*     */       }
/* 433 */       CharSequence error = TextInputLayout.this.mErrorView != null ? TextInputLayout.this.mErrorView.getText() : null;
/* 434 */       if (!TextUtils.isEmpty(error)) {
/* 435 */         info.setContentInvalid(true);
/* 436 */         info.setError(error);
/*     */       }
/*     */     }
/*     */   }
/*     */ }

/* Location:           /Applications/Android/sdk/extras/android/support/design/libs/android-support-design.jar
 * Qualified Name:     android.support.design.widget.TextInputLayout
 * Java Class Version: 7 (51.0)
 * JD-Core Version:    0.7.0.1
 */