文本在TextView中從底部切割

Question

我爲list.i創建了一個行佈局，使用了自定義textview來調整文本大小。 但文字在高亮區域顯示的底部切割。 任何人都可以知道它爲什麼會發生。請給我提供一些解決方案。

public class AutoFitTextView extends TextView 
{ 
private static final float THRESHOLD = 0.5f 
private enum Mode { Width, Height, Both, None } 

private int minTextSize = 1; 
private int maxTextSize = 16; 

private Mode mode = Mode.None; 
private boolean inComputation; 
private int widthMeasureSpec; 
private int heightMeasureSpec; 

public AutoFitTextView(Context context) { 
    super(context); 
} 

public AutoFitTextView(Context context, AttributeSet attrs) { 
    this(context, attrs, 0); 
} 

public AutoFitTextView(Context context, AttributeSet attrs, int defStyle) { 
    super(context, attrs, defStyle); 

    TypedArray tAttrs = context.obtainStyledAttributes(
      attrs, R.styleable.com_techdeals_ui_widget_AutoFitTextView, defStyle, 0); 
    maxTextSize = tAttrs.getDimensionPixelSize(
      R.styleable.com_techdeals_ui_widget_AutoFitTextView_maxTextSize, maxTextSize); 
    minTextSize = tAttrs.getDimensionPixelSize(
      R.styleable.com_techdeals_ui_widget_AutoFitTextView_minTextSize, minTextSize); 
    tAttrs.recycle(); 
} 

private void resizeText() { 
    if (getWidth() <= 0 || getHeight() <= 0) 
     return; 

    if(mode == Mode.None) 
     return; 

    final int targetWidth = getWidth(); 
    final int targetHeight = getHeight(); 

    inComputation = true; 
    float higherSize = maxTextSize; 
    float lowerSize = minTextSize; 
    float textSize = getTextSize(); 
    while(higherSize - lowerSize > THRESHOLD) { 
     textSize = (higherSize + lowerSize)/2; 
     if (isTooBig(textSize, targetWidth, targetHeight)) { 
      higherSize = textSize; 
     } else { 
      lowerSize = textSize; 
     } 
    } 
    setTextSize(TypedValue.COMPLEX_UNIT_PX, lowerSize); 
    measure(widthMeasureSpec, heightMeasureSpec); 
    inComputation = false; 
} 

private boolean isTooBig(float textSize, int targetWidth, int targetHeight) { 
    setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize); 
    measure(0, 0); 
    if(mode == Mode.Both) 
     return getMeasuredWidth() >= targetWidth || getMeasuredHeight() >= targetHeight; 
    if(mode == Mode.Width) 
     return getMeasuredWidth() >= targetWidth; 
    else 
     return getMeasuredHeight() >= targetHeight; 
} 

private Mode getMode(int widthMeasureSpec, int heightMeasureSpec) { 
    int widthMode = MeasureSpec.getMode(widthMeasureSpec); 
    int heightMode = MeasureSpec.getMode(heightMeasureSpec); 
    if(widthMode == MeasureSpec.EXACTLY && heightMode == MeasureSpec.EXACTLY) 
     return Mode.Both; 
    if(widthMode == MeasureSpec.EXACTLY) 
     return Mode.Width; 
    if(heightMode == MeasureSpec.EXACTLY) 
     return Mode.Height; 
    return Mode.None; 
} 

@Override 
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 
    super.onMeasure(widthMeasureSpec, heightMeasureSpec); 
    if(!inComputation) { 
     this.widthMeasureSpec = widthMeasureSpec; 
     this.heightMeasureSpec = heightMeasureSpec; 
     mode = getMode(widthMeasureSpec, heightMeasureSpec); 
     resizeText(); 
    } 
} 

@Override 
protected int getSuggestedMinimumWidth() { 
    Drawable background = getBackground(); 
    setBackground(null); 
    int minWidth = super.getSuggestedMinimumWidth(); 
    setBackground(background); 
    return minWidth; 
} 

@Override 
protected int getSuggestedMinimumHeight() { 
    Drawable background = getBackground(); 
    setBackground(null); 
    int minHeight = super.getSuggestedMinimumHeight(); 
    setBackground(background); 
    return minHeight; 
} 

public void setBackground(Drawable background) { 
    /*if(Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) 
     super.setBackground(background); 
    else*/ 
     setBackgroundDrawable(background); 
} 

@Override 
protected void onTextChanged(final CharSequence text, final int start, final int before, final int after) { 
    resizeText(); 
} 

@Override 
protected void onSizeChanged(int w, int h, int oldw, int oldh) { 
    if (w != oldw || h != oldh) 
     resizeText(); 
} 

public int getMinTextSize() { 
    return minTextSize; 
} 

public void setMinTextSize(int minTextSize) { 
    this.minTextSize = minTextSize; 
    resizeText(); 
} 

public int getMaxTextSize() { 
    return maxTextSize; 
} 

public void setMaxTextSize(int maxTextSize) { 
    this.maxTextSize = maxTextSize; 
    resizeText(); 
} 

}

在此先感謝。

Answer 1

這裏是xml文件

<?xml version="1.0" encoding="utf-8"?> 
<!-- Copyright TechDeals 2012. All rights reserved. --> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/apk/res/com.techdeals" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:background="@color/text_color_white" 
android:padding="@dimen/padding_small_shopping_alert" 
android:descendantFocusability="blocksDescendants" > 

<ImageView 
    android:id="@+id/imageView_logo" 
    android:layout_width="@dimen/image_width_logo" 
    android:layout_height="@dimen/image_height_logo" 
    android:layout_centerVertical="true" 
    android:layout_gravity="center" 
    android:layout_margin="@dimen/margin_small_shopping_alert" 
    android:layout_marginRight="@dimen/imageview_row_arrow_margin_right" > 
</ImageView> 

<com.techdeals.rest.ui.widget.CustomTextView 
    android:id="@+id/textview_alert_title" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_marginLeft="@dimen/textview_address_margin_left" 
    android:layout_marginRight="@dimen/margin_small_shopping_alert" 
    android:layout_toLeftOf="@+id/relative_layout_ImageViewandCheckBox" 
    android:layout_toRightOf="@+id/imageView_logo" 
    android:ellipsize="end" 
    android:lines="1" 
    android:maxLines="1" 
    android:scrollHorizontally="true" 
    android:textColor="@color/color_dark_teal" 
    android:textSize="@dimen/text_size_medium" 
    android:textStyle="bold" 
    app:font="DroidSans-Bold.ttf" /> 

<com.techdeals.rest.ui.widget.CustomTextView 
    android:id="@+id/textview_alert_type" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignLeft="@+id/textview_alert_title" 
    android:layout_below="@+id/textview_alert_title" 
    android:layout_marginTop="@dimen/margin_small_shopping_alert" 
    android:layout_toLeftOf="@+id/relative_layout_ImageViewandCheckBox" 
    android:layout_toRightOf="@+id/imageView_logo" 
    android:ellipsize="end" 
    android:lines="1" 
    android:maxLines="1" 
    android:textColor="@color/color_light_green" 
    android:textSize="@dimen/text_size_small" 
    app:font="DroidSans.ttf" /> 

<com.techdeals.rest.ui.widget.CustomTextView 
    android:id="@+id/textview_alert_method" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignLeft="@+id/textview_alert_title" 
    android:layout_below="@+id/textview_alert_type" 
    android:layout_marginTop="@dimen/margin_small_shopping_alert" 
    android:ellipsize="end" 
    android:lines="1" 
    android:maxLines="1" 
    android:textColor="@color/color_light_brown" 
    android:textSize="@dimen/text_size_small" 
    app:font="DroidSans.ttf" /> 

<com.techdeals.rest.ui.widget.AutoFitTextView 
    android:id="@+id/textview_alert_message" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/textview_alert_type" 
    android:layout_marginLeft="@dimen/margin_medium_shopping_alert" 
    android:layout_toLeftOf="@+id/relative_layout_ImageViewandCheckBox" 
    android:layout_toRightOf="@+id/textview_alert_method" 
    android:lines="1" 
    android:maxLines="1" 
    android:textColor="@color/text_color_black" 
    android:textSize="@dimen/text_size_small" 
    app:font="DroidSans.ttf" 
    android:padding="5dp" 
    android:layout_alignBaseline="@+id/textview_alert_method" /> 

<RelativeLayout 
    android:id="@+id/relative_layout_ImageViewandCheckBox" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentRight="true" 
    android:layout_centerVertical="true" 
    android:layout_gravity="center" 
    > 

    <ImageView 
     android:id="@+id/imageView_row_arrow" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_centerVertical="true" 
     android:background="@drawable/row_arrow" > 
    </ImageView> 

    <CheckBox 
     android:id="@+id/checkBox_row_delete" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:focusable="false" 
     android:visibility="gone" 
     android:layout_centerVertical="true" 
     android:focusableInTouchMode="false"/> 
</RelativeLayout>