使android-textview的某個部分與右邊對齊

Question

我有這個TextView。它的某些部分應該被對齊到左邊和右邊的一些部分。我將如何在Java中執行此操作？

基本上，我想要第一行對齊到左側，下一行到右側等。

任何人都有線索？

編輯

我曾嘗試使用HTML，然後當沒有工作，我試圖跨越。

HTML嘗試

textView.setText(Html.fromHtml("<p align=\"right\">THIS IS TO THE RIGHT</p>")); 

而且繼承人的跨度嘗試

String LeftText = "LEFT"; 
    String RightText = "RIGHT"; 

    final String resultText = LeftText + " " + RightText; 
    final SpannableString styledResultText = new SpannableString(resultText); 
    styledResultText.setSpan(new AlignmentSpan.Standard(Alignment.ALIGN_OPPOSITE), LeftText.length() + 1, LeftText.length() + 2 +RightText.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
    textView.setText(styledResultText); 

但他們都不似乎工作。

Answer 1

TextView resultTextView=new TextView(this); 
final String resultText = LeftText + " " + RightText; 
final SpannableString styledResultText = new SpannableString(resultText); 
styledResultText.setSpan((new AlignmentSpan.Standard(Alignment.ALIGN_OPPOSITE), LeftText.length() + 2, LeftText.length() + 2 +RightText.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
resultTextView.setText(styledResultText); 

Alignment.ALIGN_OPPOSITE is the equivalent for right side.

Alignment.ALIGN_NORMAL is the equivalent for left side.

Answer 2

兩種溶液：

1）具有用於每行不同的文本視圖，並設置其嚴重性。

2）使用HTML，而加載數據設置對齊在HTML它 REF:how-to-display-html-in-textview 這將無法正常工作align is not a supported tags 編輯：

而且

3：使用起來會跨度。

Answer 3

Simple.Adjust在textview中的XML部分。使用佈局。如果你想要textview在左邊

android：alignParentLeft =「true」更多對齊細節看這個。

http://developer.android.com/reference/android/widget/RelativeLayout.LayoutParams.html

而這也是不同的佈局的例子。

http://www.androidhive.info/2011/07/android-layouts-linear-layout-relative-layout-and-table-layout/

Answer 4

這裏是與Spannable工作，與cavate，如果左，右太寬，他們將在同一重疊的解決方案線。由於使用spannable進行左/右技巧需要在左和右之間換行，因此我的修復是添加一個spannable，將一行換行的行高降爲零（即重疊行），然後恢復正常行高那。

String fullText = leftText + "\n " + rightText;  // only works if linefeed between them! "\n "; 

    int fullTextLength = fullText.length(); 
    int leftEnd = leftText.length(); 
    int rightTextLength = rightText.length(); 

    final SpannableString s = new SpannableString(fullText); 
    AlignmentSpan alignmentSpan = new AlignmentSpan.Standard(Layout.Alignment.ALIGN_OPPOSITE); 
    s.setSpan(alignmentSpan, leftEnd, fullTextLength, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
    s.setSpan(new SetLineOverlap(true), 1, fullTextLength-2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
    s.setSpan(new SetLineOverlap(false), fullTextLength-1, fullTextLength, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 

，我們有小程序來處理重疊線：

private static class SetLineOverlap implements LineHeightSpan { 
    private int originalBottom = 15;  // init value ignored 
    private int originalDescent = 13;  // init value ignored 
    private Boolean overlap;    // saved state 
    private Boolean overlapSaved = false; // ensure saved values only happen once 

    SetLineOverlap(Boolean overlap) { 
     this.overlap = overlap; 
    } 

    @Override 
    public void chooseHeight(CharSequence text, int start, int end, int spanstartv, int v, 
          Paint.FontMetricsInt fm) { 
     if (overlap) { 
      if (!overlapSaved) { 
       originalBottom = fm.bottom; 
       originalDescent = fm.descent; 
       overlapSaved = true; 
      } 
      fm.bottom += fm.top; 
      fm.descent += fm.top; 
     } else { 
      // restore saved values 
      fm.bottom = originalBottom; 
      fm.descent = originalDescent; 
      overlapSaved = false; 
     } 
    } 
} 

Answer 5

謝謝你的提示，@Frank，但這只是不夠：

public class LineOverlapSpan implements LineHeightSpan { 
    @Override 
    public void chooseHeight(final CharSequence text, final int start, final int end, final int spanstartv, final int v, final Paint.FontMetricsInt fm) { 
     fm.bottom += fm.top; 
     fm.descent += fm.top; 
    } 
} 

像這樣來使用：

CharSequence text = return new Truss() 
     .append("LEFT") 
     .pushSpan(LineOverlapSpan()) 
     .append("\n") 
     .popSpan() 
     .pushSpan(AlignmentSpan.Standard(Layout.Alignment.ALIGN_OPPOSITE)) 
     .append("RIGHT") 
     .build() 

其中Truss是

A SpannableStringBuilder包裝的API沒有讓我想刺我的眼睛。

• 傑克沃頓，https://gist.github.com/JakeWharton/11274467