如何在Android中使用TextView顯示圓形文本

Question

我想在我的android應用程序中顯示具有圓形形狀的文本。我知道這是用custome textview完成的，但可以讓一些好友給我正確的代碼。我也附加了圖像的類型看我想要。

Answer 1

你不需要進行自定義視圖。 找到正確TypeFace，把你的項目，並設置爲您TextView

或者使用Microsoft Office Word藝術和圖像複製到項目

Answer 2

創建自定義視圖和重寫的onDraw。在onDraw中，創建一個路徑並使用drawTextOnPath。像這樣的東西。 textToDraw是你想要顯示的文本。油漆是你想要的任何油漆。

@Override onDraw(Canvas canvas){ 
    Path path = new Path(); 
    path.addCircle(x, y, 200, Path.Direction.CW); 
    canvas.drawTextOnPath(textToDraw, path, textX, textY, paint); 
} 

http://developer.android.com/training/custom-views/index.html http://developer.android.com/reference/android/graphics/Canvas.html#drawTextOnPath(java.lang.String, android.graphics.Path, float, float, android.graphics.Paint)

Answer 3

你必須使用自定義視圖就像在你的onDraw方法實現：

Path path = new Path(); 
path.addCircle(x, y, radius, Path.Direction.CW); 
myCanvas.drawTextOnPath(myText, path, offset, 0, myPaint); 

Answer 4

試試下面的代碼..

onDraw(Canvas canvas){ 
Path path = new Path(); 
path.addArc(oval, startAngle, sweepAngle) 
path.addArc(oval, 0, 180) 
} 

這可能工作...

Answer 5

你必須創建自己的對象的「查看」像這樣

public class YourView extends View { 
    private static final String YOUR_TEXT = "something cool"; 
    private Path _arc; 

    private Paint _paintText; 

    public YourView(Context context) { 
     super(context); 

     _arc = new Path(); 
     RectF oval = new RectF(50,100,200,250);; 
     _arc.addArc(oval, -180, 200); 
     _paintText = new Paint(Paint.ANTI_ALIAS_FLAG); 
     _paintText.setStyle(Paint.Style.FILL_AND_STROKE); 
     _paintText.setColor(Color.WHITE); 
     _paintText.setTextSize(20f); 

    } 

    @Override 
    protected void onDraw(Canvas canvas) { 
     canvas.drawTextOnPath(YOUR_TEXT, _arc, 0, 20, _paintText); 
     invalidate(); 
    } 
} 

，然後用它作爲你的TextView :)希望這有助於

Answer 6

你可以看看與捆綁的APIDemo源代碼SDK中的android SDK目錄。

的例子「圖形/文本對齊」（文件TextAlign.java）展示瞭如何沿着路徑顯示文本：

然後，您可以調整它來建立你的屏幕。

Answer 7

你可以試試這個測試和充分的工作代碼：

public class MainActivity extends Activity { 
     @Override 
    public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
     setContentView(new GraphicsView(this));} 

    static public class GraphicsView extends View { 
    private static final String QUOTE = "This is a curved text"; 
    private Path circle; 
    private Paint cPaint; 
    private Paint tPaint; 

public GraphicsView(Context context) { 
    super(context); 

    int color = Color.argb(127, 255, 0, 255); 

    circle = new Path(); 
    circle.addCircle(230, 350, 150, Direction.CW); 

    cPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 
    cPaint.setStyle(Paint.Style.STROKE); 
    cPaint.setColor(Color.LTGRAY); 
    cPaint.setStrokeWidth(3); 

    setBackgroundResource(R.drawable.heart); 

    tPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 
    tPaint.setStyle(Paint.Style.FILL_AND_STROKE); 
    tPaint.setColor(Color.BLACK); 
    tPaint.setTextSize(50);} 


    @Override 
    protected void onDraw(Canvas canvas) { 
    canvas.drawTextOnPath(QUOTE, circle, 485, 20, tPaint);} 
             } } 

輸出將是：

希望這有助於。