自定义TextView,解决布局乱的问题

public class NsTextView extends TextView {

private String text;

private float textSize;

private float paddingLeft;

private float paddingRight;

private int textColor;

private Paint paint1 = new Paint();

private float textShowWidth;

public NsTextView(Context context, AttributeSet attrs) {

super(context, attrs);

text = this.getText().toString();

textSize = this.getTextSize();

textColor = this.getTextColors().getDefaultColor();

paddingLeft = this.getPaddingLeft();

paddingRight = this.getPaddingRight();

paint1.setTextSize(textSize);

paint1.setColor(textColor);

paint1.setAntiAlias(true);

}

@Override

protected void onDraw(Canvas canvas) {

textShowWidth = this.getMeasuredWidth() - paddingLeft - paddingRight;

int lineCount = 0;

text = this.getText().toString();

if (text == null)

return;

char[] textCharArray = text.toCharArray();

float drawedWidth = 0;

float charWidth;

for (int i = 0; i < textCharArray.length; i++) {

charWidth = paint1.measureText(textCharArray, i, 1);

if (textCharArray[i] == '\n') {

lineCount++;

drawedWidth = 0;

continue;

}

if (textShowWidth - drawedWidth < charWidth) {

lineCount++;

drawedWidth = 0;

}

canvas.drawText(textCharArray, i, 1, paddingLeft + drawedWidth,

(lineCount + 1) * (textSize + 5), paint1);

drawedWidth += charWidth;

}

setHeight((int) ((lineCount + 1) * (int) (textSize + 5)) + 5);

}

}