android 設置字體顏色、EditText自動輸入轉換成大寫字母的多種方式

當輸入小寫字母時，EditText編輯框自動轉換成大寫字母，也有多種方式，即給某個EditText設置監聽、調用EditText對象的setTransformationMethod()方法。

（一）為EditText設置監聽

mEdtLicensePlateNumber.addTextChangedListener(new TextWatcher() {

			@Override
			public void onTextChanged(CharSequence s, int start, int before, int count) {
				// TODO Auto-generated method stub
				mEdtLicensePlateNumber.removeTextChangedListener(this);//解除文字改變事件
				mEdtLicensePlateNumber.setText(s.toString().toUpperCase());//轉換
				mEdtLicensePlateNumber.setSelection(s.toString().length());//重新設置光標位置
				mEdtLicensePlateNumber.addTextChangedListener(this);//重新綁
				licensePlateNumber = mEdtLicensePlateNumber.getText().toString().trim();
			}

			@Override
			public void beforeTextChanged(CharSequence s, int start, int count,
					int after) {
				// TODO Auto-generated method stub

			}

			@Override
			public void afterTextChanged(Editable s) {
				// TODO Auto-generated method stub

			}
		});

public class InputLowerToUpper extends ReplacementTransformationMethod{
	@Override
	protected char[] getOriginal() {
		char[] lower = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z' };
		return lower;
	}

	@Override
	protected char[] getReplacement() {
		char[] upper = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
		return upper;
	}

}

editext.setTransformationMethod(new InputLowerToUpper());