Edittext字体未显示

时间:2014-06-24 12:45:29

标签: android android-edittext custom-controls android-typeface

我正在经历一个奇怪的问题。

我创建了 CustomEdittext类,用于为整个应用程序设置Typeface,几乎在所有情况下都能成功运行。

我正在使用circo.ttf

问题在于,当我设置 android:inputType="textPassword" 时,文字在输入后停止显示,可能是因为字体没有密码符号或者可能存在其他问题。

以下是我的问题的一个例子:

enter image description here

CustomEdittext.java

public class CustomEdittext extends EditText {

    public CustomEdittext(Context context) {
        super(context);
        changeFonts(context);

    }
    public CustomEdittext(Context context, AttributeSet attrs) {
        super(context, attrs);
        changeFonts(context);
    }

    public CustomEdittext(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        changeFonts(context);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        // TODO Auto-generated method stub
        super.onDraw(canvas);
    }

    private void changeFonts(Context context) {
        // TODO Auto-generated method stub
        Typeface tface = Typeface.createFromAsset(context.getAssets(),"fonts/circo.ttf");
        this.setTypeface(tface);
        this.setTextColor(Color.parseColor("#921c50"));
        Log.i("Input Type", "Type : "+this.getInputType());
    }
}

login_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="20dp"
    android:orientation="vertical" 
    android:gravity="center_vertical">

    <com.equest.cwely.customviews.CustomTextview
        android:id="@+id/textView1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="LOGIN"
        android:textColor="@color/border_pink"
        android:textStyle="bold"
        android:gravity="center"
        android:padding="10dp"
        android:layout_marginTop="20dp"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <com.equest.cwely.customviews.CustomEdittext
        android:id="@+id/edt_username"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Username"
        android:singleLine="true"
        android:background="@drawable/edittext_bg"
        android:layout_marginTop="10dp"
        android:ems="10" >

        <requestFocus />
    </com.equest.cwely.customviews.CustomEdittext>

    // this is password field
    <com.equest.cwely.customviews.CustomEdittext
        android:id="@+id/edt_password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="Password"
        android:background="@drawable/edittext_bg"
        android:singleLine="true"
        android:layout_marginTop="10dp"
        android:inputType="textPassword" />

    <LinearLayout 
        android:layout_height="wrap_content"
        android:layout_width="fill_parent"
        android:layout_marginTop="10dp"
        android:padding="10dp"
        android:orientation="vertical">

    <Button
        android:id="@+id/btn_login"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:textColor="@color/border_pink"
        android:layout_margin="5dp"
        android:background="@drawable/button_bg"
        android:text="Login" />

    <Button
        android:id="@+id/btn_signup"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:layout_margin="5dp"
        android:textColor="@color/border_pink"
        android:background="@drawable/button_bg"
        android:text="Sign Up" />    
    </LinearLayout>

</LinearLayout>

LoginActivity.java

public class LoginActivity extends Activity {

    Button btn_login,btn_signup;
    EditText edt_username,edt_password;
    String result = "";
    String username = "",password = "";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login_main);

        edt_username = (EditText)findViewById(R.id.edt_username);
        edt_password = (EditText)findViewById(R.id.edt_password);
        edt_password.setTransformationMethod(new PasswordTransformationMethod());
        btn_login = (Button)findViewById(R.id.btn_login);

        btn_login.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                username = edt_username.getText().toString();
                password = edt_password.getText().toString();
                //new doLogin().execute();
            }
        });

        btn_signup = (Button)findViewById(R.id.btn_signup);
        btn_signup.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getApplicationContext(), RegisterActivity.class);
                startActivity(intent);
            }
        });

    }

}

1 个答案:

答案 0 :(得分:8)

您所包含的字体似乎不包含默认用于密码转换的符号的字符。您有两种选择:

  1. 使用其他字体

  2. 将掩码字符更改为字体包含的内容。

  3. 因为我推测你不是一个放弃者,所以这里有一些代码可以将掩码字符从点()更改为星号(*)。

    首先,您必须使自己的PasswordTransformationMethod覆盖默认值:

    public class AsteriskPasswordTransformationMethod extends PasswordTransformationMethod {
        @Override
        public CharSequence getTransformation(CharSequence source, View view) {
            return new PasswordCharSequence(source);
        }
    
        private class PasswordCharSequence implements CharSequence {
            private CharSequence mSource;
            public PasswordCharSequence(CharSequence source) {
                mSource = source; // Store char sequence
            }
            public char charAt(int index) {
                // This is where we make it an asterisk.  If you wish to use 
                // something else then change what this returns
                return '*'; 
            }
            public int length() {
                return mSource.length(); // Return default
            }
            public CharSequence subSequence(int start, int end) {
                return mSource.subSequence(start, end); // Return default
            }
        }
    };
    

    最后,将新的转换方法设置为您想要屏蔽的EditText

    edt_password = (EditText)findViewById(R.id.edt_password);
    edt_password.setTransformationMethod(new AsteriskPasswordTransformationMethod());
    

    我使用了来自this question的信息。