Question

我的问题是，当我点击按钮时，我的文字应该是粗体，如果我再次按下那个按钮，那么文本应该从那里取消。我正在使用这个给定的代码，当我点击按钮然后在这个代码的帮助下然后文本是粗体，但是当我再次按下按钮时，文本不会从那里解开....

boldButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) 
            {
                if(boldBoolean==false)
                {
                    startTemp = edtTouch.getSelectionStart();
                    endTemp = edtTouch.getSelectionStart();
                    temp=edtTouch.getText().toString();
                    Spannable span=edtTouch.getText();
                    StyleSpan boldText=new StyleSpan(Typeface.BOLD);
                    span.setSpan(boldText, startTemp, startTemp, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
                    span.setSpan(boldText, startTemp, startTemp, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
                    boldButton.setBackgroundResource(R.drawable.bold_bracket);
                    boldBoolean=true;

                }
                else
                {

                /*  Spannable span=edtTouch.getText();
                    StyleSpan boldText=new StyleSpan(Typeface.DEFAULT.getStyle());
                    span.setSpan(boldText, startTemp, startTemp,     Spanned.SPAN_INCLUSIVE_INCLUSIVE);
                    boldButton.setBackgroundResource(R.drawable.bold);
                    boldBoolean=false;*/


                }

            }
        });

如果有人知道，请帮助我......

提前感谢...

Answer 1

finally i got solution myself by using droidwriter.jar , you can download it from http://code.google.com/p/droid-writer/downloads/detail?name=droidwriter-0.8.jar&can=2&q=
after that i am sharing my code here
XML file:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:orientation="vertical"
    android:layout_height="match_parent"
   >


    <ToggleButton android:layout_height="wrap_content"
        android:id="@+id/bold"
         android:textOff="B"
                android:textOn="B"

        android:layout_width="wrap_content"
     />

     <ToggleButton android:layout_height="wrap_content"
         android:id="@+id/italic"
         android:textOff="I"
                android:textOn="I"
        android:layout_width="wrap_content"
        />

    <hu.scythe.droidwriter.DroidWriterEditText
            android:id="@+id/DwEdit"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="top"
            android:inputType="textVisiblePassword|textCapSentences"
            android:minLines="10" />


</LinearLayout>

/ *和我的java代码* /

package com.example.editordemo;

import hu.scythe.droidwriter.DroidWriterEditText;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.ToggleButton;

public class MainActivity extends Activity {

    ToggleButton bold,italic;
    DroidWriterEditText edt;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        bold=(ToggleButton) findViewById(R.id.bold);
        italic=(ToggleButton) findViewById(R.id.italic);
        edt=(DroidWriterEditText) findViewById(R.id.DwEdit);
        edt.setBoldToggleButton(bold);
        edt.setItalicsToggleButton(italic);

    }
}

Answer 2

您好我已经完成了您的解决方案，请尝试此代码

public class MainActivity extends ActionBarActivity implements OnClickListener {
    short clickedTime=0;
    TextView tv;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tv = (TextView) findViewById(R.id.text);
        findViewById(R.id.button).setOnClickListener(MainActivity.this);
    }


    private void akash()
    {
        if(clickedTime==0)
        {
        SpannableString text = new SpannableString(tv.getText().toString());

        text.setSpan(new StyleSpan(Typeface.BOLD),tv.getSelectionStart(),tv.getSelectionEnd(),0);

        tv.setText(text, TextView.BufferType.SPANNABLE);

        clickedTime=1;

        }
        else
        {
            SpannableString text = new SpannableString(tv.getText().toString());

            text.setSpan(new StyleSpan(Typeface.NORMAL),tv.getSelectionStart(),tv.getSelectionEnd(),0);

            tv.setText(text, TextView.BufferType.SPANNABLE);

            clickedTime=0;
        }
    }


    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        akash();
    }

}

当我点击按钮时，tyface.default.getstyle（）无效

2 个答案: