Simplay我们可以使用android: justify mode ="inter_word"

 <TextView
 android:justificationMode="inter_word"
 android:id="@+id/messageTv"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_margin="@dimen/text_margin"
 android:paddingTop="15sp"
 android:textAppearance="@style/TextAppearance.Material3.TitleMedium" />

我写了自己的类来解决这个问题，这里 你只需要调用带有两个参数的static justify函数

文本视图对象 内容宽度(文本视图的总宽度)

/ / MainActivity

package com.fawad.textjustification;
import android.app.Activity;
import android.database.Cursor;
import android.graphics.Point;
import android.graphics.Typeface;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.Display;
import android.view.Gravity;
import android.view.Menu;
import android.widget.TextView;

public class MainActivity extends Activity {
    static Point size;
    static float density;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Display display = getWindowManager().getDefaultDisplay();
        size=new Point();
        DisplayMetrics dm=new DisplayMetrics();
        display.getMetrics(dm);
        density=dm.density;
        display.getSize(size);


        TextView tv=(TextView)findViewById(R.id.textView1);
        Typeface typeface=Typeface.createFromAsset(this.getAssets(), "Roboto-Medium.ttf");
        tv.setTypeface(typeface);
        tv.setLineSpacing(0f, 1.2f);
        tv.setTextSize(10*MainActivity.density);

        //some random long text
         String myText=getResources().getString(R.string.my_text);

         tv.setText(myText);
        TextJustification.justify(tv,size.x);


    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

文本对齐类

package com.fawad.textjustification;

import java.util.ArrayList;

import android.graphics.Paint;
import android.text.TextUtils;
import android.widget.TextView;

public class TextJustification {

    public static void justify(TextView textView,float contentWidth) {
        String text=textView.getText().toString();
        Paint paint=textView.getPaint();

        ArrayList<String> lineList=lineBreak(text,paint,contentWidth);

        textView.setText(TextUtils.join(" ", lineList).replaceFirst("\\s", ""));
    }


    private static ArrayList<String> lineBreak(String text,Paint paint,float contentWidth){
        String [] wordArray=text.split("\\s"); 
        ArrayList<String> lineList = new ArrayList<String>();
        String myText="";

        for(String word:wordArray){
            if(paint.measureText(myText+" "+word)<=contentWidth)
                myText=myText+" "+word;
            else{
                int totalSpacesToInsert=(int)((contentWidth-paint.measureText(myText))/paint.measureText(" "));
                lineList.add(justifyLine(myText,totalSpacesToInsert));
                myText=word;
            }
        }
        lineList.add(myText);
        return lineList;
    }

    private static String justifyLine(String text,int totalSpacesToInsert){
        String[] wordArray=text.split("\\s");
        String toAppend=" ";

        while((totalSpacesToInsert)>=(wordArray.length-1)){
            toAppend=toAppend+" ";
            totalSpacesToInsert=totalSpacesToInsert-(wordArray.length-1);
        }
        int i=0;
        String justifiedText="";
        for(String word:wordArray){
            if(i<totalSpacesToInsert)
                justifiedText=justifiedText+word+" "+toAppend;

            else                
                justifiedText=justifiedText+word+toAppend;

            i++;
        }

        return justifiedText;
    }

}

/ / XML

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    tools:context=".MainActivity" 
    >



    <ScrollView
        android:id="@+id/scrollView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
         >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"

             >
            <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />
        </LinearLayout>
    </ScrollView>

</RelativeLayout>

有一个自定义视图来解决这个问题，这个自定义文本视图支持有理文本视图。

战利品在这:justfiedtextview

import java.util.ArrayList;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.text.TextPaint;
import android.view.View;

public class JustifiedTextView extends View {
        String text;
        ArrayList<Line> linesCollection = new ArrayList<Line>();
        TextPaint textPaint;
        Typeface font;
        int textColor;
        float textSize = 42f, lineHeight = 57f, wordSpacing = 15f, lineSpacing = 15f;
        float onBirim, w, h;
        float leftPadding, rightPadding;

        public JustifiedTextView(Context context, String text) {
                super(context);
                this.text = text;
                init();
        }

        private void init() {
                textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
                textColor = Color.BLACK;
        }

        @Override
        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
                super.onMeasure(widthMeasureSpec, heightMeasureSpec);

                if (font != null) {
                        font = Typeface.createFromAsset(getContext().getAssets(), "font/Trykker-Regular.ttf");
                        textPaint.setTypeface(font);
                }
                textPaint.setColor(textColor);

                int minw = getPaddingLeft() + getPaddingRight() + getSuggestedMinimumWidth();
                w = resolveSizeAndState(minw, widthMeasureSpec, 1);
                h = MeasureSpec.getSize(widthMeasureSpec);

                onBirim = 0.009259259f * w;
                lineHeight = textSize + lineSpacing;
                leftPadding = 3 * onBirim + getPaddingLeft();
                rightPadding = 3 * onBirim + getPaddingRight();

                textPaint.setTextSize(textSize);

                wordSpacing = 15f;
                Line lineBuffer = new Line();
                this.linesCollection.clear();
                String[] lines = text.split("\n");
                for (String line : lines) {
                        String[] words = line.split(" ");
                        lineBuffer = new Line();
                        float lineWidth = leftPadding + rightPadding;
                        float totalWordWidth = 0;
                        for (String word : words) {
                                float ww = textPaint.measureText(word) + wordSpacing;
                                if (lineWidth + ww + (lineBuffer.getWords().size() * wordSpacing) > w) {// is
                                        lineBuffer.addWord(word);
                                        totalWordWidth += textPaint.measureText(word);
                                        lineBuffer.setSpacing((w - totalWordWidth - leftPadding - rightPadding) / (lineBuffer.getWords().size() - 1));
                                        this.linesCollection.add(lineBuffer);
                                        lineBuffer = new Line();
                                        totalWordWidth = 0;
                                        lineWidth = leftPadding + rightPadding;
                                } else {
                                        lineBuffer.setSpacing(wordSpacing);
                                        lineBuffer.addWord(word);
                                        totalWordWidth += textPaint.measureText(word);
                                        lineWidth += ww;
                                }
                        }
                        this.linesCollection.add(lineBuffer);
                }
                setMeasuredDimension((int) w, (int) ((this.linesCollection.size() + 1) * lineHeight + (10 * onBirim)));
        }

        @Override
        protected void onDraw(Canvas canvas) {
                super.onDraw(canvas);
                canvas.drawLine(0f, 10f, getMeasuredWidth(), 10f, textPaint);
                float x, y = lineHeight + onBirim;
                for (Line line : linesCollection) {
                        x = leftPadding;
                        for (String s : line.getWords()) {
                                canvas.drawText(s, x, y, textPaint);
                                x += textPaint.measureText(s) + line.spacing;
                        }
                        y += lineHeight;
                }
        }

        public String getText() {
                return text;
        }

        public void setText(String text) {
                this.text = text;
        }

        public Typeface getFont() {
                return font;
        }

        public void setFont(Typeface font) {
                this.font = font;
        }

        public float getLineHeight() {
                return lineHeight;
        }

        public void setLineHeight(float lineHeight) {
                this.lineHeight = lineHeight;
        }

        public float getLeftPadding() {
                return leftPadding;
        }

        public void setLeftPadding(float leftPadding) {
                this.leftPadding = leftPadding;
        }

        public float getRightPadding() {
                return rightPadding;
        }

        public void setRightPadding(float rightPadding) {
                this.rightPadding = rightPadding;
        }

        public void setWordSpacing(float wordSpacing) {
                this.wordSpacing = wordSpacing;
        }

        public float getWordSpacing() {
                return wordSpacing;
        }

        public float getLineSpacing() {
                return lineSpacing;
        }

        public void setLineSpacing(float lineSpacing) {
                this.lineSpacing = lineSpacing;
        }

        class Line {
                ArrayList<String> words = new ArrayList<String>();
                float spacing = 15f;

                public Line() {
                }

                public Line(ArrayList<String> words, float spacing) {
                        this.words = words;
                        this.spacing = spacing;
                }

                public void setSpacing(float spacing) {
                        this.spacing = spacing;
                }

                public float getSpacing() {
                        return spacing;
                }

                public void addWord(String s) {
                        words.add(s);
                }

                public ArrayList<String> getWords() {
                        return words;
                }
        }
}

将上面的类添加到你的src文件夹中，并使用这个示例代码添加到你的布局中:

JustifiedTextView jtv= new JustifiedTextView(getApplicationContext(), "Lorem ipsum dolor sit amet... ");
LinearLayout place = (LinearLayout) findViewById(R.id.book_profile_content);
place.addView(jtv);

我找到了一个办法来解决这个问题，但是这个办法可能不是很优雅，但是效果还不错。

其原理是将每一行的空格替换为固定宽度的ImageSpan(颜色为透明)。

public static void justify(final TextView textView) {

    final AtomicBoolean isJustify = new AtomicBoolean(false);

    final String textString = textView.getText().toString();

    final TextPaint textPaint = textView.getPaint();

    final SpannableStringBuilder builder = new SpannableStringBuilder();

    textView.post(new Runnable() {
        @Override
        public void run() {

            if (!isJustify.get()) {

                final int lineCount = textView.getLineCount();
                final int textViewWidth = textView.getWidth();

                for (int i = 0; i < lineCount; i++) {

                    int lineStart = textView.getLayout().getLineStart(i);
                    int lineEnd = textView.getLayout().getLineEnd(i);

                    String lineString = textString.substring(lineStart, lineEnd);

                    if (i == lineCount - 1) {
                        builder.append(new SpannableString(lineString));
                        break;
                    }

                    String trimSpaceText = lineString.trim();
                    String removeSpaceText = lineString.replaceAll(" ", "");

                    float removeSpaceWidth = textPaint.measureText(removeSpaceText);
                    float spaceCount = trimSpaceText.length() - removeSpaceText.length();

                    float eachSpaceWidth = (textViewWidth - removeSpaceWidth) / spaceCount;

                    SpannableString spannableString = new SpannableString(lineString);
                    for (int j = 0; j < trimSpaceText.length(); j++) {
                        char c = trimSpaceText.charAt(j);
                        if (c == ' ') {
                            Drawable drawable = new ColorDrawable(0x00ffffff);
                            drawable.setBounds(0, 0, (int) eachSpaceWidth, 0);
                            ImageSpan span = new ImageSpan(drawable);
                            spannableString.setSpan(span, j, j + 1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
                        }
                    }

                    builder.append(spannableString);
                }

                textView.setText(builder);
                isJustify.set(true);
            }
        }
    });
}

我把代码放在GitHub上: https://github.com/twiceyuan/TextJustification

概述:

Android目前还不支持完全的理由。我们可以使用Webview和证明HTML而不是使用textview。它工作得很好。如果你们不清楚，可以问我:)

在xml文件中使用此属性即可

android:justificationMode="inter_word"