TextView用字母打破了我的话
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我的要求：按内容宽度和最大宽度90％创建“入泡”。
我有这个标记：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="1.0"
tools:background="@color/white_smoke">
<LinearLayout
android:id="@+id/flBubble"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="start"
android:background="@drawable/bubble_in"
android:layout_weight="0.9">
<ImageView
android:id="@+id/ivSay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="?android:attr/selectableItemBackground"
android:contentDescription="@string/default_content_description"
android:padding="8dp"
android:src="@drawable/ic_play_circle_outline_black_24dp"
android:tint="@color/primary"/>
<TextView
android:id="@+id/tvValue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:padding="8dp"
android:textColor="@color/black"
android:textSize="16sp"
tools:text="I would like to go to an Italian restaurant"/>
</LinearLayout>
<View
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0.1"/>
</LinearLayout>
有时我得到以下结果：
但我希望得到以下结果（它错误地鼓励Android Studio预览中的屏幕截图）：
我怎样才能防止用字母打破单词restaraunt？
UPDATE
虽然我使用minSdk = 15我尝试使用breakStrategy但我没有得到预期的结果。 android:breakStrategy="simple"：
android:breakStrategy="balanced"：
我发现了一个相关的问题：Force next word to a new line if the word is too long for the textview，但我没有说明如何使用layout_width="wrap_content获得TextView的最大可用宽度？
如果我可以覆盖TextView.setText并在需要时在那里放置换行符，那将是很棒的。
答案
您可以使用webview来实现此行为。在webview中，您可以使用css来调整文本。看看this answer
更新
您可以计算字符串的宽度并将
添加到字符串需要拆分的字符串
Rect bounds = new Rect();
Paint textPaint = textView.getPaint();
textPaint.getTextBounds(text, 0, text.length(), bounds);
int height = bounds.height();
int width = bounds.width();
结果以像素为单位，因此只需检查view或屏幕的宽度并分割字符串。
UPDAE2：示例代码
我刚刚在活动onCreate中编写了一个简单布局的示例，您可以在适配器中实现它或者适合您的任何东西。
TextView textView = (TextView) findViewById(R.id.txt); //textview with empty text
Rect bounds = new Rect();
Paint textPaint = textView.getPaint();
String text = "some long text here.....";// text data to work on
textPaint.getTextBounds(text, 0, text.length(), bounds);
int textWidth = bounds.width();// get text width in pixel
int marginPadding = 100;// we have some padding and margin from xml layouts
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
int rootWidth = displayMetrics.widthPixels-marginPadding;// maximum width on screan
if (textWidth > rootWidth) { // check if need to split the string.
int lineMax = (text.length() * rootWidth) / textWidth; // maximum Characters for each line
String result = text.replaceAll("(.{" + String.valueOf(lineMax) + "})", "$1
"); // regex to replace each group(lineMax) of Chars with group of char + new line
textView.setText(result);
} else
textView.setText(text);
更新＃3：Listview的固定代码
的onCreate
ArrayList<String> data = new ArrayList<>();
data.add("000");
data.add("aaaaaaaaaaa");
data.add("aaaaaaaaaaa bbbbbbbbbbbb");
data.add("aaaaaaaaaaa bbbbbbbbbbbb cccccccccccccccc");
data.add("aaaaaaaaaaa bbbbbbbbbbbb cccccccccccccccc ddddddddddddd");
data.add("aaaaaaaaaaa bbbbbbbbbbbb cccccccccccccccc ddddddddddddd eeeeeeeeeeeee");
data.add("aaaaaaaaaaa bbbbbbbbbbbb cccccccccccccccc ddddddddddddd eeeeeeeeeeeee ffffffffffffffffff");
data.add("aaaaaaaaaaa bbbbbbbbbbbb cccccccccccccccc ddddddddddddd eeeeeeeeeeeee ffffffffffffffffff gggggggggggggggg");
data.add("aaaaaaaaaaa bbbbbbbbbbbb cccccccccccccccc ddddddddddddd eeeeeeeeeeeee ffffffffffffffffff gggggggggggggggg hhhhhhhhhhhhhhhh");
ListView listView = (ListView) findViewById(R.id.listview);
MyAdapter adapter= new MyAdapter(data,this);
listView.setAdapter(adapter);
adapter.notifyDataSetChanged();
my adapter.Java
public class MyAdapter extends BaseAdapter {
private LayoutInflater inflater = null;
Context context;
ArrayList<String> data;
public MyAdapter(ArrayList<String> data, Context context) {
this.context = context;
this.data = data;
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
return data.size();
}
@Override
public Object getItem(int i) {
return data.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(final int i, View convertView, ViewGroup viewGroup) {
final View view = inflater.inflate(R.layout.item, null);
final TextView tv_text = (TextView) view.findViewById(R.id.tvValue);
if (data.get(i) != null) {
tv_text.post(new Runnable() {
@Override
public void run() {
//TextView is Ready to be used.
fixText(data.get(i),tv_text);
}
});
}
return view;
}
private void fixText(String text, TextView textView) {
Rect bounds = new Rect();
Paint textPaint = textView.getPaint();
textPaint.getTextBounds(text, 0, text.length(), bounds);
int textWidth = bounds.width();// get text width in pixel
int marginPadding = 100;// we have some padding and margin from xml layouts
DisplayMetrics displayMetrics = new DisplayMetrics();
((MainActivity) context).getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
int rootWidth = textView.getWidth();//displayMetrics.widthPixels - marginPadding;// maximum width on screan
if (textWidth > rootWidth) { // check if need to split the string.
//int lineMax = (text.length() * rootWidth) / textWidth; // maximum Characters for each line
//String result = text.replaceAll("(.{" + String.valueOf(lineMax-5) + "})", "$1
"); // regex to replace each group(lineMax) of Chars with group of char + new line
String result = wrapText(rootWidth,text);
textView.setText(result);
} else
textView.setText(text);
}
private String wrapText(int textviewWidth,String mQuestion) {
String temp = "";
String sentence = "";
String[] array = mQuestion.split(" "); // split by space
for (String word : array) {
if ((temp.length() + word.length()) < textviewWidth) { // create a temp variable and check if length with new word exceeds textview width.
temp += " "+word;
} else {
sentence += temp+"
"; // add new line character
temp = word;
}
}
return (sentence.replaceFirst(" ", "")+temp);
}
item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="1.0"
tools:background="@color/colorAccent">
<LinearLayout
android:id="@+id/flBubble"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="start"
android:background="@color/colorPrimary"
android:layout_weight="0.9">
<ImageView
android:id="@+id/ivSay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="?android:attr/selectableItemBackground"
android:contentDescription="default_content_description"
android:padding="8dp"
android:src="@android:drawable/ic_media_play"
android:tint="@color/colorPrimaryDark" />
<TextView
android:id="@+id/tvValue"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:padding="8dp"
android:textColor="#000000"
android:textSize="16sp"
tools:text="I would like to go to an Italian restaurant jkjk l;'"/>
</LinearLayout>
<View
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0.1"/>
</LinearLayout>
另一答案
对文本视图使用MaxWidth属性，否则应为textview提供宽度
<com.custom.views.CustomTextView
android:id="@+id/txt_send_chat"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="center_vertical"
android:maxWidth="250dp"
android:textColor="@color/color_chat_sender"
android:textSize="16sp"
app:font_name="@string/font_roboto_regular" />
另一答案
试试这个
<TextView
android:id="@+id/tvValue"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
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