android - 屏幕外的TextView

Question

我正在构建一个聊天应用程序，所以我将气泡显示为 textView 和 imageView 的背景。

为了能够区分来自用户的消息，我隐藏了一个 imageView(使用 visibilty.Gone)并将 layout_gravity 更改为右侧或左侧以正确显示消息。

一切都很好，除了当来自“马克扎克伯格”的消息(并且只有当它来自他)太长时，textview 会超出屏幕。

这是我的布局:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/wrapper"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">

<br.com.guitcastro.meetapp.views.CircularImageView
    android:id="@+id/leftImageView"
    android:layout_width="70dp"
    android:layout_height="70dp"
    android:layout_gravity="center_vertical"
    android:padding="10dp"
    android:paddingLeft="10dp"
    android:visibility="visible" />

<TextView
    android:id="@+id/comment"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:layout_margin="10dp"
    android:background="@drawable/bubble_purple"
    android:gravity="center_vertical|center_horizontal"
    android:text="Hello bubbles! This is a very ver"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="@android:color/primary_text_light" />

<br.com.guitcastro.meetapp.views.CircularImageView
    android:id="@+id/rightImageView"
    android:layout_width="70dp"
    android:layout_height="70dp"
    android:layout_gravity="center_vertical"
    android:padding="10dp"
    android:paddingLeft="10dp"
        android:visibility="visible" />
</LinearLayout>

显示“正确”布局的代码:

   if (left) {
        rightImageView.setVisibility(View.GONE);
        leftImageView.setVisibility(View.VISIBLE);
        messageText.setTextColor(Color.WHITE);
        this.setImageDrawable(leftImageView, me);

        messageText.setBackgroundResource(R.drawable.bubble_green);
        wrapper.setGravity(Gravity.LEFT);
    } else {
        leftImageView.setVisibility(View.GONE);
        rightImageView.setVisibility(View.VISIBLE);
        this.setImageDrawable(rightImageView, StringUtils.parseName(message.getFrom()));

        messageText.setBackgroundResource(R.drawable.bubble_yellow);
        wrapper.setGravity(Gravity.RIGHT);
    }

这是我目前拥有的屏幕截图(我知道气泡是错误的，请忽略，这现在不重要)。

Answer 1

maybe this can help you

// get dimensions
Display display = getWindowManager().getDefaultDisplay();
        int width = display.getWidth(); // largura

// get dimensions in percent
double percentWidth = width/100;

int percentToSetHeight = percentHeight*80;

if (left) {
        rightImageView.setVisibility(View.GONE);
        leftImageView.setVisibility(View.VISIBLE);
        messageText.setTextColor(Color.WHITE);
    messageText.setMaxWidth(percentToSetHeight);
        this.setImageDrawable(leftImageView, me);

        messageText.setBackgroundResource(R.drawable.bubble_green);
        wrapper.setGravity(Gravity.LEFT);
    } else {
        leftImageView.setVisibility(View.GONE);
        rightImageView.setVisibility(View.VISIBLE);
        this.setImageDrawable(rightImageView, StringUtils.parseName(message.getFrom()));
    messageText.setMaxWidth(percentToSetHeight);
        messageText.setBackgroundResource(R.drawable.bubble_yellow);
        wrapper.setGravity(Gravity.RIGHT);
    }