我正在构建一个聊天应用程序,所以我将气泡显示为textView的背景,还有一个imageView。
为了能够区分用户的消息,我隐藏了一个imageView(使用visibilty.Gone)并将layout_gravity更改为右边的左边以正确显示消息。
一切都很好,除非来自“马克扎克伯格”的消息(并且只有当他来自他时)太长,文本视图就会离开屏幕。
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);
}
这是一个screenShot,我现在拥有的(我知道泡泡是错的,请忽略,现在这不重要)。
答案 0 :(得分:3)
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);
}
答案 1 :(得分:1)
// try this way,hope this will help you...
<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" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1">
<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"
android:text="Hello bubbles! This is a very ver"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="@android:color/primary_text_light" />
</LinearLayout>
<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>