您好我已经设置了一个自定义标题栏但应用程序崩溃了,我没有在LogCat中收到任何错误日志,我疯了。这是一些代码,专家可以看看有什么问题吗?
boolean isCustomTitleSupported;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
isCustomTitleSupported = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.about);
customizeTitleBar("My Title");
public void customizeTitleBar(String title){
if(isCustomTitleSupported){
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.customtitlebar);
TextView customTitleText = (TextView)findViewById(R.id.customtitle);
customTitleText.setText(title);
customTitleText.setTextColor(Color.WHITE);
}
}
customtitlebar.xml
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:id="@+id/customtitle"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:textStyle="bold"
android:padding="3px"
/>
</LinearLayout>
一些帮助将不胜感激
谢谢!
编辑:我注意到我没有扩展Activity,但我创建了一个超类我创建的超类,以便在我的所有活动中提供菜单。所以我改回来扩展Activity并且它正在工作,但这是一个问题,因为我也需要菜单。有没有任何技巧,所以我可以继续扩展BaseActivity甚至让标题栏工作?
答案 0 :(得分:3)
在设置内容视图之前,您是否尝试过设置标题栏?
customizeTitleBar("My Title");
setContentView(R.layout.about);
答案 1 :(得分:1)
您正尝试从错误的布局中提取customtitle
TextView。使用findViewById
时,默认为当前活动的布局,您将其设置为R.layout.about
。您需要使用布局inflater来膨胀R.layout.customtitlebar
,然后从中调用findViewById
(因为customtitle
视图位于customtitlebar
布局中)。
这样的事情:
View view = getLayoutInflater().inflate(R.layout.customtitlebar);
TextView customTitleText = (TextView)view.findViewById(R.id.customtitle);
答案 2 :(得分:0)
现在似乎已经完成了一半的工作,但没有设置标题,我的意思是我得到一个空的标题栏这里是我得到的:
<强> About.java 强>
public class About extends BaseActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
customizeTitleBar("APP TITLE");
setContentView(R.layout.about);
}
}
<强> BaseActivity.java 强>
public class BaseActivity extends Activity {
boolean isCustomTitleSupported;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
isCustomTitleSupported = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
customizeTitleBar("MY TITLE");
}
public void customizeTitleBar(String title){
if(isCustomTitleSupported){
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.customtitlebar);
View view = getLayoutInflater().inflate(R.layout.customtitlebar, null);
TextView customTitleText = (TextView)view.findViewById(R.id.customtitle);
customTitleText.setText(title);
customTitleText.setTextColor(Color.WHITE);
}
}
}
答案 3 :(得分:0)
申请窗口特征 - &gt; setContentView - &gt;自定义标题
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Boolean customTitle = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.listviewoffers);
customTitle(R.string.dashboard_offers, 0, R.id.listViewTitle, customTitle);
这是我onCreate的第一行。 customTitle()在我的超类中。
public void customTitle(int middle, int right, int altTitle, Boolean customTitle) {
if (customTitle) {
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.titlebarlayout);
TextView titleMiddle = (TextView) findViewById(R.id.middleTitleBar);
titleMiddle.setText(getResources().getString(middle));
TextView titleRight = (TextView) findViewById(R.id.rightTitleBar);
if (right != 0) {
titleRight.setText(getResources().getString(right));
} else {
titleRight.setVisibility(View.GONE);
}
TextView title = (TextView) findViewById(altTitle);
title.setVisibility(View.GONE);
} else {
setTitle(getResources().getString(R.string.dashboard_offers));
}
}
这是一个包含2个textviews的布局,一个在中间,一个在右边。权利可以设置为已经消失。