Android 关于空气变平和膨胀
我有一个TextView组件。我想在每个活动中显示TextView,但不想在每个布局中编写此组件Android 关于空气变平和膨胀,android,Android,我有一个TextView组件。我想在每个活动中显示TextView,但不想在每个布局中编写此组件 public class Test extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceSt
public class Test extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.alarm);
LayoutInflater flater = LayoutInflater.from(this);
View view = flater.inflate(R.layout.toolbar_clearbalk, null);
TextView text=(TextView)view.findViewById(R.id.now_time);
}
时间是我发现的组成部分。如何让文本视图显示在当前界面中?您可以使用
元素将此布局包含在任何其他布局文件中:
<?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="match_parent" >
<include layout="@layout/toolbar_clearbalk" />
...
</LinearLayout>
...
如果不想将include标记添加到所有布局中
您可以使用抽象基类,然后从抽象类扩展全新的类
import android.app.Activity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;
abstract class BaseActivity extends Activity {
public View view;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LayoutInflater flater = LayoutInflater.from(this);
view = flater.inflate(R.layout.toolbar_clearbalk, null);
TextView text=(TextView)view.findViewById(R.id.now_time);
text.setText("bla bla bla");
}
}
import android.os.Bundle;
import android.widget.RelativeLayout;
public class MainActivity1 extends BaseActivity
{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
RelativeLayout parent = (RelativeLayout) findViewById(R.id.container);
parent.addView(view);
}
}
import android.os.Bundle;
import android.widget.RelativeLayout;
public class MainActivity2 extends BaseActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
RelativeLayout parent = (RelativeLayout) findViewById(R.id.container);
parent.addView(view);
}
}
import android.os.Bundle;
import android.widget.RelativeLayout;
public class MainActivity3 extends BaseActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
RelativeLayout parent = (RelativeLayout) findViewById(R.id.container);
parent.addView(view);
}
}