Ank*_*kit 8 android window-managers fragment fragmentmanager display
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Display;
import android.view.WindowManager;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fm=getFragmentManager();
FragmentTransaction ft= fm.beginTransaction();
WindowManager wm= getWindowManager();
Display d=wm.getDefaultDisplay();
if (d.getWidth()>d.getHeight())
{
Fragment1 f1 = new Fragment1();
ft.replace(android.R.id.content, f1);
}
else
{
Fragment2 f2 = new Fragment2();
ft.replace(android.R.id.content, f2);
}
ft.commit();
}
}
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我试图使用Android的碎片和希望显示fragment1在显示器的宽度大于显示器的高度和更大fragment2时显示的高度比显示器的宽度,但使用时更大getWidth()和getHeight()机器人工作室是说,这些方法depricated。那么如何知道什么时候宽度更大,什么时候高度更大呢?
使用DisplayMetrics而不是Display.
尝试这个:
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Display;
import android.view.WindowManager;
import android.util.DisplayMetrics;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fm=getFragmentManager();
FragmentTransaction ft= fm.beginTransaction();
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
int height = displayMetrics.heightPixels;
int width = displayMetrics.widthPixels;
if (width > height)
{
Fragment1 f1 = new Fragment1();
ft.replace(android.R.id.content, f1);
}
else
{
Fragment2 f2 = new Fragment2();
ft.replace(android.R.id.content, f2);
}
ft.commit();
}
}
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