android - 显示对话框时显示（启用）ActionBar

Question

当 Dialog 在 Android 中显示时如何显示 ActionBar？即使出现对话框，我的 ActionBar 也应该启用。在我的应用程序中，出现 dilog 时它变得暗淡。

Answer 1

import android.app.*;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.*;

public class ShowPopUp extends Activity {

    PopupWindow popUp;
    LinearLayout layout;
    TextView tv;
    LayoutParams params;
    LinearLayout mainLayout;
    Button but;
    boolean click = true;


    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        popUp = new PopupWindow(this);
        layout = new LinearLayout(this);
        mainLayout = new LinearLayout(this);
        tv = new TextView(this);
        but = new Button(this);
        but.setText("Click Me");
        but.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                if (click) {
                    popUp.showAtLocation(mainLayout, Gravity.BOTTOM, 10, 10);
                    popUp.update(50, 50, 300, 80);
                    click = false;
                } else {
                    popUp.dismiss();
                    click = true;
                }
            }

        });
        params = new LayoutParams(LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT);
        layout.setOrientation(LinearLayout.VERTICAL);
        tv.setText("Hi this is a sample text for popup window");
        layout.addView(tv, params);
        popUp.setContentView(layout);
        // popUp.showAtLocation(layout, Gravity.BOTTOM, 10, 10);
        mainLayout.addView(but, params);
        setContentView(mainLayout);
    }
}

希望对你有帮助