在 android 的对话框中显示 Activity 的上下文?

showing contexts of Activity in Dialog in android?

有没有办法在Dialog中显示Activity class的所有上下文? 我写了一个 java class 即 extend Activity 。但我想在对话框中显示它(因为好看),所以它有什么解决方案吗? 例如,这是我的第一个 Activity 单击红色按钮后,显示 SecondActivity extend Activity 谢谢!

您可以使用自定义对话框

import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;


public class CustomDialog extends Activity {

private Button buttonClick;

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.custom_dialog_main);

    buttonClick = (Button) findViewById(R.id.buttonClick);

    // add listener to button 
    buttonClick.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {

            // Create custom dialog object
            final Dialog dialog = new Dialog(CustomDialog.this);
            // Include dialog.xml file
            dialog.setContentView(R.layout.dialog);
            // Set dialog title
            dialog.setTitle("Custom Dialog");

            // set values for custom dialog components - text, image and button
            TextView text = (TextView) dialog.findViewById(R.id.textDialog);
            text.setText("Custom dialog Android example.");
            ImageView image = (ImageView) dialog.findViewById(R.id.imageDialog);
            image.setImageResource(R.drawable.image0);

            dialog.show();

            Button declineButton = (Button) dialog.findViewById(R.id.declineButton);
            // if decline button is clicked, close the custom dialog
            declineButton.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    // Close dialog
                    dialog.dismiss();
                }
            });


        }

    });

}

}

有关更多信息,请访问此 Link

是的,关于@Elltz,我建议在 Manifest.xml 文件中为您的 activity 使用 "Theme Dialog"。

<?xml version="1.0" encoding="utf-8"?>
<manifest
     <activity android:name=".SecondActivity"
               android:theme="@android:style/Theme.Dialog" >
             </activity>
</manifest>