如何在android中创建一个弹出窗口？

Question

我需要在android中创建一个弹出窗口。我的要求是在第1页我会保留一个超链接，当我点击它应该打开一个弹出窗口。我已经经历了很多教程并尝试过，但没有一个适合我。请帮助我如何在android中创建一个弹出窗口。

Answer 1

import android.app.Activity; 
import android.os.Bundle; 
import android.view.Gravity; 
import android.view.View; 
import android.widget.Button; 
import android.widget.LinearLayout; 
import android.widget.PopupWindow; 
import android.widget.TextView; 
import android.view.ViewGroup.LayoutParams; 

public class ShowPopUpWindow extends Activity { 

    boolean isClicked = true; 
    PopupWindow popUpWindow; 
    LayoutParams layoutParams; 
    LinearLayout mainLayout; 
    Button btnClickHere; 
    LinearLayout containerLayout; 
    TextView tvMsg; 



    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     containerLayout = new LinearLayout(this); 
     mainLayout = new LinearLayout(this); 
     popUpWindow = new PopupWindow(this); 


     btnClickHere = new Button(this); 
     btnClickHere.setText("Click Here For Pop Up Window !!!"); 
     btnClickHere.setOnClickListener(new View.OnClickListener() { 

      public void onClick(View v) { 
       if (isClicked) { 
        isClicked = false; 
        popUpWindow.showAtLocation(mainLayout, Gravity.BOTTOM, 10, 10); 
        popUpWindow.update(50, 50, 320, 90); 
       } else { 
        isClicked = true; 
        popUpWindow.dismiss(); 
       } 
      } 

     }); 

     tvMsg = new TextView(this); 
     tvMsg.setText("Hi this is pop up window..."); 

     layoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, 
       LayoutParams.WRAP_CONTENT); 
     containerLayout.setOrientation(LinearLayout.VERTICAL); 
     containerLayout.addView(tvMsg, layoutParams); 
     popUpWindow.setContentView(containerLayout); 
     mainLayout.addView(btnClickHere, layoutParams); 
     setContentView(mainLayout); 

    } 
}