How to realize the pop-up window and link function of privacy policy in Android

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1. Effect display

Show the effect first and see if it's what you need.

two。 Concrete realization of 2.1 button beautification

Create a new button_shape.xml under the drawable folder

2.2 Pop-up window beautification

Create a new dialog_privacy_shape.xml under the drawable folder

2.3 Private Information

Create a new privacy.txt under the assets folder, which contains the body information of the pop-up window.

2.4 pop-up window layout

Create a new layout dialog_privacy_show.xml under the layout folder

Effect:

2.5 pop-up links

Create a new activity yinsi.xml

Write the activity layout first

Then modify the active java file so that you can click the link to jump out of the pop-up window.

Package cn.edu.cdut.xihe;import androidx.appcompat.app.AppCompatActivity;import android.app.AlertDialog;import android.app.Dialog;import android.os.Bundle;import android.util.DisplayMetrics;import android.view.LayoutInflater;import android.view.View;import android.view.WindowManager;import android.widget.TextView;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;public class yinsi extends AppCompatActivity {Dialog dialog @ Override protected void onCreate (Bundle savedInstanceState) {super.onCreate (savedInstanceState); setContentView (R.layout.activity_yinsi);} public void onClickAgree (View v) {dialog.dismiss ();} public void onClickDisagree (View v) {finish ();} public void onClickPrivacy (View v) {showPrivacy ("privacy.txt") / / Privacy policy text file placed in the assets directory} public void showPrivacy (String privacyFileName) {String str = initAssets (privacyFileName); final View inflate = LayoutInflater.from (yinsi.this) .originate (R.layout.dialog_privacy_show, null); TextView tv_title = (TextView) inflate.findViewById (R.id.tv_title); tv_title.setText (Xi and Privacy Policy) TextView tv_content = (TextView) inflate.findViewById (R.id.tv_content); tv_content.setText (str); dialog = new AlertDialog .Builder (yinsi.this) .setView (inflate) .show (); / / get DisplayMetrics dm = new DisplayMetrics () through WindowManager; getWindowManager () .getDefaultDisplay () .getMetrics (dm) Final WindowManager.LayoutParams params = dialog.getWindow (). GetAttributes (); params.width = dm.widthPixels*4/5; params.height = dm.heightPixels*1/2; dialog.getWindow (). SetAttributes (params); dialog.getWindow (). SetBackgroundDrawableResource (android.R.color.transparent) Read data from txt file under assets * / public String initAssets (String fileName) {String str = null; try {InputStream inputStream = getAssets () .open (fileName); str = getString (inputStream);} catch (IOException E1) {e1.printStackTrace ();} return str } public static String getString (InputStream inputStream) {InputStreamReader inputStreamReader = null; try {inputStreamReader = new InputStreamReader (inputStream, "UTF-8");} catch (UnsupportedEncodingException E1) {e1.printStackTrace ();} BufferedReader reader = new BufferedReader (inputStreamReader); StringBuffer sb = new StringBuffer ("); String line Try {while ((line = reader.readLine ())! = null) {sb.append (line); sb.append (");}} catch (IOException e) {e.printStackTrace ();} return sb.toString ();}} 3. Further optimization

1. Since the new one is an activity, the link can be placed in another layout file and introduced with include.

two。 Generally speaking, users need a pop-up window only when they start for the first time. You can add a pop-up program to the startup of the main page and add a program to determine whether it is started for the first time.

3. Click on the link here is a pop-up window, more often click on the link will jump to the corresponding policy page, there is no further preparation, write a WebView sub-packaged web page file.

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