Question

使用setText更改文本后，如何更新屏幕..

代码：

TextView settings_text = (TextView) findViewById(R.id.tv_settings);
        settings_text.setText(Strings.SETTINGS);    


TextView terms_text = (TextView) findViewById(R.id.tv_terms);
         terms_text.setText(Strings.TERMS);

TextView about_text = (TextView) findViewById(R.id.tv_aboutus);
         about_text.setText(Strings.ABOUT);

Intent intent = new Intent(Language.this,MenuScreen.class);     
            startActivity(intent);  
    finish();

问题：在此之后这些值没有反映在屏幕上

建议我......谢谢你

Answer 1

延迟开始第二项活动：

import android.os.Handler;

new Handler().postDelayed(new Runnable(){
    public void run(){
       Intent intent = new Intent(Language.this,MenuScreen.class);     
       startActivity(intent);  
    }
},5000); // 5000 is represent time to delay execute code under run().

Answer 2

第一种方式：

使用警报对话框

 TextView terms_text = (TextView) findViewById(R.id.tv_terms);
     terms_text.setText(Strings.TERMS);

TextView about_text =（TextView）findViewById（R.id.tv_aboutus）; about_text.setText（Strings.ABOUT）;

 TextView contactus_text = (TextView) findViewById(R.id.tv_contactus);
 contactus_text.setText(Strings.CONTACT_US);

AlertDialog.Builder alertDialog = new AlertDialog.Builder（Language.this）;

    alertDialog.setTitle("Alert");
    alertDialog.setMessage("Language changed successfully");
    alertDialog.setCancelable(false);
    alertDialog.setPositiveButton("Continue",new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
                    Intent intent = new Intent(Language.this,MenuScreen.class);                                                             startActivity(intent);
                            finish();

}

}）;

alertDialog.show（）;

第二种方式：使用POSTDELAYED METHOD

TextView terms_text =（TextView）findViewById（R.id.tv_terms）; terms_text.setText（Strings.TERMS）;

TextView about_text =（TextView）findViewById（R.id.tv_aboutus）; about_text.setText（Strings.ABOUT）;

 TextView contactus_text = (TextView) findViewById(R.id.tv_contactus);
 contactus_text.setText(Strings.CONTACT_US);

new Handler().postDelayed(new Runnable(){
        public void run(){
               Intent intent = new Intent(Language.this,MenuScreen.class);     
                                           startActivity(intent);  
                                        }
                                    },100);

在android中使用setText更改文本后如何更新屏幕？

2 个答案: