How can I create my own theme for alertDialog?

Question

I want to create a different theme for all of alertDialog instances. I need my own title view instead of the usual black title background. All text should have a blue color,

Answer 1

You can use layout as Different themes, styles, Backgrounds

customdialog.xml

customDialog.java

final Dialog favDialog = new Dialog(Myclass.this,
            android.R.style.Theme_Translucent_NoTitleBar_Fullscreen);


favDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    favDialog.getWindow().setFlags(
            WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);

    favDialog.setContentView(R.layout.reloadurlpopuplayout);

    favDialog.setCancelable(false);

    ImageView dialogImage = (ImageView) favDialog
            .findViewById(R.id.dialogheaderimage1);

    dialogImage.setBackgroundResource(R.drawable.questionmark);

    TextView dialogMesage = (TextView ) favDialog
            .findViewById(R.id.dialogmessgetext1);
    TextView dialogHeader = (TextView) favDialog
            .findViewById(R.id.dialogheadertext1);

    String descText = getString(R.string.RetryReportMessage);


    dialogMesage.setBackgroundColor(0x00000000);

    dialogMesage.setText(descText);

    dialogHeader.setText(R.string.BrockenLinkHeader);

    try {
        favDialog.show();
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }