A custom AlertDialog that follows Material Design guidelines

README.md

To use Roboto font, download it from here ==> http://material-design.storage.googleapis.com/downloads/RobotoTTF.zip

colors.xml

<resources>
    <color name="text_title">#CC000000</color>
    <color name="text_secondary">#8C000000</color>
    <color name="light_blue">#03a9f4</color>
</resources>

dialog_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<inset xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@android:color/white"
    android:insetBottom="32dp"
    android:insetLeft="32dp"
    android:insetRight="32dp"
    android:insetTop="32dp" >

</inset>

dialog_layout_base.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/dialog_bg"
    android:orientation="vertical"
    android:windowMinWidthMajor="@android:dimen/dialog_min_width_major" >

    <TextView
        android:id="@android:id/text1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingBottom="16dp"
        android:paddingLeft="24dp"
        android:paddingRight="24dp"
        android:paddingTop="24dp"
        android:textColor="@color/text_title"
        android:textSize="20sp"
        android:textStyle="bold" />

    <ScrollView
        android:id="@+id/scrolltext"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_marginBottom="24dp"
        android:layout_weight="1"
        android:paddingLeft="24dp"
        android:paddingRight="24dp"
        android:scrollbarStyle="outsideOverlay" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <TextView
                android:id="@android:id/text2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textColor="@color/text_secondary"
                android:textSize="14sp" />
        </LinearLayout>
    </ScrollView>

    <FrameLayout
        android:id="@+id/content"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="24dp"
        android:paddingLeft="24dp"
        android:paddingRight="24dp" >
    </FrameLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="36dp"
        android:gravity="center|right"
        android:orientation="horizontal"
        android:paddingBottom="16dp"
        android:paddingLeft="16dp"
        android:paddingRight="16dp" >

        <Button
            android:id="@android:id/button1"
            style="?android:attr/borderlessButtonStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@android:color/transparent"
            android:gravity="center"
            android:minHeight="36dp"
            android:minWidth="88dp"
            android:text="decline"
            android:textAllCaps="true"
            android:textColor="@color/text_title"
            android:textSize="14sp"
            android:textStyle="bold" />

        <Button
            android:id="@android:id/button2"
            style="?android:attr/borderlessButtonStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@android:color/transparent"
            android:gravity="center"
            android:minHeight="36dp"
            android:minWidth="88dp"
            android:text="accept"
            android:textAllCaps="true"
            android:textColor="@color/light_blue"
            android:textSize="14sp"
            android:textStyle="bold" />
    </LinearLayout>

</LinearLayout>

MaterialDialog.java

import android.app.AlertDialog;
import android.content.Context;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.ScrollView;
import android.widget.TextView;

public class MaterialDialog extends AlertDialog {

    private Context mContext;
    private TextView mTitle;
    private TextView mContent;
    private Button mPositive;
    private Button mNegative;
    private FrameLayout mCustomContainer;
    private ScrollView mScrollText;
    
    private String title;
    private String contentText;
    private View customView;
    private Integer customResId;
    
    private Button.OnClickListener mPositiveClickListener;
    private Button.OnClickListener mNegativeClickListener;
    
    private String positiveText;
    private String negativeText;
    private boolean canDismiss = true;
    
    public MaterialDialog(Context context) {
        super(context);
        this.mContext = context;
    }
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.dialog_layout_base);
        mTitle = (TextView) findViewById(android.R.id.text1);
        mContent = (TextView) findViewById(android.R.id.text2);
        mCustomContainer = (FrameLayout) findViewById(R.id.content);
        mPositive = (Button) findViewById(android.R.id.button2);
        mNegative = (Button) findViewById(android.R.id.button1);
        mScrollText = (ScrollView) findViewById(R.id.scrolltext);
        
        
        mTitle.setTypeface(Typeface.createFromAsset(mContext.getAssets(), "fonts/Roboto-Medium.ttf"));
        mContent.setTypeface(Typeface.createFromAsset(mContext.getAssets(), "fonts/Roboto-Regular.ttf"));
     
    }
    
    @Override
    public void onStart() {
        super.onStart();
        if(title != null) {
            mTitle.setText(title);
        }else{
            mTitle.setVisibility(View.GONE);
        }
        
        if(contentText != null) {
            mContent.setText(contentText);
        }else {
            mScrollText.setVisibility(View.GONE);
        }
        
        if(customView != null && customResId == null) {
            mCustomContainer.addView(customView);
        }else if(customView == null && customResId != null) {
            LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            customView = inflater.inflate(customResId, null, false);
            mCustomContainer.addView(customView);
        }else if(customView == null && customResId == null){
            mContent.setVisibility(View.GONE);
        }
        
        if(positiveText != null && mPositiveClickListener != null) {
            mPositive.setText(positiveText);
            mPositive.setOnClickListener(mPositiveClickListener);
        }else{
            mPositive.setVisibility(View.GONE);
        }
        
        if(negativeText != null && mNegativeClickListener != null) {
            mNegative.setText(negativeText);
            mNegative.setOnClickListener(mNegativeClickListener);
        }else {
            mNegative.setVisibility(View.GONE);
        }
        this.setCanceledOnTouchOutside(canDismiss);
        this.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
        
    }
    
    public MaterialDialog setTitle(String t) {
        this.title = t;
        return this;
    }
    
    public MaterialDialog setMessage(String m) {
        this.contentText = m;
        return this;
    }
    
    public MaterialDialog setupPositiveButton(String text, Button.OnClickListener listener) {
        this.positiveText = text;
        this.mPositiveClickListener = listener;
        return this;
    }
    
    public MaterialDialog setupNegativeButton(String text, Button.OnClickListener listener) {
        this.negativeText = text;
        this.mNegativeClickListener = listener;
        return this;
    }
    
    public MaterialDialog setCustomView(View v) {
        this.customView = v;
        return this;
    }
    
    public MaterialDialog setCustomViewResource(int ResId) {
        this.customResId = ResId;
        return this;
    }
    
    public MaterialDialog dismissOnTouchOutside(boolean dismiss) {
        this.canDismiss = dismiss;
        return this;
    }
    
    public View getCustomView() {
        return this.customView;
    }
    
}

Sample.java

final MaterialDialog dialog = new MaterialDialog(MainActivity.this);
                dialog.setTitle("Test")
                //Use this if you want to set a text message
                .setMessage("Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test")
                
                //Use this for a custom layout resource
                //.setCustomViewResource(R.layout.dialog_test_layout);
                
                //Or pass the View
                //.setCustomView(yourView);
                
                //Set cancelable on touch outside (default true)
                //.dismissOnTouchOutside(false)
                .setupPositiveButton("Accept", new OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        // TODO Auto-generated method stub
                        dialog.dismiss();
                    }
                    
                });
                .setupNegativeButton("Decline", new OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        // TODO Auto-generated method stub
                        dialog.dismiss();
                    }
                    
                });
                dialog.show();