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// Start dial app
Intent intent = new Intent(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:1234-12345678"));
startActivity(intent);

// Make a call directly
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:1234-12345678"));
startActivity(intent);

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public class ImageTextButton extends LinearLayout {
    public ImageTextButton(Context context) {
        this(context, null);
    }

    public ImageTextButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        TypedArray a = context.obtainStyledAttributes(attrs,
                R.styleable.ImageTextButton, 0, 0);
        String titleText = a.getString(R.styleable.ImageTextButton_title);

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<?xml version="1.0" encoding="utf-8"?>

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ListView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"

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public class ImageTextButton extends LinearLayout {
    public ImageTextButton(Context context) {
        this(context, null);
    }

    public ImageTextButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        TypedArray a = context.obtainStyledAttributes(attrs,
                R.styleable.ImageTextButton, 0, 0);
        String titleText = a.getString(R.styleable.ImageTextButton_title);

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public class LoadingDialogFragment extends DialogFragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(STYLE_NO_FRAME, android.R.style.Theme_Dialog);
    }

    @Override
    public void onStart() {
        super.onStart();

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package com.yourpackage.yourapp;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

public class AspectRatioImageView extends ImageView {

public AspectRatioImageView(Context context)

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    <uses-permission android:name="android.permission.READ_CONTACTS" />

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import android.os.Parcel;
import android.os.Parcelable;

/**
 * Created by Albert on 14-4-30.
 */
public class NameParcelable implements Parcelable {
    private String firsName;
    private String lastName;

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// in getView() of an adapter

TextView text = ViewHolder.get(view, R.id.id_of_text_view);
text.setText("Hello world!");

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public class DateUtils {
    public static String convertDateFormat(String time, String fromFormat, String toFormat, String failure) {
        SimpleDateFormat from = new SimpleDateFormat(fromFormat);
        SimpleDateFormat to = new SimpleDateFormat(toFormat);
        Date date = from.parse(time, new ParsePosition(0));
        if (date == null) {
            return failure;
        } else {
            return to.format(date);
        }