Pada kali ini saya mau share lirik lagu terbaru Question of using ContentLoadingProgressBar. Dan berjumpa lagi dengan saya di blog Free apk androiddan bagi teman teman yang ingin blog ini update terus silahkan berkomentar ya . .. ^_^ Baca juga tentang postingan saya sebelumnya : android.support.v4.widget.ContentLoadingProgressBar is subclass of ProgressBar. That waits a minimum time to be dismissed before showing. Once visible, the progress bar will be visible for a minimum amount of time to avoid "flashes" in the UI when an event could take a largely variable time to complete (from none, to a user perceivable amount).

 I TRY to use it in this exercise. To display and hide it by calling its show() and hide() methods. By calling show(), show the progress view after waiting for a minimum delay. If during that time, hide() is called, the view is never made visible.

When long progress run after show(), the ContentLoadingProgressBar shown after a short time.
When short progress run after show(), the ContentLoadingProgressBar will not shown.

But the problem is: once ContentLoadingProgressBar no shown once, it will not be shown again! I don't is it normal behavior, or anything wrong.


Here is my exercise:

MainActivity.java

package com.blogspot.android_er.androidcontentloadingprogressbar;

import android.os.AsyncTask;
import android.os.Bundle;
import android.os.SystemClock;
import android.support.v4.widget.ContentLoadingProgressBar;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;

public class MainActivity extends AppCompatActivity {

    Button btnStartShortProgress, btnStartLongProgress;
    ProgressBar progressBar;
    ContentLoadingProgressBar contentLoadingProgressBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btnStartShortProgress = (Button)findViewById(R.id.startshortprogress);
        btnStartLongProgress = (Button)findViewById(R.id.startlongprogress);
        progressBar = (ProgressBar)findViewById(R.id.ProgressBar);
        contentLoadingProgressBar =
                (ContentLoadingProgressBar)findViewById(R.id.ContentLoadingProgressBar);

        btnStartShortProgress.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                btnStartShortProgress.setEnabled(false);
                btnStartLongProgress.setEnabled(false);
                MyAsyncTask myAsyncTask = new MyAsyncTask();
                myAsyncTask.execute(3);
            }
        });

        btnStartLongProgress.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                btnStartShortProgress.setEnabled(false);
                btnStartLongProgress.setEnabled(false);
                MyAsyncTask myAsyncTask = new MyAsyncTask();
                myAsyncTask.execute(50);
            }
        });
    }

    public class MyAsyncTask extends AsyncTask<Integer, Integer, Void> {

        @Override
        protected Void doInBackground(Integer... integers) {
            int i = integers[0];

            while(i-- > 0){
                SystemClock.sleep(100);
            }

            return null;
        }

        @Override
        protected void onPreExecute() {
            progressBar.setVisibility(View.VISIBLE);
            contentLoadingProgressBar.show();
        }

        @Override
        protected void onPostExecute(Void aVoid) {
            progressBar.setVisibility(View.GONE);
            contentLoadingProgressBar.hide();
            btnStartShortProgress.setEnabled(true);
            btnStartLongProgress.setEnabled(true);
        }
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="20dp"
    android:orientation="vertical"
    tools:context="com.blogspot.android_er.androidcontentloadingprogressbar.MainActivity">

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:autoLink="web"
        android:text="http://android-er.blogspot.com/"
        android:textStyle="bold"
        />

    <Button
        android:id="@+id/startshortprogress"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Start SHORT Progress"/>
    <Button
        android:id="@+id/startlongprogress"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Start LONG Progress"/>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="ProgressBar"
        android:textStyle="bold"/>
    <ProgressBar
        android:id="@+id/ProgressBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:visibility="gone"/>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="ContentLoadingProgressBar"
        android:textStyle="bold"/>
    <android.support.v4.widget.ContentLoadingProgressBar
        android:id="@+id/ContentLoadingProgressBar"
        style="?android:attr/progressBarStyle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:visibility="gone"/>
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@mipmap/ic_launcher"/>

</LinearLayout>

~ Examples of ProgressBar and AsyncTask

Sekian Lirik lagu yang dapat saya bagikan tentang Question of using ContentLoadingProgressBar

. biar tetap update blognya silahkan berkomentar Di Free apk android sekian dari saya permalink untuk post kali ini adalah http://apkgameon.blogspot.com/2017/06/question-of-using-contentloadingprogres.html