MainActivity.java
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | package com.example.programmingknowledge.seekbarapp; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.widget.SeekBar; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends ActionBarActivity { private static SeekBar seek_bar; private static TextView text_view; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); seebbarr( ); } public void seebbarr( ){ seek_bar = (SeekBar)findViewById(R.id.seekBar); text_view =(TextView)findViewById(R.id.textView); text_view.setText("Covered : " + seek_bar.getProgress() + " / " +seek_bar.getMax()); seek_bar.setOnSeekBarChangeListener( new SeekBar.OnSeekBarChangeListener() { int progress_value; @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { progress_value = progress; text_view.setText("Covered : " + progress + " / " +seek_bar.getMax()); Toast.makeText(MainActivity.this,"SeekBar in progress",Toast.LENGTH_LONG).show(); } @Override public void onStartTrackingTouch(SeekBar seekBar) { Toast.makeText(MainActivity.this,"SeekBar in StartTracking",Toast.LENGTH_LONG).show(); } @Override public void onStopTrackingTouch(SeekBar seekBar) { text_view.setText("Covered : " + progress_value + " / " +seek_bar.getMax()); Toast.makeText(MainActivity.this,"SeekBar in StopTracking",Toast.LENGTH_LONG).show(); } } ); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } } |
activity_main.xml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | <RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity" android:id="@+id/theLayout"> <SeekBar android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/seekBar" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_marginTop="51dp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceLarge" android:text="Large Text" android:id="@+id/textView" android:layout_below="@+id/seekBar" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_marginTop="102dp" /> </RelativeLayout> |
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Extra Tags : Android, programming, tutorial, beginners , develop, ,mobile phone, Environment Setup, Application Components, Activity Lifecycle, Service Lifecycle, Application Architecture, Publishing Application, Debugging Applications, Hadnling Events, Layouts, User Interface Controls, Styles and Themes, Handling Rotation, data storage, managing media, Send Email, Send SMS, Phone Calls
