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- package com.alv.app.tugas_2;
- import android.graphics.Color;
- import android.os.Bundle;
- import android.support.design.widget.FloatingActionButton;
- import android.support.design.widget.Snackbar;
- import android.support.v7.app.AppCompatActivity;
- import android.support.v7.widget.Toolbar;
- import android.view.View;
- import android.view.Menu;
- import android.view.MenuItem;
- import android.widget.Button;
- import android.widget.LinearLayout;
- import android.widget.TextView;
- public class MainActivity extends AppCompatActivity implements View.OnClickListener {
- //JANGAN LUPA UNTUK MENDEKLARASIKAN VARIABEL YANG INGIN DIPAKAI
- Button btnRed,btnBlue,btnGreen,btnCyan,btnMagenta,btnYellow;
- LinearLayout backgroundLayout;
- TextView Tred,Tgreen,Tblue;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- //PROSEDUR INI DIBUAT UNTUK MEMANGGIL FUNGSI,PROSEDUR,DLL YANG TELAH ANDA BUAT
- super.onCreate(savedInstanceState);
- setContentView(R.layout.tugas_2);
- initialize();
- }
- private void initialize() { //FUNGSI INI DIBUAT AGAR DAPAT DIPANGGIL SAAT ANDROID DIBUKA
- //AGAR VARIABEL DAPAT DIPAKAI KITA PERLU ASSIGN ID DALAM LAYOUT KE VARIABEL DALAM JAVA
- btnRed = (Button) findViewById(R.id.red);
- btnGreen = (Button) findViewById(R.id.green);
- btnBlue = (Button) findViewById(R.id.blue);
- btnCyan = (Button) findViewById(R.id.cyan);
- btnMagenta = (Button) findViewById(R.id.magenta);
- btnYellow = (Button) findViewById(R.id.yellow);
- backgroundLayout = (LinearLayout) findViewById(R.id.background);
- btnRed.setOnClickListener(this);
- btnGreen.setOnClickListener(this);
- btnBlue.setOnClickListener(this);
- btnCyan.setOnClickListener(this);
- btnMagenta.setOnClickListener(this);
- btnYellow.setOnClickListener(this);
- }
- @Override
- public void onClick(View v) {
- //CODINGAN UNTUK MELIHAT BUTTON MANA YANG DI KLIK
- switch(v.getId()){
- case R.id.red: //MASUKKAN TIAP BUTTON DALAM CASE
- backgroundLayout.setBackgroundColor(Color.parseColor("#ff0000"));
- break;
- case R.id.green:
- backgroundLayout.setBackgroundColor(Color.parseColor("#00ff00"));
- break;
- case R.id.blue:
- backgroundLayout.setBackgroundColor(Color.parseColor("#0000ff"));
- break;
- case R.id.cyan:
- backgroundLayout.setBackgroundColor(Color.parseColor("#00ffff"));
- break;
- case R.id.magenta:
- backgroundLayout.setBackgroundColor(Color.parseColor("#ff00ff"));
- break;
- case R.id.yellow:
- backgroundLayout.setBackgroundColor(Color.parseColor("#ffff00"));
- break;
- }
- }
- @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);
- }
- }
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