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In this article, the editor introduces in detail "how Android adjusts the background color of the layout through SeekBar". The content is detailed, the steps are clear, and the details are handled properly. I hope that this article "Android how to adjust the background color of layout through SeekBar" can help you solve your doubts.

The method of setting the background Color of layout with RGB

RelativeLayout.setBackgroundColor (Color.rgb (rmeme gjorb))

Layout file

Main activity

Public class MainActivity extends Activity {private RelativeLayout relativeLayout; private SeekBar color_R,color_G,color_B; private static int r = 0Magneg = 0Magna b = 0; private TextView int_r,int_g,int_b; @ Override protected void onCreate (Bundle savedInstanceState) {super.onCreate (savedInstanceState); setContentView (R.layout.activity_main); relativeLayout = (RelativeLayout) findViewById (R.id.RelativeLayout) Color_R = (SeekBar) findViewById (R.id.R); color_G = (SeekBar) findViewById (R.id.G); color_B = (SeekBar) findViewById (R.id.B); int_r = (TextView) findViewById (R.id.int_R); int_g = (TextView) findViewById (R.id.int_G); int_b = (TextView) findViewById (R.id.int_B) Color_R.setMax; color_G.setMax; color_B.setMax; color_B.setProgress; color_G.setProgress; color_B.setProgress Color_R.setOnSeekBarChangeListener (new SeekBar.OnSeekBarChangeListener () {@ Override public void onProgressChanged (SeekBar seekBar,int progress, boolean fromUser) {} @ Override public void onStartTrackingTouch (SeekBar seekBar) {} @ Override public void onStopTrackingTouch (SeekBar seekBar) {r = seekBar.getProgress () String int_color_r = "R:" + String.valueOf (r); int_r.setText (int_color_r); relativeLayout.setBackgroundColor (Color.rgb);}}) Color_G.setOnSeekBarChangeListener (new SeekBar.OnSeekBarChangeListener () {@ Override public void onProgressChanged (SeekBar seekBar, int I, boolean fromUser) {} @ Override public void onStartTrackingTouch (SeekBar seekBar) {} @ Override public void onStopTrackingTouch (SeekBar seekBar) {g = seekBar.getProgress () String int_color_g = "G:" + String.valueOf (g); int_g.setText (int_color_g); relativeLayout.setBackgroundColor (Color.rgb);}}) Color_B.setOnSeekBarChangeListener (new SeekBar.OnSeekBarChangeListener () {@ Override public void onProgressChanged (SeekBar seekBar, int I, boolean fromUser) {} @ Override public void onStartTrackingTouch (SeekBar seekBar) {} @ Override public void onStopTrackingTouch (SeekBar seekBar) {b = seekBar.getProgress () String int_color_b = "B:" + String.valueOf (b); int_b.setText (int_color_b); relativeLayout.setBackgroundColor (Color.rgb);}});}}

Effect.

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