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PointsActivity.javaAPI DocAndroid 5.1 API4172Thu Mar 12 22:22:44 GMT 2015com.android.test.hwui

PointsActivity

public class PointsActivity extends android.app.Activity

Fields Summary
float
mSeekValue
Constructors Summary
Methods Summary
protected voidonCreate(android.os.Bundle savedInstanceState)


    
        
        super.onCreate(savedInstanceState);
        getWindow().setBackgroundDrawable(new ColorDrawable(0xff000000));
        SeekBar slider = new SeekBar(this);
        LinearLayout container = new LinearLayout(this);
        container.setOrientation(LinearLayout.VERTICAL);
        setContentView(container);

        container.addView(slider);
        slider.setMax(100);
        slider.setProgress(50);
        FrameLayout frame = new FrameLayout(this);
        final RenderingView gpuView = new RenderingView(this, Color.GREEN);
        frame.addView(gpuView);
        final RenderingView swView = new RenderingView(this, Color.RED);
        swView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
        frame.addView(swView);
        container.addView(frame);

        slider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                mSeekValue = (float)progress / 100.0f;
                float gpuAlpha = Math.min(2.0f * mSeekValue, 1f);
                gpuView.setAlpha(gpuAlpha);
                float swAlpha = Math.min((1 - mSeekValue) * 2.0f, 1f);
                System.out.println("(gpuAlpha, swAlpha = " + gpuAlpha + ", " + swAlpha);
                swView.setAlpha(swAlpha);
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
            }
        });
    
protected voidonDestroy()

        super.onDestroy();