Android 小说阅读护眼模式

实现方案：采用全局dialog 覆盖APP  悬浮在 其他APP之上，给dialog设置护眼色值

自定义护眼模式dialog

public class EyeProtectionDialog extends Dialog {

ImageView iv;

public EyeProtectionDialog(@NonNull Context context) {

super(context, R.style.eye_style);

requestWindowFeature(Window.FEATURE_NO_TITLE);

Window window = this.getWindow();

WindowManager.LayoutParams lp = window.getAttributes();

window.getDecorView().setPadding(0, 0, 0, 0);

lp.width = WindowManager.LayoutParams.MATCH_PARENT;

lp.height = WindowManager.LayoutParams.MATCH_PARENT;

lp.flags = WindowManager.LayoutParams.FLAG_FULLSCREEN | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN

| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |

WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE; //设置不影响下层的触碰

if (Build.VERSION.SDK_INT >= 26) {

lp.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;

} else {

lp.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;

}

window.setAttributes(lp);

window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);

}

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.eye_layout);

iv = findViewById(R.id.iv_eye);

}

@Override

public void show() {

super.show();

if (iv != null) {

iv.setBackgroundColor(getColor(30));

}

}

/**

* 设置护眼色

* @param blueFilterPercent

* @return

*/

public @ColorInt

int getColor(int blueFilterPercent) {

int realFilter = blueFilterPercent;

if (realFilter < 10) {

realFilter = 10;

} else if (realFilter > 80) {

realFilter = 80;

}

int a = (int) (realFilter / 80f * 180);

int r = (int) (200 - (realFilter / 80f) * 190);

int g = (int) (180 - (realFilter / 80f) * 170);

int b = (int) (60 - realFilter / 80f * 60);

return Color.argb(a, r, g, b);

}

}

dialog-style

eye_layout

权限以及展示

public void permission() {

if (Build.VERSION.SDK_INT >= 23) {

if (!Settings.canDrawOverlays(getContext())) {

Uri packageURI = Uri.parse("package:" + ReaderApplication.getInstance().getPackageName());

Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, packageURI);

startActivity(intent);

} else {

EyeProtectionDialog eyeProtectionDialog = new EyeProtectionDialog(getContext());

eyeProtectionDialog.show();

}

} else {

EyeProtectionDialog eyeProtectionDialog = new EyeProtectionDialog(getContext());

eyeProtectionDialog.show();

}

}