Android浸入式（什么叫浸入式）

现在比较流行的就是浸入式，也就是状态栏颜色和当前页面颜色保持一致，为了有更好的视觉效果。

首先：

在setContentView（）之前加上如下代码

tintManager.setStatusBarTintResource（）可以设置想要的通知栏颜色

@Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 setTranslucentStatus(true);
 SystemBarTintManager tintManager = new SystemBarTintManager(this);
 tintManager.setStatusBarTintEnabled(true);
 tintManager.setStatusBarTintResource(R.color.app_main_color);//通知栏所需颜色
 }
 setContentView(R.layout.activity_base);
 }
 @TargetApi(19)
 private void setTranslucentStatus(boolean on) {
 Window win = getWindow();
 WindowManager.LayoutParams winParams = win.getAttributes();
 final int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
 if (on) {
 winParams.flags |= bits;
 } else {
 winParams.flags &= ~bits;
 }
 win.setAttributes(winParams);
 }

效果图

SystemBarTintManager类附在下面

import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout.LayoutParams;
import java.lang.reflect.Method;
/**
 * Class to manage status and navigation bar tint effects when using KitKat
 * translucent system UI modes.
 *
 */
public class SystemBarTintManager {
 static {
 // Android allows a system property to override the presence of the navigation bar.
 // Used by the emulator.
 // See https://github.com/android/platform_frameworks_base/blob/master/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java#L1076
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 try {
 Class c = Class.forName("android.os.SystemProperties");
 Method m = c.getDeclaredMethod("get", String.class);
 m.setAccessible(true);
 sNavBarOverride = (String) m.invoke(null, "qemu.hw.mainkeys");
 } catch (Throwable e) {
 sNavBarOverride = null;
 }
 }
 }
 /**
 * The default system bar tint color value.
 */
 public static final int DEFAULT_TINT_COLOR = 0x99000000;
 private static String sNavBarOverride;
 private final SystemBarConfig mConfig;
 private boolean mStatusBarAvailable;
 private boolean mNavBarAvailable;
 private boolean mStatusBarTintEnabled;
 private boolean mNavBarTintEnabled;
 private View mStatusBarTintView;
 private View mNavBarTintView;
 /**
 * Constructor. Call this in the host activity onCreate method after its
 * content view has been set. You should always create new instances when
 * the host activity is recreated.
 *
 * @param activity The host activity.
 */
 @TargetApi(19)
 public SystemBarTintManager(Activity activity) {
 Window win = activity.getWindow();
 ViewGroup decorViewGroup = (ViewGroup) win.getDecorView();
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 // check theme attrs
 int[] attrs = {android.R.attr.windowTranslucentStatus,
 android.R.attr.windowTranslucentNavigation};
 TypedArray a = activity.obtainStyledAttributes(attrs);
 try {
 mStatusBarAvailable = a.getBoolean(0, false);
 mNavBarAvailable = a.getBoolean(1, false);
 } finally {
 a.recycle();
 }
 // check window flags
 WindowManager.LayoutParams winParams = win.getAttributes();
 int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
 if ((winParams.flags & bits) != 0) {
 mStatusBarAvailable = true;
 }
 bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
 if ((winParams.flags & bits) != 0) {
 mNavBarAvailable = true;
 }
 }
 mConfig = new SystemBarConfig(activity, mStatusBarAvailable, mNavBarAvailable);
 // device might not have virtual navigation keys
 if (!mConfig.hasNavigtionBar()) {
 mNavBarAvailable = false;
 }
 if (mStatusBarAvailable) {
 setupStatusBarView(activity, decorViewGroup);
 }
 if (mNavBarAvailable) {
 setupNavBarView(activity, decorViewGroup);
 }
 }
 /**
 * Enable tinting of the system status bar.
 *
 * If the platform is running Jelly Bean or earlier, or translucent system
 * UI modes have not been enabled in either the theme or via window flags,
 * then this method does nothing.
 *
 * @param enabled True to enable tinting, false to disable it (default).
 */
 public void setStatusBarTintEnabled(boolean enabled) {
 mStatusBarTintEnabled = enabled;
 if (mStatusBarAvailable) {
 mStatusBarTintView.setVisibility(enabled ? View.VISIBLE : View.GONE);
 }
 }
 /**
 * Enable tinting of the system navigation bar.
 *
 * If the platform does not have soft navigation keys, is running Jelly Bean
 * or earlier, or translucent system UI modes have not been enabled in either
 * the theme or via window flags, then this method does nothing.
 *
 * @param enabled True to enable tinting, false to disable it (default).
 */
 public void setNavigationBarTintEnabled(boolean enabled) {
 mNavBarTintEnabled = enabled;
 if (mNavBarAvailable) {
 mNavBarTintView.setVisibility(enabled ? View.VISIBLE : View.GONE);
 }
 }
 /**
 * Apply the specified color tint to all system UI bars.
 *
 * @param color The color of the background tint.
 */
 public void setTintColor(int color) {
 setStatusBarTintColor(color);
 setNavigationBarTintColor(color);
 }
 /**
 * Apply the specified drawable or color resource to all system UI bars.
 *
 * @param res The identifier of the resource.
 */
 public void setTintResource(int res) {
 setStatusBarTintResource(res);
 setNavigationBarTintResource(res);
 }
 /**
 * Apply the specified drawable to all system UI bars.
 *
 * @param drawable The drawable to use as the background, or null to remove it.
 */
 public void setTintDrawable(Drawable drawable) {
 setStatusBarTintDrawable(drawable);
 setNavigationBarTintDrawable(drawable);
 }
 /**
 * Apply the specified alpha to all system UI bars.
 *
 * @param alpha The alpha to use
 */
 public void setTintAlpha(float alpha) {
 setStatusBarAlpha(alpha);
 setNavigationBarAlpha(alpha);
 }
 /**
 * Apply the specified color tint to the system status bar.
 *
 * @param color The color of the background tint.
 */
 public void setStatusBarTintColor(int color) {
 if (mStatusBarAvailable) {
 mStatusBarTintView.setBackgroundColor(color);
 }
 }
 /**
 * Apply the specified drawable or color resource to the system status bar.
 *
 * @param res The identifier of the resource.
 */
 public void setStatusBarTintResource(int res) {
 if (mStatusBarAvailable) {
 mStatusBarTintView.setBackgroundResource(res);
 }
 }
 /**
 * Apply the specified drawable to the system status bar.
 *
 * @param drawable The drawable to use as the background, or null to remove it.
 */
 @SuppressWarnings("deprecation")
 public void setStatusBarTintDrawable(Drawable drawable) {
 if (mStatusBarAvailable) {
 mStatusBarTintView.setBackgroundDrawable(drawable);
 }
 }
 /**
 * Apply the specified alpha to the system status bar.
 *
 * @param alpha The alpha to use
 */
 @TargetApi(11)
 public void setStatusBarAlpha(float alpha) {
 if (mStatusBarAvailable && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
 mStatusBarTintView.setAlpha(alpha);
 }
 }
 /**
 * Apply the specified color tint to the system navigation bar.
 *
 * @param color The color of the background tint.
 */
 public void setNavigationBarTintColor(int color) {
 if (mNavBarAvailable) {
 mNavBarTintView.setBackgroundColor(color);
 }
 }
 /**
 * Apply the specified drawable or color resource to the system navigation bar.
 *
 * @param res The identifier of the resource.
 */
 public void setNavigationBarTintResource(int res) {
 if (mNavBarAvailable) {
 mNavBarTintView.setBackgroundResource(res);
 }
 }
 /**
 * Apply the specified drawable to the system navigation bar.
 *
 * @param drawable The drawable to use as the background, or null to remove it.
 */
 @SuppressWarnings("deprecation")
 public void setNavigationBarTintDrawable(Drawable drawable) {
 if (mNavBarAvailable) {
 mNavBarTintView.setBackgroundDrawable(drawable);
 }
 }
 /**
 * Apply the specified alpha to the system navigation bar.
 *
 * @param alpha The alpha to use
 */
 @TargetApi(11)
 public void setNavigationBarAlpha(float alpha) {
 if (mNavBarAvailable && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
 mNavBarTintView.setAlpha(alpha);
 }
 }
 /**
 * Get the system bar configuration.
 *
 * @return The system bar configuration for the current device configuration.
 */
 public SystemBarConfig getConfig() {
 return mConfig;
 }
 /**
 * Is tinting enabled for the system status bar?
 *
 * @return True if enabled, False otherwise.
 */
 public boolean isStatusBarTintEnabled() {
 return mStatusBarTintEnabled;
 }
 /**
 * Is tinting enabled for the system navigation bar?
 *
 * @return True if enabled, False otherwise.
 */
 public boolean isNavBarTintEnabled() {
 return mNavBarTintEnabled;
 }
 private void setupStatusBarView(Context context, ViewGroup decorViewGroup) {
 mStatusBarTintView = new View(context);
 LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, mConfig.getStatusBarHeight());
 params.gravity = Gravity.TOP;
 if (mNavBarAvailable && !mConfig.isNavigationAtBottom()) {
 params.rightMargin = mConfig.getNavigationBarWidth();
 }
 mStatusBarTintView.setLayoutParams(params);
 mStatusBarTintView.setBackgroundColor(DEFAULT_TINT_COLOR);
 mStatusBarTintView.setVisibility(View.GONE);
 decorViewGroup.addView(mStatusBarTintView);
 }
 private void setupNavBarView(Context context, ViewGroup decorViewGroup) {
 mNavBarTintView = new View(context);
 LayoutParams params;
 if (mConfig.isNavigationAtBottom()) {
 params = new LayoutParams(LayoutParams.MATCH_PARENT, mConfig.getNavigationBarHeight());
 params.gravity = Gravity.BOTTOM;
 } else {
 params = new LayoutParams(mConfig.getNavigationBarWidth(), LayoutParams.MATCH_PARENT);
 params.gravity = Gravity.RIGHT;
 }
 mNavBarTintView.setLayoutParams(params);
 mNavBarTintView.setBackgroundColor(DEFAULT_TINT_COLOR);
 mNavBarTintView.setVisibility(View.GONE);
 decorViewGroup.addView(mNavBarTintView);
 }
 /**
 * Class which describes system bar sizing and other characteristics for the current
 * device configuration.
 *
 */
 public static class SystemBarConfig {
 private static final String STATUS_BAR_HEIGHT_RES_NAME = "status_bar_height";
 private static final String NAV_BAR_HEIGHT_RES_NAME = "navigation_bar_height";
 private static final String NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME = "navigation_bar_height_landscape";
 private static final String NAV_BAR_WIDTH_RES_NAME = "navigation_bar_width";
 private static final String SHOW_NAV_BAR_RES_NAME = "config_showNavigationBar";
 private final boolean mTranslucentStatusBar;
 private final boolean mTranslucentNavBar;
 private final int mStatusBarHeight;
 private final int mActionBarHeight;
 private final boolean mHasNavigationBar;
 private final int mNavigationBarHeight;
 private final int mNavigationBarWidth;
 private final boolean mInPortrait;
 private final float mSmallestWidthDp;
 private SystemBarConfig(Activity activity, boolean translucentStatusBar, boolean traslucentNavBar) {
 Resources res = activity.getResources();
 mInPortrait = (res.getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT);
 mSmallestWidthDp = getSmallestWidthDp(activity);
 mStatusBarHeight = getInternalDimensionSize(res, STATUS_BAR_HEIGHT_RES_NAME);
 mActionBarHeight = getActionBarHeight(activity);
 mNavigationBarHeight = getNavigationBarHeight(activity);
 mNavigationBarWidth = getNavigationBarWidth(activity);
 mHasNavigationBar = (mNavigationBarHeight > 0);
 mTranslucentStatusBar = translucentStatusBar;
 mTranslucentNavBar = traslucentNavBar;
 }
 @TargetApi(14)
 private int getActionBarHeight(Context context) {
 int result = 0;
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
 TypedValue tv = new TypedValue();
 context.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true);
 result = TypedValue.complexToDimensionPixelSize(tv.data, context.getResources().getDisplayMetrics());
 }
 return result;
 }
 @TargetApi(14)
 private int getNavigationBarHeight(Context context) {
 Resources res = context.getResources();
 int result = 0;
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
 if (hasNavBar(context)) {
 String key;
 if (mInPortrait) {
 key = NAV_BAR_HEIGHT_RES_NAME;
 } else {
 key = NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME;
 }
 return getInternalDimensionSize(res, key);
 }
 }
 return result;
 }
 @TargetApi(14)
 private int getNavigationBarWidth(Context context) {
 Resources res = context.getResources();
 int result = 0;
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
 if (hasNavBar(context)) {
 return getInternalDimensionSize(res, NAV_BAR_WIDTH_RES_NAME);
 }
 }
 return result;
 }
 @TargetApi(14)
 private boolean hasNavBar(Context context) {
 Resources res = context.getResources();
 int resourceId = res.getIdentifier(SHOW_NAV_BAR_RES_NAME, "bool", "android");
 if (resourceId != 0) {
 boolean hasNav = res.getBoolean(resourceId);
 // check override flag (see static block)
 if ("1".equals(sNavBarOverride)) {
 hasNav = false;
 } else if ("0".equals(sNavBarOverride)) {
 hasNav = true;
 }
 return hasNav;
 } else { // fallback
 return !ViewConfiguration.get(context).hasPermanentMenuKey();
 }
 }
 private int getInternalDimensionSize(Resources res, String key) {
 int result = 0;
 int resourceId = res.getIdentifier(key, "dimen", "android");
 if (resourceId > 0) {
 result = res.getDimensionPixelSize(resourceId);
 }
 return result;
 }
 @SuppressLint("NewApi")
 private float getSmallestWidthDp(Activity activity) {
 DisplayMetrics metrics = new DisplayMetrics();
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
 activity.getWindowManager().getDefaultDisplay().getRealMetrics(metrics);
 } else {
 activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
 }
 float widthDp = metrics.widthPixels / metrics.density;
 float heightDp = metrics.heightPixels / metrics.density;
 return Math.min(widthDp, heightDp);
 }
 /**
 * Should a navigation bar appear at the bottom of the screen in the current
 * device configuration? A navigation bar may appear on the right side of
 * the screen in certain configurations.
 *
 * @return True if navigation should appear at the bottom of the screen, False otherwise.
 */
 public boolean isNavigationAtBottom() {
 return (mSmallestWidthDp >= 600 || mInPortrait);
 }
 /**
 * Get the height of the system status bar.
 *
 * @return The height of the status bar (in pixels).
 */
 public int getStatusBarHeight() {
 return mStatusBarHeight;
 }
 /**
 * Get the height of the action bar.
 *
 * @return The height of the action bar (in pixels).
 */
 public int getActionBarHeight() {
 return mActionBarHeight;
 }
 /**
 * Does this device have a system navigation bar?
 *
 * @return True if this device uses soft key navigation, False otherwise.
 */
 public boolean hasNavigtionBar() {
 return mHasNavigationBar;
 }
 /**
 * Get the height of the system navigation bar.
 *
 * @return The height of the navigation bar (in pixels). If the device does not have
 * soft navigation keys, this will always return 0.
 */
 public int getNavigationBarHeight() {
 return mNavigationBarHeight;
 }
 /**
 * Get the width of the system navigation bar when it is placed vertically on the screen.
 *
 * @return The width of the navigation bar (in pixels). If the device does not have
 * soft navigation keys, this will always return 0.
 */
 public int getNavigationBarWidth() {
 return mNavigationBarWidth;
 }
 /**
 * Get the layout inset for any system UI that appears at the top of the screen.
 *
 * @param withActionBar True to include the height of the action bar, False otherwise.
 * @return The layout inset (in pixels).
 */
 public int getPixelInsetTop(boolean withActionBar) {
 return (mTranslucentStatusBar ? mStatusBarHeight : 0) + (withActionBar ? mActionBarHeight : 0);
 }
 /**
 * Get the layout inset for any system UI that appears at the bottom of the screen.
 *
 * @return The layout inset (in pixels).
 */
 public int getPixelInsetBottom() {
 if (mTranslucentNavBar && isNavigationAtBottom()) {
 return mNavigationBarHeight;
 } else {
 return 0;
 }
 }
 /**
 * Get the layout inset for any system UI that appears at the right of the screen.
 *
 * @return The layout inset (in pixels).
 */
 public int getPixelInsetRight() {
 if (mTranslucentNavBar && !isNavigationAtBottom()) {
 return mNavigationBarWidth;
 } else {
 return 0;
 }
 }
 }
}

最后加入 android:fitsSystemWindows="true"必然显示不完整会被覆盖