背景
在Android4.4之前，我們的應(yīng)用沒法改變手機(jī)的狀態(tài)欄顏色，要么是黑乎乎的要么是白花花的，給人的感覺很不協(xié)調(diào)。所以4.4之后引入了沉浸式
1、改變狀態(tài)欄的透明度
2、改變狀態(tài)欄的顏色或者背景
很簡(jiǎn)單的功能，但是給人的效果確實(shí)煥然一新，不再有突兀的黑白腦門了。
創(chuàng)建styles.xml(v19) （創(chuàng)建一個(gè)名為styles文件，版本號(hào)選擇19）高版本AS也會(huì)自動(dòng)創(chuàng)建。
<style name="MyTheme" parent="AppTheme.NoActionBar">
<item name="android:windowTranslucentStatus">true</item>
</style>
image.png
效果如圖，確實(shí)是置頂了，但是我們只想讓背景置頂，其他的布局還在狀態(tài)欄下邊。
在布局文件的根布局中加入android:fitsSystemWindows=”true”
image.png
這樣就OK了。
如果我們不想用這個(gè)參數(shù)，想動(dòng)態(tài)改變狀態(tài)欄的透明度用這個(gè)方法。
具體需要注意的可以看StatusBar的工具類。
兩種方法，根據(jù)自己的實(shí)際情況來(lái)使用。
//li_tip 是需要下移的View
StatusBarUtil.setTranslucentForImageView(this@WriterActivity, 0, li_top)
這個(gè)是StatusBar的工具類，各種功能基本都有了。
public class StatusBarUtil {
public static final int DEFAULT_STATUS_BAR_ALPHA = 112;
private static final int FAKE_STATUS_BAR_VIEW_ID = R.id.statusbarutil_fake_status_bar_view;
private static final int FAKE_TRANSLUCENT_VIEW_ID = R.id.statusbarutil_translucent_view;
private static final int TAG_KEY_HAVE_SET_OFFSET = -123;
/**
* 設(shè)置狀態(tài)欄顏色
*
* @param activity 需要設(shè)置的 activity
* @param color 狀態(tài)欄顏色值
*/
public static void setColor(Activity activity, @ColorInt int color) {
setColor(activity, color, DEFAULT_STATUS_BAR_ALPHA);
}
/**
* 設(shè)置狀態(tài)欄顏色
*
* @param activity 需要設(shè)置的activity
* @param color 狀態(tài)欄顏色值
* @param statusBarAlpha 狀態(tài)欄透明度
*/
public static void setColor(Activity activity, @ColorInt int color, @IntRange(from = 0, to = 255) int statusBarAlpha) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
activity.getWindow().setStatusBarColor(calculateStatusColor(color, statusBarAlpha));
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
View fakeStatusBarView = decorView.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
if (fakeStatusBarView.getVisibility() == View.GONE) {
fakeStatusBarView.setVisibility(View.VISIBLE);
}
fakeStatusBarView.setBackgroundColor(calculateStatusColor(color, statusBarAlpha));
} else {
decorView.addView(createStatusBarView(activity, color, statusBarAlpha));
}
setRootView(activity);
}
}
/**
* 為滑動(dòng)返回界面設(shè)置狀態(tài)欄顏色
*
* @param activity 需要設(shè)置的activity
* @param color 狀態(tài)欄顏色值
*/
public static void setColorForSwipeBack(Activity activity, int color) {
setColorForSwipeBack(activity, color, DEFAULT_STATUS_BAR_ALPHA);
}
/**
* 為滑動(dòng)返回界面設(shè)置狀態(tài)欄顏色
*
* @param activity 需要設(shè)置的activity
* @param color 狀態(tài)欄顏色值
* @param statusBarAlpha 狀態(tài)欄透明度
*/
public static void setColorForSwipeBack(Activity activity, @ColorInt int color,
@IntRange(from = 0, to = 255) int statusBarAlpha) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
ViewGroup contentView = ((ViewGroup) activity.findViewById(android.R.id.content));
View rootView = contentView.getChildAt(0);
int statusBarHeight = getStatusBarHeight(activity);
if (rootView != null && rootView instanceof CoordinatorLayout) {
final CoordinatorLayout coordinatorLayout = (CoordinatorLayout) rootView;
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
coordinatorLayout.setFitsSystemWindows(false);
contentView.setBackgroundColor(calculateStatusColor(color, statusBarAlpha));
boolean isNeedRequestLayout = contentView.getPaddingTop() < statusBarHeight;
if (isNeedRequestLayout) {
contentView.setPadding(0, statusBarHeight, 0, 0);
coordinatorLayout.post(new Runnable() {
@Override
public void run() {
coordinatorLayout.requestLayout();
}
});
}
} else {
coordinatorLayout.setStatusBarBackgroundColor(calculateStatusColor(color, statusBarAlpha));
}
} else {
contentView.setPadding(0, statusBarHeight, 0, 0);
contentView.setBackgroundColor(calculateStatusColor(color, statusBarAlpha));
}
setTransparentForWindow(activity);
}
}
/**
* 設(shè)置狀態(tài)欄純色 不加半透明效果
*
* @param activity 需要設(shè)置的 activity
* @param color 狀態(tài)欄顏色值
*/
public static void setColorNoTranslucent(Activity activity, @ColorInt int color) {
setColor(activity, color, 0);
}
/**
* 設(shè)置狀態(tài)欄顏色(5.0以下無(wú)半透明效果,不建議使用)
*
* @param activity 需要設(shè)置的 activity
* @param color 狀態(tài)欄顏色值
*/
@Deprecated
public static void setColorDiff(Activity activity, @ColorInt int color) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
transparentStatusBar(activity);
ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content);
// 移除半透明矩形,以免疊加
View fakeStatusBarView = contentView.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
if (fakeStatusBarView.getVisibility() == View.GONE) {
fakeStatusBarView.setVisibility(View.VISIBLE);
}
fakeStatusBarView.setBackgroundColor(color);
} else {
contentView.addView(createStatusBarView(activity, color));
}
setRootView(activity);
}
/**
* 使?fàn)顟B(tài)欄半透明
* <p>
* 適用于圖片作為背景的界面,此時(shí)需要圖片填充到狀態(tài)欄
*
* @param activity 需要設(shè)置的activity
*/
public static void setTranslucent(Activity activity) {
setTranslucent(activity, DEFAULT_STATUS_BAR_ALPHA);
}
/**
* 使?fàn)顟B(tài)欄半透明
* <p>
* 適用于圖片作為背景的界面,此時(shí)需要圖片填充到狀態(tài)欄
*
* @param activity 需要設(shè)置的activity
* @param statusBarAlpha 狀態(tài)欄透明度
*/
public static void setTranslucent(Activity activity, @IntRange(from = 0, to = 255) int statusBarAlpha) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
setTransparent(activity);
addTranslucentView(activity, statusBarAlpha);
}
/**
* 針對(duì)根布局是 CoordinatorLayout, 使?fàn)顟B(tài)欄半透明
* <p>
* 適用于圖片作為背景的界面,此時(shí)需要圖片填充到狀態(tài)欄
*
* @param activity 需要設(shè)置的activity
* @param statusBarAlpha 狀態(tài)欄透明度
*/
public static void setTranslucentForCoordinatorLayout(Activity activity, @IntRange(from = 0, to = 255) int statusBarAlpha) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
transparentStatusBar(activity);
addTranslucentView(activity, statusBarAlpha);
}
/**
* 設(shè)置狀態(tài)欄全透明
*
* @param activity 需要設(shè)置的activity
*/
public static void setTransparent(Activity activity) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
transparentStatusBar(activity);
setRootView(activity);
}
/**
* 使?fàn)顟B(tài)欄透明(5.0以上半透明效果,不建議使用)
* <p>
* 適用于圖片作為背景的界面,此時(shí)需要圖片填充到狀態(tài)欄
*
* @param activity 需要設(shè)置的activity
*/
@Deprecated
public static void setTranslucentDiff(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
// 設(shè)置狀態(tài)欄透明
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
setRootView(activity);
}
}
/**
* 為DrawerLayout 布局設(shè)置狀態(tài)欄變色
*
* @param activity 需要設(shè)置的activity
* @param drawerLayout DrawerLayout
* @param color 狀態(tài)欄顏色值
*/
public static void setColorForDrawerLayout(Activity activity, DrawerLayout drawerLayout, @ColorInt int color) {
setColorForDrawerLayout(activity, drawerLayout, color, DEFAULT_STATUS_BAR_ALPHA);
}
/**
* 為DrawerLayout 布局設(shè)置狀態(tài)欄顏色,純色
*
* @param activity 需要設(shè)置的activity
* @param drawerLayout DrawerLayout
* @param color 狀態(tài)欄顏色值
*/
public static void setColorNoTranslucentForDrawerLayout(Activity activity, DrawerLayout drawerLayout, @ColorInt int color) {
setColorForDrawerLayout(activity, drawerLayout, color, 0);
}
/**
* 為DrawerLayout 布局設(shè)置狀態(tài)欄變色
*
* @param activity 需要設(shè)置的activity
* @param drawerLayout DrawerLayout
* @param color 狀態(tài)欄顏色值
* @param statusBarAlpha 狀態(tài)欄透明度
*/
public static void setColorForDrawerLayout(Activity activity, DrawerLayout drawerLayout, @ColorInt int color,
@IntRange(from = 0, to = 255) int statusBarAlpha) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
} else {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
// 生成一個(gè)狀態(tài)欄大小的矩形
// 添加 statusBarView 到布局中
ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
View fakeStatusBarView = contentLayout.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
if (fakeStatusBarView.getVisibility() == View.GONE) {
fakeStatusBarView.setVisibility(View.VISIBLE);
}
fakeStatusBarView.setBackgroundColor(color);
} else {
contentLayout.addView(createStatusBarView(activity, color), 0);
}
// 內(nèi)容布局不是 LinearLayout 時(shí),設(shè)置padding top
if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
contentLayout.getChildAt(1)
.setPadding(contentLayout.getPaddingLeft(), getStatusBarHeight(activity) + contentLayout.getPaddingTop(),
contentLayout.getPaddingRight(), contentLayout.getPaddingBottom());
}
// 設(shè)置屬性
setDrawerLayoutProperty(drawerLayout, contentLayout);
addTranslucentView(activity, statusBarAlpha);
}
/**
* 設(shè)置 DrawerLayout 屬性
*
* @param drawerLayout DrawerLayout
* @param drawerLayoutContentLayout DrawerLayout 的內(nèi)容布局
*/
private static void setDrawerLayoutProperty(DrawerLayout drawerLayout, ViewGroup drawerLayoutContentLayout) {
ViewGroup drawer = (ViewGroup) drawerLayout.getChildAt(1);
drawerLayout.setFitsSystemWindows(false);
drawerLayoutContentLayout.setFitsSystemWindows(false);
drawerLayoutContentLayout.setClipToPadding(true);
drawer.setFitsSystemWindows(false);
}
/**
* 為DrawerLayout 布局設(shè)置狀態(tài)欄變色(5.0以下無(wú)半透明效果,不建議使用)
*
* @param activity 需要設(shè)置的activity
* @param drawerLayout DrawerLayout
* @param color 狀態(tài)欄顏色值
*/
@Deprecated
public static void setColorForDrawerLayoutDiff(Activity activity, DrawerLayout drawerLayout, @ColorInt int color) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
// 生成一個(gè)狀態(tài)欄大小的矩形
ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
View fakeStatusBarView = contentLayout.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
if (fakeStatusBarView.getVisibility() == View.GONE) {
fakeStatusBarView.setVisibility(View.VISIBLE);
}
fakeStatusBarView.setBackgroundColor(calculateStatusColor(color, DEFAULT_STATUS_BAR_ALPHA));
} else {
// 添加 statusBarView 到布局中
contentLayout.addView(createStatusBarView(activity, color), 0);
}
// 內(nèi)容布局不是 LinearLayout 時(shí),設(shè)置padding top
if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0);
}
// 設(shè)置屬性
setDrawerLayoutProperty(drawerLayout, contentLayout);
}
}
/**
* 為 DrawerLayout 布局設(shè)置狀態(tài)欄透明
*
* @param activity 需要設(shè)置的activity
* @param drawerLayout DrawerLayout
*/
public static void setTranslucentForDrawerLayout(Activity activity, DrawerLayout drawerLayout) {
setTranslucentForDrawerLayout(activity, drawerLayout, DEFAULT_STATUS_BAR_ALPHA);
}
/**
* 為 DrawerLayout 布局設(shè)置狀態(tài)欄透明
*
* @param activity 需要設(shè)置的activity
* @param drawerLayout DrawerLayout
*/
public static void setTranslucentForDrawerLayout(Activity activity, DrawerLayout drawerLayout,
@IntRange(from = 0, to = 255) int statusBarAlpha) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
setTransparentForDrawerLayout(activity, drawerLayout);
addTranslucentView(activity, statusBarAlpha);
}
/**
* 為 DrawerLayout 布局設(shè)置狀態(tài)欄透明
*
* @param activity 需要設(shè)置的activity
* @param drawerLayout DrawerLayout
*/
public static void setTransparentForDrawerLayout(Activity activity, DrawerLayout drawerLayout) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
} else {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
// 內(nèi)容布局不是 LinearLayout 時(shí),設(shè)置padding top
if (!(contentLayout instanceof LinearLayout) && contentLayout.getChildAt(1) != null) {
contentLayout.getChildAt(1).setPadding(0, getStatusBarHeight(activity), 0, 0);
}
// 設(shè)置屬性
setDrawerLayoutProperty(drawerLayout, contentLayout);
}
/**
* 為 DrawerLayout 布局設(shè)置狀態(tài)欄透明(5.0以上半透明效果,不建議使用)
*
* @param activity 需要設(shè)置的activity
* @param drawerLayout DrawerLayout
*/
@Deprecated
public static void setTranslucentForDrawerLayoutDiff(Activity activity, DrawerLayout drawerLayout) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
// 設(shè)置狀態(tài)欄透明
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
// 設(shè)置內(nèi)容布局屬性
ViewGroup contentLayout = (ViewGroup) drawerLayout.getChildAt(0);
contentLayout.setFitsSystemWindows(true);
contentLayout.setClipToPadding(true);
// 設(shè)置抽屜布局屬性
ViewGroup vg = (ViewGroup) drawerLayout.getChildAt(1);
vg.setFitsSystemWindows(false);
// 設(shè)置 DrawerLayout 屬性
drawerLayout.setFitsSystemWindows(false);
}
}
/**
* 為頭部是 ImageView 的界面設(shè)置狀態(tài)欄全透明
*
* @param activity 需要設(shè)置的activity
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTransparentForImageView(Activity activity, View needOffsetView) {
setTranslucentForImageView(activity, 0, needOffsetView);
}
/**
* 為頭部是 ImageView 的界面設(shè)置狀態(tài)欄透明(使用默認(rèn)透明度)
*
* @param activity 需要設(shè)置的activity
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTranslucentForImageView(Activity activity, View needOffsetView) {
setTranslucentForImageView(activity, DEFAULT_STATUS_BAR_ALPHA, needOffsetView);
}
/**
* 為頭部是 ImageView 的界面設(shè)置狀態(tài)欄透明
*
* @param activity 需要設(shè)置的activity
* @param statusBarAlpha 狀態(tài)欄透明度
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTranslucentForImageView(Activity activity, @IntRange(from = 0, to = 255) int statusBarAlpha,
View needOffsetView) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
return;
}
setTransparentForWindow(activity);
addTranslucentView(activity, statusBarAlpha);
if (needOffsetView != null) {
Object haveSetOffset = needOffsetView.getTag(TAG_KEY_HAVE_SET_OFFSET);
if (haveSetOffset != null && (Boolean) haveSetOffset) {
return;
}
ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) needOffsetView.getLayoutParams();
layoutParams.setMargins(layoutParams.leftMargin, layoutParams.topMargin + getStatusBarHeight(activity),
layoutParams.rightMargin, layoutParams.bottomMargin);
needOffsetView.setTag(TAG_KEY_HAVE_SET_OFFSET, true);
}
}
/**
* 為 fragment 頭部是 ImageView 的設(shè)置狀態(tài)欄透明
*
* @param activity fragment 對(duì)應(yīng)的 activity
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTranslucentForImageViewInFragment(Activity activity, View needOffsetView) {
setTranslucentForImageViewInFragment(activity, DEFAULT_STATUS_BAR_ALPHA, needOffsetView);
}
/**
* 為 fragment 頭部是 ImageView 的設(shè)置狀態(tài)欄透明
*
* @param activity fragment 對(duì)應(yīng)的 activity
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTransparentForImageViewInFragment(Activity activity, View needOffsetView) {
setTranslucentForImageViewInFragment(activity, 0, needOffsetView);
}
/**
* 為 fragment 頭部是 ImageView 的設(shè)置狀態(tài)欄透明
*
* @param activity fragment 對(duì)應(yīng)的 activity
* @param statusBarAlpha 狀態(tài)欄透明度
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTranslucentForImageViewInFragment(Activity activity, @IntRange(from = 0, to = 255) int statusBarAlpha,
View needOffsetView) {
setTranslucentForImageView(activity, statusBarAlpha, needOffsetView);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
clearPreviousSetting(activity);
}
}
/**
* 隱藏偽狀態(tài)欄 View
*
* @param activity 調(diào)用的 Activity
*/
public static void hideFakeStatusBarView(Activity activity) {
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
View fakeStatusBarView = decorView.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
fakeStatusBarView.setVisibility(View.GONE);
}
View fakeTranslucentView = decorView.findViewById(FAKE_TRANSLUCENT_VIEW_ID);
if (fakeTranslucentView != null) {
fakeTranslucentView.setVisibility(View.GONE);
}
}
///////////////////////////////////////////////////////////////////////////////////
@TargetApi(Build.VERSION_CODES.KITKAT)
private static void clearPreviousSetting(Activity activity) {
ViewGroup decorView = (ViewGroup) activity.getWindow().getDecorView();
View fakeStatusBarView = decorView.findViewById(FAKE_STATUS_BAR_VIEW_ID);
if (fakeStatusBarView != null) {
decorView.removeView(fakeStatusBarView);
ViewGroup rootView = (ViewGroup) ((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0);
rootView.setPadding(0, 0, 0, 0);
}
}
/**
* 添加半透明矩形條
*
* @param activity 需要設(shè)置的 activity
* @param statusBarAlpha 透明值
*/
private static void addTranslucentView(Activity activity, @IntRange(from = 0, to = 255) int statusBarAlpha) {
ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content);
View fakeTranslucentView = contentView.findViewById(FAKE_TRANSLUCENT_VIEW_ID);
if (fakeTranslucentView != null) {
if (fakeTranslucentView.getVisibility() == View.GONE) {
fakeTranslucentView.setVisibility(View.VISIBLE);
}
fakeTranslucentView.setBackgroundColor(Color.argb(statusBarAlpha, 0, 0, 0));
} else {
contentView.addView(createTranslucentStatusBarView(activity, statusBarAlpha));
}
}
/**
* 生成一個(gè)和狀態(tài)欄大小相同的彩色矩形條
*
* @param activity 需要設(shè)置的 activity
* @param color 狀態(tài)欄顏色值
* @return 狀態(tài)欄矩形條
*/
private static View createStatusBarView(Activity activity, @ColorInt int color) {
return createStatusBarView(activity, color, 0);
}
/**
* 生成一個(gè)和狀態(tài)欄大小相同的半透明矩形條
*
* @param activity 需要設(shè)置的activity
* @param color 狀態(tài)欄顏色值
* @param alpha 透明值
* @return 狀態(tài)欄矩形條
*/
private static View createStatusBarView(Activity activity, @ColorInt int color, int alpha) {
// 繪制一個(gè)和狀態(tài)欄一樣高的矩形
View statusBarView = new View(activity);
LinearLayout.LayoutParams params =
new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight(activity));
statusBarView.setLayoutParams(params);
statusBarView.setBackgroundColor(calculateStatusColor(color, alpha));
statusBarView.setId(FAKE_STATUS_BAR_VIEW_ID);
return statusBarView;
}
/**
* 設(shè)置根布局參數(shù)
*/
private static void setRootView(Activity activity) {
ViewGroup parent = (ViewGroup) activity.findViewById(android.R.id.content);
for (int i = 0, count = parent.getChildCount(); i < count; i++) {
View childView = parent.getChildAt(i);
if (childView instanceof ViewGroup) {
childView.setFitsSystemWindows(true);
((ViewGroup) childView).setClipToPadding(true);
}
}
}
/**
* 設(shè)置透明
*/
private static void setTransparentForWindow(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
activity.getWindow()
.getDecorView()
.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow()
.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
}
/**
* 使?fàn)顟B(tài)欄透明
*/
@TargetApi(Build.VERSION_CODES.KITKAT)
private static void transparentStatusBar(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
activity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
} else {
activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
}
/**
* 創(chuàng)建半透明矩形 View
*
* @param alpha 透明值
* @return 半透明 View
*/
private static View createTranslucentStatusBarView(Activity activity, int alpha) {
// 繪制一個(gè)和狀態(tài)欄一樣高的矩形
View statusBarView = new View(activity);
LinearLayout.LayoutParams params =
new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight(activity));
statusBarView.setLayoutParams(params);
statusBarView.setBackgroundColor(Color.argb(alpha, 0, 0, 0));
statusBarView.setId(FAKE_TRANSLUCENT_VIEW_ID);
return statusBarView;
}
/**
* 獲取狀態(tài)欄高度
*
* @param context context
* @return 狀態(tài)欄高度
*/
private static int getStatusBarHeight(Context context) {
// 獲得狀態(tài)欄高度
int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
return context.getResources().getDimensionPixelSize(resourceId);
}
/**
* 計(jì)算狀態(tài)欄顏色
*
* @param color color值
* @param alpha alpha值
* @return 最終的狀態(tài)欄顏色
*/
private static int calculateStatusColor(@ColorInt int color, int alpha) {
if (alpha == 0) {
return color;
}
float a = 1 - alpha / 255f;
int red = color >> 16 & 0xff;
int green = color >> 8 & 0xff;
int blue = color & 0xff;
red = (int) (red * a + 0.5);
green = (int) (green * a + 0.5);
blue = (int) (blue * a + 0.5);
return 0xff << 24 | red << 16 | green << 8 | blue;
}
}
大家可以點(diǎn)個(gè)關(guān)注，告訴我大家想要深入探究哪些問(wèn)題，希望看到哪方面的文章，我可以免費(fèi)給你寫專題文章。。哈哈。。。
希望大家多多支持。。你的一個(gè)關(guān)注，是我堅(jiān)持的最大動(dòng)力。。
