## 话不多说直接上代码 ##
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Build;
import android.support.annotation.ColorInt;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.LinearLayout;
import com.dtma.grid.base.MainApplication;
import com.dtma.grid.customview.StatusBarView;
/**
* Created by dongchunlin on 2016/11/30.
*/
public class StatusBarUtil {
public static int DEFAULT_STATUS_BAR_ALPHA_TRANSPARENT = 112;
public static int DEFAULT_STATUS_BAR_ALPHA_NOT_TRANSPARENT = 0;
public static int DEFAULT_STATUS_BAR_ALPHA = DEFAULT_STATUS_BAR_ALPHA_NOT_TRANSPARENT;
private static int color1 = 0;
private static int color2 = 0;
private static int color3 = 0;
public static void setDefaultStatusBarNotTransparent() {
DEFAULT_STATUS_BAR_ALPHA = DEFAULT_STATUS_BAR_ALPHA_NOT_TRANSPARENT;
}
public static void setDefaultStatusBarTransparent() {
DEFAULT_STATUS_BAR_ALPHA = DEFAULT_STATUS_BAR_ALPHA_NOT_TRANSPARENT;
}
/**
* 设置状态栏颜色
*
* @param activity 需要设置的 activity
* @param color 状态栏颜色值
*/
public static void setColor(Activity activity, @ColorInt int color) {
setColor(activity, color, DEFAULT_STATUS_BAR_ALPHA);
}
/**
* 设置状态栏颜色
*
* @param activity 需要设置的activity
* @param color 状态栏颜色值
* @param statusBarAlpha 状态栏透明度
*/
public static void setColor(Activity activity, @ColorInt int color, 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();
int count = decorView.getChildCount();
if (count > 0 && decorView.getChildAt(count - 1) instanceof StatusBarView) {
decorView.getChildAt(count - 1).setBackgroundColor(calculateStatusColor(color, statusBarAlpha));
} else {
StatusBarView statusView = createStatusBarView(activity, color, statusBarAlpha);
decorView.addView(statusView);
}
setRootView(activity);
}
}
/**
* 设置状态栏纯色 不加半透明效果
*
* @param activity 需要设置的 activity
* @param color 状态栏颜色值
*/
public static void setColorNoTranslucent(Activity activity, @ColorInt int color) {
setColor(activity, color, 0);
}
/**
* 为头部是 ImageView 的界面设置状态栏全透明
*
* @param activity 需要设置的activity
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTransparentForImageView(Activity activity, View needOffsetView) {
setTranslucentForImageView(activity, 0, needOffsetView);
}
/**
* 为头部是 ImageView 的界面设置状态栏透明(使用默认透明度)
*
* @param activity 需要设置的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);
}
/**
* 为头部是 ImageView 的界面设置状态栏透明
*
* @param activity 需要设置的activity
* @param statusBarAlpha 状态栏透明度
* @param needOffsetView 需要向下偏移的 View
*/
public static void setTranslucentForImageView(Activity activity, int statusBarAlpha, View needOffsetView) {
if (Build.VERSION.SDK_INT = Build.VERSION_CODES.KITKAT && Build.VERSION.SDK_INT 0 && decorView.getChildAt(count - 1) instanceof StatusBarView) {
decorView.removeViewAt(count - 1);
ViewGroup rootView = (ViewGroup) ((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0);
rootView.setPadding(0, 0, 0, 0);
}
}
/**
* 添加半透明矩形条
*
* @param activity 需要设置的 activity
* @param statusBarAlpha 透明值
*/
private static void addTranslucentView(Activity activity, int statusBarAlpha) {
ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content);
if (contentView.getChildCount() > 1) {
// setArgb(color1,);
contentView.getChildAt(1).setBackgroundColor(Color.argb(statusBarAlpha, color1, color2, color3));
} else {
contentView.addView(createTranslucentStatusBarView(activity, statusBarAlpha));
}
}
public static void setArgb(int c1,int c2,int c3) {
color1 = c1;
color2 = c2;
color3 = c3;
}
/**
* 生成一个和状态栏大小相同的彩色矩形条
*
* @param activity 需要设置的 activity
* @param color 状态栏颜色值
* @return 状态栏矩形条
*/
private static StatusBarView createStatusBarView(Activity activity, @ColorInt int color) {
// 绘制一个和状态栏一样高的矩形
StatusBarView statusBarView = new StatusBarView(activity);
LinearLayout.LayoutParams params =
new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight(activity));
statusBarView.setLayoutParams(params);
statusBarView.setBackgroundColor(color);
return statusBarView;
}
/**
* 生成一个和状态栏大小相同的半透明矩形条
*
* @param activity 需要设置的activity
* @param color 状态栏颜色值
* @param alpha 透明值
* @return 状态栏矩形条
*/
private static StatusBarView createStatusBarView(Activity activity, @ColorInt int color, int alpha) {
// 绘制一个和状态栏一样高的矩形
StatusBarView statusBarView = new StatusBarView(activity);
LinearLayout.LayoutParams params =
new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight(activity));
statusBarView.setLayoutParams(params);
statusBarView.setBackgroundColor(calculateStatusColor(color, alpha));
return statusBarView;
}
/**
* 设置根布局参数
*/
private static void setRootView(Activity activity) {
ViewGroup parent = (ViewGroup) activity.findViewById(android.R.id.content);
for (int i = 0, count = parent.getChildCount(); i = 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);
}
}
/**
* 使状态栏透明
*/
@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);
}
}
/**
* 创建半透明矩形 View
*
* @param alpha 透明值
* @return 半透明 View
*/
private static StatusBarView createTranslucentStatusBarView(Activity activity, int alpha) {
// 绘制一个和状态栏一样高的矩形
StatusBarView statusBarView = new StatusBarView(activity);
LinearLayout.LayoutParams params =
new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight(activity));
statusBarView.setLayoutParams(params);
statusBarView.setBackgroundColor(Color.argb(alpha, color1, color2, color3));
return statusBarView;
}
/**
* 获取状态栏高度
*
* @param cntxt context
* @return 状态栏高度
*/
public static int getStatusBarHeight(Context cntxt/*context*/) {
// 获得状态栏高度
Context context = MainApplication.instance().getApplicationContext();
int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
return context.getResources().getDimensionPixelSize(resourceId);
}
/**
* 计算状态栏颜色
*
* @param color color值
* @param alpha alpha值
* @return 最终的状态栏颜色
*/
private static int calculateStatusColor(@ColorInt int color, int alpha) {
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 如果需要下载相关的用例源码：：
可以去github，附上链接地址
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/2332/viewspace-2798599/ ，如需转载，请注明出处，否则将追究法律责任。
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