android常用工具类 －－－ UI操作

public class UIUtils {
public static Context getContext() {
return XXApplication.getApplication();
}

public static Thread getMainThread() {
return XXApplication.getMainThread();
}

public static long getMainThreadId() {
return XXApplication.getMainThreadId();
}

/**
* dip转换px
*/
public static int dip2px(int dip) {
final float scale = getContext().getResources().getDisplayMetrics().density;
return (int) (dip * scale + 0.5f);
}

/**
* pxz转换dip
*/
public static int px2dip(int px) {
final float scale = getContext().getResources().getDisplayMetrics().density;
return (int) (px / scale + 0.5f);
}

/**
* 获取主线程的handler
*/
public static Handler getHandler() {
return XXApplication.getMainThreadHandler();
}

/**
* 延时在主线程执行runnable
*/
public static boolean postDelayed(Runnable runnable, long delayMillis) {
return getHandler().postDelayed(runnable, delayMillis);
}

/**
* 在主线程执行runnable
*/
public static boolean post(Runnable runnable) {
return getHandler().post(runnable);
}

/**
* 从主线程looper里面移除runnable
*/
public static void removeCallbacks(Runnable runnable) {
getHandler().removeCallbacks(runnable);
}

public static View inflate(int resId) {
return LayoutInflater.from(getContext()).inflate(resId, null);
}

/**
* 获取资源
*/
public static Resources getResources() {
return getContext().getResources();
}

/**
* 获取文字
*/
public static String getString(int resId) {
return getResources().getString(resId);
}

/**
* 获取文字数组
*/
public static String[] getStringArray(int resId) {
return getResources().getStringArray(resId);
}

/**
* 获取dimen
*/
public static int getDimens(int resId) {
return getResources().getDimensionPixelSize(resId);
}

/**
* 获取drawable
*/
@SuppressWarnings("deprecation")
public static Drawable getDrawable(int resId) {
return getResources().getDrawable(resId);
}

/**
* 获取颜色
*/
public static int getColor(int resId) {
return getResources().getColor(resId);
}

/**
* 获取颜色选择器
*/
public static ColorStateList getColorStateList(int resId) {
return getResources().getColorStateList(resId);
}

/**
* 判断当前的线程是不是在主线程
*
* @return
*/
public static boolean isRunInMainThread() {
return android.os.Process.myTid() == getMainThreadId();
}

public static void runInMainThread(Runnable runnable) {
if (isRunInMainThread()) {
runnable.run();
} else {
post(runnable);
}
}

/**
* 对toast的简易封装。线程安全，可以在非UI线程调用。
*/
public static void showToastSafe(final int resId) {
showToastSafe(getString(resId));
}

/**
* 对toast的简易封装。线程安全，可以在非UI线程调用。
*/
public static void showToastSafe(final String str) {
if (isRunInMainThread()) {
showToast(str);
} else {
post(new Runnable() {
@Override
public void run() {
showToast(str);
}
});
}
}

private static Toast mToast;

private static void showToast(String text) {
if (mToast == null) {
mToast = Toast.makeText(UIUtils.getContext(), text, Toast.LENGTH_SHORT);
} else {
mToast.setText(text);
mToast.setDuration(Toast.LENGTH_SHORT);
}
mToast.show();
}

/**
* 得到屏幕的高度
*
* @param activity
* @return
*/
@SuppressWarnings("deprecation")
public static int getSreenHeight(Activity activity) {
return activity.getWindowManager().getDefaultDisplay().getHeight();
}

/**
* 得到屏幕的宽度
*
* @param activity
* @return
*/
@SuppressWarnings("deprecation")
public static int getSreenWidth(Activity activity) {
return activity.getWindowManager().getDefaultDisplay().getWidth();
}

/**
* 得到一个控件相对于屏幕左侧的位置
*
* @param view
* @return
*/
public static int getLeftOnScreen(View view) {
int[] location = new int[2];
view.getLocationOnScreen(location);
return location[0];

}

/**
* 得到一个控件相对于屏幕左侧的位置
*
* @param view
* @return
*/
public static int getRightOnScreen(View view) {
int[] location = new int[2];
view.getLocationOnScreen(location);
return location[0];

}

/**
* 得到一个控件相对于屏幕顶部的位置
*
* @param view
* @return
*/
public static int getTopOnScreen(View view) {
int[] location = new int[2];
view.getLocationOnScreen(location);
return location[1];

}

/**
* 获得状态栏的高度
*
* @return
*/
public static int getStatusHeight() {

int statusHeight = -1;
try {
Class clazz = Class.forName("com.android.internal.R$dimen");
Object object = clazz.newInstance();
int height = Integer.parseInt(clazz.getField("status_bar_height")
.get(object).toString());
statusHeight = getResources().getDimensionPixelSize(height);
} catch (Exception e) {
e.printStackTrace();
}
return statusHeight;
}

/**
* 设置沉浸式状态栏，以一个高度为0的View为基础(在每个Activity的setContentView之后添加效果为佳)
*
* @param activity 当前的Activity
* @param view     高度为0的view
* @param type     根布局的类型，线性布局为1，相对布局为2
*/
public static void setStatusColor(Activity activity, View view, int type, int i) {

try {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
activity.getWindow().addFlags(
WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
activity.getWindow().addFlags(
WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
if (1 == type) {
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, UIUtils.getStatusHeight());
view.setLayoutParams(params);
} else if (2 == type) {
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, UIUtils.getStatusHeight());
view.setLayoutParams(params);

}
view.setBackgroundColor(getColor(R.color.our_main_color));
} else {
view.setVisibility(View.GONE);
}
} catch (Exception e) {
view.setVisibility(View.GONE);
e.printStackTrace();
Log.e("MainActivity", "沉浸式状态栏设置出错");
}
}

/**
* 实现文本复制功能
* 注意：导包的时候
* API 11之前： android.text.ClipboardManager
* API 11之后： android.content.ClipboardManager
*
* @param content
*/
public static void copy(String content) {
// 得到剪贴板管理器
ClipboardManager cmb = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
cmb.setText(content.trim());
}

/**
* 实现粘贴功能
*
* @return
*/
public static String paste() {
// 得到剪贴板管理器
ClipboardManager cmb = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
return cmb.getText().toString().trim();
}

public static void setHeightByWidth(View view, float ratio) {
if (ratio == 0) {
throw new IllegalArgumentException("比例不能为零!");
} else {
view.getLayoutParams().height = (int) (view.getLayoutParams().width / ratio);
}
}
}